From 4e87195739f2a5d9a05451b48773c8afdc680765 Mon Sep 17 00:00:00 2001 From: akiyamn Date: Sun, 24 Sep 2023 23:22:21 +1000 Subject: Initial commit (by create-cloudflare CLI) --- node_modules/node-forge/CHANGELOG.md | 412 ++ node_modules/node-forge/LICENSE | 331 ++ node_modules/node-forge/README.md | 2071 ++++++++++ node_modules/node-forge/dist/forge.all.min.js | 2 + node_modules/node-forge/dist/forge.all.min.js.map | 1 + node_modules/node-forge/dist/forge.min.js | 2 + node_modules/node-forge/dist/forge.min.js.map | 1 + node_modules/node-forge/dist/prime.worker.min.js | 2 + .../node-forge/dist/prime.worker.min.js.map | 1 + node_modules/node-forge/flash/README.md | 48 + node_modules/node-forge/flash/package.json | 28 + node_modules/node-forge/flash/swf/SocketPool.swf | Bin 0 -> 21162 bytes node_modules/node-forge/lib/aes.js | 1091 +++++ node_modules/node-forge/lib/aesCipherSuites.js | 282 ++ node_modules/node-forge/lib/asn1-validator.js | 91 + node_modules/node-forge/lib/asn1.js | 1434 +++++++ node_modules/node-forge/lib/baseN.js | 186 + node_modules/node-forge/lib/cipher.js | 230 ++ node_modules/node-forge/lib/cipherModes.js | 999 +++++ node_modules/node-forge/lib/des.js | 496 +++ node_modules/node-forge/lib/ed25519.js | 1072 +++++ node_modules/node-forge/lib/forge.js | 13 + node_modules/node-forge/lib/form.js | 149 + node_modules/node-forge/lib/hmac.js | 146 + node_modules/node-forge/lib/http.js | 1346 ++++++ node_modules/node-forge/lib/index.all.js | 16 + node_modules/node-forge/lib/index.js | 33 + node_modules/node-forge/lib/jsbn.js | 1264 ++++++ node_modules/node-forge/lib/kem.js | 168 + node_modules/node-forge/lib/log.js | 319 ++ node_modules/node-forge/lib/md.all.js | 13 + node_modules/node-forge/lib/md.js | 11 + node_modules/node-forge/lib/md5.js | 289 ++ node_modules/node-forge/lib/mgf.js | 12 + node_modules/node-forge/lib/mgf1.js | 57 + node_modules/node-forge/lib/oids.js | 179 + node_modules/node-forge/lib/pbe.js | 1023 +++++ node_modules/node-forge/lib/pbkdf2.js | 211 + node_modules/node-forge/lib/pem.js | 237 ++ node_modules/node-forge/lib/pkcs1.js | 276 ++ node_modules/node-forge/lib/pkcs12.js | 1074 +++++ node_modules/node-forge/lib/pkcs7.js | 1260 ++++++ node_modules/node-forge/lib/pkcs7asn1.js | 410 ++ node_modules/node-forge/lib/pki.js | 102 + node_modules/node-forge/lib/prime.js | 297 ++ node_modules/node-forge/lib/prime.worker.js | 168 + node_modules/node-forge/lib/prng.js | 419 ++ node_modules/node-forge/lib/pss.js | 241 ++ node_modules/node-forge/lib/random.js | 191 + node_modules/node-forge/lib/rc2.js | 410 ++ node_modules/node-forge/lib/rsa.js | 1949 +++++++++ node_modules/node-forge/lib/sha1.js | 319 ++ node_modules/node-forge/lib/sha256.js | 327 ++ node_modules/node-forge/lib/sha512.js | 561 +++ node_modules/node-forge/lib/socket.js | 287 ++ node_modules/node-forge/lib/ssh.js | 236 ++ node_modules/node-forge/lib/tls.js | 4282 ++++++++++++++++++++ node_modules/node-forge/lib/tlssocket.js | 249 ++ node_modules/node-forge/lib/util.js | 2652 ++++++++++++ node_modules/node-forge/lib/x509.js | 3242 +++++++++++++++ node_modules/node-forge/lib/xhr.js | 738 ++++ node_modules/node-forge/package.json | 123 + 62 files changed, 34079 insertions(+) create mode 100644 node_modules/node-forge/CHANGELOG.md create mode 100644 node_modules/node-forge/LICENSE create mode 100644 node_modules/node-forge/README.md create mode 100644 node_modules/node-forge/dist/forge.all.min.js create mode 100644 node_modules/node-forge/dist/forge.all.min.js.map create mode 100644 node_modules/node-forge/dist/forge.min.js create mode 100644 node_modules/node-forge/dist/forge.min.js.map create mode 100644 node_modules/node-forge/dist/prime.worker.min.js create mode 100644 node_modules/node-forge/dist/prime.worker.min.js.map create mode 100644 node_modules/node-forge/flash/README.md create mode 100644 node_modules/node-forge/flash/package.json create mode 100644 node_modules/node-forge/flash/swf/SocketPool.swf create mode 100644 node_modules/node-forge/lib/aes.js create mode 100644 node_modules/node-forge/lib/aesCipherSuites.js create mode 100644 node_modules/node-forge/lib/asn1-validator.js create mode 100644 node_modules/node-forge/lib/asn1.js create mode 100644 node_modules/node-forge/lib/baseN.js create mode 100644 node_modules/node-forge/lib/cipher.js create mode 100644 node_modules/node-forge/lib/cipherModes.js create mode 100644 node_modules/node-forge/lib/des.js create mode 100644 node_modules/node-forge/lib/ed25519.js create mode 100644 node_modules/node-forge/lib/forge.js create mode 100644 node_modules/node-forge/lib/form.js create mode 100644 node_modules/node-forge/lib/hmac.js create mode 100644 node_modules/node-forge/lib/http.js create mode 100644 node_modules/node-forge/lib/index.all.js create mode 100644 node_modules/node-forge/lib/index.js create mode 100644 node_modules/node-forge/lib/jsbn.js create mode 100644 node_modules/node-forge/lib/kem.js create mode 100644 node_modules/node-forge/lib/log.js create mode 100644 node_modules/node-forge/lib/md.all.js create mode 100644 node_modules/node-forge/lib/md.js create mode 100644 node_modules/node-forge/lib/md5.js create mode 100644 node_modules/node-forge/lib/mgf.js create mode 100644 node_modules/node-forge/lib/mgf1.js create mode 100644 node_modules/node-forge/lib/oids.js create mode 100644 node_modules/node-forge/lib/pbe.js create mode 100644 node_modules/node-forge/lib/pbkdf2.js create mode 100644 node_modules/node-forge/lib/pem.js create mode 100644 node_modules/node-forge/lib/pkcs1.js create mode 100644 node_modules/node-forge/lib/pkcs12.js create mode 100644 node_modules/node-forge/lib/pkcs7.js create mode 100644 node_modules/node-forge/lib/pkcs7asn1.js create mode 100644 node_modules/node-forge/lib/pki.js create mode 100644 node_modules/node-forge/lib/prime.js create mode 100644 node_modules/node-forge/lib/prime.worker.js create mode 100644 node_modules/node-forge/lib/prng.js create mode 100644 node_modules/node-forge/lib/pss.js create mode 100644 node_modules/node-forge/lib/random.js create mode 100644 node_modules/node-forge/lib/rc2.js create mode 100644 node_modules/node-forge/lib/rsa.js create mode 100644 node_modules/node-forge/lib/sha1.js create mode 100644 node_modules/node-forge/lib/sha256.js create mode 100644 node_modules/node-forge/lib/sha512.js create mode 100644 node_modules/node-forge/lib/socket.js create mode 100644 node_modules/node-forge/lib/ssh.js create mode 100644 node_modules/node-forge/lib/tls.js create mode 100644 node_modules/node-forge/lib/tlssocket.js create mode 100644 node_modules/node-forge/lib/util.js create mode 100644 node_modules/node-forge/lib/x509.js create mode 100644 node_modules/node-forge/lib/xhr.js create mode 100644 node_modules/node-forge/package.json (limited to 'node_modules/node-forge') diff --git a/node_modules/node-forge/CHANGELOG.md b/node_modules/node-forge/CHANGELOG.md new file mode 100644 index 0000000..27d0e3a --- /dev/null +++ b/node_modules/node-forge/CHANGELOG.md @@ -0,0 +1,412 @@ +Forge ChangeLog +=============== + +## 1.3.1 - 2022-03-29 + +### Fixes +- RFC 3447 and RFC 8017 allow for optional `DigestAlgorithm` `NULL` parameters + for `sha*` algorithms and require `NULL` paramters for `md2` and `md5` + algorithms. + +## 1.3.0 - 2022-03-17 + +### Security +- Three RSA PKCS#1 v1.5 signature verification issues were reported by Moosa + Yahyazadeh (moosa-yahyazadeh@uiowa.edu). +- **HIGH**: Leniency in checking `digestAlgorithm` structure can lead to + signature forgery. + - The code is lenient in checking the digest algorithm structure. This can + allow a crafted structure that steals padding bytes and uses unchecked + portion of the PKCS#1 encoded message to forge a signature when a low + public exponent is being used. For more information, please see + ["Bleichenbacher's RSA signature forgery based on implementation + error"](https://mailarchive.ietf.org/arch/msg/openpgp/5rnE9ZRN1AokBVj3VqblGlP63QE/) + by Hal Finney. + - CVE ID: [CVE-2022-24771](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24771) + - GHSA ID: [GHSA-cfm4-qjh2-4765](https://github.com/digitalbazaar/forge/security/advisories/GHSA-cfm4-qjh2-4765) +- **HIGH**: Failing to check tailing garbage bytes can lead to signature + forgery. + - The code does not check for tailing garbage bytes after decoding a + `DigestInfo` ASN.1 structure. This can allow padding bytes to be removed + and garbage data added to forge a signature when a low public exponent is + being used. For more information, please see ["Bleichenbacher's RSA + signature forgery based on implementation + error"](https://mailarchive.ietf.org/arch/msg/openpgp/5rnE9ZRN1AokBVj3VqblGlP63QE/) + by Hal Finney. + - CVE ID: [CVE-2022-24772](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24772) + - GHSA ID: [GHSA-x4jg-mjrx-434g](https://github.com/digitalbazaar/forge/security/advisories/GHSA-x4jg-mjrx-434g) +- **MEDIUM**: Leniency in checking type octet. + - `DigestInfo` is not properly checked for proper ASN.1 structure. This can + lead to successful verification with signatures that contain invalid + structures but a valid digest. + - CVE ID: [CVE-2022-24773](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24773) + - GHSA ID: [GHSA-2r2c-g63r-vccr](https://github.com/digitalbazaar/forge/security/advisories/GHSA-2r2c-g63r-vccr) + +### Fixed +- [asn1] Add fallback to pretty print invalid UTF8 data. +- [asn1] `fromDer` is now more strict and will default to ensuring all input + bytes are parsed or throw an error. A new option `parseAllBytes` can disable + this behavior. + - **NOTE**: The previous behavior is being changed since it can lead to + security issues with crafted inputs. It is possible that code doing custom + DER parsing may need to adapt to this new behavior and optional flag. +- [rsa] Add and use a validator to check for proper structure of parsed ASN.1 + `RSASSA-PKCS-v1_5` `DigestInfo` data. Additionally check that the hash + algorithm identifier is a known value from RFC 8017 + `PKCS1-v1-5DigestAlgorithms`. An invalid `DigestInfo` or algorithm identifier + will now throw an error. + - **NOTE**: The previous lenient behavior is being changed to be more strict + since it could lead to security issues with crafted inputs. It is possible + that code may have to handle the errors from these stricter checks. + +### Added +- [oid] Added missing RFC 8017 PKCS1-v1-5DigestAlgorithms algorithm + identifiers: + - `1.2.840.113549.2.2` / `md2` + - `2.16.840.1.101.3.4.2.4` / `sha224` + - `2.16.840.1.101.3.4.2.5` / `sha512-224` + - `2.16.840.1.101.3.4.2.6` / `sha512-256` + +## 1.2.1 - 2022-01-11 + +### Fixed +- [tests]: Load entire module to improve top-level testing and coverage + reporting. +- [log]: Refactor logging setup to avoid use of `URLSearchParams`. + +## 1.2.0 - 2022-01-07 + +### Fixed +- [x509] 'Expected' and 'Actual' issuers were backwards in verification failure + message. + +### Added +- [oid,x509]: Added OID `1.3.14.3.2.29 / sha1WithRSASignature` for sha1 with + RSA. Considered a deprecated equivalent to `1.2.840.113549.1.1.5 / + sha1WithRSAEncryption`. See [discussion and + links](https://github.com/digitalbazaar/forge/issues/825). + +### Changed +- [x509]: Reduce duplicate code. Add helper function to create a signature + digest given an signature algorithm OID. Add helper function to verify + signatures. + +## 1.1.0 - 2022-01-06 + +### Fixed +- [x509]: Correctly compute certificate issuer and subject hashes to match + behavior of openssl. +- [pem]: Accept certificate requests with "NEW" in the label. "BEGIN NEW + CERTIFICATE REQUEST" handled as "BEGIN CERTIFICATE REQUEST". + +## 1.0.0 - 2022-01-04 + +### Notes +- **1.0.0**! +- This project is over a decade old! Time for a 1.0.0 release. +- The URL related changes may expose bugs in some of the networking related + code (unrelated to the much wider used cryptography code). The automated and + manual test coverage for this code is weak at best. Issues or patches to + update the code or tests would be appreciated. + +### Removed +- **SECURITY**, **BREAKING**: Remove `forge.debug` API. The API has the + potential for prototype pollution. This API was only briefly used by the + maintainers for internal project debug purposes and was never intended to be + used with untrusted user inputs. This API was not documented or advertised + and is being removed rather than fixed. +- **SECURITY**, **BREAKING**: Remove `forge.util.parseUrl()` (and + `forge.http.parseUrl` alias) and use the [WHATWG URL + Standard](https://url.spec.whatwg.org/). `URL` is supported by modern browers + and modern Node.js. This change is needed to address URL parsing security + issues. If `forge.util.parseUrl()` is used directly or through `forge.xhr` or + `forge.http` APIs, and support is needed for environments without `URL` + support, then a polyfill must be used. +- **BREAKING**: Remove `forge.task` API. This API was never used, documented, + or advertised by the maintainers. If anyone was using this API and wishes to + continue development it in other project, please let the maintainers know. + Due to use in the test suite, a modified version is located in + `tests/support/`. +- **BREAKING**: Remove `forge.util.makeLink`, `forge.util.makeRequest`, + `forge.util.parseFragment`, `forge.util.getQueryVariables`. Replace with + `URL`, `URLSearchParams`, and custom code as needed. + +### Changed +- **BREAKING**: Increase supported Node.js version to 6.13.0 for URL support. +- **BREAKING**: Renamed `master` branch to `main`. +- **BREAKING**: Release process updated to use tooling that prefixes versions + with `v`. Other tools, scripts, or scanners may need to adapt. +- **BREAKING**: Remove docs related to Bower and + [forge-dist](https://github.com/digitalbazaar/forge-dist). Install using + [another method](./README.md#installation). + +### Added +- OIDs for `surname`, `title`, and `givenName`. + +### Fixed +- **BREAKING**: OID 2.5.4.5 name fixed from `serialName` to `serialNumber`. + Depending on how applications used this id to name association it could cause + compatibility issues. + +## 0.10.0 - 2020-09-01 + +### Changed +- **BREAKING**: Node.js 4 no longer supported. The code *may* still work, and + non-invasive patches to keep it working will be considered. However, more + modern tools no longer support old Node.js versions making testing difficult. + +### Removed +- **BREAKING**: Remove `util.getPath`, `util.setPath`, and `util.deletePath`. + `util.setPath` had a potential prototype pollution security issue when used + with unsafe inputs. These functions are not used by `forge` itself. They date + from an early time when `forge` was targeted at providing general helper + functions. The library direction changed to be more focused on cryptography. + Many other excellent libraries are more suitable for general utilities. If + you need a replacement for these functions, consider `get`, `set`, and `unset` + from [lodash](https://lodash.com/). But also consider the potential similar + security issues with those APIs. + +## 0.9.2 - 2020-09-01 + +### Changed +- Added `util.setPath` security note to function docs and to README. + +### Notes +- **SECURITY**: The `util.setPath` function has the potential to cause + prototype pollution if used with unsafe input. + - This function is **not** used internally by `forge`. + - The rest of the library is unaffected by this issue. + - **Do not** use unsafe input with this function. + - Usage with known input should function as expected. (Including input + intentionally using potentially problematic keys.) + - No code changes will be made to address this issue in 0.9.x. The current + behavior *could* be considered a feature rather than a security issue. + 0.10.0 will be released that removes `util.getPath` and `util.setPath`. + Consider `get` and `set` from [lodash](https://lodash.com/) if you need + replacements. But also consider the potential similar security issues with + those APIs. + - https://snyk.io/vuln/SNYK-JS-NODEFORGE-598677 + - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7720 + +## 0.9.1 - 2019-09-26 + +### Fixed +- Ensure DES-CBC given IV is long enough for block size. + +## 0.9.0 - 2019-09-04 + +### Added +- Add ed25519.publicKeyFromAsn1 and ed25519.privateKeyFromAsn1 APIs. +- A few OIDs used in EV certs. + +### Fixed +- Improve ed25519 NativeBuffer check. + +## 0.8.5 - 2019-06-18 + +### Fixed +- Remove use of `const`. + +## 0.8.4 - 2019-05-22 + +### Changed +- Replace all instances of Node.js `new Buffer` with `Buffer.from` and `Buffer.alloc`. + +## 0.8.3 - 2019-05-15 + +### Fixed +- Use basic character set for code. + +## 0.8.2 - 2019-03-18 + +### Fixed +- Fix tag calculation when continuing an AES-GCM block. + +### Changed +- Switch to eslint. + +## 0.8.1 - 2019-02-23 + +### Fixed +- Fix off-by-1 bug with kem random generation. + +## 0.8.0 - 2019-01-31 + +### Fixed +- Handle creation of certificates with `notBefore` and `notAfter` dates less + than Jan 1, 1950 or greater than or equal to Jan 1, 2050. + +### Added +- Add OID 2.5.4.13 "description". +- Add OID 2.16.840.1.113730.1.13 "nsComment". + - Also handle extension when creating a certificate. +- `pki.verifyCertificateChain`: + - Add `validityCheckDate` option to allow checking the certificate validity + period against an arbitrary `Date` or `null` for no check at all. The + current date is used by default. +- `tls.createConnection`: + - Add `verifyOptions` option that passes through to + `pki.verifyCertificateChain`. Can be used for the above `validityCheckDate` + option. + +### Changed +- Support WebCrypto API in web workers. +- `rsa.generateKeyPair`: + - Use `crypto.generateKeyPair`/`crypto.generateKeyPairSync` on Node.js if + available (10.12.0+) and not in pure JS mode. + - Use JS fallback in `rsa.generateKeyPair` if `prng` option specified since + this isn't supported by current native APIs. + - Only run key generation comparison tests if keys will be deterministic. +- PhantomJS is deprecated, now using Headless Chrome with Karma. +- **Note**: Using Headless Chrome vs PhantomJS may cause newer JS features to + slip into releases without proper support for older runtimes and browsers. + Please report such issues and they will be addressed. +- `pki.verifyCertificateChain`: + - Signature changed to `(caStore, chain, options)`. Older `(caStore, chain, + verify)` signature is still supported. New style is to to pass in a + `verify` option. + +## 0.7.6 - 2018-08-14 + +### Added +- Test on Node.js 10.x. +- Support for PKCS#7 detached signatures. + +### Changed +- Improve webpack/browser detection. + +## 0.7.5 - 2018-03-30 + +### Fixed +- Remove use of `const`. + +## 0.7.4 - 2018-03-07 + +### Fixed +- Potential regex denial of service in form.js. + +### Added +- Support for ED25519. +- Support for baseN/base58. + +## 0.7.3 - 2018-03-05 + +- Re-publish with npm 5.6.0 due to file timestamp issues. + +## 0.7.2 - 2018-02-27 + +### Added +- Support verification of SHA-384 certificates. +- `1.2.840.10040.4.3'`/`dsa-with-sha1` OID. + +### Fixed +- Support importing PKCS#7 data with no certificates. RFC 2315 sec 9.1 states + certificates are optional. +- `asn1.equals` loop bug. +- Fortuna implementation bugs. + +## 0.7.1 - 2017-03-27 + +### Fixed + +- Fix digestLength for hashes based on SHA-512. + +## 0.7.0 - 2017-02-07 + +### Fixed + +- Fix test looping bugs so all tests are run. +- Improved ASN.1 parsing. Many failure cases eliminated. More sanity checks. + Better behavior in default mode of parsing BIT STRINGs. Better handling of + parsed BIT STRINGs in `toDer()`. More tests. +- Improve X.509 BIT STRING handling by using new capture modes. + +### Changed + +- Major refactor to use CommonJS plus a browser build system. +- Updated tests, examples, docs. +- Updated dependencies. +- Updated flash build system. +- Improve OID mapping code. +- Change test servers from Python to JavaScript. +- Improve PhantomJS support. +- Move Bower/bundle support to + [forge-dist](https://github.com/digitalbazaar/forge-dist). +- **BREAKING**: Require minimal digest algorithm dependencies from individual + modules. +- Enforce currently supported bit param values for byte buffer access. May be + **BREAKING** for code that depended on unspecified and/or incorrect behavior. +- Improve `asn1.prettyPrint()` BIT STRING display. + +### Added + +- webpack bundler support via `npm run build`: + - Builds `.js`, `.min.js`, and basic sourcemaps. + - Basic build: `forge.js`. + - Build with extra utils and networking support: `forge.all.js`. + - Build WebWorker support: `prime.worker.js`. +- Browserify support in package.json. +- Karma browser testing. +- `forge.options` field. +- `forge.options.usePureJavaScript` flag. +- `forge.util.isNodejs` flag (used to select "native" APIs). +- Run PhantomJS tests in Travis-CI. +- Add "Donations" section to README. +- Add IRC to "Contact" section of README. +- Add "Security Considerations" section to README. +- Add pbkdf2 usePureJavaScript test. +- Add rsa.generateKeyPair async and usePureJavaScript tests. +- Add .editorconfig support. +- Add `md.all.js` which includes all digest algorithms. +- Add asn1 `equals()` and `copy()`. +- Add asn1 `validate()` capture options for BIT STRING contents and value. + +### Removed + +- **BREAKING**: Can no longer call `forge({...})` to create new instances. +- Remove a large amount of old cruft. + +### Migration from 0.6.x to 0.7.x + +- (all) If you used the feature to create a new forge instance with new + configuration options you will need to rework your code. That ability has + been removed due to implementation complexity. The main rare use was to set + the option to use pure JavaScript. That is now available as a library global + flag `forge.options.usePureJavaScript`. +- (npm,bower) If you used the default main file there is little to nothing to + change. +- (npm) If you accessed a sub-resource like `forge/js/pki` you should either + switch to just using the main `forge` and access `forge.pki` or update to + `forge/lib/pki`. +- (bower) If you used a sub-resource like `forge/js/pki` you should switch to + just using `forge` and access `forge.pki`. The bower release bundles + everything in one minified file. +- (bower) A configured workerScript like + `/bower_components/forge/js/prime.worker.js` will need to change to + `/bower_components/forge/dist/prime.worker.min.js`. +- (all) If you used the networking support or flash socket support, you will + need to use a custom build and/or adjust where files are loaded from. This + functionality is not included in the bower distribution by default and is + also now in a different directory. +- (all) The library should now directly support building custom bundles with + webpack, browserify, or similar. +- (all) If building a custom bundle ensure the correct dependencies are + included. In particular, note there is now a `md.all.js` file to include all + digest algorithms. Individual files limit what they include by default to + allow smaller custom builds. For instance, `pbdkf2.js` has a `sha1` default + but does not include any algorithm files by default. This allows the + possibility to include only `sha256` without the overhead of `sha1` and + `sha512`. + +### Notes + +- This major update requires updating the version to 0.7.x. The existing + work-in-progress "0.7.x" branch will be painfully rebased on top of this new + 0.7.x and moved forward to 0.8.x or later as needed. +- 0.7.x is a start of simplifying forge based on common issues and what has + appeared to be the most common usage. Please file issues with feedback if the + changes are problematic for your use cases. + +## 0.6.x - 2016 and earlier + +- See Git commit log or https://github.com/digitalbazaar/forge. diff --git a/node_modules/node-forge/LICENSE b/node_modules/node-forge/LICENSE new file mode 100644 index 0000000..2b48a95 --- /dev/null +++ b/node_modules/node-forge/LICENSE @@ -0,0 +1,331 @@ +You may use the Forge project under the terms of either the BSD License or the +GNU General Public License (GPL) Version 2. + +The BSD License is recommended for most projects. It is simple and easy to +understand and it places almost no restrictions on what you can do with the +Forge project. + +If the GPL suits your project better you are also free to use Forge under +that license. + +You don't have to do anything special to choose one license or the other and +you don't have to notify anyone which license you are using. You are free to +use this project in commercial projects as long as the copyright header is +left intact. + +If you are a commercial entity and use this set of libraries in your +commercial software then reasonable payment to Digital Bazaar, if you can +afford it, is not required but is expected and would be appreciated. If this +library saves you time, then it's saving you money. The cost of developing +the Forge software was on the order of several hundred hours and tens of +thousands of dollars. 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Benchmarks against other popular JavaScript cryptography +libraries can be found here: + +* http://dominictarr.github.io/crypto-bench/ +* http://cryptojs.altervista.org/test/simulate-threading-speed_test.html + +Documentation +------------- + +* [Introduction](#introduction) +* [Performance](#performance) +* [Installation](#installation) +* [Testing](#testing) +* [Contributing](#contributing) + +### API + +* [Options](#options) + +### Transports + +* [TLS](#tls) +* [HTTP](#http) +* [SSH](#ssh) +* [XHR](#xhr) +* [Sockets](#socket) + +### Ciphers + +* [CIPHER](#cipher) +* [AES](#aes) +* [DES](#des) +* [RC2](#rc2) + +### PKI + +* [ED25519](#ed25519) +* [RSA](#rsa) +* [RSA-KEM](#rsakem) +* [X.509](#x509) +* [PKCS#5](#pkcs5) +* [PKCS#7](#pkcs7) +* [PKCS#8](#pkcs8) +* [PKCS#10](#pkcs10) +* [PKCS#12](#pkcs12) +* [ASN.1](#asn) + +### Message Digests + +* [SHA1](#sha1) +* [SHA256](#sha256) +* [SHA384](#sha384) +* [SHA512](#sha512) +* [MD5](#md5) +* [HMAC](#hmac) + +### Utilities + +* [Prime](#prime) +* [PRNG](#prng) +* [Tasks](#task) +* [Utilities](#util) +* [Logging](#log) +* [Flash Networking Support](#flash) + +### Other + +* [Security Considerations](#security-considerations) +* [Library Background](#library-background) +* [Contact](#contact) +* [Donations](#donations) + +--------------------------------------- + +Installation +------------ + +**Note**: Please see the [Security Considerations](#security-considerations) +section before using packaging systems and pre-built files. + +Forge uses a [CommonJS][] module structure with a build process for browser +bundles. The older [0.6.x][] branch with standalone files is available but will +not be regularly updated. + +### Node.js + +If you want to use forge with [Node.js][], it is available through `npm`: + +https://www.npmjs.com/package/node-forge + +Installation: + + npm install node-forge + +You can then use forge as a regular module: + +```js +var forge = require('node-forge'); +``` + +The npm package includes pre-built `forge.min.js`, `forge.all.min.js`, and +`prime.worker.min.js` using the [UMD][] format. + +### jsDelivr CDN + +To use it via [jsDelivr](https://www.jsdelivr.com/package/npm/node-forge) include this in your html: + +```html + +``` + +### unpkg CDN + +To use it via [unpkg](https://unpkg.com/#/) include this in your html: + +```html + +``` + +### Development Requirements + +The core JavaScript has the following requirements to build and test: + +* Building a browser bundle: + * Node.js + * npm +* Testing + * Node.js + * npm + * Chrome, Firefox, Safari (optional) + +Some special networking features can optionally use a Flash component. See the +[Flash README](./flash/README.md) for details. + +### Building for a web browser + +To create single file bundles for use with browsers run the following: + + npm install + npm run build + +This will create single non-minimized and minimized files that can be +included in the browser: + + dist/forge.js + dist/forge.min.js + +A bundle that adds some utilities and networking support is also available: + + dist/forge.all.js + dist/forge.all.min.js + +Include the file via: + +```html + +``` +or +```html + +``` + +The above bundles will synchronously create a global 'forge' object. + +**Note**: These bundles will not include any WebWorker scripts (eg: +`dist/prime.worker.js`), so these will need to be accessible from the browser +if any WebWorkers are used. + +### Building a custom browser bundle + +The build process uses [webpack][] and the [config](./webpack.config.js) file +can be modified to generate a file or files that only contain the parts of +forge you need. + +[Browserify][] override support is also present in `package.json`. + +Testing +------- + +### Prepare to run tests + + npm install + +### Running automated tests with Node.js + +Forge natively runs in a [Node.js][] environment: + + npm test + +### Running automated tests with Headless Chrome + +Automated testing is done via [Karma][]. By default it will run the tests with +Headless Chrome. + + npm run test-karma + +Is 'mocha' reporter output too verbose? Other reporters are available. Try +'dots', 'progress', or 'tap'. + + npm run test-karma -- --reporters progress + +By default [webpack][] is used. [Browserify][] can also be used. + + BUNDLER=browserify npm run test-karma + +### Running automated tests with one or more browsers + +You can also specify one or more browsers to use. + + npm run test-karma -- --browsers Chrome,Firefox,Safari,ChromeHeadless + +The reporter option and `BUNDLER` environment variable can also be used. + +### Running manual tests in a browser + +Testing in a browser uses [webpack][] to combine forge and all tests and then +loading the result in a browser. A simple web server is provided that will +output the HTTP or HTTPS URLs to load. It also will start a simple Flash Policy +Server. Unit tests and older legacy tests are provided. Custom ports can be +used by running `node tests/server.js` manually. + +To run the unit tests in a browser a special forge build is required: + + npm run test-build + +To run legacy browser based tests the main forge build is required: + + npm run build + +The tests are run with a custom server that prints out the URLs to use: + + npm run test-server + +### Running other tests + +There are some other random tests and benchmarks available in the tests +directory. + +### Coverage testing + +To perform coverage testing of the unit tests, run the following. The results +will be put in the `coverage/` directory. Note that coverage testing can slow +down some tests considerably. + + npm install + npm run coverage + +Contributing +------------ + +Any contributions (eg: PRs) that are accepted will be brought under the same +license used by the rest of the Forge project. This license allows Forge to +be used under the terms of either the BSD License or the GNU General Public +License (GPL) Version 2. + +See: [LICENSE](https://github.com/digitalbazaar/forge/blob/cbebca3780658703d925b61b2caffb1d263a6c1d/LICENSE) + +If a contribution contains 3rd party source code with its own license, it +may retain it, so long as that license is compatible with the Forge license. + +API +--- + + + +### Options + +If at any time you wish to disable the use of native code, where available, +for particular forge features like its secure random number generator, you +may set the ```forge.options.usePureJavaScript``` flag to ```true```. It is +not recommended that you set this flag as native code is typically more +performant and may have stronger security properties. It may be useful to +set this flag to test certain features that you plan to run in environments +that are different from your testing environment. + +To disable native code when including forge in the browser: + +```js +// run this *after* including the forge script +forge.options.usePureJavaScript = true; +``` + +To disable native code when using Node.js: + +```js +var forge = require('node-forge'); +forge.options.usePureJavaScript = true; +``` + +Transports +---------- + + + +### TLS + +Provides a native javascript client and server-side [TLS][] implementation. + +__Examples__ + +```js +// create TLS client +var client = forge.tls.createConnection({ + server: false, + caStore: /* Array of PEM-formatted certs or a CA store object */, + sessionCache: {}, + // supported cipher suites in order of preference + cipherSuites: [ + forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA, + forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA], + virtualHost: 'example.com', + verify: function(connection, verified, depth, certs) { + if(depth === 0) { + var cn = certs[0].subject.getField('CN').value; + if(cn !== 'example.com') { + verified = { + alert: forge.tls.Alert.Description.bad_certificate, + message: 'Certificate common name does not match hostname.' + }; + } + } + return verified; + }, + connected: function(connection) { + console.log('connected'); + // send message to server + connection.prepare(forge.util.encodeUtf8('Hi server!')); + /* NOTE: experimental, start heartbeat retransmission timer + myHeartbeatTimer = setInterval(function() { + connection.prepareHeartbeatRequest(forge.util.createBuffer('1234')); + }, 5*60*1000);*/ + }, + /* provide a client-side cert if you want + getCertificate: function(connection, hint) { + return myClientCertificate; + }, + /* the private key for the client-side cert if provided */ + getPrivateKey: function(connection, cert) { + return myClientPrivateKey; + }, + tlsDataReady: function(connection) { + // TLS data (encrypted) is ready to be sent to the server + sendToServerSomehow(connection.tlsData.getBytes()); + // if you were communicating with the server below, you'd do: + // server.process(connection.tlsData.getBytes()); + }, + dataReady: function(connection) { + // clear data from the server is ready + console.log('the server sent: ' + + forge.util.decodeUtf8(connection.data.getBytes())); + // close connection + connection.close(); + }, + /* NOTE: experimental + heartbeatReceived: function(connection, payload) { + // restart retransmission timer, look at payload + clearInterval(myHeartbeatTimer); + myHeartbeatTimer = setInterval(function() { + connection.prepareHeartbeatRequest(forge.util.createBuffer('1234')); + }, 5*60*1000); + payload.getBytes(); + },*/ + closed: function(connection) { + console.log('disconnected'); + }, + error: function(connection, error) { + console.log('uh oh', error); + } +}); + +// start the handshake process +client.handshake(); + +// when encrypted TLS data is received from the server, process it +client.process(encryptedBytesFromServer); + +// create TLS server +var server = forge.tls.createConnection({ + server: true, + caStore: /* Array of PEM-formatted certs or a CA store object */, + sessionCache: {}, + // supported cipher suites in order of preference + cipherSuites: [ + forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA, + forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA], + // require a client-side certificate if you want + verifyClient: true, + verify: function(connection, verified, depth, certs) { + if(depth === 0) { + var cn = certs[0].subject.getField('CN').value; + if(cn !== 'the-client') { + verified = { + alert: forge.tls.Alert.Description.bad_certificate, + message: 'Certificate common name does not match expected client.' + }; + } + } + return verified; + }, + connected: function(connection) { + console.log('connected'); + // send message to client + connection.prepare(forge.util.encodeUtf8('Hi client!')); + /* NOTE: experimental, start heartbeat retransmission timer + myHeartbeatTimer = setInterval(function() { + connection.prepareHeartbeatRequest(forge.util.createBuffer('1234')); + }, 5*60*1000);*/ + }, + getCertificate: function(connection, hint) { + return myServerCertificate; + }, + getPrivateKey: function(connection, cert) { + return myServerPrivateKey; + }, + tlsDataReady: function(connection) { + // TLS data (encrypted) is ready to be sent to the client + sendToClientSomehow(connection.tlsData.getBytes()); + // if you were communicating with the client above you'd do: + // client.process(connection.tlsData.getBytes()); + }, + dataReady: function(connection) { + // clear data from the client is ready + console.log('the client sent: ' + + forge.util.decodeUtf8(connection.data.getBytes())); + // close connection + connection.close(); + }, + /* NOTE: experimental + heartbeatReceived: function(connection, payload) { + // restart retransmission timer, look at payload + clearInterval(myHeartbeatTimer); + myHeartbeatTimer = setInterval(function() { + connection.prepareHeartbeatRequest(forge.util.createBuffer('1234')); + }, 5*60*1000); + payload.getBytes(); + },*/ + closed: function(connection) { + console.log('disconnected'); + }, + error: function(connection, error) { + console.log('uh oh', error); + } +}); + +// when encrypted TLS data is received from the client, process it +server.process(encryptedBytesFromClient); +``` + +Connect to a TLS server using node's net.Socket: + +```js +var socket = new net.Socket(); + +var client = forge.tls.createConnection({ + server: false, + verify: function(connection, verified, depth, certs) { + // skip verification for testing + console.log('[tls] server certificate verified'); + return true; + }, + connected: function(connection) { + console.log('[tls] connected'); + // prepare some data to send (note that the string is interpreted as + // 'binary' encoded, which works for HTTP which only uses ASCII, use + // forge.util.encodeUtf8(str) otherwise + client.prepare('GET / HTTP/1.0\r\n\r\n'); + }, + tlsDataReady: function(connection) { + // encrypted data is ready to be sent to the server + var data = connection.tlsData.getBytes(); + socket.write(data, 'binary'); // encoding should be 'binary' + }, + dataReady: function(connection) { + // clear data from the server is ready + var data = connection.data.getBytes(); + console.log('[tls] data received from the server: ' + data); + }, + closed: function() { + console.log('[tls] disconnected'); + }, + error: function(connection, error) { + console.log('[tls] error', error); + } +}); + +socket.on('connect', function() { + console.log('[socket] connected'); + client.handshake(); +}); +socket.on('data', function(data) { + client.process(data.toString('binary')); // encoding should be 'binary' +}); +socket.on('end', function() { + console.log('[socket] disconnected'); +}); + +// connect to google.com +socket.connect(443, 'google.com'); + +// or connect to gmail's imap server (but don't send the HTTP header above) +//socket.connect(993, 'imap.gmail.com'); +``` + + + +### HTTP + +Provides a native [JavaScript][] mini-implementation of an http client that +uses pooled sockets. + +__Examples__ + +```js +// create an HTTP GET request +var request = forge.http.createRequest({method: 'GET', path: url.path}); + +// send the request somewhere +sendSomehow(request.toString()); + +// receive response +var buffer = forge.util.createBuffer(); +var response = forge.http.createResponse(); +var someAsyncDataHandler = function(bytes) { + if(!response.bodyReceived) { + buffer.putBytes(bytes); + if(!response.headerReceived) { + if(response.readHeader(buffer)) { + console.log('HTTP response header: ' + response.toString()); + } + } + if(response.headerReceived && !response.bodyReceived) { + if(response.readBody(buffer)) { + console.log('HTTP response body: ' + response.body); + } + } + } +}; +``` + + + +### SSH + +Provides some SSH utility functions. + +__Examples__ + +```js +// encodes (and optionally encrypts) a private RSA key as a Putty PPK file +forge.ssh.privateKeyToPutty(privateKey, passphrase, comment); + +// encodes a public RSA key as an OpenSSH file +forge.ssh.publicKeyToOpenSSH(key, comment); + +// encodes a private RSA key as an OpenSSH file +forge.ssh.privateKeyToOpenSSH(privateKey, passphrase); + +// gets the SSH public key fingerprint in a byte buffer +forge.ssh.getPublicKeyFingerprint(key); + +// gets a hex-encoded, colon-delimited SSH public key fingerprint +forge.ssh.getPublicKeyFingerprint(key, {encoding: 'hex', delimiter: ':'}); +``` + + + +### XHR + +Provides an XmlHttpRequest implementation using forge.http as a backend. + +__Examples__ + +```js +// TODO +``` + + + +### Sockets + +Provides an interface to create and use raw sockets provided via Flash. + +__Examples__ + +```js +// TODO +``` + +Ciphers +------- + + + +### CIPHER + +Provides a basic API for block encryption and decryption. There is built-in +support for the ciphers: [AES][], [3DES][], and [DES][], and for the modes +of operation: [ECB][], [CBC][], [CFB][], [OFB][], [CTR][], and [GCM][]. + +These algorithms are currently supported: + +* AES-ECB +* AES-CBC +* AES-CFB +* AES-OFB +* AES-CTR +* AES-GCM +* 3DES-ECB +* 3DES-CBC +* DES-ECB +* DES-CBC + +When using an [AES][] algorithm, the key size will determine whether +AES-128, AES-192, or AES-256 is used (all are supported). When a [DES][] +algorithm is used, the key size will determine whether [3DES][] or regular +[DES][] is used. Use a [3DES][] algorithm to enforce Triple-DES. + +__Examples__ + +```js +// generate a random key and IV +// Note: a key size of 16 bytes will use AES-128, 24 => AES-192, 32 => AES-256 +var key = forge.random.getBytesSync(16); +var iv = forge.random.getBytesSync(16); + +/* alternatively, generate a password-based 16-byte key +var salt = forge.random.getBytesSync(128); +var key = forge.pkcs5.pbkdf2('password', salt, numIterations, 16); +*/ + +// encrypt some bytes using CBC mode +// (other modes include: ECB, CFB, OFB, CTR, and GCM) +// Note: CBC and ECB modes use PKCS#7 padding as default +var cipher = forge.cipher.createCipher('AES-CBC', key); +cipher.start({iv: iv}); +cipher.update(forge.util.createBuffer(someBytes)); +cipher.finish(); +var encrypted = cipher.output; +// outputs encrypted hex +console.log(encrypted.toHex()); + +// decrypt some bytes using CBC mode +// (other modes include: CFB, OFB, CTR, and GCM) +var decipher = forge.cipher.createDecipher('AES-CBC', key); +decipher.start({iv: iv}); +decipher.update(encrypted); +var result = decipher.finish(); // check 'result' for true/false +// outputs decrypted hex +console.log(decipher.output.toHex()); + +// decrypt bytes using CBC mode and streaming +// Performance can suffer for large multi-MB inputs due to buffer +// manipulations. Stream processing in chunks can offer significant +// improvement. CPU intensive update() calls could also be performed with +// setImmediate/setTimeout to avoid blocking the main browser UI thread (not +// shown here). Optimal block size depends on the JavaScript VM and other +// factors. Encryption can use a simple technique for increased performance. +var encryptedBytes = encrypted.bytes(); +var decipher = forge.cipher.createDecipher('AES-CBC', key); +decipher.start({iv: iv}); +var length = encryptedBytes.length; +var chunkSize = 1024 * 64; +var index = 0; +var decrypted = ''; +do { + decrypted += decipher.output.getBytes(); + var buf = forge.util.createBuffer(encryptedBytes.substr(index, chunkSize)); + decipher.update(buf); + index += chunkSize; +} while(index < length); +var result = decipher.finish(); +assert(result); +decrypted += decipher.output.getBytes(); +console.log(forge.util.bytesToHex(decrypted)); + +// encrypt some bytes using GCM mode +var cipher = forge.cipher.createCipher('AES-GCM', key); +cipher.start({ + iv: iv, // should be a 12-byte binary-encoded string or byte buffer + additionalData: 'binary-encoded string', // optional + tagLength: 128 // optional, defaults to 128 bits +}); +cipher.update(forge.util.createBuffer(someBytes)); +cipher.finish(); +var encrypted = cipher.output; +var tag = cipher.mode.tag; +// outputs encrypted hex +console.log(encrypted.toHex()); +// outputs authentication tag +console.log(tag.toHex()); + +// decrypt some bytes using GCM mode +var decipher = forge.cipher.createDecipher('AES-GCM', key); +decipher.start({ + iv: iv, + additionalData: 'binary-encoded string', // optional + tagLength: 128, // optional, defaults to 128 bits + tag: tag // authentication tag from encryption +}); +decipher.update(encrypted); +var pass = decipher.finish(); +// pass is false if there was a failure (eg: authentication tag didn't match) +if(pass) { + // outputs decrypted hex + console.log(decipher.output.toHex()); +} +``` + +Using forge in Node.js to match openssl's "enc" command line tool (**Note**: OpenSSL "enc" uses a non-standard file format with a custom key derivation function and a fixed iteration count of 1, which some consider less secure than alternatives such as [OpenPGP](https://tools.ietf.org/html/rfc4880)/[GnuPG](https://www.gnupg.org/)): + +```js +var forge = require('node-forge'); +var fs = require('fs'); + +// openssl enc -des3 -in input.txt -out input.enc +function encrypt(password) { + var input = fs.readFileSync('input.txt', {encoding: 'binary'}); + + // 3DES key and IV sizes + var keySize = 24; + var ivSize = 8; + + // get derived bytes + // Notes: + // 1. If using an alternative hash (eg: "-md sha1") pass + // "forge.md.sha1.create()" as the final parameter. + // 2. If using "-nosalt", set salt to null. + var salt = forge.random.getBytesSync(8); + // var md = forge.md.sha1.create(); // "-md sha1" + var derivedBytes = forge.pbe.opensslDeriveBytes( + password, salt, keySize + ivSize/*, md*/); + var buffer = forge.util.createBuffer(derivedBytes); + var key = buffer.getBytes(keySize); + var iv = buffer.getBytes(ivSize); + + var cipher = forge.cipher.createCipher('3DES-CBC', key); + cipher.start({iv: iv}); + cipher.update(forge.util.createBuffer(input, 'binary')); + cipher.finish(); + + var output = forge.util.createBuffer(); + + // if using a salt, prepend this to the output: + if(salt !== null) { + output.putBytes('Salted__'); // (add to match openssl tool output) + output.putBytes(salt); + } + output.putBuffer(cipher.output); + + fs.writeFileSync('input.enc', output.getBytes(), {encoding: 'binary'}); +} + +// openssl enc -d -des3 -in input.enc -out input.dec.txt +function decrypt(password) { + var input = fs.readFileSync('input.enc', {encoding: 'binary'}); + + // parse salt from input + input = forge.util.createBuffer(input, 'binary'); + // skip "Salted__" (if known to be present) + input.getBytes('Salted__'.length); + // read 8-byte salt + var salt = input.getBytes(8); + + // Note: if using "-nosalt", skip above parsing and use + // var salt = null; + + // 3DES key and IV sizes + var keySize = 24; + var ivSize = 8; + + var derivedBytes = forge.pbe.opensslDeriveBytes( + password, salt, keySize + ivSize); + var buffer = forge.util.createBuffer(derivedBytes); + var key = buffer.getBytes(keySize); + var iv = buffer.getBytes(ivSize); + + var decipher = forge.cipher.createDecipher('3DES-CBC', key); + decipher.start({iv: iv}); + decipher.update(input); + var result = decipher.finish(); // check 'result' for true/false + + fs.writeFileSync( + 'input.dec.txt', decipher.output.getBytes(), {encoding: 'binary'}); +} +``` + + + +### AES + +Provides [AES][] encryption and decryption in [CBC][], [CFB][], [OFB][], +[CTR][], and [GCM][] modes. See [CIPHER](#cipher) for examples. + + + +### DES + +Provides [3DES][] and [DES][] encryption and decryption in [ECB][] and +[CBC][] modes. See [CIPHER](#cipher) for examples. + + + +### RC2 + +__Examples__ + +```js +// generate a random key and IV +var key = forge.random.getBytesSync(16); +var iv = forge.random.getBytesSync(8); + +// encrypt some bytes +var cipher = forge.rc2.createEncryptionCipher(key); +cipher.start(iv); +cipher.update(forge.util.createBuffer(someBytes)); +cipher.finish(); +var encrypted = cipher.output; +// outputs encrypted hex +console.log(encrypted.toHex()); + +// decrypt some bytes +var cipher = forge.rc2.createDecryptionCipher(key); +cipher.start(iv); +cipher.update(encrypted); +cipher.finish(); +// outputs decrypted hex +console.log(cipher.output.toHex()); +``` + +PKI +--- + +Provides [X.509][] certificate support, ED25519 key generation and +signing/verifying, and RSA public and private key encoding, decoding, +encryption/decryption, and signing/verifying. + + + +### ED25519 + +Special thanks to [TweetNaCl.js][] for providing the bulk of the implementation. + +__Examples__ + +```js +var ed25519 = forge.pki.ed25519; + +// generate a random ED25519 keypair +var keypair = ed25519.generateKeyPair(); +// `keypair.publicKey` is a node.js Buffer or Uint8Array +// `keypair.privateKey` is a node.js Buffer or Uint8Array + +// generate a random ED25519 keypair based on a random 32-byte seed +var seed = forge.random.getBytesSync(32); +var keypair = ed25519.generateKeyPair({seed: seed}); + +// generate a random ED25519 keypair based on a "password" 32-byte seed +var password = 'Mai9ohgh6ahxee0jutheew0pungoozil'; +var seed = new forge.util.ByteBuffer(password, 'utf8'); +var keypair = ed25519.generateKeyPair({seed: seed}); + +// sign a UTF-8 message +var signature = ED25519.sign({ + message: 'test', + // also accepts `binary` if you want to pass a binary string + encoding: 'utf8', + // node.js Buffer, Uint8Array, forge ByteBuffer, binary string + privateKey: privateKey +}); +// `signature` is a node.js Buffer or Uint8Array + +// sign a message passed as a buffer +var signature = ED25519.sign({ + // also accepts a forge ByteBuffer or Uint8Array + message: Buffer.from('test', 'utf8'), + privateKey: privateKey +}); + +// sign a message digest (shorter "message" == better performance) +var md = forge.md.sha256.create(); +md.update('test', 'utf8'); +var signature = ED25519.sign({ + md: md, + privateKey: privateKey +}); + +// verify a signature on a UTF-8 message +var verified = ED25519.verify({ + message: 'test', + encoding: 'utf8', + // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string + signature: signature, + // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string + publicKey: publicKey +}); +// `verified` is true/false + +// sign a message passed as a buffer +var verified = ED25519.verify({ + // also accepts a forge ByteBuffer or Uint8Array + message: Buffer.from('test', 'utf8'), + // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string + signature: signature, + // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string + publicKey: publicKey +}); + +// verify a signature on a message digest +var md = forge.md.sha256.create(); +md.update('test', 'utf8'); +var verified = ED25519.verify({ + md: md, + // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string + signature: signature, + // node.js Buffer, Uint8Array, forge ByteBuffer, or binary string + publicKey: publicKey +}); +``` + + + +### RSA + +__Examples__ + +```js +var rsa = forge.pki.rsa; + +// generate an RSA key pair synchronously +// *NOT RECOMMENDED*: Can be significantly slower than async and may block +// JavaScript execution. Will use native Node.js 10.12.0+ API if possible. +var keypair = rsa.generateKeyPair({bits: 2048, e: 0x10001}); + +// generate an RSA key pair asynchronously (uses web workers if available) +// use workers: -1 to run a fast core estimator to optimize # of workers +// *RECOMMENDED*: Can be significantly faster than sync. Will use native +// Node.js 10.12.0+ or WebCrypto API if possible. +rsa.generateKeyPair({bits: 2048, workers: 2}, function(err, keypair) { + // keypair.privateKey, keypair.publicKey +}); + +// generate an RSA key pair in steps that attempt to run for a specified period +// of time on the main JS thread +var state = rsa.createKeyPairGenerationState(2048, 0x10001); +var step = function() { + // run for 100 ms + if(!rsa.stepKeyPairGenerationState(state, 100)) { + setTimeout(step, 1); + } + else { + // done, turn off progress indicator, use state.keys + } +}; +// turn on progress indicator, schedule generation to run +setTimeout(step); + +// sign data with a private key and output DigestInfo DER-encoded bytes +// (defaults to RSASSA PKCS#1 v1.5) +var md = forge.md.sha1.create(); +md.update('sign this', 'utf8'); +var signature = privateKey.sign(md); + +// verify data with a public key +// (defaults to RSASSA PKCS#1 v1.5) +var verified = publicKey.verify(md.digest().bytes(), signature); + +// sign data using RSASSA-PSS where PSS uses a SHA-1 hash, a SHA-1 based +// masking function MGF1, and a 20 byte salt +var md = forge.md.sha1.create(); +md.update('sign this', 'utf8'); +var pss = forge.pss.create({ + md: forge.md.sha1.create(), + mgf: forge.mgf.mgf1.create(forge.md.sha1.create()), + saltLength: 20 + // optionally pass 'prng' with a custom PRNG implementation + // optionalls pass 'salt' with a forge.util.ByteBuffer w/custom salt +}); +var signature = privateKey.sign(md, pss); + +// verify RSASSA-PSS signature +var pss = forge.pss.create({ + md: forge.md.sha1.create(), + mgf: forge.mgf.mgf1.create(forge.md.sha1.create()), + saltLength: 20 + // optionally pass 'prng' with a custom PRNG implementation +}); +var md = forge.md.sha1.create(); +md.update('sign this', 'utf8'); +publicKey.verify(md.digest().getBytes(), signature, pss); + +// encrypt data with a public key (defaults to RSAES PKCS#1 v1.5) +var encrypted = publicKey.encrypt(bytes); + +// decrypt data with a private key (defaults to RSAES PKCS#1 v1.5) +var decrypted = privateKey.decrypt(encrypted); + +// encrypt data with a public key using RSAES PKCS#1 v1.5 +var encrypted = publicKey.encrypt(bytes, 'RSAES-PKCS1-V1_5'); + +// decrypt data with a private key using RSAES PKCS#1 v1.5 +var decrypted = privateKey.decrypt(encrypted, 'RSAES-PKCS1-V1_5'); + +// encrypt data with a public key using RSAES-OAEP +var encrypted = publicKey.encrypt(bytes, 'RSA-OAEP'); + +// decrypt data with a private key using RSAES-OAEP +var decrypted = privateKey.decrypt(encrypted, 'RSA-OAEP'); + +// encrypt data with a public key using RSAES-OAEP/SHA-256 +var encrypted = publicKey.encrypt(bytes, 'RSA-OAEP', { + md: forge.md.sha256.create() +}); + +// decrypt data with a private key using RSAES-OAEP/SHA-256 +var decrypted = privateKey.decrypt(encrypted, 'RSA-OAEP', { + md: forge.md.sha256.create() +}); + +// encrypt data with a public key using RSAES-OAEP/SHA-256/MGF1-SHA-1 +// compatible with Java's RSA/ECB/OAEPWithSHA-256AndMGF1Padding +var encrypted = publicKey.encrypt(bytes, 'RSA-OAEP', { + md: forge.md.sha256.create(), + mgf1: { + md: forge.md.sha1.create() + } +}); + +// decrypt data with a private key using RSAES-OAEP/SHA-256/MGF1-SHA-1 +// compatible with Java's RSA/ECB/OAEPWithSHA-256AndMGF1Padding +var decrypted = privateKey.decrypt(encrypted, 'RSA-OAEP', { + md: forge.md.sha256.create(), + mgf1: { + md: forge.md.sha1.create() + } +}); + +``` + + + +### RSA-KEM + +__Examples__ + +```js +// generate an RSA key pair asynchronously (uses web workers if available) +// use workers: -1 to run a fast core estimator to optimize # of workers +forge.rsa.generateKeyPair({bits: 2048, workers: -1}, function(err, keypair) { + // keypair.privateKey, keypair.publicKey +}); + +// generate and encapsulate a 16-byte secret key +var kdf1 = new forge.kem.kdf1(forge.md.sha1.create()); +var kem = forge.kem.rsa.create(kdf1); +var result = kem.encrypt(keypair.publicKey, 16); +// result has 'encapsulation' and 'key' + +// encrypt some bytes +var iv = forge.random.getBytesSync(12); +var someBytes = 'hello world!'; +var cipher = forge.cipher.createCipher('AES-GCM', result.key); +cipher.start({iv: iv}); +cipher.update(forge.util.createBuffer(someBytes)); +cipher.finish(); +var encrypted = cipher.output.getBytes(); +var tag = cipher.mode.tag.getBytes(); + +// send 'encrypted', 'iv', 'tag', and result.encapsulation to recipient + +// decrypt encapsulated 16-byte secret key +var kdf1 = new forge.kem.kdf1(forge.md.sha1.create()); +var kem = forge.kem.rsa.create(kdf1); +var key = kem.decrypt(keypair.privateKey, result.encapsulation, 16); + +// decrypt some bytes +var decipher = forge.cipher.createDecipher('AES-GCM', key); +decipher.start({iv: iv, tag: tag}); +decipher.update(forge.util.createBuffer(encrypted)); +var pass = decipher.finish(); +// pass is false if there was a failure (eg: authentication tag didn't match) +if(pass) { + // outputs 'hello world!' + console.log(decipher.output.getBytes()); +} + +``` + + + +### X.509 + +__Examples__ + +```js +var pki = forge.pki; + +// convert a PEM-formatted public key to a Forge public key +var publicKey = pki.publicKeyFromPem(pem); + +// convert a Forge public key to PEM-format +var pem = pki.publicKeyToPem(publicKey); + +// convert an ASN.1 SubjectPublicKeyInfo to a Forge public key +var publicKey = pki.publicKeyFromAsn1(subjectPublicKeyInfo); + +// convert a Forge public key to an ASN.1 SubjectPublicKeyInfo +var subjectPublicKeyInfo = pki.publicKeyToAsn1(publicKey); + +// gets a SHA-1 RSAPublicKey fingerprint a byte buffer +pki.getPublicKeyFingerprint(key); + +// gets a SHA-1 SubjectPublicKeyInfo fingerprint a byte buffer +pki.getPublicKeyFingerprint(key, {type: 'SubjectPublicKeyInfo'}); + +// gets a hex-encoded, colon-delimited SHA-1 RSAPublicKey public key fingerprint +pki.getPublicKeyFingerprint(key, {encoding: 'hex', delimiter: ':'}); + +// gets a hex-encoded, colon-delimited SHA-1 SubjectPublicKeyInfo public key fingerprint +pki.getPublicKeyFingerprint(key, { + type: 'SubjectPublicKeyInfo', + encoding: 'hex', + delimiter: ':' +}); + +// gets a hex-encoded, colon-delimited MD5 RSAPublicKey public key fingerprint +pki.getPublicKeyFingerprint(key, { + md: forge.md.md5.create(), + encoding: 'hex', + delimiter: ':' +}); + +// creates a CA store +var caStore = pki.createCaStore([/* PEM-encoded cert */, ...]); + +// add a certificate to the CA store +caStore.addCertificate(certObjectOrPemString); + +// gets the issuer (its certificate) for the given certificate +var issuerCert = caStore.getIssuer(subjectCert); + +// verifies a certificate chain against a CA store +pki.verifyCertificateChain(caStore, chain, customVerifyCallback); + +// signs a certificate using the given private key +cert.sign(privateKey); + +// signs a certificate using SHA-256 instead of SHA-1 +cert.sign(privateKey, forge.md.sha256.create()); + +// verifies an issued certificate using the certificates public key +var verified = issuer.verify(issued); + +// generate a keypair and create an X.509v3 certificate +var keys = pki.rsa.generateKeyPair(2048); +var cert = pki.createCertificate(); +cert.publicKey = keys.publicKey; +// alternatively set public key from a csr +//cert.publicKey = csr.publicKey; +// NOTE: serialNumber is the hex encoded value of an ASN.1 INTEGER. +// Conforming CAs should ensure serialNumber is: +// - no more than 20 octets +// - non-negative (prefix a '00' if your value starts with a '1' bit) +cert.serialNumber = '01'; +cert.validity.notBefore = new Date(); +cert.validity.notAfter = new Date(); +cert.validity.notAfter.setFullYear(cert.validity.notBefore.getFullYear() + 1); +var attrs = [{ + name: 'commonName', + value: 'example.org' +}, { + name: 'countryName', + value: 'US' +}, { + shortName: 'ST', + value: 'Virginia' +}, { + name: 'localityName', + value: 'Blacksburg' +}, { + name: 'organizationName', + value: 'Test' +}, { + shortName: 'OU', + value: 'Test' +}]; +cert.setSubject(attrs); +// alternatively set subject from a csr +//cert.setSubject(csr.subject.attributes); +cert.setIssuer(attrs); +cert.setExtensions([{ + name: 'basicConstraints', + cA: true +}, { + name: 'keyUsage', + keyCertSign: true, + digitalSignature: true, + nonRepudiation: true, + keyEncipherment: true, + dataEncipherment: true +}, { + name: 'extKeyUsage', + serverAuth: true, + clientAuth: true, + codeSigning: true, + emailProtection: true, + timeStamping: true +}, { + name: 'nsCertType', + client: true, + server: true, + email: true, + objsign: true, + sslCA: true, + emailCA: true, + objCA: true +}, { + name: 'subjectAltName', + altNames: [{ + type: 6, // URI + value: 'http://example.org/webid#me' + }, { + type: 7, // IP + ip: '127.0.0.1' + }] +}, { + name: 'subjectKeyIdentifier' +}]); +/* alternatively set extensions from a csr +var extensions = csr.getAttribute({name: 'extensionRequest'}).extensions; +// optionally add more extensions +extensions.push.apply(extensions, [{ + name: 'basicConstraints', + cA: true +}, { + name: 'keyUsage', + keyCertSign: true, + digitalSignature: true, + nonRepudiation: true, + keyEncipherment: true, + dataEncipherment: true +}]); +cert.setExtensions(extensions); +*/ +// self-sign certificate +cert.sign(keys.privateKey); + +// convert a Forge certificate to PEM +var pem = pki.certificateToPem(cert); + +// convert a Forge certificate from PEM +var cert = pki.certificateFromPem(pem); + +// convert an ASN.1 X.509x3 object to a Forge certificate +var cert = pki.certificateFromAsn1(obj); + +// convert a Forge certificate to an ASN.1 X.509v3 object +var asn1Cert = pki.certificateToAsn1(cert); +``` + + + +### PKCS#5 + +Provides the password-based key-derivation function from [PKCS#5][]. + +__Examples__ + +```js +// generate a password-based 16-byte key +// note an optional message digest can be passed as the final parameter +var salt = forge.random.getBytesSync(128); +var derivedKey = forge.pkcs5.pbkdf2('password', salt, numIterations, 16); + +// generate key asynchronously +// note an optional message digest can be passed before the callback +forge.pkcs5.pbkdf2('password', salt, numIterations, 16, function(err, derivedKey) { + // do something w/derivedKey +}); +``` + + + +### PKCS#7 + +Provides cryptographically protected messages from [PKCS#7][]. + +__Examples__ + +```js +// convert a message from PEM +var p7 = forge.pkcs7.messageFromPem(pem); +// look at p7.recipients + +// find a recipient by the issuer of a certificate +var recipient = p7.findRecipient(cert); + +// decrypt +p7.decrypt(p7.recipients[0], privateKey); + +// create a p7 enveloped message +var p7 = forge.pkcs7.createEnvelopedData(); + +// add a recipient +var cert = forge.pki.certificateFromPem(certPem); +p7.addRecipient(cert); + +// set content +p7.content = forge.util.createBuffer('Hello'); + +// encrypt +p7.encrypt(); + +// convert message to PEM +var pem = forge.pkcs7.messageToPem(p7); + +// create a degenerate PKCS#7 certificate container +// (CRLs not currently supported, only certificates) +var p7 = forge.pkcs7.createSignedData(); +p7.addCertificate(certOrCertPem1); +p7.addCertificate(certOrCertPem2); +var pem = forge.pkcs7.messageToPem(p7); + +// create PKCS#7 signed data with authenticatedAttributes +// attributes include: PKCS#9 content-type, message-digest, and signing-time +var p7 = forge.pkcs7.createSignedData(); +p7.content = forge.util.createBuffer('Some content to be signed.', 'utf8'); +p7.addCertificate(certOrCertPem); +p7.addSigner({ + key: privateKeyAssociatedWithCert, + certificate: certOrCertPem, + digestAlgorithm: forge.pki.oids.sha256, + authenticatedAttributes: [{ + type: forge.pki.oids.contentType, + value: forge.pki.oids.data + }, { + type: forge.pki.oids.messageDigest + // value will be auto-populated at signing time + }, { + type: forge.pki.oids.signingTime, + // value can also be auto-populated at signing time + value: new Date() + }] +}); +p7.sign(); +var pem = forge.pkcs7.messageToPem(p7); + +// PKCS#7 Sign in detached mode. +// Includes the signature and certificate without the signed data. +p7.sign({detached: true}); + +``` + + + +### PKCS#8 + +__Examples__ + +```js +var pki = forge.pki; + +// convert a PEM-formatted private key to a Forge private key +var privateKey = pki.privateKeyFromPem(pem); + +// convert a Forge private key to PEM-format +var pem = pki.privateKeyToPem(privateKey); + +// convert an ASN.1 PrivateKeyInfo or RSAPrivateKey to a Forge private key +var privateKey = pki.privateKeyFromAsn1(rsaPrivateKey); + +// convert a Forge private key to an ASN.1 RSAPrivateKey +var rsaPrivateKey = pki.privateKeyToAsn1(privateKey); + +// wrap an RSAPrivateKey ASN.1 object in a PKCS#8 ASN.1 PrivateKeyInfo +var privateKeyInfo = pki.wrapRsaPrivateKey(rsaPrivateKey); + +// convert a PKCS#8 ASN.1 PrivateKeyInfo to PEM +var pem = pki.privateKeyInfoToPem(privateKeyInfo); + +// encrypts a PrivateKeyInfo using a custom password and +// outputs an EncryptedPrivateKeyInfo +var encryptedPrivateKeyInfo = pki.encryptPrivateKeyInfo( + privateKeyInfo, 'myCustomPasswordHere', { + algorithm: 'aes256', // 'aes128', 'aes192', 'aes256', '3des' + }); + +// decrypts an ASN.1 EncryptedPrivateKeyInfo that was encrypted +// with a custom password +var privateKeyInfo = pki.decryptPrivateKeyInfo( + encryptedPrivateKeyInfo, 'myCustomPasswordHere'); + +// converts an EncryptedPrivateKeyInfo to PEM +var pem = pki.encryptedPrivateKeyToPem(encryptedPrivateKeyInfo); + +// converts a PEM-encoded EncryptedPrivateKeyInfo to ASN.1 format +var encryptedPrivateKeyInfo = pki.encryptedPrivateKeyFromPem(pem); + +// wraps and encrypts a Forge private key and outputs it in PEM format +var pem = pki.encryptRsaPrivateKey(privateKey, 'password'); + +// encrypts a Forge private key and outputs it in PEM format using OpenSSL's +// proprietary legacy format + encapsulated PEM headers (DEK-Info) +var pem = pki.encryptRsaPrivateKey(privateKey, 'password', {legacy: true}); + +// decrypts a PEM-formatted, encrypted private key +var privateKey = pki.decryptRsaPrivateKey(pem, 'password'); + +// sets an RSA public key from a private key +var publicKey = pki.setRsaPublicKey(privateKey.n, privateKey.e); +``` + + + +### PKCS#10 + +Provides certification requests or certificate signing requests (CSR) from +[PKCS#10][]. + +__Examples__ + +```js +// generate a key pair +var keys = forge.pki.rsa.generateKeyPair(2048); + +// create a certification request (CSR) +var csr = forge.pki.createCertificationRequest(); +csr.publicKey = keys.publicKey; +csr.setSubject([{ + name: 'commonName', + value: 'example.org' +}, { + name: 'countryName', + value: 'US' +}, { + shortName: 'ST', + value: 'Virginia' +}, { + name: 'localityName', + value: 'Blacksburg' +}, { + name: 'organizationName', + value: 'Test' +}, { + shortName: 'OU', + value: 'Test' +}]); +// set (optional) attributes +csr.setAttributes([{ + name: 'challengePassword', + value: 'password' +}, { + name: 'unstructuredName', + value: 'My Company, Inc.' +}, { + name: 'extensionRequest', + extensions: [{ + name: 'subjectAltName', + altNames: [{ + // 2 is DNS type + type: 2, + value: 'test.domain.com' + }, { + type: 2, + value: 'other.domain.com', + }, { + type: 2, + value: 'www.domain.net' + }] + }] +}]); + +// sign certification request +csr.sign(keys.privateKey); + +// verify certification request +var verified = csr.verify(); + +// convert certification request to PEM-format +var pem = forge.pki.certificationRequestToPem(csr); + +// convert a Forge certification request from PEM-format +var csr = forge.pki.certificationRequestFromPem(pem); + +// get an attribute +csr.getAttribute({name: 'challengePassword'}); + +// get extensions array +csr.getAttribute({name: 'extensionRequest'}).extensions; + +``` + + + +### PKCS#12 + +Provides the cryptographic archive file format from [PKCS#12][]. + +**Note for Chrome/Firefox/iOS/similar users**: If you have trouble importing +a PKCS#12 container, try using the TripleDES algorithm. It can be passed +to `forge.pkcs12.toPkcs12Asn1` using the `{algorithm: '3des'}` option. + +__Examples__ + +```js +// decode p12 from base64 +var p12Der = forge.util.decode64(p12b64); +// get p12 as ASN.1 object +var p12Asn1 = forge.asn1.fromDer(p12Der); +// decrypt p12 using the password 'password' +var p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, 'password'); +// decrypt p12 using non-strict parsing mode (resolves some ASN.1 parse errors) +var p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, false, 'password'); +// decrypt p12 using literally no password (eg: Mac OS X/apple push) +var p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1); +// decrypt p12 using an "empty" password (eg: OpenSSL with no password input) +var p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, ''); +// p12.safeContents is an array of safe contents, each of +// which contains an array of safeBags + +// get bags by friendlyName +var bags = p12.getBags({friendlyName: 'test'}); +// bags are key'd by attribute type (here "friendlyName") +// and the key values are an array of matching objects +var cert = bags.friendlyName[0]; + +// get bags by localKeyId +var bags = p12.getBags({localKeyId: buffer}); +// bags are key'd by attribute type (here "localKeyId") +// and the key values are an array of matching objects +var cert = bags.localKeyId[0]; + +// get bags by localKeyId (input in hex) +var bags = p12.getBags({localKeyIdHex: '7b59377ff142d0be4565e9ac3d396c01401cd879'}); +// bags are key'd by attribute type (here "localKeyId", *not* "localKeyIdHex") +// and the key values are an array of matching objects +var cert = bags.localKeyId[0]; + +// get bags by type +var bags = p12.getBags({bagType: forge.pki.oids.certBag}); +// bags are key'd by bagType and each bagType key's value +// is an array of matches (in this case, certificate objects) +var cert = bags[forge.pki.oids.certBag][0]; + +// get bags by friendlyName and filter on bag type +var bags = p12.getBags({ + friendlyName: 'test', + bagType: forge.pki.oids.certBag +}); + +// get key bags +var bags = p12.getBags({bagType: forge.pki.oids.keyBag}); +// get key +var bag = bags[forge.pki.oids.keyBag][0]; +var key = bag.key; +// if the key is in a format unrecognized by forge then +// bag.key will be `null`, use bag.asn1 to get the ASN.1 +// representation of the key +if(bag.key === null) { + var keyAsn1 = bag.asn1; + // can now convert back to DER/PEM/etc for export +} + +// generate a p12 using AES (default) +var p12Asn1 = forge.pkcs12.toPkcs12Asn1( + privateKey, certificateChain, 'password'); + +// generate a p12 that can be imported by Chrome/Firefox/iOS +// (requires the use of Triple DES instead of AES) +var p12Asn1 = forge.pkcs12.toPkcs12Asn1( + privateKey, certificateChain, 'password', + {algorithm: '3des'}); + +// base64-encode p12 +var p12Der = forge.asn1.toDer(p12Asn1).getBytes(); +var p12b64 = forge.util.encode64(p12Der); + +// create download link for p12 +var a = document.createElement('a'); +a.download = 'example.p12'; +a.setAttribute('href', 'data:application/x-pkcs12;base64,' + p12b64); +a.appendChild(document.createTextNode('Download')); +``` + + + +### ASN.1 + +Provides [ASN.1][] DER encoding and decoding. + +__Examples__ + +```js +var asn1 = forge.asn1; + +// create a SubjectPublicKeyInfo +var subjectPublicKeyInfo = + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // AlgorithmIdentifier + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids['rsaEncryption']).getBytes()), + // parameters (null) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]), + // subjectPublicKey + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, [ + // RSAPublicKey + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // modulus (n) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.n)), + // publicExponent (e) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.e)) + ]) + ]) + ]); + +// serialize an ASN.1 object to DER format +var derBuffer = asn1.toDer(subjectPublicKeyInfo); + +// deserialize to an ASN.1 object from a byte buffer filled with DER data +var object = asn1.fromDer(derBuffer); + +// convert an OID dot-separated string to a byte buffer +var derOidBuffer = asn1.oidToDer('1.2.840.113549.1.1.5'); + +// convert a byte buffer with a DER-encoded OID to a dot-separated string +console.log(asn1.derToOid(derOidBuffer)); +// output: 1.2.840.113549.1.1.5 + +// validates that an ASN.1 object matches a particular ASN.1 structure and +// captures data of interest from that structure for easy access +var publicKeyValidator = { + name: 'SubjectPublicKeyInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'subjectPublicKeyInfo', + value: [{ + name: 'SubjectPublicKeyInfo.AlgorithmIdentifier', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'AlgorithmIdentifier.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'publicKeyOid' + }] + }, { + // subjectPublicKey + name: 'SubjectPublicKeyInfo.subjectPublicKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.BITSTRING, + constructed: false, + value: [{ + // RSAPublicKey + name: 'SubjectPublicKeyInfo.subjectPublicKey.RSAPublicKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + optional: true, + captureAsn1: 'rsaPublicKey' + }] + }] +}; + +var capture = {}; +var errors = []; +if(!asn1.validate( + publicKeyValidator, subjectPublicKeyInfo, validator, capture, errors)) { + throw 'ASN.1 object is not a SubjectPublicKeyInfo.'; +} +// capture.subjectPublicKeyInfo contains the full ASN.1 object +// capture.rsaPublicKey contains the full ASN.1 object for the RSA public key +// capture.publicKeyOid only contains the value for the OID +var oid = asn1.derToOid(capture.publicKeyOid); +if(oid !== pki.oids['rsaEncryption']) { + throw 'Unsupported OID.'; +} + +// pretty print an ASN.1 object to a string for debugging purposes +asn1.prettyPrint(object); +``` + +Message Digests +---------------- + + + +### SHA1 + +Provides [SHA-1][] message digests. + +__Examples__ + +```js +var md = forge.md.sha1.create(); +md.update('The quick brown fox jumps over the lazy dog'); +console.log(md.digest().toHex()); +// output: 2fd4e1c67a2d28fced849ee1bb76e7391b93eb12 +``` + + + +### SHA256 + +Provides [SHA-256][] message digests. + +__Examples__ + +```js +var md = forge.md.sha256.create(); +md.update('The quick brown fox jumps over the lazy dog'); +console.log(md.digest().toHex()); +// output: d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592 +``` + + + +### SHA384 + +Provides [SHA-384][] message digests. + +__Examples__ + +```js +var md = forge.md.sha384.create(); +md.update('The quick brown fox jumps over the lazy dog'); +console.log(md.digest().toHex()); +// output: ca737f1014a48f4c0b6dd43cb177b0afd9e5169367544c494011e3317dbf9a509cb1e5dc1e85a941bbee3d7f2afbc9b1 +``` + + + +### SHA512 + +Provides [SHA-512][] message digests. + +__Examples__ + +```js +// SHA-512 +var md = forge.md.sha512.create(); +md.update('The quick brown fox jumps over the lazy dog'); +console.log(md.digest().toHex()); +// output: 07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb642e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6 + +// SHA-512/224 +var md = forge.md.sha512.sha224.create(); +md.update('The quick brown fox jumps over the lazy dog'); +console.log(md.digest().toHex()); +// output: 944cd2847fb54558d4775db0485a50003111c8e5daa63fe722c6aa37 + +// SHA-512/256 +var md = forge.md.sha512.sha256.create(); +md.update('The quick brown fox jumps over the lazy dog'); +console.log(md.digest().toHex()); +// output: dd9d67b371519c339ed8dbd25af90e976a1eeefd4ad3d889005e532fc5bef04d +``` + + + +### MD5 + +Provides [MD5][] message digests. + +__Examples__ + +```js +var md = forge.md.md5.create(); +md.update('The quick brown fox jumps over the lazy dog'); +console.log(md.digest().toHex()); +// output: 9e107d9d372bb6826bd81d3542a419d6 +``` + + + +### HMAC + +Provides [HMAC][] w/any supported message digest algorithm. + +__Examples__ + +```js +var hmac = forge.hmac.create(); +hmac.start('sha1', 'Jefe'); +hmac.update('what do ya want for nothing?'); +console.log(hmac.digest().toHex()); +// output: effcdf6ae5eb2fa2d27416d5f184df9c259a7c79 +``` + +Utilities +--------- + + + +### Prime + +Provides an API for generating large, random, probable primes. + +__Examples__ + +```js +// generate a random prime on the main JS thread +var bits = 1024; +forge.prime.generateProbablePrime(bits, function(err, num) { + console.log('random prime', num.toString(16)); +}); + +// generate a random prime using Web Workers (if available, otherwise +// falls back to the main thread) +var bits = 1024; +var options = { + algorithm: { + name: 'PRIMEINC', + workers: -1 // auto-optimize # of workers + } +}; +forge.prime.generateProbablePrime(bits, options, function(err, num) { + console.log('random prime', num.toString(16)); +}); +``` + + + +### PRNG + +Provides a [Fortuna][]-based cryptographically-secure pseudo-random number +generator, to be used with a cryptographic function backend, e.g. [AES][]. An +implementation using [AES][] as a backend is provided. An API for collecting +entropy is given, though if window.crypto.getRandomValues is available, it will +be used automatically. + +__Examples__ + +```js +// get some random bytes synchronously +var bytes = forge.random.getBytesSync(32); +console.log(forge.util.bytesToHex(bytes)); + +// get some random bytes asynchronously +forge.random.getBytes(32, function(err, bytes) { + console.log(forge.util.bytesToHex(bytes)); +}); + +// collect some entropy if you'd like +forge.random.collect(someRandomBytes); +jQuery().mousemove(function(e) { + forge.random.collectInt(e.clientX, 16); + forge.random.collectInt(e.clientY, 16); +}); + +// specify a seed file for use with the synchronous API if you'd like +forge.random.seedFileSync = function(needed) { + // get 'needed' number of random bytes from somewhere + return fetchedRandomBytes; +}; + +// specify a seed file for use with the asynchronous API if you'd like +forge.random.seedFile = function(needed, callback) { + // get the 'needed' number of random bytes from somewhere + callback(null, fetchedRandomBytes); +}); + +// register the main thread to send entropy or a Web Worker to receive +// entropy on demand from the main thread +forge.random.registerWorker(self); + +// generate a new instance of a PRNG with no collected entropy +var myPrng = forge.random.createInstance(); +``` + + + +### Tasks + +Provides queuing and synchronizing tasks in a web application. + +__Examples__ + +```js +// TODO +``` + + + +### Utilities + +Provides utility functions, including byte buffer support, base64, +bytes to/from hex, zlib inflate/deflate, etc. + +__Examples__ + +```js +// encode/decode base64 +var encoded = forge.util.encode64(str); +var str = forge.util.decode64(encoded); + +// encode/decode UTF-8 +var encoded = forge.util.encodeUtf8(str); +var str = forge.util.decodeUtf8(encoded); + +// bytes to/from hex +var bytes = forge.util.hexToBytes(hex); +var hex = forge.util.bytesToHex(bytes); + +// create an empty byte buffer +var buffer = forge.util.createBuffer(); +// create a byte buffer from raw binary bytes +var buffer = forge.util.createBuffer(input, 'raw'); +// create a byte buffer from utf8 bytes +var buffer = forge.util.createBuffer(input, 'utf8'); + +// get the length of the buffer in bytes +buffer.length(); +// put bytes into the buffer +buffer.putBytes(bytes); +// put a 32-bit integer into the buffer +buffer.putInt32(10); +// buffer to hex +buffer.toHex(); +// get a copy of the bytes in the buffer +bytes.bytes(/* count */); +// empty this buffer and get its contents +bytes.getBytes(/* count */); + +// convert a forge buffer into a Node.js Buffer +// make sure you specify the encoding as 'binary' +var forgeBuffer = forge.util.createBuffer(); +var nodeBuffer = Buffer.from(forgeBuffer.getBytes(), 'binary'); + +// convert a Node.js Buffer into a forge buffer +// make sure you specify the encoding as 'binary' +var nodeBuffer = Buffer.from('CAFE', 'hex'); +var forgeBuffer = forge.util.createBuffer(nodeBuffer.toString('binary')); +``` + + + +### Logging + +Provides logging to a javascript console using various categories and +levels of verbosity. + +__Examples__ + +```js +// TODO +``` + + + +### Flash Networking Support + +The [flash README](./flash/README.md) provides details on rebuilding the +optional Flash component used for networking. It also provides details on +Policy Server support. + +Security Considerations +----------------------- + +When using this code please keep the following in mind: + +- Cryptography is hard. Please review and test this code before depending on it + for critical functionality. +- The nature of JavaScript is that execution of this code depends on trusting a + very large set of JavaScript tools and systems. Consider runtime variations, + runtime characteristics, runtime optimization, code optimization, code + minimization, code obfuscation, bundling tools, possible bugs, the Forge code + itself, and so on. +- If using pre-built bundles from [NPM][], another CDN, or similar, be aware + someone else ran the tools to create those files. +- Use a secure transport channel such as [TLS][] to load scripts and consider + using additional security mechanisms such as [Subresource Integrity][] script + attributes. +- Use "native" functionality where possible. This can be critical when dealing + with performance and random number generation. Note that the JavaScript + random number algorithms should perform well if given suitable entropy. +- Understand possible attacks against cryptographic systems. For instance side + channel and timing attacks may be possible due to the difficulty in + implementing constant time algorithms in pure JavaScript. +- Certain features in this library are less susceptible to attacks depending on + usage. This primarily includes features that deal with data format + manipulation or those that are not involved in communication. + +Library Background +------------------ + +* https://digitalbazaar.com/2010/07/20/javascript-tls-1/ +* https://digitalbazaar.com/2010/07/20/javascript-tls-2/ + +Contact +------- + +* Code: https://github.com/digitalbazaar/forge +* Bugs: https://github.com/digitalbazaar/forge/issues +* Email: support@digitalbazaar.com +* IRC: [#forgejs][] on [Libera.Chat][] (people may also be on [freenode][] for + historical reasons). + +Donations +--------- + +Financial support is welcome and helps contribute to futher development: + +* For [PayPal][] please send to paypal@digitalbazaar.com. +* Something else? Please contact support@digitalbazaar.com. + +[#forgejs]: https://webchat.freenode.net/?channels=#forgejs +[0.6.x]: https://github.com/digitalbazaar/forge/tree/0.6.x +[3DES]: https://en.wikipedia.org/wiki/Triple_DES +[AES]: https://en.wikipedia.org/wiki/Advanced_Encryption_Standard +[ASN.1]: https://en.wikipedia.org/wiki/ASN.1 +[Browserify]: http://browserify.org/ +[CBC]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation +[CFB]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation +[CTR]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation +[CommonJS]: https://en.wikipedia.org/wiki/CommonJS +[DES]: https://en.wikipedia.org/wiki/Data_Encryption_Standard +[ECB]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation +[Fortuna]: https://en.wikipedia.org/wiki/Fortuna_(PRNG) +[GCM]: https://en.wikipedia.org/wiki/GCM_mode +[HMAC]: https://en.wikipedia.org/wiki/HMAC +[JavaScript]: https://en.wikipedia.org/wiki/JavaScript +[Karma]: https://karma-runner.github.io/ +[Libera.Chat]: https://libera.chat/ +[MD5]: https://en.wikipedia.org/wiki/MD5 +[NPM]: https://www.npmjs.com/ +[Node.js]: https://nodejs.org/ +[OFB]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation +[PKCS#10]: https://en.wikipedia.org/wiki/Certificate_signing_request +[PKCS#12]: https://en.wikipedia.org/wiki/PKCS_%E2%99%AF12 +[PKCS#5]: https://en.wikipedia.org/wiki/PKCS +[PKCS#7]: https://en.wikipedia.org/wiki/Cryptographic_Message_Syntax +[PayPal]: https://www.paypal.com/ +[RC2]: https://en.wikipedia.org/wiki/RC2 +[SHA-1]: https://en.wikipedia.org/wiki/SHA-1 +[SHA-256]: https://en.wikipedia.org/wiki/SHA-256 +[SHA-384]: https://en.wikipedia.org/wiki/SHA-384 +[SHA-512]: https://en.wikipedia.org/wiki/SHA-512 +[Subresource Integrity]: https://www.w3.org/TR/SRI/ +[TLS]: https://en.wikipedia.org/wiki/Transport_Layer_Security +[UMD]: https://github.com/umdjs/umd +[X.509]: https://en.wikipedia.org/wiki/X.509 +[freenode]: https://freenode.net/ +[unpkg]: https://unpkg.com/ +[webpack]: https://webpack.github.io/ +[TweetNaCl.js]: https://github.com/dchest/tweetnacl-js diff --git a/node_modules/node-forge/dist/forge.all.min.js b/node_modules/node-forge/dist/forge.all.min.js new file mode 100644 index 0000000..65dccf2 --- /dev/null +++ b/node_modules/node-forge/dist/forge.all.min.js @@ -0,0 +1,2 @@ +!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.forge=t():e.forge=t()}(window,(function(){return function(e){var t={};function r(n){if(t[n])return t[n].exports;var a=t[n]={i:n,l:!1,exports:{}};return e[n].call(a.exports,a,a.exports,r),a.l=!0,a.exports}return r.m=e,r.c=t,r.d=function(e,t,n){r.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},r.r=function(e){"undefined"!=typeof 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max is 32-bits.");return e.getSignedInt(t)},a.validate=function(e,t,r,i){var s=!1;if(e.tagClass!==t.tagClass&&void 0!==t.tagClass||e.type!==t.type&&void 0!==t.type)i&&(e.tagClass!==t.tagClass&&i.push("["+t.name+'] Expected tag class "'+t.tagClass+'", got "'+e.tagClass+'"'),e.type!==t.type&&i.push("["+t.name+'] Expected type "'+t.type+'", got "'+e.type+'"'));else if(e.constructed===t.constructed||void 0===t.constructed){if(s=!0,t.value&&n.util.isArray(t.value))for(var o=0,c=0;s&&c0&&(i+="\n");for(var o="",c=0;c1?i+="0x"+n.util.bytesToHex(e.value.slice(1)):i+="(none)",e.value.length>0){var f=e.value.charCodeAt(0);1==f?i+=" (1 unused bit shown)":f>1&&(i+=" ("+f+" unused bits shown)")}}else if(e.type===a.Type.OCTETSTRING)s.test(e.value)||(i+="("+e.value+") "),i+="0x"+n.util.bytesToHex(e.value);else if(e.type===a.Type.UTF8)try{i+=n.util.decodeUtf8(e.value)}catch(t){if("URI malformed"!==t.message)throw t;i+="0x"+n.util.bytesToHex(e.value)+" (malformed UTF8)"}else 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a,o,l,p,f,h,d,y,g,v,m,C,E=e.length/4-1;n?(a=u[0],o=u[1],l=u[2],p=u[3],f=s):(a=c[0],o=c[1],l=c[2],p=c[3],f=i),h=t[0]^e[0],d=t[n?3:1]^e[1],y=t[2]^e[2],g=t[n?1:3]^e[3];for(var S=3,T=1;T>>24]^o[d>>>16&255]^l[y>>>8&255]^p[255&g]^e[++S],m=a[d>>>24]^o[y>>>16&255]^l[g>>>8&255]^p[255&h]^e[++S],C=a[y>>>24]^o[g>>>16&255]^l[h>>>8&255]^p[255&d]^e[++S],g=a[g>>>24]^o[h>>>16&255]^l[d>>>8&255]^p[255&y]^e[++S],h=v,d=m,y=C;r[0]=f[h>>>24]<<24^f[d>>>16&255]<<16^f[y>>>8&255]<<8^f[255&g]^e[++S],r[n?3:1]=f[d>>>24]<<24^f[y>>>16&255]<<16^f[g>>>8&255]<<8^f[255&h]^e[++S],r[2]=f[y>>>24]<<24^f[g>>>16&255]<<16^f[h>>>8&255]<<8^f[255&d]^e[++S],r[n?1:3]=f[g>>>24]<<24^f[h>>>16&255]<<16^f[d>>>8&255]<<8^f[255&y]^e[++S]}function d(e){var t,r="AES-"+((e=e||{}).mode||"CBC").toUpperCase(),a=(t=e.decrypt?n.cipher.createDecipher(r,e.key):n.cipher.createCipher(r,e.key)).start;return t.start=function(e,r){var i=null;r instanceof n.util.ByteBuffer&&(i=r,r={}),(r=r||{}).output=i,r.iv=e,a.call(t,r)},t}},function(e,t,r){var n=r(0);n.pki=n.pki||{};var a=e.exports=n.pki.oids=n.oids=n.oids||{};function i(e,t){a[e]=t,a[t]=e}function 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g")},function(e,t,r){var n=r(0);r(1);var a=e.exports=n.pem=n.pem||{};function i(e){for(var t=e.name+": ",r=[],n=function(e,t){return" "+t},a=0;a65&&-1!==s){var o=t[s];","===o?(++s,t=t.substr(0,s)+"\r\n "+t.substr(s)):t=t.substr(0,s)+"\r\n"+o+t.substr(s+1),i=a-s-1,s=-1,++a}else" "!==t[a]&&"\t"!==t[a]&&","!==t[a]||(s=a);return t}function s(e){return e.replace(/^\s+/,"")}a.encode=function(e,t){t=t||{};var r,a="-----BEGIN "+e.type+"-----\r\n";if(e.procType&&(a+=i(r={name:"Proc-Type",values:[String(e.procType.version),e.procType.type]})),e.contentDomain&&(a+=i(r={name:"Content-Domain",values:[e.contentDomain]})),e.dekInfo&&(r={name:"DEK-Info",values:[e.dekInfo.algorithm]},e.dekInfo.parameters&&r.values.push(e.dekInfo.parameters),a+=i(r)),e.headers)for(var s=0;st.blockLength&&(t.start(),t.update(s.bytes()),s=t.digest()),r=n.util.createBuffer(),a=n.util.createBuffer(),u=s.length();for(c=0;c>>0,c>>>0];for(var u=a.fullMessageLength.length-1;u>=0;--u)a.fullMessageLength[u]+=c[1],c[1]=c[0]+(a.fullMessageLength[u]/4294967296>>>0),a.fullMessageLength[u]=a.fullMessageLength[u]>>>0,c[0]=c[1]/4294967296>>>0;return t.putBytes(i),o(e,r,t),(t.read>2048||0===t.length())&&t.compact(),a},a.digest=function(){var s=n.util.createBuffer();s.putBytes(t.bytes());var c,u=a.fullMessageLength[a.fullMessageLength.length-1]+a.messageLengthSize&a.blockLength-1;s.putBytes(i.substr(0,a.blockLength-u));for(var l=8*a.fullMessageLength[0],p=0;p>>0,s.putInt32(l>>>0),l=c>>>0;s.putInt32(l);var f={h0:e.h0,h1:e.h1,h2:e.h2,h3:e.h3,h4:e.h4};o(f,r,s);var h=n.util.createBuffer();return h.putInt32(f.h0),h.putInt32(f.h1),h.putInt32(f.h2),h.putInt32(f.h3),h.putInt32(f.h4),h},a};var i=null,s=!1;function o(e,t,r){for(var n,a,i,s,o,c,u,l=r.length();l>=64;){for(a=e.h0,i=e.h1,s=e.h2,o=e.h3,c=e.h4,u=0;u<16;++u)n=r.getInt32(),t[u]=n,n=(a<<5|a>>>27)+(o^i&(s^o))+c+1518500249+n,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=a,a=n;for(;u<20;++u)n=(n=t[u-3]^t[u-8]^t[u-14]^t[u-16])<<1|n>>>31,t[u]=n,n=(a<<5|a>>>27)+(o^i&(s^o))+c+1518500249+n,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=a,a=n;for(;u<32;++u)n=(n=t[u-3]^t[u-8]^t[u-14]^t[u-16])<<1|n>>>31,t[u]=n,n=(a<<5|a>>>27)+(i^s^o)+c+1859775393+n,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=a,a=n;for(;u<40;++u)n=(n=t[u-6]^t[u-16]^t[u-28]^t[u-32])<<2|n>>>30,t[u]=n,n=(a<<5|a>>>27)+(i^s^o)+c+1859775393+n,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=a,a=n;for(;u<60;++u)n=(n=t[u-6]^t[u-16]^t[u-28]^t[u-32])<<2|n>>>30,t[u]=n,n=(a<<5|a>>>27)+(i&s|o&(i^s))+c+2400959708+n,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=a,a=n;for(;u<80;++u)n=(n=t[u-6]^t[u-16]^t[u-28]^t[u-32])<<2|n>>>30,t[u]=n,n=(a<<5|a>>>27)+(i^s^o)+c+3395469782+n,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=a,a=n;e.h0=e.h0+a|0,e.h1=e.h1+i|0,e.h2=e.h2+s|0,e.h3=e.h3+o|0,e.h4=e.h4+c|0,l-=64}}},function(e,t,r){var n=r(0);r(3),r(8),r(15),r(7),r(21),r(2),r(9),r(1);var a=function(e,t,r,a){var i=n.util.createBuffer(),s=e.length>>1,o=s+(1&e.length),c=e.substr(0,o),u=e.substr(s,o),l=n.util.createBuffer(),p=n.hmac.create();r=t+r;var f=Math.ceil(a/16),h=Math.ceil(a/20);p.start("MD5",c);var d=n.util.createBuffer();l.putBytes(r);for(var y=0;y0&&(u.queue(e,u.createAlert(e,{level:u.Alert.Level.warning,description:u.Alert.Description.no_renegotiation})),u.flush(e)),e.process()},u.parseHelloMessage=function(e,t,r){var a=null,i=e.entity===u.ConnectionEnd.client;if(r<38)e.error(e,{message:i?"Invalid ServerHello message. Message too short.":"Invalid ClientHello message. Message too short.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}});else{var s=t.fragment,c=s.length();if(a={version:{major:s.getByte(),minor:s.getByte()},random:n.util.createBuffer(s.getBytes(32)),session_id:o(s,1),extensions:[]},i?(a.cipher_suite=s.getBytes(2),a.compression_method=s.getByte()):(a.cipher_suites=o(s,2),a.compression_methods=o(s,1)),(c=r-(c-s.length()))>0){for(var l=o(s,2);l.length()>0;)a.extensions.push({type:[l.getByte(),l.getByte()],data:o(l,2)});if(!i)for(var p=0;p0;){if(0!==h.getByte())break;e.session.extensions.server_name.serverNameList.push(o(h,2).getBytes())}}}if(e.session.version&&(a.version.major!==e.session.version.major||a.version.minor!==e.session.version.minor))return e.error(e,{message:"TLS version change is disallowed during renegotiation.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.protocol_version}});if(i)e.session.cipherSuite=u.getCipherSuite(a.cipher_suite);else for(var d=n.util.createBuffer(a.cipher_suites.bytes());d.length()>0&&(e.session.cipherSuite=u.getCipherSuite(d.getBytes(2)),null===e.session.cipherSuite););if(null===e.session.cipherSuite)return e.error(e,{message:"No cipher suites in common.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.handshake_failure},cipherSuite:n.util.bytesToHex(a.cipher_suite)});e.session.compressionMethod=i?a.compression_method:u.CompressionMethod.none}return a},u.createSecurityParameters=function(e,t){var r=e.entity===u.ConnectionEnd.client,n=t.random.bytes(),a=r?e.session.sp.client_random:n,i=r?n:u.createRandom().getBytes();e.session.sp={entity:e.entity,prf_algorithm:u.PRFAlgorithm.tls_prf_sha256,bulk_cipher_algorithm:null,cipher_type:null,enc_key_length:null,block_length:null,fixed_iv_length:null,record_iv_length:null,mac_algorithm:null,mac_length:null,mac_key_length:null,compression_algorithm:e.session.compressionMethod,pre_master_secret:null,master_secret:null,client_random:a,server_random:i}},u.handleServerHello=function(e,t,r){var n=u.parseHelloMessage(e,t,r);if(!e.fail){if(!(n.version.minor<=e.version.minor))return e.error(e,{message:"Incompatible TLS version.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.protocol_version}});e.version.minor=n.version.minor,e.session.version=e.version;var a=n.session_id.bytes();a.length>0&&a===e.session.id?(e.expect=d,e.session.resuming=!0,e.session.sp.server_random=n.random.bytes()):(e.expect=l,e.session.resuming=!1,u.createSecurityParameters(e,n)),e.session.id=a,e.process()}},u.handleClientHello=function(e,t,r){var a=u.parseHelloMessage(e,t,r);if(!e.fail){var i=a.session_id.bytes(),s=null;if(e.sessionCache&&(null===(s=e.sessionCache.getSession(i))?i="":(s.version.major!==a.version.major||s.version.minor>a.version.minor)&&(s=null,i="")),0===i.length&&(i=n.random.getBytes(32)),e.session.id=i,e.session.clientHelloVersion=a.version,e.session.sp={},s)e.version=e.session.version=s.version,e.session.sp=s.sp;else{for(var o,c=1;c0;)a=o(c.certificate_list,3),i=n.asn1.fromDer(a),a=n.pki.certificateFromAsn1(i,!0),l.push(a)}catch(t){return e.error(e,{message:"Could not parse certificate list.",cause:t,send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.bad_certificate}})}var f=e.entity===u.ConnectionEnd.client;!f&&!0!==e.verifyClient||0!==l.length?0===l.length?e.expect=f?p:C:(f?e.session.serverCertificate=l[0]:e.session.clientCertificate=l[0],u.verifyCertificateChain(e,l)&&(e.expect=f?p:C)):e.error(e,{message:f?"No server certificate provided.":"No client certificate provided.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}}),e.process()},u.handleServerKeyExchange=function(e,t,r){if(r>0)return e.error(e,{message:"Invalid key parameters. Only RSA is supported.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.unsupported_certificate}});e.expect=f,e.process()},u.handleClientKeyExchange=function(e,t,r){if(r<48)return e.error(e,{message:"Invalid key parameters. Only RSA is supported.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.unsupported_certificate}});var a=t.fragment,i={enc_pre_master_secret:o(a,2).getBytes()},s=null;if(e.getPrivateKey)try{s=e.getPrivateKey(e,e.session.serverCertificate),s=n.pki.privateKeyFromPem(s)}catch(t){e.error(e,{message:"Could not get private key.",cause:t,send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.internal_error}})}if(null===s)return e.error(e,{message:"No private key set.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.internal_error}});try{var c=e.session.sp;c.pre_master_secret=s.decrypt(i.enc_pre_master_secret);var l=e.session.clientHelloVersion;if(l.major!==c.pre_master_secret.charCodeAt(0)||l.minor!==c.pre_master_secret.charCodeAt(1))throw new Error("TLS version rollback attack detected.")}catch(e){c.pre_master_secret=n.random.getBytes(48)}e.expect=S,null!==e.session.clientCertificate&&(e.expect=E),e.process()},u.handleCertificateRequest=function(e,t,r){if(r<3)return e.error(e,{message:"Invalid CertificateRequest. Message too short.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}});var n=t.fragment,a={certificate_types:o(n,1),certificate_authorities:o(n,2)};e.session.certificateRequest=a,e.expect=h,e.process()},u.handleCertificateVerify=function(e,t,r){if(r<2)return e.error(e,{message:"Invalid CertificateVerify. Message too short.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}});var a=t.fragment;a.read-=4;var i=a.bytes();a.read+=4;var s={signature:o(a,2).getBytes()},c=n.util.createBuffer();c.putBuffer(e.session.md5.digest()),c.putBuffer(e.session.sha1.digest()),c=c.getBytes();try{if(!e.session.clientCertificate.publicKey.verify(c,s.signature,"NONE"))throw new Error("CertificateVerify signature does not match.");e.session.md5.update(i),e.session.sha1.update(i)}catch(t){return e.error(e,{message:"Bad signature in CertificateVerify.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.handshake_failure}})}e.expect=S,e.process()},u.handleServerHelloDone=function(e,t,r){if(r>0)return e.error(e,{message:"Invalid ServerHelloDone message. Invalid length.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.record_overflow}});if(null===e.serverCertificate){var a={message:"No server certificate provided. Not enough security.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.insufficient_security}},i=e.verify(e,a.alert.description,0,[]);if(!0!==i)return(i||0===i)&&("object"!=typeof i||n.util.isArray(i)?"number"==typeof i&&(a.alert.description=i):(i.message&&(a.message=i.message),i.alert&&(a.alert.description=i.alert))),e.error(e,a)}null!==e.session.certificateRequest&&(t=u.createRecord(e,{type:u.ContentType.handshake,data:u.createCertificate(e)}),u.queue(e,t)),t=u.createRecord(e,{type:u.ContentType.handshake,data:u.createClientKeyExchange(e)}),u.queue(e,t),e.expect=v;var s=function(e,t){null!==e.session.certificateRequest&&null!==e.session.clientCertificate&&u.queue(e,u.createRecord(e,{type:u.ContentType.handshake,data:u.createCertificateVerify(e,t)})),u.queue(e,u.createRecord(e,{type:u.ContentType.change_cipher_spec,data:u.createChangeCipherSpec()})),e.state.pending=u.createConnectionState(e),e.state.current.write=e.state.pending.write,u.queue(e,u.createRecord(e,{type:u.ContentType.handshake,data:u.createFinished(e)})),e.expect=d,u.flush(e),e.process()};if(null===e.session.certificateRequest||null===e.session.clientCertificate)return s(e,null);u.getClientSignature(e,s)},u.handleChangeCipherSpec=function(e,t){if(1!==t.fragment.getByte())return e.error(e,{message:"Invalid ChangeCipherSpec message received.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}});var r=e.entity===u.ConnectionEnd.client;(e.session.resuming&&r||!e.session.resuming&&!r)&&(e.state.pending=u.createConnectionState(e)),e.state.current.read=e.state.pending.read,(!e.session.resuming&&r||e.session.resuming&&!r)&&(e.state.pending=null),e.expect=r?y:T,e.process()},u.handleFinished=function(e,t,r){var i=t.fragment;i.read-=4;var s=i.bytes();i.read+=4;var o=t.fragment.getBytes();(i=n.util.createBuffer()).putBuffer(e.session.md5.digest()),i.putBuffer(e.session.sha1.digest());var c=e.entity===u.ConnectionEnd.client,l=c?"server finished":"client finished",p=e.session.sp;if((i=a(p.master_secret,l,i.getBytes(),12)).getBytes()!==o)return e.error(e,{message:"Invalid verify_data in Finished message.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.decrypt_error}});e.session.md5.update(s),e.session.sha1.update(s),(e.session.resuming&&c||!e.session.resuming&&!c)&&(u.queue(e,u.createRecord(e,{type:u.ContentType.change_cipher_spec,data:u.createChangeCipherSpec()})),e.state.current.write=e.state.pending.write,e.state.pending=null,u.queue(e,u.createRecord(e,{type:u.ContentType.handshake,data:u.createFinished(e)}))),e.expect=c?g:I,e.handshaking=!1,++e.handshakes,e.peerCertificate=c?e.session.serverCertificate:e.session.clientCertificate,u.flush(e),e.isConnected=!0,e.connected(e),e.process()},u.handleAlert=function(e,t){var r,n=t.fragment,a={level:n.getByte(),description:n.getByte()};switch(a.description){case u.Alert.Description.close_notify:r="Connection closed.";break;case u.Alert.Description.unexpected_message:r="Unexpected message.";break;case u.Alert.Description.bad_record_mac:r="Bad record MAC.";break;case u.Alert.Description.decryption_failed:r="Decryption failed.";break;case u.Alert.Description.record_overflow:r="Record overflow.";break;case u.Alert.Description.decompression_failure:r="Decompression failed.";break;case u.Alert.Description.handshake_failure:r="Handshake failure.";break;case u.Alert.Description.bad_certificate:r="Bad certificate.";break;case u.Alert.Description.unsupported_certificate:r="Unsupported certificate.";break;case u.Alert.Description.certificate_revoked:r="Certificate revoked.";break;case u.Alert.Description.certificate_expired:r="Certificate expired.";break;case u.Alert.Description.certificate_unknown:r="Certificate unknown.";break;case u.Alert.Description.illegal_parameter:r="Illegal parameter.";break;case u.Alert.Description.unknown_ca:r="Unknown certificate authority.";break;case u.Alert.Description.access_denied:r="Access denied.";break;case u.Alert.Description.decode_error:r="Decode error.";break;case u.Alert.Description.decrypt_error:r="Decrypt error.";break;case u.Alert.Description.export_restriction:r="Export restriction.";break;case u.Alert.Description.protocol_version:r="Unsupported protocol version.";break;case u.Alert.Description.insufficient_security:r="Insufficient security.";break;case u.Alert.Description.internal_error:r="Internal error.";break;case u.Alert.Description.user_canceled:r="User canceled.";break;case u.Alert.Description.no_renegotiation:r="Renegotiation not supported.";break;default:r="Unknown error."}if(a.description===u.Alert.Description.close_notify)return e.close();e.error(e,{message:r,send:!1,origin:e.entity===u.ConnectionEnd.client?"server":"client",alert:a}),e.process()},u.handleHandshake=function(e,t){var r=t.fragment,a=r.getByte(),i=r.getInt24();if(i>r.length())return e.fragmented=t,t.fragment=n.util.createBuffer(),r.read-=4,e.process();e.fragmented=null,r.read-=4;var s=r.bytes(i+4);r.read+=4,a in x[e.entity][e.expect]?(e.entity!==u.ConnectionEnd.server||e.open||e.fail||(e.handshaking=!0,e.session={version:null,extensions:{server_name:{serverNameList:[]}},cipherSuite:null,compressionMethod:null,serverCertificate:null,clientCertificate:null,md5:n.md.md5.create(),sha1:n.md.sha1.create()}),a!==u.HandshakeType.hello_request&&a!==u.HandshakeType.certificate_verify&&a!==u.HandshakeType.finished&&(e.session.md5.update(s),e.session.sha1.update(s)),x[e.entity][e.expect][a](e,t,i)):u.handleUnexpected(e,t)},u.handleApplicationData=function(e,t){e.data.putBuffer(t.fragment),e.dataReady(e),e.process()},u.handleHeartbeat=function(e,t){var r=t.fragment,a=r.getByte(),i=r.getInt16(),s=r.getBytes(i);if(a===u.HeartbeatMessageType.heartbeat_request){if(e.handshaking||i>s.length)return e.process();u.queue(e,u.createRecord(e,{type:u.ContentType.heartbeat,data:u.createHeartbeat(u.HeartbeatMessageType.heartbeat_response,s)})),u.flush(e)}else if(a===u.HeartbeatMessageType.heartbeat_response){if(s!==e.expectedHeartbeatPayload)return e.process();e.heartbeatReceived&&e.heartbeatReceived(e,n.util.createBuffer(s))}e.process()};var l=1,p=2,f=3,h=4,d=5,y=6,g=7,v=8,m=1,C=2,E=3,S=4,T=5,I=6,b=u.handleUnexpected,A=u.handleChangeCipherSpec,B=u.handleAlert,N=u.handleHandshake,k=u.handleApplicationData,w=u.handleHeartbeat,R=[];R[u.ConnectionEnd.client]=[[b,B,N,b,w],[b,B,N,b,w],[b,B,N,b,w],[b,B,N,b,w],[b,B,N,b,w],[A,B,b,b,w],[b,B,N,b,w],[b,B,N,k,w],[b,B,N,b,w]],R[u.ConnectionEnd.server]=[[b,B,N,b,w],[b,B,N,b,w],[b,B,N,b,w],[b,B,N,b,w],[A,B,b,b,w],[b,B,N,b,w],[b,B,N,k,w],[b,B,N,b,w]];var L=u.handleHelloRequest,_=u.handleServerHello,U=u.handleCertificate,D=u.handleServerKeyExchange,P=u.handleCertificateRequest,V=u.handleServerHelloDone,O=u.handleFinished,x=[];x[u.ConnectionEnd.client]=[[b,b,_,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b],[L,b,b,b,b,b,b,b,b,b,b,U,D,P,V,b,b,b,b,b,b],[L,b,b,b,b,b,b,b,b,b,b,b,D,P,V,b,b,b,b,b,b],[L,b,b,b,b,b,b,b,b,b,b,b,b,P,V,b,b,b,b,b,b],[L,b,b,b,b,b,b,b,b,b,b,b,b,b,V,b,b,b,b,b,b],[L,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b],[L,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,O],[L,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b],[L,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b]];var K=u.handleClientHello,M=u.handleClientKeyExchange,F=u.handleCertificateVerify;x[u.ConnectionEnd.server]=[[b,K,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b],[b,b,b,b,b,b,b,b,b,b,b,U,b,b,b,b,b,b,b,b,b],[b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,M,b,b,b,b],[b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,F,b,b,b,b,b],[b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b],[b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,O],[b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b],[b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b]],u.generateKeys=function(e,t){var r=a,n=t.client_random+t.server_random;e.session.resuming||(t.master_secret=r(t.pre_master_secret,"master secret",n,48).bytes(),t.pre_master_secret=null),n=t.server_random+t.client_random;var i=2*t.mac_key_length+2*t.enc_key_length,s=e.version.major===u.Versions.TLS_1_0.major&&e.version.minor===u.Versions.TLS_1_0.minor;s&&(i+=2*t.fixed_iv_length);var o=r(t.master_secret,"key expansion",n,i),c={client_write_MAC_key:o.getBytes(t.mac_key_length),server_write_MAC_key:o.getBytes(t.mac_key_length),client_write_key:o.getBytes(t.enc_key_length),server_write_key:o.getBytes(t.enc_key_length)};return s&&(c.client_write_IV=o.getBytes(t.fixed_iv_length),c.server_write_IV=o.getBytes(t.fixed_iv_length)),c},u.createConnectionState=function(e){var t=e.entity===u.ConnectionEnd.client,r=function(){var e={sequenceNumber:[0,0],macKey:null,macLength:0,macFunction:null,cipherState:null,cipherFunction:function(e){return!0},compressionState:null,compressFunction:function(e){return!0},updateSequenceNumber:function(){4294967295===e.sequenceNumber[1]?(e.sequenceNumber[1]=0,++e.sequenceNumber[0]):++e.sequenceNumber[1]}};return e},n={read:r(),write:r()};if(n.read.update=function(e,t){return n.read.cipherFunction(t,n.read)?n.read.compressFunction(e,t,n.read)||e.error(e,{message:"Could not decompress record.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.decompression_failure}}):e.error(e,{message:"Could not decrypt record or bad MAC.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.bad_record_mac}}),!e.fail},n.write.update=function(e,t){return n.write.compressFunction(e,t,n.write)?n.write.cipherFunction(t,n.write)||e.error(e,{message:"Could not encrypt record.",send:!1,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.internal_error}}):e.error(e,{message:"Could not compress record.",send:!1,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.internal_error}}),!e.fail},e.session){var a=e.session.sp;switch(e.session.cipherSuite.initSecurityParameters(a),a.keys=u.generateKeys(e,a),n.read.macKey=t?a.keys.server_write_MAC_key:a.keys.client_write_MAC_key,n.write.macKey=t?a.keys.client_write_MAC_key:a.keys.server_write_MAC_key,e.session.cipherSuite.initConnectionState(n,e,a),a.compression_algorithm){case u.CompressionMethod.none:break;case u.CompressionMethod.deflate:n.read.compressFunction=s,n.write.compressFunction=i;break;default:throw new Error("Unsupported compression algorithm.")}}return n},u.createRandom=function(){var e=new Date,t=+e+6e4*e.getTimezoneOffset(),r=n.util.createBuffer();return r.putInt32(t),r.putBytes(n.random.getBytes(28)),r},u.createRecord=function(e,t){return t.data?{type:t.type,version:{major:e.version.major,minor:e.version.minor},length:t.data.length(),fragment:t.data}:null},u.createAlert=function(e,t){var r=n.util.createBuffer();return r.putByte(t.level),r.putByte(t.description),u.createRecord(e,{type:u.ContentType.alert,data:r})},u.createClientHello=function(e){e.session.clientHelloVersion={major:e.version.major,minor:e.version.minor};for(var t=n.util.createBuffer(),r=0;r0&&(d+=2);var y=e.session.id,g=y.length+1+2+4+28+2+i+1+o+d,v=n.util.createBuffer();return v.putByte(u.HandshakeType.client_hello),v.putInt24(g),v.putByte(e.version.major),v.putByte(e.version.minor),v.putBytes(e.session.sp.client_random),c(v,1,n.util.createBuffer(y)),c(v,2,t),c(v,1,s),d>0&&c(v,2,l),v},u.createServerHello=function(e){var t=e.session.id,r=t.length+1+2+4+28+2+1,a=n.util.createBuffer();return a.putByte(u.HandshakeType.server_hello),a.putInt24(r),a.putByte(e.version.major),a.putByte(e.version.minor),a.putBytes(e.session.sp.server_random),c(a,1,n.util.createBuffer(t)),a.putByte(e.session.cipherSuite.id[0]),a.putByte(e.session.cipherSuite.id[1]),a.putByte(e.session.compressionMethod),a},u.createCertificate=function(e){var t,r=e.entity===u.ConnectionEnd.client,a=null;e.getCertificate&&(t=r?e.session.certificateRequest:e.session.extensions.server_name.serverNameList,a=e.getCertificate(e,t));var i=n.util.createBuffer();if(null!==a)try{n.util.isArray(a)||(a=[a]);for(var s=null,o=0;ou.MaxFragment;)a.push(u.createRecord(e,{type:t.type,data:n.util.createBuffer(i.slice(0,u.MaxFragment))})),i=i.slice(u.MaxFragment);i.length>0&&a.push(u.createRecord(e,{type:t.type,data:n.util.createBuffer(i)}))}for(var s=0;s0&&(a=r.order[0]),null!==a&&a in r.cache)for(var i in t=r.cache[a],delete r.cache[a],r.order)if(r.order[i]===a){r.order.splice(i,1);break}return t},r.setSession=function(e,t){if(r.order.length===r.capacity){var a=r.order.shift();delete r.cache[a]}a=n.util.bytesToHex(e);r.order.push(a),r.cache[a]=t}}return r},u.createConnection=function(e){var t=null;t=e.caStore?n.util.isArray(e.caStore)?n.pki.createCaStore(e.caStore):e.caStore:n.pki.createCaStore();var r=e.cipherSuites||null;if(null===r)for(var a in r=[],u.CipherSuites)r.push(u.CipherSuites[a]);var i=e.server?u.ConnectionEnd.server:u.ConnectionEnd.client,s=e.sessionCache?u.createSessionCache(e.sessionCache):null,o={version:{major:u.Version.major,minor:u.Version.minor},entity:i,sessionId:e.sessionId,caStore:t,sessionCache:s,cipherSuites:r,connected:e.connected,virtualHost:e.virtualHost||null,verifyClient:e.verifyClient||!1,verify:e.verify||function(e,t,r,n){return t},verifyOptions:e.verifyOptions||{},getCertificate:e.getCertificate||null,getPrivateKey:e.getPrivateKey||null,getSignature:e.getSignature||null,input:n.util.createBuffer(),tlsData:n.util.createBuffer(),data:n.util.createBuffer(),tlsDataReady:e.tlsDataReady,dataReady:e.dataReady,heartbeatReceived:e.heartbeatReceived,closed:e.closed,error:function(t,r){r.origin=r.origin||(t.entity===u.ConnectionEnd.client?"client":"server"),r.send&&(u.queue(t,u.createAlert(t,r.alert)),u.flush(t));var n=!1!==r.fatal;n&&(t.fail=!0),e.error(t,r),n&&t.close(!1)},deflate:e.deflate||null,inflate:e.inflate||null,reset:function(e){o.version={major:u.Version.major,minor:u.Version.minor},o.record=null,o.session=null,o.peerCertificate=null,o.state={pending:null,current:null},o.expect=(o.entity,u.ConnectionEnd.client,0),o.fragmented=null,o.records=[],o.open=!1,o.handshakes=0,o.handshaking=!1,o.isConnected=!1,o.fail=!(e||void 0===e),o.input.clear(),o.tlsData.clear(),o.data.clear(),o.state.current=u.createConnectionState(o)}};o.reset();return o.handshake=function(e){if(o.entity!==u.ConnectionEnd.client)o.error(o,{message:"Cannot initiate handshake as a server.",fatal:!1});else if(o.handshaking)o.error(o,{message:"Handshake already in progress.",fatal:!1});else{o.fail&&!o.open&&0===o.handshakes&&(o.fail=!1),o.handshaking=!0;var t=null;(e=e||"").length>0&&(o.sessionCache&&(t=o.sessionCache.getSession(e)),null===t&&(e="")),0===e.length&&o.sessionCache&&null!==(t=o.sessionCache.getSession())&&(e=t.id),o.session={id:e,version:null,cipherSuite:null,compressionMethod:null,serverCertificate:null,certificateRequest:null,clientCertificate:null,sp:{},md5:n.md.md5.create(),sha1:n.md.sha1.create()},t&&(o.version=t.version,o.session.sp=t.sp),o.session.sp.client_random=u.createRandom().getBytes(),o.open=!0,u.queue(o,u.createRecord(o,{type:u.ContentType.handshake,data:u.createClientHello(o)})),u.flush(o)}},o.process=function(e){var t=0;return e&&o.input.putBytes(e),o.fail||(null!==o.record&&o.record.ready&&o.record.fragment.isEmpty()&&(o.record=null),null===o.record&&(t=function(e){var t=0,r=e.input,a=r.length();if(a<5)t=5-a;else{e.record={type:r.getByte(),version:{major:r.getByte(),minor:r.getByte()},length:r.getInt16(),fragment:n.util.createBuffer(),ready:!1};var i=e.record.version.major===e.version.major;i&&e.session&&e.session.version&&(i=e.record.version.minor===e.version.minor),i||e.error(e,{message:"Incompatible TLS version.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.protocol_version}})}return t}(o)),o.fail||null===o.record||o.record.ready||(t=function(e){var t=0,r=e.input,n=r.length();n8?3:1,v=[],m=[0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0],C=0,E=0;E>>4^T))<<4,S^=t=65535&((T^=t)>>>-16^S),S^=(t=858993459&(S>>>2^(T^=t<<-16)))<<2,S^=t=65535&((T^=t)>>>-16^S),S^=(t=1431655765&(S>>>1^(T^=t<<-16)))<<1,S^=t=16711935&((T^=t)>>>8^S),t=(S^=(t=1431655765&(S>>>1^(T^=t<<8)))<<1)<<8|(T^=t)>>>20&240,S=T<<24|T<<8&16711680|T>>>8&65280|T>>>24&240,T=t;for(var I=0;I>>26,T=T<<2|T>>>26):(S=S<<1|S>>>27,T=T<<1|T>>>27);var b=r[(S&=-15)>>>28]|n[S>>>24&15]|a[S>>>20&15]|i[S>>>16&15]|s[S>>>12&15]|o[S>>>8&15]|c[S>>>4&15],A=u[(T&=-15)>>>28]|l[T>>>24&15]|p[T>>>20&15]|f[T>>>16&15]|h[T>>>12&15]|d[T>>>8&15]|y[T>>>4&15];t=65535&(A>>>16^b),v[C++]=b^t,v[C++]=A^t<<16}}return v}(t),this._init=!0}},a("DES-ECB",n.cipher.modes.ecb),a("DES-CBC",n.cipher.modes.cbc),a("DES-CFB",n.cipher.modes.cfb),a("DES-OFB",n.cipher.modes.ofb),a("DES-CTR",n.cipher.modes.ctr),a("3DES-ECB",n.cipher.modes.ecb),a("3DES-CBC",n.cipher.modes.cbc),a("3DES-CFB",n.cipher.modes.cfb),a("3DES-OFB",n.cipher.modes.ofb),a("3DES-CTR",n.cipher.modes.ctr);var i=[16843776,0,65536,16843780,16842756,66564,4,65536,1024,16843776,16843780,1024,16778244,16842756,16777216,4,1028,16778240,16778240,66560,66560,16842752,16842752,16778244,65540,16777220,16777220,65540,0,1028,66564,16777216,65536,16843780,4,16842752,16843776,16777216,16777216,1024,16842756,65536,66560,16777220,1024,4,16778244,66564,16843780,65540,16842752,16778244,16777220,1028,66564,16843776,1028,16778240,16778240,0,65540,66560,0,16842756],s=[-2146402272,-2147450880,32768,1081376,1048576,32,-2146435040,-2147450848,-2147483616,-2146402272,-2146402304,-2147483648,-2147450880,1048576,32,-2146435040,1081344,1048608,-2147450848,0,-2147483648,32768,1081376,-2146435072,1048608,-2147483616,0,1081344,32800,-2146402304,-2146435072,32800,0,1081376,-2146435040,1048576,-2147450848,-2146435072,-2146402304,32768,-2146435072,-2147450880,32,-2146402272,1081376,32,32768,-2147483648,32800,-2146402304,1048576,-2147483616,1048608,-2147450848,-2147483616,1048608,1081344,0,-2147450880,32800,-2147483648,-2146435040,-2146402272,1081344],o=[520,134349312,0,134348808,134218240,0,131592,134218240,131080,134217736,134217736,131072,134349320,131080,134348800,520,134217728,8,134349312,512,131584,134348800,134348808,131592,134218248,131584,131072,134218248,8,134349320,512,134217728,134349312,134217728,131080,520,131072,134349312,134218240,0,512,131080,134349320,134218240,134217736,512,0,134348808,134218248,131072,134217728,134349320,8,131592,131584,134217736,134348800,134218248,520,134348800,131592,8,134348808,131584],c=[8396801,8321,8321,128,8396928,8388737,8388609,8193,0,8396800,8396800,8396929,129,0,8388736,8388609,1,8192,8388608,8396801,128,8388608,8193,8320,8388737,1,8320,8388736,8192,8396928,8396929,129,8388736,8388609,8396800,8396929,129,0,0,8396800,8320,8388736,8388737,1,8396801,8321,8321,128,8396929,129,1,8192,8388609,8193,8396928,8388737,8193,8320,8388608,8396801,128,8388608,8192,8396928],u=[256,34078976,34078720,1107296512,524288,256,1073741824,34078720,1074266368,524288,33554688,1074266368,1107296512,1107820544,524544,1073741824,33554432,1074266112,1074266112,0,1073742080,1107820800,1107820800,33554688,1107820544,1073742080,0,1107296256,34078976,33554432,1107296256,524544,524288,1107296512,256,33554432,1073741824,34078720,1107296512,1074266368,33554688,1073741824,1107820544,34078976,1074266368,256,33554432,1107820544,1107820800,524544,1107296256,1107820800,34078720,0,1074266112,1107296256,524544,33554688,1073742080,524288,0,1074266112,34078976,1073742080],l=[536870928,541065216,16384,541081616,541065216,16,541081616,4194304,536887296,4210704,4194304,536870928,4194320,536887296,536870912,16400,0,4194320,536887312,16384,4210688,536887312,16,541065232,541065232,0,4210704,541081600,16400,4210688,541081600,536870912,536887296,16,541065232,4210688,541081616,4194304,16400,536870928,4194304,536887296,536870912,16400,536870928,541081616,4210688,541065216,4210704,541081600,0,541065232,16,16384,541065216,4210704,16384,4194320,536887312,0,541081600,536870912,4194320,536887312],p=[2097152,69206018,67110914,0,2048,67110914,2099202,69208064,69208066,2097152,0,67108866,2,67108864,69206018,2050,67110912,2099202,2097154,67110912,67108866,69206016,69208064,2097154,69206016,2048,2050,69208066,2099200,2,67108864,2099200,67108864,2099200,2097152,67110914,67110914,69206018,69206018,2,2097154,67108864,67110912,2097152,69208064,2050,2099202,69208064,2050,67108866,69208066,69206016,2099200,0,2,69208066,0,2099202,69206016,2048,67108866,67110912,2048,2097154],f=[268439616,4096,262144,268701760,268435456,268439616,64,268435456,262208,268697600,268701760,266240,268701696,266304,4096,64,268697600,268435520,268439552,4160,266240,262208,268697664,268701696,4160,0,0,268697664,268435520,268439552,266304,262144,266304,262144,268701696,4096,64,268697664,4096,266304,268439552,64,268435520,268697600,268697664,268435456,262144,268439616,0,268701760,262208,268435520,268697600,268439552,268439616,0,268701760,266240,266240,4160,4160,262208,268435456,268701696];function h(e,t,r,n){var a,h,d=32===e.length?3:9;a=3===d?n?[30,-2,-2]:[0,32,2]:n?[94,62,-2,32,64,2,30,-2,-2]:[0,32,2,62,30,-2,64,96,2];var y=t[0],g=t[1];y^=(h=252645135&(y>>>4^g))<<4,y^=(h=65535&(y>>>16^(g^=h)))<<16,y^=h=858993459&((g^=h)>>>2^y),y^=h=16711935&((g^=h<<2)>>>8^y),y=(y^=(h=1431655765&(y>>>1^(g^=h<<8)))<<1)<<1|y>>>31,g=(g^=h)<<1|g>>>31;for(var v=0;v>>4|g<<28)^e[E+1];h=y,y=g,g=h^(s[S>>>24&63]|c[S>>>16&63]|l[S>>>8&63]|f[63&S]|i[T>>>24&63]|o[T>>>16&63]|u[T>>>8&63]|p[63&T])}h=y,y=g,g=h}g=g>>>1|g<<31,g^=h=1431655765&((y=y>>>1|y<<31)>>>1^g),g^=(h=16711935&(g>>>8^(y^=h<<1)))<<8,g^=(h=858993459&(g>>>2^(y^=h)))<<2,g^=h=65535&((y^=h)>>>16^g),g^=h=252645135&((y^=h<<16)>>>4^g),y^=h<<4,r[0]=y,r[1]=g}function d(e){var t,r="DES-"+((e=e||{}).mode||"CBC").toUpperCase(),a=(t=e.decrypt?n.cipher.createDecipher(r,e.key):n.cipher.createCipher(r,e.key)).start;return t.start=function(e,r){var i=null;r instanceof n.util.ByteBuffer&&(i=r,r={}),(r=r||{}).output=i,r.iv=e,a.call(t,r)},t}},function(e,t,r){var n=r(0);if(r(3),r(13),r(6),r(26),r(27),r(2),r(1),void 0===a)var a=n.jsbn.BigInteger;var i=n.util.isNodejs?r(17):null,s=n.asn1,o=n.util;n.pki=n.pki||{},e.exports=n.pki.rsa=n.rsa=n.rsa||{};var c=n.pki,u=[6,4,2,4,2,4,6,2],l={name:"PrivateKeyInfo",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"PrivateKeyInfo.version",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyVersion"},{name:"PrivateKeyInfo.privateKeyAlgorithm",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"AlgorithmIdentifier.algorithm",tagClass:s.Class.UNIVERSAL,type:s.Type.OID,constructed:!1,capture:"privateKeyOid"}]},{name:"PrivateKeyInfo",tagClass:s.Class.UNIVERSAL,type:s.Type.OCTETSTRING,constructed:!1,capture:"privateKey"}]},p={name:"RSAPrivateKey",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"RSAPrivateKey.version",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyVersion"},{name:"RSAPrivateKey.modulus",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyModulus"},{name:"RSAPrivateKey.publicExponent",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyPublicExponent"},{name:"RSAPrivateKey.privateExponent",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyPrivateExponent"},{name:"RSAPrivateKey.prime1",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyPrime1"},{name:"RSAPrivateKey.prime2",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyPrime2"},{name:"RSAPrivateKey.exponent1",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyExponent1"},{name:"RSAPrivateKey.exponent2",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyExponent2"},{name:"RSAPrivateKey.coefficient",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyCoefficient"}]},f={name:"RSAPublicKey",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"RSAPublicKey.modulus",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"publicKeyModulus"},{name:"RSAPublicKey.exponent",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"publicKeyExponent"}]},h=n.pki.rsa.publicKeyValidator={name:"SubjectPublicKeyInfo",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,captureAsn1:"subjectPublicKeyInfo",value:[{name:"SubjectPublicKeyInfo.AlgorithmIdentifier",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"AlgorithmIdentifier.algorithm",tagClass:s.Class.UNIVERSAL,type:s.Type.OID,constructed:!1,capture:"publicKeyOid"}]},{name:"SubjectPublicKeyInfo.subjectPublicKey",tagClass:s.Class.UNIVERSAL,type:s.Type.BITSTRING,constructed:!1,value:[{name:"SubjectPublicKeyInfo.subjectPublicKey.RSAPublicKey",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,optional:!0,captureAsn1:"rsaPublicKey"}]}]},d={name:"DigestInfo",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"DigestInfo.DigestAlgorithm",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"DigestInfo.DigestAlgorithm.algorithmIdentifier",tagClass:s.Class.UNIVERSAL,type:s.Type.OID,constructed:!1,capture:"algorithmIdentifier"},{name:"DigestInfo.DigestAlgorithm.parameters",tagClass:s.Class.UNIVERSAL,type:s.Type.NULL,capture:"parameters",optional:!0,constructed:!1}]},{name:"DigestInfo.digest",tagClass:s.Class.UNIVERSAL,type:s.Type.OCTETSTRING,constructed:!1,capture:"digest"}]},y=function(e){var t;if(!(e.algorithm in c.oids)){var r=new Error("Unknown message digest algorithm.");throw r.algorithm=e.algorithm,r}t=c.oids[e.algorithm];var n=s.oidToDer(t).getBytes(),a=s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[]),i=s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[]);i.value.push(s.create(s.Class.UNIVERSAL,s.Type.OID,!1,n)),i.value.push(s.create(s.Class.UNIVERSAL,s.Type.NULL,!1,""));var o=s.create(s.Class.UNIVERSAL,s.Type.OCTETSTRING,!1,e.digest().getBytes());return a.value.push(i),a.value.push(o),s.toDer(a).getBytes()},g=function(e,t,r){if(r)return e.modPow(t.e,t.n);if(!t.p||!t.q)return e.modPow(t.d,t.n);var i;t.dP||(t.dP=t.d.mod(t.p.subtract(a.ONE))),t.dQ||(t.dQ=t.d.mod(t.q.subtract(a.ONE))),t.qInv||(t.qInv=t.q.modInverse(t.p));do{i=new a(n.util.bytesToHex(n.random.getBytes(t.n.bitLength()/8)),16)}while(i.compareTo(t.n)>=0||!i.gcd(t.n).equals(a.ONE));for(var s=(e=e.multiply(i.modPow(t.e,t.n)).mod(t.n)).mod(t.p).modPow(t.dP,t.p),o=e.mod(t.q).modPow(t.dQ,t.q);s.compareTo(o)<0;)s=s.add(t.p);var c=s.subtract(o).multiply(t.qInv).mod(t.p).multiply(t.q).add(o);return c=c.multiply(i.modInverse(t.n)).mod(t.n)};function v(e,t,r){var a=n.util.createBuffer(),i=Math.ceil(t.n.bitLength()/8);if(e.length>i-11){var s=new Error("Message is too long for PKCS#1 v1.5 padding.");throw s.length=e.length,s.max=i-11,s}a.putByte(0),a.putByte(r);var o,c=i-3-e.length;if(0===r||1===r){o=0===r?0:255;for(var u=0;u0;){var l=0,p=n.random.getBytes(c);for(u=0;u1;){if(255!==s.getByte()){--s.read;break}++u}else if(2===c)for(u=0;s.length()>1;){if(0===s.getByte()){--s.read;break}++u}if(0!==s.getByte()||u!==i-3-s.length())throw new Error("Encryption block is invalid.");return s.getBytes()}function C(e,t,r){"function"==typeof t&&(r=t,t={});var i={algorithm:{name:(t=t||{}).algorithm||"PRIMEINC",options:{workers:t.workers||2,workLoad:t.workLoad||100,workerScript:t.workerScript}}};function s(){o(e.pBits,(function(t,n){return t?r(t):(e.p=n,null!==e.q?u(t,e.q):void o(e.qBits,u))}))}function o(e,t){n.prime.generateProbablePrime(e,i,t)}function u(t,n){if(t)return r(t);if(e.q=n,e.p.compareTo(e.q)<0){var i=e.p;e.p=e.q,e.q=i}if(0!==e.p.subtract(a.ONE).gcd(e.e).compareTo(a.ONE))return e.p=null,void s();if(0!==e.q.subtract(a.ONE).gcd(e.e).compareTo(a.ONE))return e.q=null,void o(e.qBits,u);if(e.p1=e.p.subtract(a.ONE),e.q1=e.q.subtract(a.ONE),e.phi=e.p1.multiply(e.q1),0!==e.phi.gcd(e.e).compareTo(a.ONE))return e.p=e.q=null,void s();if(e.n=e.p.multiply(e.q),e.n.bitLength()!==e.bits)return e.q=null,void o(e.qBits,u);var l=e.e.modInverse(e.phi);e.keys={privateKey:c.rsa.setPrivateKey(e.n,e.e,l,e.p,e.q,l.mod(e.p1),l.mod(e.q1),e.q.modInverse(e.p)),publicKey:c.rsa.setPublicKey(e.n,e.e)},r(null,e.keys)}"prng"in t&&(i.prng=t.prng),s()}function E(e){var t=e.toString(16);t[0]>="8"&&(t="00"+t);var r=n.util.hexToBytes(t);return r.length>1&&(0===r.charCodeAt(0)&&0==(128&r.charCodeAt(1))||255===r.charCodeAt(0)&&128==(128&r.charCodeAt(1)))?r.substr(1):r}function S(e){return e<=100?27:e<=150?18:e<=200?15:e<=250?12:e<=300?9:e<=350?8:e<=400?7:e<=500?6:e<=600?5:e<=800?4:e<=1250?3:2}function T(e){return n.util.isNodejs&&"function"==typeof i[e]}function I(e){return void 0!==o.globalScope&&"object"==typeof o.globalScope.crypto&&"object"==typeof o.globalScope.crypto.subtle&&"function"==typeof o.globalScope.crypto.subtle[e]}function b(e){return void 0!==o.globalScope&&"object"==typeof o.globalScope.msCrypto&&"object"==typeof o.globalScope.msCrypto.subtle&&"function"==typeof o.globalScope.msCrypto.subtle[e]}function A(e){for(var t=n.util.hexToBytes(e.toString(16)),r=new Uint8Array(t.length),a=0;a0;)l.putByte(0),--p;return l.putBytes(n.util.hexToBytes(u)),l.getBytes()},c.rsa.decrypt=function(e,t,r,i){var s=Math.ceil(t.n.bitLength()/8);if(e.length!==s){var o=new Error("Encrypted message length is invalid.");throw o.length=e.length,o.expected=s,o}var c=new a(n.util.createBuffer(e).toHex(),16);if(c.compareTo(t.n)>=0)throw new Error("Encrypted message is invalid.");for(var u=g(c,t,r).toString(16),l=n.util.createBuffer(),p=s-Math.ceil(u.length/2);p>0;)l.putByte(0),--p;return l.putBytes(n.util.hexToBytes(u)),!1!==i?m(l.getBytes(),t,r):l.getBytes()},c.rsa.createKeyPairGenerationState=function(e,t,r){"string"==typeof e&&(e=parseInt(e,10)),e=e||2048;var i,s=(r=r||{}).prng||n.random,o={nextBytes:function(e){for(var t=s.getBytesSync(e.length),r=0;r>1,pBits:e-(e>>1),pqState:0,num:null,keys:null}).e.fromInt(i.eInt),i},c.rsa.stepKeyPairGenerationState=function(e,t){"algorithm"in e||(e.algorithm="PRIMEINC");var r=new a(null);r.fromInt(30);for(var n,i=0,s=function(e,t){return e|t},o=+new Date,l=0;null===e.keys&&(t<=0||lp?e.pqState=0:e.num.isProbablePrime(S(e.num.bitLength()))?++e.pqState:e.num.dAddOffset(u[i++%8],0):2===e.pqState?e.pqState=0===e.num.subtract(a.ONE).gcd(e.e).compareTo(a.ONE)?3:0:3===e.pqState&&(e.pqState=0,null===e.p?e.p=e.num:e.q=e.num,null!==e.p&&null!==e.q&&++e.state,e.num=null)}else if(1===e.state)e.p.compareTo(e.q)<0&&(e.num=e.p,e.p=e.q,e.q=e.num),++e.state;else if(2===e.state)e.p1=e.p.subtract(a.ONE),e.q1=e.q.subtract(a.ONE),e.phi=e.p1.multiply(e.q1),++e.state;else if(3===e.state)0===e.phi.gcd(e.e).compareTo(a.ONE)?++e.state:(e.p=null,e.q=null,e.state=0);else if(4===e.state)e.n=e.p.multiply(e.q),e.n.bitLength()===e.bits?++e.state:(e.q=null,e.state=0);else if(5===e.state){var h=e.e.modInverse(e.phi);e.keys={privateKey:c.rsa.setPrivateKey(e.n,e.e,h,e.p,e.q,h.mod(e.p1),h.mod(e.q1),e.q.modInverse(e.p)),publicKey:c.rsa.setPublicKey(e.n,e.e)}}l+=(n=+new Date)-o,o=n}return null!==e.keys},c.rsa.generateKeyPair=function(e,t,r,a){if(1===arguments.length?"object"==typeof e?(r=e,e=void 0):"function"==typeof e&&(a=e,e=void 0):2===arguments.length?"number"==typeof e?"function"==typeof t?(a=t,t=void 0):"number"!=typeof t&&(r=t,t=void 0):(r=e,a=t,e=void 0,t=void 0):3===arguments.length&&("number"==typeof t?"function"==typeof r&&(a=r,r=void 0):(a=r,r=t,t=void 0)),r=r||{},void 0===e&&(e=r.bits||2048),void 0===t&&(t=r.e||65537),!n.options.usePureJavaScript&&!r.prng&&e>=256&&e<=16384&&(65537===t||3===t))if(a){if(T("generateKeyPair"))return i.generateKeyPair("rsa",{modulusLength:e,publicExponent:t,publicKeyEncoding:{type:"spki",format:"pem"},privateKeyEncoding:{type:"pkcs8",format:"pem"}},(function(e,t,r){if(e)return a(e);a(null,{privateKey:c.privateKeyFromPem(r),publicKey:c.publicKeyFromPem(t)})}));if(I("generateKey")&&I("exportKey"))return o.globalScope.crypto.subtle.generateKey({name:"RSASSA-PKCS1-v1_5",modulusLength:e,publicExponent:A(t),hash:{name:"SHA-256"}},!0,["sign","verify"]).then((function(e){return o.globalScope.crypto.subtle.exportKey("pkcs8",e.privateKey)})).then(void 0,(function(e){a(e)})).then((function(e){if(e){var t=c.privateKeyFromAsn1(s.fromDer(n.util.createBuffer(e)));a(null,{privateKey:t,publicKey:c.setRsaPublicKey(t.n,t.e)})}}));if(b("generateKey")&&b("exportKey")){var u=o.globalScope.msCrypto.subtle.generateKey({name:"RSASSA-PKCS1-v1_5",modulusLength:e,publicExponent:A(t),hash:{name:"SHA-256"}},!0,["sign","verify"]);return u.oncomplete=function(e){var t=e.target.result,r=o.globalScope.msCrypto.subtle.exportKey("pkcs8",t.privateKey);r.oncomplete=function(e){var t=e.target.result,r=c.privateKeyFromAsn1(s.fromDer(n.util.createBuffer(t)));a(null,{privateKey:r,publicKey:c.setRsaPublicKey(r.n,r.e)})},r.onerror=function(e){a(e)}},void(u.onerror=function(e){a(e)})}}else if(T("generateKeyPairSync")){var l=i.generateKeyPairSync("rsa",{modulusLength:e,publicExponent:t,publicKeyEncoding:{type:"spki",format:"pem"},privateKeyEncoding:{type:"pkcs8",format:"pem"}});return{privateKey:c.privateKeyFromPem(l.privateKey),publicKey:c.publicKeyFromPem(l.publicKey)}}var p=c.rsa.createKeyPairGenerationState(e,t,r);if(!a)return c.rsa.stepKeyPairGenerationState(p,0),p.keys;C(p,r,a)},c.setRsaPublicKey=c.rsa.setPublicKey=function(e,t){var r={n:e,e:t,encrypt:function(e,t,a){if("string"==typeof t?t=t.toUpperCase():void 0===t&&(t="RSAES-PKCS1-V1_5"),"RSAES-PKCS1-V1_5"===t)t={encode:function(e,t,r){return v(e,t,2).getBytes()}};else if("RSA-OAEP"===t||"RSAES-OAEP"===t)t={encode:function(e,t){return n.pkcs1.encode_rsa_oaep(t,e,a)}};else if(-1!==["RAW","NONE","NULL",null].indexOf(t))t={encode:function(e){return e}};else if("string"==typeof t)throw new Error('Unsupported encryption scheme: "'+t+'".');var i=t.encode(e,r,!0);return c.rsa.encrypt(i,r,!0)},verify:function(e,t,a,i){"string"==typeof a?a=a.toUpperCase():void 0===a&&(a="RSASSA-PKCS1-V1_5"),void 0===i&&(i={_parseAllDigestBytes:!0}),"_parseAllDigestBytes"in i||(i._parseAllDigestBytes=!0),"RSASSA-PKCS1-V1_5"===a?a={verify:function(e,t){t=m(t,r,!0);var a=s.fromDer(t,{parseAllBytes:i._parseAllDigestBytes}),o={},c=[];if(!s.validate(a,d,o,c))throw(u=new Error("ASN.1 object does not contain a valid RSASSA-PKCS1-v1_5 DigestInfo value.")).errors=c,u;var u,l=s.derToOid(o.algorithmIdentifier);if(l!==n.oids.md2&&l!==n.oids.md5&&l!==n.oids.sha1&&l!==n.oids.sha224&&l!==n.oids.sha256&&l!==n.oids.sha384&&l!==n.oids.sha512&&l!==n.oids["sha512-224"]&&l!==n.oids["sha512-256"])throw(u=new Error("Unknown RSASSA-PKCS1-v1_5 DigestAlgorithm identifier.")).oid=l,u;if((l===n.oids.md2||l===n.oids.md5)&&!("parameters"in o))throw new Error("ASN.1 object does not contain a valid RSASSA-PKCS1-v1_5 DigestInfo value. Missing algorithm identifer NULL parameters.");return e===o.digest}}:"NONE"!==a&&"NULL"!==a&&null!==a||(a={verify:function(e,t){return e===(t=m(t,r,!0))}});var o=c.rsa.decrypt(t,r,!0,!1);return a.verify(e,o,r.n.bitLength())}};return r},c.setRsaPrivateKey=c.rsa.setPrivateKey=function(e,t,r,a,i,s,o,u){var l={n:e,e:t,d:r,p:a,q:i,dP:s,dQ:o,qInv:u,decrypt:function(e,t,r){"string"==typeof t?t=t.toUpperCase():void 0===t&&(t="RSAES-PKCS1-V1_5");var a=c.rsa.decrypt(e,l,!1,!1);if("RSAES-PKCS1-V1_5"===t)t={decode:m};else if("RSA-OAEP"===t||"RSAES-OAEP"===t)t={decode:function(e,t){return n.pkcs1.decode_rsa_oaep(t,e,r)}};else{if(-1===["RAW","NONE","NULL",null].indexOf(t))throw new Error('Unsupported encryption scheme: "'+t+'".');t={decode:function(e){return e}}}return t.decode(a,l,!1)},sign:function(e,t){var r=!1;"string"==typeof t&&(t=t.toUpperCase()),void 0===t||"RSASSA-PKCS1-V1_5"===t?(t={encode:y},r=1):"NONE"!==t&&"NULL"!==t&&null!==t||(t={encode:function(){return e}},r=1);var n=t.encode(e,l.n.bitLength());return c.rsa.encrypt(n,l,r)}};return l},c.wrapRsaPrivateKey=function(e){return s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,s.integerToDer(0).getBytes()),s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.OID,!1,s.oidToDer(c.oids.rsaEncryption).getBytes()),s.create(s.Class.UNIVERSAL,s.Type.NULL,!1,"")]),s.create(s.Class.UNIVERSAL,s.Type.OCTETSTRING,!1,s.toDer(e).getBytes())])},c.privateKeyFromAsn1=function(e){var t,r,i,o,u,f,h,d,y={},g=[];if(s.validate(e,l,y,g)&&(e=s.fromDer(n.util.createBuffer(y.privateKey))),y={},g=[],!s.validate(e,p,y,g)){var v=new Error("Cannot read private key. ASN.1 object does not contain an RSAPrivateKey.");throw v.errors=g,v}return t=n.util.createBuffer(y.privateKeyModulus).toHex(),r=n.util.createBuffer(y.privateKeyPublicExponent).toHex(),i=n.util.createBuffer(y.privateKeyPrivateExponent).toHex(),o=n.util.createBuffer(y.privateKeyPrime1).toHex(),u=n.util.createBuffer(y.privateKeyPrime2).toHex(),f=n.util.createBuffer(y.privateKeyExponent1).toHex(),h=n.util.createBuffer(y.privateKeyExponent2).toHex(),d=n.util.createBuffer(y.privateKeyCoefficient).toHex(),c.setRsaPrivateKey(new a(t,16),new a(r,16),new a(i,16),new a(o,16),new a(u,16),new a(f,16),new a(h,16),new a(d,16))},c.privateKeyToAsn1=c.privateKeyToRSAPrivateKey=function(e){return s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,s.integerToDer(0).getBytes()),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.n)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.e)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.d)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.p)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.q)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.dP)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.dQ)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.qInv))])},c.publicKeyFromAsn1=function(e){var t={},r=[];if(s.validate(e,h,t,r)){var i,o=s.derToOid(t.publicKeyOid);if(o!==c.oids.rsaEncryption)throw(i=new Error("Cannot read public key. Unknown OID.")).oid=o,i;e=t.rsaPublicKey}if(r=[],!s.validate(e,f,t,r))throw(i=new Error("Cannot read public key. ASN.1 object does not contain an RSAPublicKey.")).errors=r,i;var u=n.util.createBuffer(t.publicKeyModulus).toHex(),l=n.util.createBuffer(t.publicKeyExponent).toHex();return c.setRsaPublicKey(new a(u,16),new a(l,16))},c.publicKeyToAsn1=c.publicKeyToSubjectPublicKeyInfo=function(e){return s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.OID,!1,s.oidToDer(c.oids.rsaEncryption).getBytes()),s.create(s.Class.UNIVERSAL,s.Type.NULL,!1,"")]),s.create(s.Class.UNIVERSAL,s.Type.BITSTRING,!1,[c.publicKeyToRSAPublicKey(e)])])},c.publicKeyToRSAPublicKey=function(e){return s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.n)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.e))])}},function(e,t,r){var n,a=r(0);e.exports=a.jsbn=a.jsbn||{};function i(e,t,r){this.data=[],null!=e&&("number"==typeof e?this.fromNumber(e,t,r):null==t&&"string"!=typeof e?this.fromString(e,256):this.fromString(e,t))}function s(){return new i(null)}function o(e,t,r,n,a,i){for(var s=16383&t,o=t>>14;--i>=0;){var c=16383&this.data[e],u=this.data[e++]>>14,l=o*c+u*s;a=((c=s*c+((16383&l)<<14)+r.data[n]+a)>>28)+(l>>14)+o*u,r.data[n++]=268435455&c}return a}a.jsbn.BigInteger=i,"undefined"==typeof navigator?(i.prototype.am=o,n=28):"Microsoft Internet Explorer"==navigator.appName?(i.prototype.am=function(e,t,r,n,a,i){for(var s=32767&t,o=t>>15;--i>=0;){var c=32767&this.data[e],u=this.data[e++]>>15,l=o*c+u*s;a=((c=s*c+((32767&l)<<15)+r.data[n]+(1073741823&a))>>>30)+(l>>>15)+o*u+(a>>>30),r.data[n++]=1073741823&c}return a},n=30):"Netscape"!=navigator.appName?(i.prototype.am=function(e,t,r,n,a,i){for(;--i>=0;){var s=t*this.data[e++]+r.data[n]+a;a=Math.floor(s/67108864),r.data[n++]=67108863&s}return a},n=26):(i.prototype.am=o,n=28),i.prototype.DB=n,i.prototype.DM=(1<>>16)&&(e=t,r+=16),0!=(t=e>>8)&&(e=t,r+=8),0!=(t=e>>4)&&(e=t,r+=4),0!=(t=e>>2)&&(e=t,r+=2),0!=(t=e>>1)&&(e=t,r+=1),r}function y(e){this.m=e}function g(e){this.m=e,this.mp=e.invDigit(),this.mpl=32767&this.mp,this.mph=this.mp>>15,this.um=(1<>=16,t+=16),0==(255&e)&&(e>>=8,t+=8),0==(15&e)&&(e>>=4,t+=4),0==(3&e)&&(e>>=2,t+=2),0==(1&e)&&++t,t}function T(e){for(var t=0;0!=e;)e&=e-1,++t;return t}function I(){}function b(e){return e}function A(e){this.r2=s(),this.q3=s(),i.ONE.dlShiftTo(2*e.t,this.r2),this.mu=this.r2.divide(e),this.m=e}y.prototype.convert=function(e){return e.s<0||e.compareTo(this.m)>=0?e.mod(this.m):e},y.prototype.revert=function(e){return e},y.prototype.reduce=function(e){e.divRemTo(this.m,null,e)},y.prototype.mulTo=function(e,t,r){e.multiplyTo(t,r),this.reduce(r)},y.prototype.sqrTo=function(e,t){e.squareTo(t),this.reduce(t)},g.prototype.convert=function(e){var t=s();return e.abs().dlShiftTo(this.m.t,t),t.divRemTo(this.m,null,t),e.s<0&&t.compareTo(i.ZERO)>0&&this.m.subTo(t,t),t},g.prototype.revert=function(e){var t=s();return e.copyTo(t),this.reduce(t),t},g.prototype.reduce=function(e){for(;e.t<=this.mt2;)e.data[e.t++]=0;for(var t=0;t>15)*this.mpl&this.um)<<15)&e.DM;for(r=t+this.m.t,e.data[r]+=this.m.am(0,n,e,t,0,this.m.t);e.data[r]>=e.DV;)e.data[r]-=e.DV,e.data[++r]++}e.clamp(),e.drShiftTo(this.m.t,e),e.compareTo(this.m)>=0&&e.subTo(this.m,e)},g.prototype.mulTo=function(e,t,r){e.multiplyTo(t,r),this.reduce(r)},g.prototype.sqrTo=function(e,t){e.squareTo(t),this.reduce(t)},i.prototype.copyTo=function(e){for(var t=this.t-1;t>=0;--t)e.data[t]=this.data[t];e.t=this.t,e.s=this.s},i.prototype.fromInt=function(e){this.t=1,this.s=e<0?-1:0,e>0?this.data[0]=e:e<-1?this.data[0]=e+this.DV:this.t=0},i.prototype.fromString=function(e,t){var r;if(16==t)r=4;else if(8==t)r=3;else if(256==t)r=8;else if(2==t)r=1;else if(32==t)r=5;else{if(4!=t)return void this.fromRadix(e,t);r=2}this.t=0,this.s=0;for(var n=e.length,a=!1,s=0;--n>=0;){var o=8==r?255&e[n]:f(e,n);o<0?"-"==e.charAt(n)&&(a=!0):(a=!1,0==s?this.data[this.t++]=o:s+r>this.DB?(this.data[this.t-1]|=(o&(1<>this.DB-s):this.data[this.t-1]|=o<=this.DB&&(s-=this.DB))}8==r&&0!=(128&e[0])&&(this.s=-1,s>0&&(this.data[this.t-1]|=(1<0&&this.data[this.t-1]==e;)--this.t},i.prototype.dlShiftTo=function(e,t){var r;for(r=this.t-1;r>=0;--r)t.data[r+e]=this.data[r];for(r=e-1;r>=0;--r)t.data[r]=0;t.t=this.t+e,t.s=this.s},i.prototype.drShiftTo=function(e,t){for(var r=e;r=0;--r)t.data[r+s+1]=this.data[r]>>a|o,o=(this.data[r]&i)<=0;--r)t.data[r]=0;t.data[s]=o,t.t=this.t+s+1,t.s=this.s,t.clamp()},i.prototype.rShiftTo=function(e,t){t.s=this.s;var r=Math.floor(e/this.DB);if(r>=this.t)t.t=0;else{var n=e%this.DB,a=this.DB-n,i=(1<>n;for(var s=r+1;s>n;n>0&&(t.data[this.t-r-1]|=(this.s&i)<>=this.DB;if(e.t>=this.DB;n+=this.s}else{for(n+=this.s;r>=this.DB;n-=e.s}t.s=n<0?-1:0,n<-1?t.data[r++]=this.DV+n:n>0&&(t.data[r++]=n),t.t=r,t.clamp()},i.prototype.multiplyTo=function(e,t){var r=this.abs(),n=e.abs(),a=r.t;for(t.t=a+n.t;--a>=0;)t.data[a]=0;for(a=0;a=0;)e.data[r]=0;for(r=0;r=t.DV&&(e.data[r+t.t]-=t.DV,e.data[r+t.t+1]=1)}e.t>0&&(e.data[e.t-1]+=t.am(r,t.data[r],e,2*r,0,1)),e.s=0,e.clamp()},i.prototype.divRemTo=function(e,t,r){var n=e.abs();if(!(n.t<=0)){var a=this.abs();if(a.t0?(n.lShiftTo(l,o),a.lShiftTo(l,r)):(n.copyTo(o),a.copyTo(r));var p=o.t,f=o.data[p-1];if(0!=f){var h=f*(1<1?o.data[p-2]>>this.F2:0),y=this.FV/h,g=(1<=0&&(r.data[r.t++]=1,r.subTo(E,r)),i.ONE.dlShiftTo(p,E),E.subTo(o,o);o.t=0;){var S=r.data[--m]==f?this.DM:Math.floor(r.data[m]*y+(r.data[m-1]+v)*g);if((r.data[m]+=o.am(0,S,r,C,0,p))0&&r.rShiftTo(l,r),c<0&&i.ZERO.subTo(r,r)}}},i.prototype.invDigit=function(){if(this.t<1)return 0;var e=this.data[0];if(0==(1&e))return 0;var t=3&e;return(t=(t=(t=(t=t*(2-(15&e)*t)&15)*(2-(255&e)*t)&255)*(2-((65535&e)*t&65535))&65535)*(2-e*t%this.DV)%this.DV)>0?this.DV-t:-t},i.prototype.isEven=function(){return 0==(this.t>0?1&this.data[0]:this.s)},i.prototype.exp=function(e,t){if(e>4294967295||e<1)return i.ONE;var r=s(),n=s(),a=t.convert(this),o=d(e)-1;for(a.copyTo(r);--o>=0;)if(t.sqrTo(r,n),(e&1<0)t.mulTo(n,a,r);else{var c=r;r=n,n=c}return t.revert(r)},i.prototype.toString=function(e){if(this.s<0)return"-"+this.negate().toString(e);var t;if(16==e)t=4;else if(8==e)t=3;else if(2==e)t=1;else if(32==e)t=5;else{if(4!=e)return this.toRadix(e);t=2}var r,n=(1<0)for(o>o)>0&&(a=!0,i=p(r));s>=0;)o>(o+=this.DB-t)):(r=this.data[s]>>(o-=t)&n,o<=0&&(o+=this.DB,--s)),r>0&&(a=!0),a&&(i+=p(r));return a?i:"0"},i.prototype.negate=function(){var e=s();return i.ZERO.subTo(this,e),e},i.prototype.abs=function(){return this.s<0?this.negate():this},i.prototype.compareTo=function(e){var t=this.s-e.s;if(0!=t)return t;var r=this.t;if(0!=(t=r-e.t))return this.s<0?-t:t;for(;--r>=0;)if(0!=(t=this.data[r]-e.data[r]))return t;return 0},i.prototype.bitLength=function(){return this.t<=0?0:this.DB*(this.t-1)+d(this.data[this.t-1]^this.s&this.DM)},i.prototype.mod=function(e){var t=s();return this.abs().divRemTo(e,null,t),this.s<0&&t.compareTo(i.ZERO)>0&&e.subTo(t,t),t},i.prototype.modPowInt=function(e,t){var r;return r=e<256||t.isEven()?new y(t):new g(t),this.exp(e,r)},i.ZERO=h(0),i.ONE=h(1),I.prototype.convert=b,I.prototype.revert=b,I.prototype.mulTo=function(e,t,r){e.multiplyTo(t,r)},I.prototype.sqrTo=function(e,t){e.squareTo(t)},A.prototype.convert=function(e){if(e.s<0||e.t>2*this.m.t)return e.mod(this.m);if(e.compareTo(this.m)<0)return e;var t=s();return e.copyTo(t),this.reduce(t),t},A.prototype.revert=function(e){return e},A.prototype.reduce=function(e){for(e.drShiftTo(this.m.t-1,this.r2),e.t>this.m.t+1&&(e.t=this.m.t+1,e.clamp()),this.mu.multiplyUpperTo(this.r2,this.m.t+1,this.q3),this.m.multiplyLowerTo(this.q3,this.m.t+1,this.r2);e.compareTo(this.r2)<0;)e.dAddOffset(1,this.m.t+1);for(e.subTo(this.r2,e);e.compareTo(this.m)>=0;)e.subTo(this.m,e)},A.prototype.mulTo=function(e,t,r){e.multiplyTo(t,r),this.reduce(r)},A.prototype.sqrTo=function(e,t){e.squareTo(t),this.reduce(t)};var B=[2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509],N=(1<<26)/B[B.length-1];i.prototype.chunkSize=function(e){return Math.floor(Math.LN2*this.DB/Math.log(e))},i.prototype.toRadix=function(e){if(null==e&&(e=10),0==this.signum()||e<2||e>36)return"0";var t=this.chunkSize(e),r=Math.pow(e,t),n=h(r),a=s(),i=s(),o="";for(this.divRemTo(n,a,i);a.signum()>0;)o=(r+i.intValue()).toString(e).substr(1)+o,a.divRemTo(n,a,i);return i.intValue().toString(e)+o},i.prototype.fromRadix=function(e,t){this.fromInt(0),null==t&&(t=10);for(var r=this.chunkSize(t),n=Math.pow(t,r),a=!1,s=0,o=0,c=0;c=r&&(this.dMultiply(n),this.dAddOffset(o,0),s=0,o=0))}s>0&&(this.dMultiply(Math.pow(t,s)),this.dAddOffset(o,0)),a&&i.ZERO.subTo(this,this)},i.prototype.fromNumber=function(e,t,r){if("number"==typeof t)if(e<2)this.fromInt(1);else for(this.fromNumber(e,r),this.testBit(e-1)||this.bitwiseTo(i.ONE.shiftLeft(e-1),m,this),this.isEven()&&this.dAddOffset(1,0);!this.isProbablePrime(t);)this.dAddOffset(2,0),this.bitLength()>e&&this.subTo(i.ONE.shiftLeft(e-1),this);else{var n=new Array,a=7&e;n.length=1+(e>>3),t.nextBytes(n),a>0?n[0]&=(1<>=this.DB;if(e.t>=this.DB;n+=this.s}else{for(n+=this.s;r>=this.DB;n+=e.s}t.s=n<0?-1:0,n>0?t.data[r++]=n:n<-1&&(t.data[r++]=this.DV+n),t.t=r,t.clamp()},i.prototype.dMultiply=function(e){this.data[this.t]=this.am(0,e-1,this,0,0,this.t),++this.t,this.clamp()},i.prototype.dAddOffset=function(e,t){if(0!=e){for(;this.t<=t;)this.data[this.t++]=0;for(this.data[t]+=e;this.data[t]>=this.DV;)this.data[t]-=this.DV,++t>=this.t&&(this.data[this.t++]=0),++this.data[t]}},i.prototype.multiplyLowerTo=function(e,t,r){var n,a=Math.min(this.t+e.t,t);for(r.s=0,r.t=a;a>0;)r.data[--a]=0;for(n=r.t-this.t;a=0;)r.data[n]=0;for(n=Math.max(t-this.t,0);n0)if(0==t)r=this.data[0]%e;else for(var n=this.t-1;n>=0;--n)r=(t*r+this.data[n])%e;return r},i.prototype.millerRabin=function(e){var t=this.subtract(i.ONE),r=t.getLowestSetBit();if(r<=0)return!1;for(var n,a=t.shiftRight(r),s={nextBytes:function(e){for(var t=0;t=0);var c=n.modPow(a,this);if(0!=c.compareTo(i.ONE)&&0!=c.compareTo(t)){for(var u=1;u++>24},i.prototype.shortValue=function(){return 0==this.t?this.s:this.data[0]<<16>>16},i.prototype.signum=function(){return this.s<0?-1:this.t<=0||1==this.t&&this.data[0]<=0?0:1},i.prototype.toByteArray=function(){var e=this.t,t=new Array;t[0]=this.s;var r,n=this.DB-e*this.DB%8,a=0;if(e-- >0)for(n>n)!=(this.s&this.DM)>>n&&(t[a++]=r|this.s<=0;)n<8?(r=(this.data[e]&(1<>(n+=this.DB-8)):(r=this.data[e]>>(n-=8)&255,n<=0&&(n+=this.DB,--e)),0!=(128&r)&&(r|=-256),0==a&&(128&this.s)!=(128&r)&&++a,(a>0||r!=this.s)&&(t[a++]=r);return t},i.prototype.equals=function(e){return 0==this.compareTo(e)},i.prototype.min=function(e){return this.compareTo(e)<0?this:e},i.prototype.max=function(e){return this.compareTo(e)>0?this:e},i.prototype.and=function(e){var t=s();return this.bitwiseTo(e,v,t),t},i.prototype.or=function(e){var t=s();return this.bitwiseTo(e,m,t),t},i.prototype.xor=function(e){var t=s();return this.bitwiseTo(e,C,t),t},i.prototype.andNot=function(e){var t=s();return this.bitwiseTo(e,E,t),t},i.prototype.not=function(){for(var e=s(),t=0;t=this.t?0!=this.s:0!=(this.data[t]&1<1){var p=s();for(n.sqrTo(o[1],p);c<=l;)o[c]=s(),n.mulTo(p,o[c-2],o[c]),c+=2}var f,v,m=e.t-1,C=!0,E=s();for(a=d(e.data[m])-1;m>=0;){for(a>=u?f=e.data[m]>>a-u&l:(f=(e.data[m]&(1<0&&(f|=e.data[m-1]>>this.DB+a-u)),c=r;0==(1&f);)f>>=1,--c;if((a-=c)<0&&(a+=this.DB,--m),C)o[f].copyTo(i),C=!1;else{for(;c>1;)n.sqrTo(i,E),n.sqrTo(E,i),c-=2;c>0?n.sqrTo(i,E):(v=i,i=E,E=v),n.mulTo(E,o[f],i)}for(;m>=0&&0==(e.data[m]&1<=0?(r.subTo(n,r),t&&a.subTo(o,a),s.subTo(c,s)):(n.subTo(r,n),t&&o.subTo(a,o),c.subTo(s,c))}return 0!=n.compareTo(i.ONE)?i.ZERO:c.compareTo(e)>=0?c.subtract(e):c.signum()<0?(c.addTo(e,c),c.signum()<0?c.add(e):c):c},i.prototype.pow=function(e){return this.exp(e,new I)},i.prototype.gcd=function(e){var t=this.s<0?this.negate():this.clone(),r=e.s<0?e.negate():e.clone();if(t.compareTo(r)<0){var n=t;t=r,r=n}var a=t.getLowestSetBit(),i=r.getLowestSetBit();if(i<0)return t;for(a0&&(t.rShiftTo(i,t),r.rShiftTo(i,r));t.signum()>0;)(a=t.getLowestSetBit())>0&&t.rShiftTo(a,t),(a=r.getLowestSetBit())>0&&r.rShiftTo(a,r),t.compareTo(r)>=0?(t.subTo(r,t),t.rShiftTo(1,t)):(r.subTo(t,r),r.rShiftTo(1,r));return i>0&&r.lShiftTo(i,r),r},i.prototype.isProbablePrime=function(e){var t,r=this.abs();if(1==r.t&&r.data[0]<=B[B.length-1]){for(t=0;t>>0,o>>>0];for(var c=a.fullMessageLength.length-1;c>=0;--c)a.fullMessageLength[c]+=o[1],o[1]=o[0]+(a.fullMessageLength[c]/4294967296>>>0),a.fullMessageLength[c]=a.fullMessageLength[c]>>>0,o[0]=o[1]/4294967296>>>0;return t.putBytes(i),l(e,r,t),(t.read>2048||0===t.length())&&t.compact(),a},a.digest=function(){var s=n.util.createBuffer();s.putBytes(t.bytes());var o=a.fullMessageLength[a.fullMessageLength.length-1]+a.messageLengthSize&a.blockLength-1;s.putBytes(i.substr(0,a.blockLength-o));for(var c,u=0,p=a.fullMessageLength.length-1;p>=0;--p)u=(c=8*a.fullMessageLength[p]+u)/4294967296>>>0,s.putInt32Le(c>>>0);var f={h0:e.h0,h1:e.h1,h2:e.h2,h3:e.h3};l(f,r,s);var h=n.util.createBuffer();return h.putInt32Le(f.h0),h.putInt32Le(f.h1),h.putInt32Le(f.h2),h.putInt32Le(f.h3),h},a};var i=null,s=null,o=null,c=null,u=!1;function l(e,t,r){for(var n,a,i,u,l,p,f,h=r.length();h>=64;){for(a=e.h0,i=e.h1,u=e.h2,l=e.h3,f=0;f<16;++f)t[f]=r.getInt32Le(),n=a+(l^i&(u^l))+c[f]+t[f],a=l,l=u,u=i,i+=n<<(p=o[f])|n>>>32-p;for(;f<32;++f)n=a+(u^l&(i^u))+c[f]+t[s[f]],a=l,l=u,u=i,i+=n<<(p=o[f])|n>>>32-p;for(;f<48;++f)n=a+(i^u^l)+c[f]+t[s[f]],a=l,l=u,u=i,i+=n<<(p=o[f])|n>>>32-p;for(;f<64;++f)n=a+(u^(i|~l))+c[f]+t[s[f]],a=l,l=u,u=i,i+=n<<(p=o[f])|n>>>32-p;e.h0=e.h0+a|0,e.h1=e.h1+i|0,e.h2=e.h2+u|0,e.h3=e.h3+l|0,h-=64}}},function(e,t,r){var n=r(0);r(8),r(4),r(1);var a,i=n.pkcs5=n.pkcs5||{};n.util.isNodejs&&!n.options.usePureJavaScript&&(a=r(17)),e.exports=n.pbkdf2=i.pbkdf2=function(e,t,r,i,s,o){if("function"==typeof s&&(o=s,s=null),n.util.isNodejs&&!n.options.usePureJavaScript&&a.pbkdf2&&(null===s||"object"!=typeof s)&&(a.pbkdf2Sync.length>4||!s||"sha1"===s))return"string"!=typeof s&&(s="sha1"),e=Buffer.from(e,"binary"),t=Buffer.from(t,"binary"),o?4===a.pbkdf2Sync.length?a.pbkdf2(e,t,r,i,(function(e,t){if(e)return o(e);o(null,t.toString("binary"))})):a.pbkdf2(e,t,r,i,s,(function(e,t){if(e)return o(e);o(null,t.toString("binary"))})):4===a.pbkdf2Sync.length?a.pbkdf2Sync(e,t,r,i).toString("binary"):a.pbkdf2Sync(e,t,r,i,s).toString("binary");if(null==s&&(s="sha1"),"string"==typeof s){if(!(s in n.md.algorithms))throw new Error("Unknown hash algorithm: "+s);s=n.md[s].create()}var c=s.digestLength;if(i>4294967295*c){var u=new Error("Derived key is too long.");if(o)return o(u);throw u}var l=Math.ceil(i/c),p=i-(l-1)*c,f=n.hmac.create();f.start(s,e);var h,d,y,g="";if(!o){for(var v=1;v<=l;++v){f.start(null,null),f.update(t),f.update(n.util.int32ToBytes(v)),h=y=f.digest().getBytes();for(var m=2;m<=r;++m)f.start(null,null),f.update(y),d=f.digest().getBytes(),h=n.util.xorBytes(h,d,c),y=d;g+=vl)return o(null,g);f.start(null,null),f.update(t),f.update(n.util.int32ToBytes(v)),h=y=f.digest().getBytes(),m=2,E()}function E(){if(m<=r)return f.start(null,null),f.update(y),d=f.digest().getBytes(),h=n.util.xorBytes(h,d,c),y=d,++m,n.util.setImmediate(E);g+=v128)throw new Error('Invalid "nsComment" content.');e.value=a.create(a.Class.UNIVERSAL,a.Type.IA5STRING,!1,e.comment)}else if("subjectKeyIdentifier"===e.name&&t.cert){var h=t.cert.generateSubjectKeyIdentifier();e.subjectKeyIdentifier=h.toHex(),e.value=a.create(a.Class.UNIVERSAL,a.Type.OCTETSTRING,!1,h.getBytes())}else if("authorityKeyIdentifier"===e.name&&t.cert){e.value=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[]);l=e.value.value;if(e.keyIdentifier){var d=!0===e.keyIdentifier?t.cert.generateSubjectKeyIdentifier().getBytes():e.keyIdentifier;l.push(a.create(a.Class.CONTEXT_SPECIFIC,0,!1,d))}if(e.authorityCertIssuer){var y=[a.create(a.Class.CONTEXT_SPECIFIC,4,!0,[v(!0===e.authorityCertIssuer?t.cert.issuer:e.authorityCertIssuer)])];l.push(a.create(a.Class.CONTEXT_SPECIFIC,1,!0,y))}if(e.serialNumber){var g=n.util.hexToBytes(!0===e.serialNumber?t.cert.serialNumber:e.serialNumber);l.push(a.create(a.Class.CONTEXT_SPECIFIC,2,!1,g))}}else if("cRLDistributionPoints"===e.name){e.value=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[]);l=e.value.value;var m,C=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[]),E=a.create(a.Class.CONTEXT_SPECIFIC,0,!0,[]);for(f=0;f2)throw new Error("Cannot read notBefore/notAfter validity times; more than two times were provided in the certificate.");if(p.length<2)throw new Error("Cannot read notBefore/notAfter validity times; they were not provided as either UTCTime or GeneralizedTime.");if(c.validity.notBefore=p[0],c.validity.notAfter=p[1],c.tbsCertificate=r.tbsCertificate,t){c.md=y({signatureOid:c.signatureOid,type:"certificate"});var f=a.toDer(c.tbsCertificate);c.md.update(f.getBytes())}var g=n.md.sha1.create(),v=a.toDer(r.certIssuer);g.update(v.getBytes()),c.issuer.getField=function(e){return h(c.issuer,e)},c.issuer.addField=function(e){m([e]),c.issuer.attributes.push(e)},c.issuer.attributes=i.RDNAttributesAsArray(r.certIssuer),r.certIssuerUniqueId&&(c.issuer.uniqueId=r.certIssuerUniqueId),c.issuer.hash=g.digest().toHex();var C=n.md.sha1.create(),E=a.toDer(r.certSubject);return C.update(E.getBytes()),c.subject.getField=function(e){return h(c.subject,e)},c.subject.addField=function(e){m([e]),c.subject.attributes.push(e)},c.subject.attributes=i.RDNAttributesAsArray(r.certSubject),r.certSubjectUniqueId&&(c.subject.uniqueId=r.certSubjectUniqueId),c.subject.hash=C.digest().toHex(),r.certExtensions?c.extensions=i.certificateExtensionsFromAsn1(r.certExtensions):c.extensions=[],c.publicKey=i.publicKeyFromAsn1(r.subjectPublicKeyInfo),c},i.certificateExtensionsFromAsn1=function(e){for(var t=[],r=0;r1&&(r=c.value.charCodeAt(1),i=c.value.length>2?c.value.charCodeAt(2):0),t.digitalSignature=128==(128&r),t.nonRepudiation=64==(64&r),t.keyEncipherment=32==(32&r),t.dataEncipherment=16==(16&r),t.keyAgreement=8==(8&r),t.keyCertSign=4==(4&r),t.cRLSign=2==(2&r),t.encipherOnly=1==(1&r),t.decipherOnly=128==(128&i)}else if("basicConstraints"===t.name){(c=a.fromDer(t.value)).value.length>0&&c.value[0].type===a.Type.BOOLEAN?t.cA=0!==c.value[0].value.charCodeAt(0):t.cA=!1;var o=null;c.value.length>0&&c.value[0].type===a.Type.INTEGER?o=c.value[0].value:c.value.length>1&&(o=c.value[1].value),null!==o&&(t.pathLenConstraint=a.derToInteger(o))}else if("extKeyUsage"===t.name)for(var c=a.fromDer(t.value),u=0;u1&&(r=c.value.charCodeAt(1)),t.client=128==(128&r),t.server=64==(64&r),t.email=32==(32&r),t.objsign=16==(16&r),t.reserved=8==(8&r),t.sslCA=4==(4&r),t.emailCA=2==(2&r),t.objCA=1==(1&r)}else if("subjectAltName"===t.name||"issuerAltName"===t.name){var p;t.altNames=[];c=a.fromDer(t.value);for(var f=0;f=T&&e0&&s.value.push(i.certificateExtensionsToAsn1(e.extensions)),s},i.getCertificationRequestInfo=function(e){return a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.INTEGER,!1,a.integerToDer(e.version).getBytes()),v(e.subject),i.publicKeyToAsn1(e.publicKey),S(e)])},i.distinguishedNameToAsn1=function(e){return v(e)},i.certificateToAsn1=function(e){var t=e.tbsCertificate||i.getTBSCertificate(e);return a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[t,a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.OID,!1,a.oidToDer(e.signatureOid).getBytes()),E(e.signatureOid,e.signatureParameters)]),a.create(a.Class.UNIVERSAL,a.Type.BITSTRING,!1,String.fromCharCode(0)+e.signature)])},i.certificateExtensionsToAsn1=function(e){var t=a.create(a.Class.CONTEXT_SPECIFIC,3,!0,[]),r=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[]);t.value.push(r);for(var n=0;nl.validity.notAfter)&&(c={message:"Certificate is not valid yet or has expired.",error:i.certificateError.certificate_expired,notBefore:l.validity.notBefore,notAfter:l.validity.notAfter,now:s}),null===c){if(null===(p=t[0]||e.getIssuer(l))&&l.isIssuer(l)&&(f=!0,p=l),p){var h=p;n.util.isArray(h)||(h=[h]);for(var d=!1;!d&&h.length>0;){p=h.shift();try{d=p.verify(l)}catch(e){}}d||(c={message:"Certificate signature is invalid.",error:i.certificateError.bad_certificate})}null!==c||p&&!f||e.hasCertificate(l)||(c={message:"Certificate is not trusted.",error:i.certificateError.unknown_ca})}if(null===c&&p&&!l.isIssuer(p)&&(c={message:"Certificate issuer is invalid.",error:i.certificateError.bad_certificate}),null===c)for(var y={keyUsage:!0,basicConstraints:!0},g=0;null===c&&gm.pathLenConstraint&&(c={message:"Certificate basicConstraints pathLenConstraint violated.",error:i.certificateError.bad_certificate})}var E=null===c||c.error,S=r.verify?r.verify(E,u,a):E;if(!0!==S)throw!0===E&&(c={message:"The application rejected the certificate.",error:i.certificateError.bad_certificate}),(S||0===S)&&("object"!=typeof S||n.util.isArray(S)?"string"==typeof S&&(c.error=S):(S.message&&(c.message=S.message),S.error&&(c.error=S.error))),c;c=null,o=!1,++u}while(t.length>0);return!0}},function(e,t,r){var n=r(0);r(2),r(1),(e.exports=n.pss=n.pss||{}).create=function(e){3===arguments.length&&(e={md:arguments[0],mgf:arguments[1],saltLength:arguments[2]});var t,r=e.md,a=e.mgf,i=r.digestLength,s=e.salt||null;if("string"==typeof s&&(s=n.util.createBuffer(s)),"saltLength"in e)t=e.saltLength;else{if(null===s)throw new Error("Salt length not specified or specific salt not given.");t=s.length()}if(null!==s&&s.length()!==t)throw new Error("Given salt length does not match length of given salt.");var o=e.prng||n.random,c={encode:function(e,c){var u,l,p=c-1,f=Math.ceil(p/8),h=e.digest().getBytes();if(f>8*f-p&255;return(E=String.fromCharCode(E.charCodeAt(0)&~S)+E.substr(1))+y+String.fromCharCode(188)},verify:function(e,s,o){var c,u=o-1,l=Math.ceil(u/8);if(s=s.substr(-l),l>8*l-u&255;if(0!=(f.charCodeAt(0)&d))throw new Error("Bits beyond keysize not zero as expected.");var y=a.generate(h,p),g="";for(c=0;c4){var r=e;e=n.util.createBuffer();for(var a=0;a0))return!0;for(var n=0;n0))return!0;for(var n=0;n0)return!1;var r=e.length(),n=e.at(r-1);return!(n>this.blockSize<<2)&&(e.truncate(n),!0)},a.cbc=function(e){e=e||{},this.name="CBC",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=new Array(this._ints),this._outBlock=new Array(this._ints)},a.cbc.prototype.start=function(e){if(null===e.iv){if(!this._prev)throw new Error("Invalid IV parameter.");this._iv=this._prev.slice(0)}else{if(!("iv"in e))throw new Error("Invalid IV parameter.");this._iv=i(e.iv,this.blockSize),this._prev=this._iv.slice(0)}},a.cbc.prototype.encrypt=function(e,t,r){if(e.length()0))return!0;for(var n=0;n0))return!0;for(var n=0;n0)return!1;var r=e.length(),n=e.at(r-1);return!(n>this.blockSize<<2)&&(e.truncate(n),!0)},a.cfb=function(e){e=e||{},this.name="CFB",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=null,this._outBlock=new Array(this._ints),this._partialBlock=new Array(this._ints),this._partialOutput=n.util.createBuffer(),this._partialBytes=0},a.cfb.prototype.start=function(e){if(!("iv"in e))throw new Error("Invalid IV parameter.");this._iv=i(e.iv,this.blockSize),this._inBlock=this._iv.slice(0),this._partialBytes=0},a.cfb.prototype.encrypt=function(e,t,r){var n=e.length();if(0===n)return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&n>=this.blockSize)for(var a=0;a0&&(i=this.blockSize-i),this._partialOutput.clear();for(a=0;a0)e.read-=this.blockSize;else for(a=0;a0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(n-this._partialBytes)),this._partialBytes=0}},a.cfb.prototype.decrypt=function(e,t,r){var n=e.length();if(0===n)return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&n>=this.blockSize)for(var a=0;a0&&(i=this.blockSize-i),this._partialOutput.clear();for(a=0;a0)e.read-=this.blockSize;else for(a=0;a0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(n-this._partialBytes)),this._partialBytes=0}},a.ofb=function(e){e=e||{},this.name="OFB",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=null,this._outBlock=new Array(this._ints),this._partialOutput=n.util.createBuffer(),this._partialBytes=0},a.ofb.prototype.start=function(e){if(!("iv"in e))throw new Error("Invalid IV parameter.");this._iv=i(e.iv,this.blockSize),this._inBlock=this._iv.slice(0),this._partialBytes=0},a.ofb.prototype.encrypt=function(e,t,r){var n=e.length();if(0===e.length())return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&n>=this.blockSize)for(var a=0;a0&&(i=this.blockSize-i),this._partialOutput.clear();for(a=0;a0)e.read-=this.blockSize;else for(a=0;a0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(n-this._partialBytes)),this._partialBytes=0}},a.ofb.prototype.decrypt=a.ofb.prototype.encrypt,a.ctr=function(e){e=e||{},this.name="CTR",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=null,this._outBlock=new Array(this._ints),this._partialOutput=n.util.createBuffer(),this._partialBytes=0},a.ctr.prototype.start=function(e){if(!("iv"in e))throw new Error("Invalid IV parameter.");this._iv=i(e.iv,this.blockSize),this._inBlock=this._iv.slice(0),this._partialBytes=0},a.ctr.prototype.encrypt=function(e,t,r){var n=e.length();if(0===n)return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&n>=this.blockSize)for(var a=0;a0&&(i=this.blockSize-i),this._partialOutput.clear();for(a=0;a0&&(e.read-=this.blockSize),this._partialBytes>0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(n-this._partialBytes)),this._partialBytes=0}s(this._inBlock)},a.ctr.prototype.decrypt=a.ctr.prototype.encrypt,a.gcm=function(e){e=e||{},this.name="GCM",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=new Array(this._ints),this._outBlock=new Array(this._ints),this._partialOutput=n.util.createBuffer(),this._partialBytes=0,this._R=3774873600},a.gcm.prototype.start=function(e){if(!("iv"in e))throw new Error("Invalid IV parameter.");var t,r=n.util.createBuffer(e.iv);if(this._cipherLength=0,t="additionalData"in e?n.util.createBuffer(e.additionalData):n.util.createBuffer(),this._tagLength="tagLength"in e?e.tagLength:128,this._tag=null,e.decrypt&&(this._tag=n.util.createBuffer(e.tag).getBytes(),this._tag.length!==this._tagLength/8))throw new Error("Authentication tag does not match tag length.");this._hashBlock=new Array(this._ints),this.tag=null,this._hashSubkey=new Array(this._ints),this.cipher.encrypt([0,0,0,0],this._hashSubkey),this.componentBits=4,this._m=this.generateHashTable(this._hashSubkey,this.componentBits);var a=r.length();if(12===a)this._j0=[r.getInt32(),r.getInt32(),r.getInt32(),1];else{for(this._j0=[0,0,0,0];r.length()>0;)this._j0=this.ghash(this._hashSubkey,this._j0,[r.getInt32(),r.getInt32(),r.getInt32(),r.getInt32()]);this._j0=this.ghash(this._hashSubkey,this._j0,[0,0].concat(o(8*a)))}this._inBlock=this._j0.slice(0),s(this._inBlock),this._partialBytes=0,t=n.util.createBuffer(t),this._aDataLength=o(8*t.length());var i=t.length()%this.blockSize;for(i&&t.fillWithByte(0,this.blockSize-i),this._s=[0,0,0,0];t.length()>0;)this._s=this.ghash(this._hashSubkey,this._s,[t.getInt32(),t.getInt32(),t.getInt32(),t.getInt32()])},a.gcm.prototype.encrypt=function(e,t,r){var n=e.length();if(0===n)return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&n>=this.blockSize){for(var a=0;a0&&(i=this.blockSize-i),this._partialOutput.clear();for(a=0;a0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return e.read-=this.blockSize,t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(n-this._partialBytes)),this._partialBytes=0}this._s=this.ghash(this._hashSubkey,this._s,this._outBlock),s(this._inBlock)},a.gcm.prototype.decrypt=function(e,t,r){var n=e.length();if(n0))return!0;this.cipher.encrypt(this._inBlock,this._outBlock),s(this._inBlock),this._hashBlock[0]=e.getInt32(),this._hashBlock[1]=e.getInt32(),this._hashBlock[2]=e.getInt32(),this._hashBlock[3]=e.getInt32(),this._s=this.ghash(this._hashSubkey,this._s,this._hashBlock);for(var a=0;a0;--n)t[n]=e[n]>>>1|(1&e[n-1])<<31;t[0]=e[0]>>>1,r&&(t[0]^=this._R)},a.gcm.prototype.tableMultiply=function(e){for(var t=[0,0,0,0],r=0;r<32;++r){var n=e[r/8|0]>>>4*(7-r%8)&15,a=this._m[r][n];t[0]^=a[0],t[1]^=a[1],t[2]^=a[2],t[3]^=a[3]}return t},a.gcm.prototype.ghash=function(e,t,r){return t[0]^=r[0],t[1]^=r[1],t[2]^=r[2],t[3]^=r[3],this.tableMultiply(t)},a.gcm.prototype.generateHashTable=function(e,t){for(var r=8/t,n=4*r,a=16*r,i=new Array(a),s=0;s>>1,a=new Array(r);a[n]=e.slice(0);for(var i=n>>>1;i>0;)this.pow(a[2*i],a[i]=[]),i>>=1;for(i=2;i=0;c--)w>>=8,w+=A.at(c)+k.at(c),k.setAt(c,255&w);N.putBuffer(k)}E=N,p.putBuffer(I)}return p.truncate(p.length()-i),p},s.pbe.getCipher=function(e,t,r){switch(e){case s.oids.pkcs5PBES2:return s.pbe.getCipherForPBES2(e,t,r);case s.oids["pbeWithSHAAnd3-KeyTripleDES-CBC"]:case s.oids["pbewithSHAAnd40BitRC2-CBC"]:return s.pbe.getCipherForPKCS12PBE(e,t,r);default:var n=new Error("Cannot read encrypted PBE data block. Unsupported OID.");throw n.oid=e,n.supportedOids=["pkcs5PBES2","pbeWithSHAAnd3-KeyTripleDES-CBC","pbewithSHAAnd40BitRC2-CBC"],n}},s.pbe.getCipherForPBES2=function(e,t,r){var a,o={},c=[];if(!i.validate(t,u,o,c))throw(a=new Error("Cannot read password-based-encryption algorithm parameters. ASN.1 object is not a supported EncryptedPrivateKeyInfo.")).errors=c,a;if((e=i.derToOid(o.kdfOid))!==s.oids.pkcs5PBKDF2)throw(a=new Error("Cannot read encrypted private key. Unsupported key derivation function OID.")).oid=e,a.supportedOids=["pkcs5PBKDF2"],a;if((e=i.derToOid(o.encOid))!==s.oids["aes128-CBC"]&&e!==s.oids["aes192-CBC"]&&e!==s.oids["aes256-CBC"]&&e!==s.oids["des-EDE3-CBC"]&&e!==s.oids.desCBC)throw(a=new Error("Cannot read encrypted private key. Unsupported encryption scheme OID.")).oid=e,a.supportedOids=["aes128-CBC","aes192-CBC","aes256-CBC","des-EDE3-CBC","desCBC"],a;var l,p,h=o.kdfSalt,d=n.util.createBuffer(o.kdfIterationCount);switch(d=d.getInt(d.length()<<3),s.oids[e]){case"aes128-CBC":l=16,p=n.aes.createDecryptionCipher;break;case"aes192-CBC":l=24,p=n.aes.createDecryptionCipher;break;case"aes256-CBC":l=32,p=n.aes.createDecryptionCipher;break;case"des-EDE3-CBC":l=24,p=n.des.createDecryptionCipher;break;case"desCBC":l=8,p=n.des.createDecryptionCipher}var y=f(o.prfOid),g=n.pkcs5.pbkdf2(r,h,d,l,y),v=o.encIv,m=p(g);return m.start(v),m},s.pbe.getCipherForPKCS12PBE=function(e,t,r){var a={},o=[];if(!i.validate(t,l,a,o))throw(y=new Error("Cannot read password-based-encryption algorithm parameters. ASN.1 object is not a supported EncryptedPrivateKeyInfo.")).errors=o,y;var c,u,p,h=n.util.createBuffer(a.salt),d=n.util.createBuffer(a.iterations);switch(d=d.getInt(d.length()<<3),e){case s.oids["pbeWithSHAAnd3-KeyTripleDES-CBC"]:c=24,u=8,p=n.des.startDecrypting;break;case s.oids["pbewithSHAAnd40BitRC2-CBC"]:c=5,u=8,p=function(e,t){var r=n.rc2.createDecryptionCipher(e,40);return r.start(t,null),r};break;default:var y;throw(y=new Error("Cannot read PKCS #12 PBE data block. Unsupported OID.")).oid=e,y}var g=f(a.prfOid),v=s.pbe.generatePkcs12Key(r,h,1,d,c,g);return g.start(),p(v,s.pbe.generatePkcs12Key(r,h,2,d,u,g))},s.pbe.opensslDeriveBytes=function(e,t,r,a){if(null==a){if(!("md5"in n.md))throw new Error('"md5" hash algorithm unavailable.');a=n.md.md5.create()}null===t&&(t="");for(var i=[p(a,e+t)],s=16,o=1;s>>0,o>>>0];for(var u=a.fullMessageLength.length-1;u>=0;--u)a.fullMessageLength[u]+=o[1],o[1]=o[0]+(a.fullMessageLength[u]/4294967296>>>0),a.fullMessageLength[u]=a.fullMessageLength[u]>>>0,o[0]=o[1]/4294967296>>>0;return t.putBytes(i),c(e,r,t),(t.read>2048||0===t.length())&&t.compact(),a},a.digest=function(){var s=n.util.createBuffer();s.putBytes(t.bytes());var o,u=a.fullMessageLength[a.fullMessageLength.length-1]+a.messageLengthSize&a.blockLength-1;s.putBytes(i.substr(0,a.blockLength-u));for(var l=8*a.fullMessageLength[0],p=0;p>>0,s.putInt32(l>>>0),l=o>>>0;s.putInt32(l);var f={h0:e.h0,h1:e.h1,h2:e.h2,h3:e.h3,h4:e.h4,h5:e.h5,h6:e.h6,h7:e.h7};c(f,r,s);var h=n.util.createBuffer();return h.putInt32(f.h0),h.putInt32(f.h1),h.putInt32(f.h2),h.putInt32(f.h3),h.putInt32(f.h4),h.putInt32(f.h5),h.putInt32(f.h6),h.putInt32(f.h7),h},a};var i=null,s=!1,o=null;function c(e,t,r){for(var n,a,i,s,c,u,l,p,f,h,d,y,g,v=r.length();v>=64;){for(c=0;c<16;++c)t[c]=r.getInt32();for(;c<64;++c)n=((n=t[c-2])>>>17|n<<15)^(n>>>19|n<<13)^n>>>10,a=((a=t[c-15])>>>7|a<<25)^(a>>>18|a<<14)^a>>>3,t[c]=n+t[c-7]+a+t[c-16]|0;for(u=e.h0,l=e.h1,p=e.h2,f=e.h3,h=e.h4,d=e.h5,y=e.h6,g=e.h7,c=0;c<64;++c)i=(u>>>2|u<<30)^(u>>>13|u<<19)^(u>>>22|u<<10),s=u&l|p&(u^l),n=g+((h>>>6|h<<26)^(h>>>11|h<<21)^(h>>>25|h<<7))+(y^h&(d^y))+o[c]+t[c],g=y,y=d,d=h,h=f+n>>>0,f=p,p=l,l=u,u=n+(a=i+s)>>>0;e.h0=e.h0+u|0,e.h1=e.h1+l|0,e.h2=e.h2+p|0,e.h3=e.h3+f|0,e.h4=e.h4+h|0,e.h5=e.h5+d|0,e.h6=e.h6+y|0,e.h7=e.h7+g|0,v-=64}}},function(e,t,r){var n=r(0);r(1);var a=null;!n.util.isNodejs||n.options.usePureJavaScript||process.versions["node-webkit"]||(a=r(17)),(e.exports=n.prng=n.prng||{}).create=function(e){for(var t={plugin:e,key:null,seed:null,time:null,reseeds:0,generated:0,keyBytes:""},r=e.md,i=new Array(32),s=0;s<32;++s)i[s]=r.create();function o(){if(t.pools[0].messageLength>=32)return c();var e=32-t.pools[0].messageLength<<5;t.collect(t.seedFileSync(e)),c()}function c(){t.reseeds=4294967295===t.reseeds?0:t.reseeds+1;var e=t.plugin.md.create();e.update(t.keyBytes);for(var r=1,n=0;n<32;++n)t.reseeds%r==0&&(e.update(t.pools[n].digest().getBytes()),t.pools[n].start()),r<<=1;t.keyBytes=e.digest().getBytes(),e.start(),e.update(t.keyBytes);var a=e.digest().getBytes();t.key=t.plugin.formatKey(t.keyBytes),t.seed=t.plugin.formatSeed(a),t.generated=0}function u(e){var t=null,r=n.util.globalScope,a=r.crypto||r.msCrypto;a&&a.getRandomValues&&(t=function(e){return a.getRandomValues(e)});var i=n.util.createBuffer();if(t)for(;i.length()>16)))<<16,f=4294967295&(l=(2147483647&(l+=u>>15))+(l>>31));for(c=0;c<3;++c)p=f>>>(c<<3),p^=Math.floor(256*Math.random()),i.putByte(255&p)}return i.getBytes(e)}return t.pools=i,t.pool=0,t.generate=function(e,r){if(!r)return t.generateSync(e);var a=t.plugin.cipher,i=t.plugin.increment,s=t.plugin.formatKey,o=t.plugin.formatSeed,u=n.util.createBuffer();t.key=null,function l(p){if(p)return r(p);if(u.length()>=e)return r(null,u.getBytes(e));t.generated>1048575&&(t.key=null);if(null===t.key)return n.util.nextTick((function(){!function(e){if(t.pools[0].messageLength>=32)return c(),e();var r=32-t.pools[0].messageLength<<5;t.seedFile(r,(function(r,n){if(r)return e(r);t.collect(n),c(),e()}))}(l)}));var f=a(t.key,t.seed);t.generated+=f.length,u.putBytes(f),t.key=s(a(t.key,i(t.seed))),t.seed=o(a(t.key,t.seed)),n.util.setImmediate(l)}()},t.generateSync=function(e){var r=t.plugin.cipher,a=t.plugin.increment,i=t.plugin.formatKey,s=t.plugin.formatSeed;t.key=null;for(var c=n.util.createBuffer();c.length()1048575&&(t.key=null),null===t.key&&o();var u=r(t.key,t.seed);t.generated+=u.length,c.putBytes(u),t.key=i(r(t.key,a(t.seed))),t.seed=s(r(t.key,t.seed))}return c.getBytes(e)},a?(t.seedFile=function(e,t){a.randomBytes(e,(function(e,r){if(e)return t(e);t(null,r.toString())}))},t.seedFileSync=function(e){return a.randomBytes(e).toString()}):(t.seedFile=function(e,t){try{t(null,u(e))}catch(e){t(e)}},t.seedFileSync=u),t.collect=function(e){for(var r=e.length,n=0;n>a&255);t.collect(n)},t.registerWorker=function(e){if(e===self)t.seedFile=function(e,t){self.addEventListener("message",(function e(r){var n=r.data;n.forge&&n.forge.prng&&(self.removeEventListener("message",e),t(n.forge.prng.err,n.forge.prng.bytes))})),self.postMessage({forge:{prng:{needed:e}}})};else{e.addEventListener("message",(function(r){var n=r.data;n.forge&&n.forge.prng&&t.seedFile(n.forge.prng.needed,(function(t,r){e.postMessage({forge:{prng:{err:t,bytes:r}}})}))}))}},t}},function(e,t,r){var n=r(0);r(1);var a=[217,120,249,196,25,221,181,237,40,233,253,121,74,160,216,157,198,126,55,131,43,118,83,142,98,76,100,136,68,139,251,162,23,154,89,245,135,179,79,19,97,69,109,141,9,129,125,50,189,143,64,235,134,183,123,11,240,149,33,34,92,107,78,130,84,214,101,147,206,96,178,28,115,86,192,20,167,140,241,220,18,117,202,31,59,190,228,209,66,61,212,48,163,60,182,38,111,191,14,218,70,105,7,87,39,242,29,155,188,148,67,3,248,17,199,246,144,239,62,231,6,195,213,47,200,102,30,215,8,232,234,222,128,82,238,247,132,170,114,172,53,77,106,42,150,26,210,113,90,21,73,116,75,159,208,94,4,24,164,236,194,224,65,110,15,81,203,204,36,145,175,80,161,244,112,57,153,124,58,133,35,184,180,122,252,2,54,91,37,85,151,49,45,93,250,152,227,138,146,174,5,223,41,16,103,108,186,201,211,0,230,207,225,158,168,44,99,22,1,63,88,226,137,169,13,56,52,27,171,51,255,176,187,72,12,95,185,177,205,46,197,243,219,71,229,165,156,119,10,166,32,104,254,127,193,173],i=[1,2,3,5],s=function(e,t){return e<>16-t},o=function(e,t){return(65535&e)>>t|e<<16-t&65535};e.exports=n.rc2=n.rc2||{},n.rc2.expandKey=function(e,t){"string"==typeof e&&(e=n.util.createBuffer(e)),t=t||128;var r,i=e,s=e.length(),o=t,c=Math.ceil(o/8),u=255>>(7&o);for(r=s;r<128;r++)i.putByte(a[i.at(r-1)+i.at(r-s)&255]);for(i.setAt(128-c,a[i.at(128-c)&u]),r=127-c;r>=0;r--)i.setAt(r,a[i.at(r+1)^i.at(r+c)]);return i};var c=function(e,t,r){var a,c,u,l,p=!1,f=null,h=null,d=null,y=[];for(e=n.rc2.expandKey(e,t),u=0;u<64;u++)y.push(e.getInt16Le());r?(a=function(e){for(u=0;u<4;u++)e[u]+=y[l]+(e[(u+3)%4]&e[(u+2)%4])+(~e[(u+3)%4]&e[(u+1)%4]),e[u]=s(e[u],i[u]),l++},c=function(e){for(u=0;u<4;u++)e[u]+=y[63&e[(u+3)%4]]}):(a=function(e){for(u=3;u>=0;u--)e[u]=o(e[u],i[u]),e[u]-=y[l]+(e[(u+3)%4]&e[(u+2)%4])+(~e[(u+3)%4]&e[(u+1)%4]),l--},c=function(e){for(u=3;u>=0;u--)e[u]-=y[63&e[(u+3)%4]]});var g=function(e){var t=[];for(u=0;u<4;u++){var n=f.getInt16Le();null!==d&&(r?n^=d.getInt16Le():d.putInt16Le(n)),t.push(65535&n)}l=r?0:63;for(var a=0;a=8;)g([[5,a],[1,c],[6,a],[1,c],[5,a]])},finish:function(e){var t=!0;if(r)if(e)t=e(8,f,!r);else{var n=8===f.length()?8:8-f.length();f.fillWithByte(n,n)}if(t&&(p=!0,v.update()),!r&&(t=0===f.length()))if(e)t=e(8,h,!r);else{var a=h.length(),i=h.at(a-1);i>a?t=!1:h.truncate(i)}return t}}};n.rc2.startEncrypting=function(e,t,r){var a=n.rc2.createEncryptionCipher(e,128);return a.start(t,r),a},n.rc2.createEncryptionCipher=function(e,t){return c(e,t,!0)},n.rc2.startDecrypting=function(e,t,r){var a=n.rc2.createDecryptionCipher(e,128);return a.start(t,r),a},n.rc2.createDecryptionCipher=function(e,t){return c(e,t,!1)}},function(e,t,r){var n=r(0);r(1),r(2),r(9);var a=e.exports=n.pkcs1=n.pkcs1||{};function i(e,t,r){r||(r=n.md.sha1.create());for(var a="",i=Math.ceil(t/r.digestLength),s=0;s>24&255,s>>16&255,s>>8&255,255&s);r.start(),r.update(e+o),a+=r.digest().getBytes()}return a.substring(0,t)}a.encode_rsa_oaep=function(e,t,r){var a,s,o,c;"string"==typeof r?(a=r,s=arguments[3]||void 0,o=arguments[4]||void 0):r&&(a=r.label||void 0,s=r.seed||void 0,o=r.md||void 0,r.mgf1&&r.mgf1.md&&(c=r.mgf1.md)),o?o.start():o=n.md.sha1.create(),c||(c=o);var u=Math.ceil(e.n.bitLength()/8),l=u-2*o.digestLength-2;if(t.length>l)throw(g=new Error("RSAES-OAEP input message length is too long.")).length=t.length,g.maxLength=l,g;a||(a=""),o.update(a,"raw");for(var p=o.digest(),f="",h=l-t.length,d=0;de&&(s=c(e,t));var h=s.toString(16);a.target.postMessage({hex:h,workLoad:l}),s.dAddOffset(p,0)}}}h()}(e,t,a,i);return o(e,t,a,i)}(e,u,i.options,a);throw new Error("Invalid prime generation algorithm: "+i.name)}}function o(e,t,r,i){var s=c(e,t),o=function(e){return e<=100?27:e<=150?18:e<=200?15:e<=250?12:e<=300?9:e<=350?8:e<=400?7:e<=500?6:e<=600?5:e<=800?4:e<=1250?3:2}(s.bitLength());"millerRabinTests"in r&&(o=r.millerRabinTests);var u=10;"maxBlockTime"in r&&(u=r.maxBlockTime),function e(t,r,i,s,o,u,l){var p=+new Date;do{if(t.bitLength()>r&&(t=c(r,i)),t.isProbablePrime(o))return l(null,t);t.dAddOffset(a[s++%8],0)}while(u<0||+new Date-p=0&&a.push(o):a.push(o))}return a}function h(e){if(e.composed||e.constructed){for(var t=n.util.createBuffer(),r=0;r0&&(c=a.create(a.Class.UNIVERSAL,a.Type.SET,!0,p));var f=[],h=[];null!==t&&(h=n.util.isArray(t)?t:[t]);for(var d=[],y=0;y0){var C=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,d),E=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.OID,!1,a.oidToDer(i.oids.data).getBytes()),a.create(a.Class.CONTEXT_SPECIFIC,0,!0,[a.create(a.Class.UNIVERSAL,a.Type.OCTETSTRING,!1,a.toDer(C).getBytes())])]);f.push(E)}var S=null;if(null!==e){var T=i.wrapRsaPrivateKey(i.privateKeyToAsn1(e));S=null===r?a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.OID,!1,a.oidToDer(i.oids.keyBag).getBytes()),a.create(a.Class.CONTEXT_SPECIFIC,0,!0,[T]),c]):a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.OID,!1,a.oidToDer(i.oids.pkcs8ShroudedKeyBag).getBytes()),a.create(a.Class.CONTEXT_SPECIFIC,0,!0,[i.encryptPrivateKeyInfo(T,r,o)]),c]);var I=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[S]),b=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.OID,!1,a.oidToDer(i.oids.data).getBytes()),a.create(a.Class.CONTEXT_SPECIFIC,0,!0,[a.create(a.Class.UNIVERSAL,a.Type.OCTETSTRING,!1,a.toDer(I).getBytes())])]);f.push(b)}var A,B=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,f);if(o.useMac){var N=n.md.sha1.create(),k=new n.util.ByteBuffer(n.random.getBytes(o.saltSize)),w=o.count,R=(e=s.generateKey(r,k,3,w,20),n.hmac.create());R.start(N,e),R.update(a.toDer(B).getBytes());var L=R.getMac();A=a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.OID,!1,a.oidToDer(i.oids.sha1).getBytes()),a.create(a.Class.UNIVERSAL,a.Type.NULL,!1,"")]),a.create(a.Class.UNIVERSAL,a.Type.OCTETSTRING,!1,L.getBytes())]),a.create(a.Class.UNIVERSAL,a.Type.OCTETSTRING,!1,k.getBytes()),a.create(a.Class.UNIVERSAL,a.Type.INTEGER,!1,a.integerToDer(w).getBytes())])}return a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.INTEGER,!1,a.integerToDer(3).getBytes()),a.create(a.Class.UNIVERSAL,a.Type.SEQUENCE,!0,[a.create(a.Class.UNIVERSAL,a.Type.OID,!1,a.oidToDer(i.oids.data).getBytes()),a.create(a.Class.CONTEXT_SPECIFIC,0,!0,[a.create(a.Class.UNIVERSAL,a.Type.OCTETSTRING,!1,a.toDer(B).getBytes())])]),A])},s.generateKey=n.pbe.generatePkcs12Key},function(e,t,r){var n=r(0);r(3),r(1);var a=n.asn1,i=e.exports=n.pkcs7asn1=n.pkcs7asn1||{};n.pkcs7=n.pkcs7||{},n.pkcs7.asn1=i;var s={name:"ContentInfo",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"ContentInfo.ContentType",tagClass:a.Class.UNIVERSAL,type:a.Type.OID,constructed:!1,capture:"contentType"},{name:"ContentInfo.content",tagClass:a.Class.CONTEXT_SPECIFIC,type:0,constructed:!0,optional:!0,captureAsn1:"content"}]};i.contentInfoValidator=s;var o={name:"EncryptedContentInfo",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"EncryptedContentInfo.contentType",tagClass:a.Class.UNIVERSAL,type:a.Type.OID,constructed:!1,capture:"contentType"},{name:"EncryptedContentInfo.contentEncryptionAlgorithm",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"EncryptedContentInfo.contentEncryptionAlgorithm.algorithm",tagClass:a.Class.UNIVERSAL,type:a.Type.OID,constructed:!1,capture:"encAlgorithm"},{name:"EncryptedContentInfo.contentEncryptionAlgorithm.parameter",tagClass:a.Class.UNIVERSAL,captureAsn1:"encParameter"}]},{name:"EncryptedContentInfo.encryptedContent",tagClass:a.Class.CONTEXT_SPECIFIC,type:0,capture:"encryptedContent",captureAsn1:"encryptedContentAsn1"}]};i.envelopedDataValidator={name:"EnvelopedData",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"EnvelopedData.Version",tagClass:a.Class.UNIVERSAL,type:a.Type.INTEGER,constructed:!1,capture:"version"},{name:"EnvelopedData.RecipientInfos",tagClass:a.Class.UNIVERSAL,type:a.Type.SET,constructed:!0,captureAsn1:"recipientInfos"}].concat(o)},i.encryptedDataValidator={name:"EncryptedData",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"EncryptedData.Version",tagClass:a.Class.UNIVERSAL,type:a.Type.INTEGER,constructed:!1,capture:"version"}].concat(o)};var c={name:"SignerInfo",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"SignerInfo.version",tagClass:a.Class.UNIVERSAL,type:a.Type.INTEGER,constructed:!1},{name:"SignerInfo.issuerAndSerialNumber",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"SignerInfo.issuerAndSerialNumber.issuer",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,captureAsn1:"issuer"},{name:"SignerInfo.issuerAndSerialNumber.serialNumber",tagClass:a.Class.UNIVERSAL,type:a.Type.INTEGER,constructed:!1,capture:"serial"}]},{name:"SignerInfo.digestAlgorithm",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"SignerInfo.digestAlgorithm.algorithm",tagClass:a.Class.UNIVERSAL,type:a.Type.OID,constructed:!1,capture:"digestAlgorithm"},{name:"SignerInfo.digestAlgorithm.parameter",tagClass:a.Class.UNIVERSAL,constructed:!1,captureAsn1:"digestParameter",optional:!0}]},{name:"SignerInfo.authenticatedAttributes",tagClass:a.Class.CONTEXT_SPECIFIC,type:0,constructed:!0,optional:!0,capture:"authenticatedAttributes"},{name:"SignerInfo.digestEncryptionAlgorithm",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,capture:"signatureAlgorithm"},{name:"SignerInfo.encryptedDigest",tagClass:a.Class.UNIVERSAL,type:a.Type.OCTETSTRING,constructed:!1,capture:"signature"},{name:"SignerInfo.unauthenticatedAttributes",tagClass:a.Class.CONTEXT_SPECIFIC,type:1,constructed:!0,optional:!0,capture:"unauthenticatedAttributes"}]};i.signedDataValidator={name:"SignedData",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"SignedData.Version",tagClass:a.Class.UNIVERSAL,type:a.Type.INTEGER,constructed:!1,capture:"version"},{name:"SignedData.DigestAlgorithms",tagClass:a.Class.UNIVERSAL,type:a.Type.SET,constructed:!0,captureAsn1:"digestAlgorithms"},s,{name:"SignedData.Certificates",tagClass:a.Class.CONTEXT_SPECIFIC,type:0,optional:!0,captureAsn1:"certificates"},{name:"SignedData.CertificateRevocationLists",tagClass:a.Class.CONTEXT_SPECIFIC,type:1,optional:!0,captureAsn1:"crls"},{name:"SignedData.SignerInfos",tagClass:a.Class.UNIVERSAL,type:a.Type.SET,capture:"signerInfos",optional:!0,value:[c]}]},i.recipientInfoValidator={name:"RecipientInfo",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"RecipientInfo.version",tagClass:a.Class.UNIVERSAL,type:a.Type.INTEGER,constructed:!1,capture:"version"},{name:"RecipientInfo.issuerAndSerial",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"RecipientInfo.issuerAndSerial.issuer",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,captureAsn1:"issuer"},{name:"RecipientInfo.issuerAndSerial.serialNumber",tagClass:a.Class.UNIVERSAL,type:a.Type.INTEGER,constructed:!1,capture:"serial"}]},{name:"RecipientInfo.keyEncryptionAlgorithm",tagClass:a.Class.UNIVERSAL,type:a.Type.SEQUENCE,constructed:!0,value:[{name:"RecipientInfo.keyEncryptionAlgorithm.algorithm",tagClass:a.Class.UNIVERSAL,type:a.Type.OID,constructed:!1,capture:"encAlgorithm"},{name:"RecipientInfo.keyEncryptionAlgorithm.parameter",tagClass:a.Class.UNIVERSAL,constructed:!1,captureAsn1:"encParameter",optional:!0}]},{name:"RecipientInfo.encryptedKey",tagClass:a.Class.UNIVERSAL,type:a.Type.OCTETSTRING,constructed:!1,capture:"encKey"}]}},function(e,t,r){var n=r(0);r(1),n.mgf=n.mgf||{},(e.exports=n.mgf.mgf1=n.mgf1=n.mgf1||{}).create=function(e){return{generate:function(t,r){for(var a=new n.util.ByteBuffer,i=Math.ceil(r/e.digestLength),s=0;s>>0,s>>>0];for(var o=h.fullMessageLength.length-1;o>=0;--o)h.fullMessageLength[o]+=s[1],s[1]=s[0]+(h.fullMessageLength[o]/4294967296>>>0),h.fullMessageLength[o]=h.fullMessageLength[o]>>>0,s[0]=s[1]/4294967296>>>0;return a.putBytes(e),l(r,i,a),(a.read>2048||0===a.length())&&a.compact(),h},h.digest=function(){var t=n.util.createBuffer();t.putBytes(a.bytes());var o,c=h.fullMessageLength[h.fullMessageLength.length-1]+h.messageLengthSize&h.blockLength-1;t.putBytes(s.substr(0,h.blockLength-c));for(var u=8*h.fullMessageLength[0],p=0;p>>0,t.putInt32(u>>>0),u=o>>>0;t.putInt32(u);var f=new Array(r.length);for(p=0;p=128;){for(R=0;R<16;++R)t[R][0]=r.getInt32()>>>0,t[R][1]=r.getInt32()>>>0;for(;R<80;++R)n=(((L=(U=t[R-2])[0])>>>19|(_=U[1])<<13)^(_>>>29|L<<3)^L>>>6)>>>0,a=((L<<13|_>>>19)^(_<<3|L>>>29)^(L<<26|_>>>6))>>>0,i=(((L=(P=t[R-15])[0])>>>1|(_=P[1])<<31)^(L>>>8|_<<24)^L>>>7)>>>0,s=((L<<31|_>>>1)^(L<<24|_>>>8)^(L<<25|_>>>7))>>>0,D=t[R-7],V=t[R-16],_=a+D[1]+s+V[1],t[R][0]=n+D[0]+i+V[0]+(_/4294967296>>>0)>>>0,t[R][1]=_>>>0;for(d=e[0][0],y=e[0][1],g=e[1][0],v=e[1][1],m=e[2][0],C=e[2][1],E=e[3][0],S=e[3][1],T=e[4][0],I=e[4][1],b=e[5][0],A=e[5][1],B=e[6][0],N=e[6][1],k=e[7][0],w=e[7][1],R=0;R<80;++R)l=((T>>>14|I<<18)^(T>>>18|I<<14)^(I>>>9|T<<23))>>>0,p=(B^T&(b^B))>>>0,o=((d>>>28|y<<4)^(y>>>2|d<<30)^(y>>>7|d<<25))>>>0,u=((d<<4|y>>>28)^(y<<30|d>>>2)^(y<<25|d>>>7))>>>0,f=(d&g|m&(d^g))>>>0,h=(y&v|C&(y^v))>>>0,_=w+(((T<<18|I>>>14)^(T<<14|I>>>18)^(I<<23|T>>>9))>>>0)+((N^I&(A^N))>>>0)+c[R][1]+t[R][1],n=k+l+p+c[R][0]+t[R][0]+(_/4294967296>>>0)>>>0,a=_>>>0,i=o+f+((_=u+h)/4294967296>>>0)>>>0,s=_>>>0,k=B,w=N,B=b,N=A,b=T,A=I,T=E+n+((_=S+a)/4294967296>>>0)>>>0,I=_>>>0,E=m,S=C,m=g,C=v,g=d,v=y,d=n+i+((_=a+s)/4294967296>>>0)>>>0,y=_>>>0;_=e[0][1]+y,e[0][0]=e[0][0]+d+(_/4294967296>>>0)>>>0,e[0][1]=_>>>0,_=e[1][1]+v,e[1][0]=e[1][0]+g+(_/4294967296>>>0)>>>0,e[1][1]=_>>>0,_=e[2][1]+C,e[2][0]=e[2][0]+m+(_/4294967296>>>0)>>>0,e[2][1]=_>>>0,_=e[3][1]+S,e[3][0]=e[3][0]+E+(_/4294967296>>>0)>>>0,e[3][1]=_>>>0,_=e[4][1]+I,e[4][0]=e[4][0]+T+(_/4294967296>>>0)>>>0,e[4][1]=_>>>0,_=e[5][1]+A,e[5][0]=e[5][0]+b+(_/4294967296>>>0)>>>0,e[5][1]=_>>>0,_=e[6][1]+N,e[6][0]=e[6][0]+B+(_/4294967296>>>0)>>>0,e[6][1]=_>>>0,_=e[7][1]+w,e[7][0]=e[7][0]+k+(_/4294967296>>>0)>>>0,e[7][1]=_>>>0,O-=128}}},function(e,t,r){var n=r(0);r(1);var a=e.exports=n.net=n.net||{};a.socketPools={},a.createSocketPool=function(e){e.msie=e.msie||!1;var t=e.flashId,r=document.getElementById(t);r.init({marshallExceptions:!e.msie});var i={id:t,flashApi:r,sockets:{},policyPort:e.policyPort||0,policyUrl:e.policyUrl||null};a.socketPools[t]=i,!0===e.msie?i.handler=function(e){if(e.id in i.sockets){var t;switch(e.type){case"connect":t="connected";break;case"close":t="closed";break;case"socketData":t="data";break;default:t="error"}setTimeout((function(){i.sockets[e.id][t](e)}),0)}}:i.handler=function(e){if(e.id in i.sockets){var t;switch(e.type){case"connect":t="connected";break;case"close":t="closed";break;case"socketData":t="data";break;default:t="error"}i.sockets[e.id][t](e)}};var s="forge.net.socketPools['"+t+"'].handler";return r.subscribe("connect",s),r.subscribe("close",s),r.subscribe("socketData",s),r.subscribe("ioError",s),r.subscribe("securityError",s),i.destroy=function(){for(var t in delete a.socketPools[e.flashId],i.sockets)i.sockets[t].destroy();i.sockets={},r.cleanup()},i.createSocket=function(e){e=e||{};var t=r.create(),a={id:t,connected:e.connected||function(e){},closed:e.closed||function(e){},data:e.data||function(e){},error:e.error||function(e){},destroy:function(){r.destroy(t),delete i.sockets[t]},connect:function(e){var n=e.policyUrl||null,a=0;null===n&&0!==e.policyPort&&(a=e.policyPort||i.policyPort),r.connect(t,e.host,e.port,a,n)},close:function(){r.close(t),a.closed({id:a.id,type:"close",bytesAvailable:0})},isConnected:function(){return r.isConnected(t)},send:function(e){return r.send(t,n.util.encode64(e))},receive:function(e){var a=r.receive(t,e).rval;return null===a?null:n.util.decode64(a)},bytesAvailable:function(){return r.getBytesAvailable(t)}};return i.sockets[t]=a,a},i},a.destroySocketPool=function(e){e.flashId in a.socketPools&&a.socketPools[e.flashId].destroy()},a.createSocket=function(e){var t=null;e.flashId in a.socketPools&&(t=a.socketPools[e.flashId].createSocket(e));return t}},function(e,t,r){var n=r(0);r(10),r(1);var a=e.exports=n.http=n.http||{},i=function(e){return e.toLowerCase().replace(/(^.)|(-.)/g,(function(e){return e.toUpperCase()}))},s=function(e){return"forge.http."+e.url.protocol.slice(0,-1)+"."+e.url.hostname+"."+e.url.port},o=function(e){if(e.persistCookies)try{var t=n.util.getItem(e.socketPool.flashApi,s(e),"cookies");e.cookies=t||{}}catch(e){}},c=function(e){if(e.persistCookies)try{n.util.setItem(e.socketPool.flashApi,s(e),"cookies",e.cookies)}catch(e){}o(e)},u=function(e,t){t.isConnected()?(t.options.request.connectTime=+new Date,t.connected({type:"connect",id:t.id})):(t.options.request.connectTime=+new Date,t.connect({host:e.url.hostname,port:e.url.port,policyPort:e.policyPort,policyUrl:e.policyUrl}))},l=function(e,t){t.buffer.clear();for(var r=null;null===r&&e.requests.length>0;)(r=e.requests.shift()).request.aborted&&(r=null);null===r?(null!==t.options&&(t.options=null),e.idle.push(t)):(t.retries=1,t.options=r,u(e,t))},p=function(e,t,r){t.options=null,t.connected=function(r){if(null===t.options)l(e,t);else{var n=t.options.request;if(n.connectTime=+new Date-n.connectTime,r.socket=t,t.options.connected(r),n.aborted)t.close();else{var a=n.toString();n.body&&(a+=n.body),n.time=+new Date,t.send(a),n.time=+new Date-n.time,t.options.response.time=+new Date,t.sending=!0}}},t.closed=function(r){if(t.sending)t.sending=!1,t.retries>0?(--t.retries,u(e,t)):t.error({id:t.id,type:"ioError",message:"Connection closed during send. Broken pipe.",bytesAvailable:0});else{var n=t.options.response;n.readBodyUntilClose&&(n.time=+new Date-n.time,n.bodyReceived=!0,t.options.bodyReady({request:t.options.request,response:n,socket:t})),t.options.closed(r),l(e,t)}},t.data=function(r){if(t.sending=!1,t.options.request.aborted)t.close();else{var n=t.options.response,a=t.receive(r.bytesAvailable);if(null!==a)if(t.buffer.putBytes(a),n.headerReceived||(n.readHeader(t.buffer),n.headerReceived&&t.options.headerReady({request:t.options.request,response:n,socket:t})),n.headerReceived&&!n.bodyReceived&&n.readBody(t.buffer),n.bodyReceived)t.options.bodyReady({request:t.options.request,response:n,socket:t}),-1!=(n.getField("Connection")||"").indexOf("close")||"HTTP/1.0"===n.version&&null===n.getField("Keep-Alive")?t.close():l(e,t)}},t.error=function(e){t.options.error({type:e.type,message:e.message,request:t.options.request,response:t.options.response,socket:t}),t.close()},r?((t=n.tls.wrapSocket({sessionId:null,sessionCache:{},caStore:r.caStore,cipherSuites:r.cipherSuites,socket:t,virtualHost:r.virtualHost,verify:r.verify,getCertificate:r.getCertificate,getPrivateKey:r.getPrivateKey,getSignature:r.getSignature,deflate:r.deflate||null,inflate:r.inflate||null})).options=null,t.buffer=n.util.createBuffer(),e.sockets.push(t),r.prime?t.connect({host:e.url.hostname,port:e.url.port,policyPort:e.policyPort,policyUrl:e.policyUrl}):e.idle.push(t)):(t.buffer=n.util.createBuffer(),e.sockets.push(t),e.idle.push(t))},f=function(e){var t=!1;if(-1!==e.maxAge){var r=y(new Date);e.created+e.maxAge<=r&&(t=!0)}return t};a.createClient=function(e){var t,r=null;e.caCerts&&(r=n.pki.createCaStore(e.caCerts)),e.url=e.url||window.location.protocol+"//"+window.location.host;try{t=new URL(e.url)}catch(t){var i=new Error("Invalid url.");throw i.details={url:e.url},i}e.connections=e.connections||1;var l=e.socketPool,h={url:t,socketPool:l,policyPort:e.policyPort,policyUrl:e.policyUrl,requests:[],sockets:[],idle:[],secure:"https:"===t.protocol,cookies:{},persistCookies:void 0===e.persistCookies||e.persistCookies};o(h);var d=null;h.secure&&(d={caStore:r,cipherSuites:e.cipherSuites||null,virtualHost:e.virtualHost||t.hostname,verify:e.verify||function(e,t,r,n){if(0===r&&!0===t){var a=n[r].subject.getField("CN");null!==a&&h.url.hostname===a.value||(t={message:"Certificate common name does not match url host."})}return t},getCertificate:e.getCertificate||null,getPrivateKey:e.getPrivateKey||null,getSignature:e.getSignature||null,prime:e.primeTlsSockets||!1},null!==l.flashApi&&(d.deflate=function(e){return n.util.deflate(l.flashApi,e,!0)},d.inflate=function(e){return n.util.inflate(l.flashApi,e,!0)}));for(var g=0;g100?(t.body=n.util.deflate(t.flashApi,t.body),t.bodyDeflated=!0,t.setField("Content-Encoding","deflate"),t.setField("Content-Length",t.body.length)):null!==t.body&&t.setField("Content-Length",t.body.length);var e=t.method.toUpperCase()+" "+t.path+" "+t.version+"\r\n";for(var r in t.fields)for(var a=t.fields[r],i=0;i=3)){var o=new Error("Invalid http response header.");throw o.details={line:r},o}a.version=n[0],a.code=parseInt(n[1],10),a.message=n.slice(2).join(" ")}else 0===r.length?a.headerReceived=!0:s(r);return a.headerReceived};return a.readBody=function(e){var o=a.getField("Content-Length"),c=a.getField("Transfer-Encoding");if(null!==o&&(o=parseInt(o)),null!==o&&o>=0)a.body=a.body||"",a.body+=e.getBytes(o),a.bodyReceived=a.body.length===o;else if(null!==c){if(-1==c.indexOf("chunked")){var u=new Error("Unknown Transfer-Encoding.");throw u.details={transferEncoding:c},u}a.body=a.body||"",function(e){for(var n="";null!==n&&e.length()>0;)if(t>0){if(t+2>e.length())break;a.body+=e.getBytes(t),e.getBytes(2),t=0}else if(r)for(n=i(e);null!==n;)n.length>0?(s(n),n=i(e)):(a.bodyReceived=!0,n=null);else null!==(n=i(e))&&(t=parseInt(n.split(";",1)[0],16),r=0===t);a.bodyReceived}(e)}else null!==o&&o<0||null===o&&null!==a.getField("Content-Type")?(a.body=a.body||"",a.body+=e.getBytes(),a.readBodyUntilClose=!0):(a.body=null,a.bodyReceived=!0);return a.bodyReceived&&(a.time=+new Date-a.time),null!==a.flashApi&&a.bodyReceived&&null!==a.body&&"deflate"===a.getField("Content-Encoding")&&(a.body=n.util.inflate(a.flashApi,a.body)),a.bodyReceived},a.getCookies=function(){var e=[];if("Set-Cookie"in a.fields)for(var t=a.fields["Set-Cookie"],r=+new Date/1e3,n=/\s*([^=]*)=?([^;]*)(;|$)/g,i=0;i0;)o.push(u%i),u=u/i|0}for(a=0;0===e[a]&&a=0;--a)n+=t[o[a]]}else n=function(e,t){var r=0,n=t.length,a=t.charAt(0),i=[0];for(r=0;r0;)i.push(o%n),o=o/n|0}var c="";for(r=0;0===e.at(r)&&r=0;--r)c+=t[i[r]];return c}(e,t);if(r){var l=new RegExp(".{1,"+r+"}","g");n=n.match(l).join("\r\n")}return n},r.decode=function(e,t){if("string"!=typeof e)throw new TypeError('"input" must be a string.');if("string"!=typeof t)throw new TypeError('"alphabet" must be a string.');var r=n[t];if(!r){r=n[t]=[];for(var a=0;a>=8;for(;l>0;)o.push(255&l),l>>=8}for(var p=0;e[p]===s&&p=a.Versions.TLS_1_1.minor&&c.output.putBytes(r),c.update(e.fragment),c.finish(o)&&(e.fragment=c.output,e.length=e.fragment.length(),i=!0),i}function o(e,t,r){if(!r){var n=e-t.length()%e;t.fillWithByte(n-1,n)}return!0}function c(e,t,r){var n=!0;if(r){for(var a=t.length(),i=t.last(),s=a-1-i;s=o?(e.fragment=s.output.getBytes(l-o),u=s.output.getBytes(o)):e.fragment=s.output.getBytes(),e.fragment=n.util.createBuffer(e.fragment),e.length=e.fragment.length();var p=t.macFunction(t.macKey,t.sequenceNumber,e);return t.updateSequenceNumber(),i=function(e,t,r){var a=n.hmac.create();return a.start("SHA1",e),a.update(t),t=a.digest().getBytes(),a.start(null,null),a.update(r),r=a.digest().getBytes(),t===r}(t.macKey,u,p)&&i}a.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA={id:[0,47],name:"TLS_RSA_WITH_AES_128_CBC_SHA",initSecurityParameters:function(e){e.bulk_cipher_algorithm=a.BulkCipherAlgorithm.aes,e.cipher_type=a.CipherType.block,e.enc_key_length=16,e.block_length=16,e.fixed_iv_length=16,e.record_iv_length=16,e.mac_algorithm=a.MACAlgorithm.hmac_sha1,e.mac_length=20,e.mac_key_length=20},initConnectionState:i},a.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA={id:[0,53],name:"TLS_RSA_WITH_AES_256_CBC_SHA",initSecurityParameters:function(e){e.bulk_cipher_algorithm=a.BulkCipherAlgorithm.aes,e.cipher_type=a.CipherType.block,e.enc_key_length=32,e.block_length=16,e.fixed_iv_length=16,e.record_iv_length=16,e.mac_algorithm=a.MACAlgorithm.hmac_sha1,e.mac_length=20,e.mac_key_length=20},initConnectionState:i}},function(e,t,r){var 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c="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",u=[62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,64,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51],l="123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";i.encode64=function(e,t){for(var r,a,n,i="",s="",o=0;o>2),i+=c.charAt((3&r)<<4|a>>4),isNaN(a)?i+="==":(i+=c.charAt((15&a)<<2|n>>6),i+=isNaN(n)?"=":c.charAt(63&n)),t&&i.length>t&&(s+=i.substr(0,t)+"\r\n",i=i.substr(t));return s+=i},i.decode64=function(e){e=e.replace(/[^A-Za-z0-9\+\/\=]/g,"");for(var t,r,a,n,i="",s=0;s>4),64!==a&&(i+=String.fromCharCode((15&r)<<4|a>>2),64!==n&&(i+=String.fromCharCode((3&a)<<6|n)));return i},i.encodeUtf8=function(e){return unescape(encodeURIComponent(e))},i.decodeUtf8=function(e){return 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t=i.createBuffer(),r=0;rr[a].end-r[a].start&&(a=r.length-1)):r.push({start:c,end:c})}t.push(s)}if(r.length>0){var u=r[a];u.end-u.start>0&&(t.splice(u.start,u.end-u.start+1,""),0===u.start&&t.unshift(""),7===u.end&&t.push(""))}return t.join(":")},i.estimateCores=function(e,t){if("function"==typeof e&&(t=e,e={}),e=e||{},"cores"in i&&!e.update)return t(null,i.cores);if("undefined"!=typeof navigator&&"hardwareConcurrency"in navigator&&navigator.hardwareConcurrency>0)return i.cores=navigator.hardwareConcurrency,t(null,i.cores);if("undefined"==typeof Worker)return i.cores=1,t(null,i.cores);if("undefined"==typeof Blob)return i.cores=2,t(null,i.cores);var r=URL.createObjectURL(new Blob(["(",function(){self.addEventListener("message",(function(e){for(var t=Date.now(),r=t+4;Date.now()o.st&&n.stn.st&&o.stt){var a=new Error("Too few bytes to parse DER.");throw 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g=t.read,v=r,m=0;if(l===n.Type.BITSTRING&&(i(t,r,1),m=t.getByte(),r--),0===m)try{o=t.length();var C=e(t,r,a+1,{strict:!0,decodeBitStrings:!0}),E=o-t.length();r-=E,l==n.Type.BITSTRING&&E++;var S=C.tagClass;E!==h||S!==n.Class.UNIVERSAL&&S!==n.Class.CONTEXT_SPECIFIC||(p=[C])}catch(e){}void 0===p&&(t.read=g,r=v)}if(void 0===p){if(void 0===h){if(s.strict)throw new Error("Non-constructed ASN.1 object of indefinite length.");h=r}if(l===n.Type.BMPSTRING)for(p="";h>0;h-=2)i(t,r,2),p+=String.fromCharCode(t.getInt16()),r-=2;else p=t.getBytes(h),r-=h}var T=void 0===f?null:{bitStringContents:f};return n.create(u,l,y,p,T)}(e,e.length(),0,t);if(t.parseAllBytes&&0!==e.length()){var o=new Error("Unparsed DER bytes remain after ASN.1 parsing.");throw o.byteCount=r,o.remaining=e.length(),o}return s},n.toDer=function(e){var t=a.util.createBuffer(),r=e.tagClass|e.type,i=a.util.createBuffer(),s=!1;if("bitStringContents"in e&&(s=!0,e.original&&(s=n.equals(e,e.original))),s)i.putBytes(e.bitStringContents);else if(e.composed){e.constructed?r|=32:i.putByte(0);for(var o=0;o1&&(0===e.value.charCodeAt(0)&&0==(128&e.value.charCodeAt(1))||255===e.value.charCodeAt(0)&&128==(128&e.value.charCodeAt(1)))?i.putBytes(e.value.substr(1)):i.putBytes(e.value);if(t.putByte(r),i.length()<=127)t.putByte(127&i.length());else{var c=i.length(),u="";do{u+=String.fromCharCode(255&c),c>>>=8}while(c>0);t.putByte(128|u.length);for(o=u.length-1;o>=0;--o)t.putByte(u.charCodeAt(o))}return t.putBuffer(i),t},n.oidToDer=function(e){var t,r,n,i,s=e.split("."),o=a.util.createBuffer();o.putByte(40*parseInt(s[0],10)+parseInt(s[1],10));for(var c=2;c>>=7,t||(i|=128),r.push(i),t=!1}while(n>0);for(var u=r.length-1;u>=0;--u)o.putByte(r[u])}return o},n.derToOid=function(e){var t;"string"==typeof e&&(e=a.util.createBuffer(e));var r=e.getByte();t=Math.floor(r/40)+"."+r%40;for(var 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p=e.length-5,f=e.charAt(p);"+"!==f&&"-"!==f||(u=60*parseInt(e.substr(p+1,2),10)+parseInt(e.substr(p+4,2),10),u*=6e4,"+"===f&&(u*=-1),l=!0);return"."===e.charAt(14)&&(c=1e3*parseFloat(e.substr(14),10)),l?(t.setUTCFullYear(r,a,n),t.setUTCHours(i,s,o,c),t.setTime(+t+u)):(t.setFullYear(r,a,n),t.setHours(i,s,o,c)),t},n.dateToUtcTime=function(e){if("string"==typeof e)return e;var t="",r=[];r.push((""+e.getUTCFullYear()).substr(2)),r.push(""+(e.getUTCMonth()+1)),r.push(""+e.getUTCDate()),r.push(""+e.getUTCHours()),r.push(""+e.getUTCMinutes()),r.push(""+e.getUTCSeconds());for(var a=0;a=-128&&e<128)return t.putSignedInt(e,8);if(e>=-32768&&e<32768)return t.putSignedInt(e,16);if(e>=-8388608&&e<8388608)return t.putSignedInt(e,24);if(e>=-2147483648&&e<2147483648)return t.putSignedInt(e,32);var r=new Error("Integer too large; max is 32-bits.");throw r.integer=e,r},n.derToInteger=function(e){"string"==typeof e&&(e=a.util.createBuffer(e));var t=8*e.length();if(t>32)throw new Error("Integer too large; max is 32-bits.");return e.getSignedInt(t)},n.validate=function(e,t,r,i){var s=!1;if(e.tagClass!==t.tagClass&&void 0!==t.tagClass||e.type!==t.type&&void 0!==t.type)i&&(e.tagClass!==t.tagClass&&i.push("["+t.name+'] Expected tag class "'+t.tagClass+'", got "'+e.tagClass+'"'),e.type!==t.type&&i.push("["+t.name+'] Expected type "'+t.type+'", got "'+e.type+'"'));else if(e.constructed===t.constructed||void 0===t.constructed){if(s=!0,t.value&&a.util.isArray(t.value))for(var o=0,c=0;s&&c0&&(i+="\n");for(var o="",c=0;c1?i+="0x"+a.util.bytesToHex(e.value.slice(1)):i+="(none)",e.value.length>0){var f=e.value.charCodeAt(0);1==f?i+=" (1 unused bit shown)":f>1&&(i+=" ("+f+" unused bits shown)")}}else if(e.type===n.Type.OCTETSTRING)s.test(e.value)||(i+="("+e.value+") "),i+="0x"+a.util.bytesToHex(e.value);else if(e.type===n.Type.UTF8)try{i+=a.util.decodeUtf8(e.value)}catch(t){if("URI malformed"!==t.message)throw t;i+="0x"+a.util.bytesToHex(e.value)+" (malformed UTF8)"}else e.type===n.Type.PRINTABLESTRING||e.type===n.Type.IA5String?i+=e.value:s.test(e.value)?i+="0x"+a.util.bytesToHex(e.value):0===e.value.length?i+="[null]":i+=e.value}return i}},function(e,t,r){var a=r(0);e.exports=a.md=a.md||{},a.md.algorithms=a.md.algorithms||{}},function(e,t,r){var a=r(0);function n(e,t){a.cipher.registerAlgorithm(e,(function(){return new a.aes.Algorithm(e,t)}))}r(13),r(19),r(1),e.exports=a.aes=a.aes||{},a.aes.startEncrypting=function(e,t,r,a){var n=d({key:e,output:r,decrypt:!1,mode:a});return n.start(t),n},a.aes.createEncryptionCipher=function(e,t){return d({key:e,output:null,decrypt:!1,mode:t})},a.aes.startDecrypting=function(e,t,r,a){var n=d({key:e,output:r,decrypt:!0,mode:a});return n.start(t),n},a.aes.createDecryptionCipher=function(e,t){return d({key:e,output:null,decrypt:!0,mode:t})},a.aes.Algorithm=function(e,t){l||p();var r=this;r.name=e,r.mode=new t({blockSize:16,cipher:{encrypt:function(e,t){return h(r._w,e,t,!1)},decrypt:function(e,t){return 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n,o,l,p,f,h,d,y,g,v,m,C,E=e.length/4-1;a?(n=u[0],o=u[1],l=u[2],p=u[3],f=s):(n=c[0],o=c[1],l=c[2],p=c[3],f=i),h=t[0]^e[0],d=t[a?3:1]^e[1],y=t[2]^e[2],g=t[a?1:3]^e[3];for(var S=3,T=1;T>>24]^o[d>>>16&255]^l[y>>>8&255]^p[255&g]^e[++S],m=n[d>>>24]^o[y>>>16&255]^l[g>>>8&255]^p[255&h]^e[++S],C=n[y>>>24]^o[g>>>16&255]^l[h>>>8&255]^p[255&d]^e[++S],g=n[g>>>24]^o[h>>>16&255]^l[d>>>8&255]^p[255&y]^e[++S],h=v,d=m,y=C;r[0]=f[h>>>24]<<24^f[d>>>16&255]<<16^f[y>>>8&255]<<8^f[255&g]^e[++S],r[a?3:1]=f[d>>>24]<<24^f[y>>>16&255]<<16^f[g>>>8&255]<<8^f[255&h]^e[++S],r[2]=f[y>>>24]<<24^f[g>>>16&255]<<16^f[h>>>8&255]<<8^f[255&d]^e[++S],r[a?1:3]=f[g>>>24]<<24^f[h>>>16&255]<<16^f[d>>>8&255]<<8^f[255&y]^e[++S]}function d(e){var t,r="AES-"+((e=e||{}).mode||"CBC").toUpperCase(),n=(t=e.decrypt?a.cipher.createDecipher(r,e.key):a.cipher.createCipher(r,e.key)).start;return t.start=function(e,r){var i=null;r instanceof a.util.ByteBuffer&&(i=r,r={}),(r=r||{}).output=i,r.iv=e,n.call(t,r)},t}},function(e,t,r){var a=r(0);a.pki=a.pki||{};var n=e.exports=a.pki.oids=a.oids=a.oids||{};function i(e,t){n[e]=t,n[t]=e}function 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a=r(0);r(1);var n=e.exports=a.pem=a.pem||{};function i(e){for(var t=e.name+": ",r=[],a=function(e,t){return" "+t},n=0;n65&&-1!==s){var o=t[s];","===o?(++s,t=t.substr(0,s)+"\r\n "+t.substr(s)):t=t.substr(0,s)+"\r\n"+o+t.substr(s+1),i=n-s-1,s=-1,++n}else" "!==t[n]&&"\t"!==t[n]&&","!==t[n]||(s=n);return t}function s(e){return e.replace(/^\s+/,"")}n.encode=function(e,t){t=t||{};var r,n="-----BEGIN "+e.type+"-----\r\n";if(e.procType&&(n+=i(r={name:"Proc-Type",values:[String(e.procType.version),e.procType.type]})),e.contentDomain&&(n+=i(r={name:"Content-Domain",values:[e.contentDomain]})),e.dekInfo&&(r={name:"DEK-Info",values:[e.dekInfo.algorithm]},e.dekInfo.parameters&&r.values.push(e.dekInfo.parameters),n+=i(r)),e.headers)for(var s=0;st.blockLength&&(t.start(),t.update(s.bytes()),s=t.digest()),r=a.util.createBuffer(),n=a.util.createBuffer(),u=s.length();for(c=0;c>>0,c>>>0];for(var u=n.fullMessageLength.length-1;u>=0;--u)n.fullMessageLength[u]+=c[1],c[1]=c[0]+(n.fullMessageLength[u]/4294967296>>>0),n.fullMessageLength[u]=n.fullMessageLength[u]>>>0,c[0]=c[1]/4294967296>>>0;return t.putBytes(i),o(e,r,t),(t.read>2048||0===t.length())&&t.compact(),n},n.digest=function(){var s=a.util.createBuffer();s.putBytes(t.bytes());var c,u=n.fullMessageLength[n.fullMessageLength.length-1]+n.messageLengthSize&n.blockLength-1;s.putBytes(i.substr(0,n.blockLength-u));for(var l=8*n.fullMessageLength[0],p=0;p>>0,s.putInt32(l>>>0),l=c>>>0;s.putInt32(l);var f={h0:e.h0,h1:e.h1,h2:e.h2,h3:e.h3,h4:e.h4};o(f,r,s);var h=a.util.createBuffer();return h.putInt32(f.h0),h.putInt32(f.h1),h.putInt32(f.h2),h.putInt32(f.h3),h.putInt32(f.h4),h},n};var i=null,s=!1;function o(e,t,r){for(var a,n,i,s,o,c,u,l=r.length();l>=64;){for(n=e.h0,i=e.h1,s=e.h2,o=e.h3,c=e.h4,u=0;u<16;++u)a=r.getInt32(),t[u]=a,a=(n<<5|n>>>27)+(o^i&(s^o))+c+1518500249+a,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=n,n=a;for(;u<20;++u)a=(a=t[u-3]^t[u-8]^t[u-14]^t[u-16])<<1|a>>>31,t[u]=a,a=(n<<5|n>>>27)+(o^i&(s^o))+c+1518500249+a,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=n,n=a;for(;u<32;++u)a=(a=t[u-3]^t[u-8]^t[u-14]^t[u-16])<<1|a>>>31,t[u]=a,a=(n<<5|n>>>27)+(i^s^o)+c+1859775393+a,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=n,n=a;for(;u<40;++u)a=(a=t[u-6]^t[u-16]^t[u-28]^t[u-32])<<2|a>>>30,t[u]=a,a=(n<<5|n>>>27)+(i^s^o)+c+1859775393+a,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=n,n=a;for(;u<60;++u)a=(a=t[u-6]^t[u-16]^t[u-28]^t[u-32])<<2|a>>>30,t[u]=a,a=(n<<5|n>>>27)+(i&s|o&(i^s))+c+2400959708+a,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=n,n=a;for(;u<80;++u)a=(a=t[u-6]^t[u-16]^t[u-28]^t[u-32])<<2|a>>>30,t[u]=a,a=(n<<5|n>>>27)+(i^s^o)+c+3395469782+a,c=o,o=s,s=(i<<30|i>>>2)>>>0,i=n,n=a;e.h0=e.h0+n|0,e.h1=e.h1+i|0,e.h2=e.h2+s|0,e.h3=e.h3+o|0,e.h4=e.h4+c|0,l-=64}}},function(e,t,r){var a=r(0);function n(e,t){a.cipher.registerAlgorithm(e,(function(){return new a.des.Algorithm(e,t)}))}r(13),r(19),r(1),e.exports=a.des=a.des||{},a.des.startEncrypting=function(e,t,r,a){var n=d({key:e,output:r,decrypt:!1,mode:a||(null===t?"ECB":"CBC")});return n.start(t),n},a.des.createEncryptionCipher=function(e,t){return d({key:e,output:null,decrypt:!1,mode:t})},a.des.startDecrypting=function(e,t,r,a){var n=d({key:e,output:r,decrypt:!0,mode:a||(null===t?"ECB":"CBC")});return n.start(t),n},a.des.createDecryptionCipher=function(e,t){return d({key:e,output:null,decrypt:!0,mode:t})},a.des.Algorithm=function(e,t){var r=this;r.name=e,r.mode=new t({blockSize:8,cipher:{encrypt:function(e,t){return h(r._keys,e,t,!1)},decrypt:function(e,t){return h(r._keys,e,t,!0)}}}),r._init=!1},a.des.Algorithm.prototype.initialize=function(e){if(!this._init){var t=a.util.createBuffer(e.key);if(0===this.name.indexOf("3DES")&&24!==t.length())throw new Error("Invalid Triple-DES key size: 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t,r=[0,4,536870912,536870916,65536,65540,536936448,536936452,512,516,536871424,536871428,66048,66052,536936960,536936964],a=[0,1,1048576,1048577,67108864,67108865,68157440,68157441,256,257,1048832,1048833,67109120,67109121,68157696,68157697],n=[0,8,2048,2056,16777216,16777224,16779264,16779272,0,8,2048,2056,16777216,16777224,16779264,16779272],i=[0,2097152,134217728,136314880,8192,2105344,134225920,136323072,131072,2228224,134348800,136445952,139264,2236416,134356992,136454144],s=[0,262144,16,262160,0,262144,16,262160,4096,266240,4112,266256,4096,266240,4112,266256],o=[0,1024,32,1056,0,1024,32,1056,33554432,33555456,33554464,33555488,33554432,33555456,33554464,33555488],c=[0,268435456,524288,268959744,2,268435458,524290,268959746,0,268435456,524288,268959744,2,268435458,524290,268959746],u=[0,65536,2048,67584,536870912,536936448,536872960,536938496,131072,196608,133120,198656,537001984,537067520,537004032,537069568],l=[0,262144,0,262144,2,262146,2,262146,33554432,33816576,33554432,33816576,33554434,33816578,33554434,33816578],p=[0,268435456,8,268435464,0,268435456,8,268435464,1024,268436480,1032,268436488,1024,268436480,1032,268436488],f=[0,32,0,32,1048576,1048608,1048576,1048608,8192,8224,8192,8224,1056768,1056800,1056768,1056800],h=[0,16777216,512,16777728,2097152,18874368,2097664,18874880,67108864,83886080,67109376,83886592,69206016,85983232,69206528,85983744],d=[0,4096,134217728,134221824,524288,528384,134742016,134746112,16,4112,134217744,134221840,524304,528400,134742032,134746128],y=[0,4,256,260,0,4,256,260,1,5,257,261,1,5,257,261],g=e.length()>8?3:1,v=[],m=[0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0],C=0,E=0;E>>4^T))<<4,S^=t=65535&((T^=t)>>>-16^S),S^=(t=858993459&(S>>>2^(T^=t<<-16)))<<2,S^=t=65535&((T^=t)>>>-16^S),S^=(t=1431655765&(S>>>1^(T^=t<<-16)))<<1,S^=t=16711935&((T^=t)>>>8^S),t=(S^=(t=1431655765&(S>>>1^(T^=t<<8)))<<1)<<8|(T^=t)>>>20&240,S=T<<24|T<<8&16711680|T>>>8&65280|T>>>24&240,T=t;for(var I=0;I>>26,T=T<<2|T>>>26):(S=S<<1|S>>>27,T=T<<1|T>>>27);var A=r[(S&=-15)>>>28]|a[S>>>24&15]|n[S>>>20&15]|i[S>>>16&15]|s[S>>>12&15]|o[S>>>8&15]|c[S>>>4&15],B=u[(T&=-15)>>>28]|l[T>>>24&15]|p[T>>>20&15]|f[T>>>16&15]|h[T>>>12&15]|d[T>>>8&15]|y[T>>>4&15];t=65535&(B>>>16^A),v[C++]=A^t,v[C++]=B^t<<16}}return v}(t),this._init=!0}},n("DES-ECB",a.cipher.modes.ecb),n("DES-CBC",a.cipher.modes.cbc),n("DES-CFB",a.cipher.modes.cfb),n("DES-OFB",a.cipher.modes.ofb),n("DES-CTR",a.cipher.modes.ctr),n("3DES-ECB",a.cipher.modes.ecb),n("3DES-CBC",a.cipher.modes.cbc),n("3DES-CFB",a.cipher.modes.cfb),n("3DES-OFB",a.cipher.modes.ofb),n("3DES-CTR",a.cipher.modes.ctr);var i=[16843776,0,65536,16843780,16842756,66564,4,65536,1024,16843776,16843780,1024,16778244,16842756,16777216,4,1028,16778240,16778240,66560,66560,16842752,16842752,16778244,65540,16777220,16777220,65540,0,1028,66564,16777216,65536,16843780,4,16842752,16843776,16777216,16777216,1024,16842756,65536,66560,16777220,1024,4,16778244,66564,16843780,65540,16842752,16778244,16777220,1028,66564,16843776,1028,16778240,16778240,0,65540,66560,0,16842756],s=[-2146402272,-2147450880,32768,1081376,1048576,32,-2146435040,-2147450848,-2147483616,-2146402272,-2146402304,-2147483648,-2147450880,1048576,32,-2146435040,1081344,1048608,-2147450848,0,-2147483648,32768,1081376,-2146435072,1048608,-2147483616,0,1081344,32800,-2146402304,-2146435072,32800,0,1081376,-2146435040,1048576,-2147450848,-2146435072,-2146402304,32768,-2146435072,-2147450880,32,-2146402272,1081376,32,32768,-2147483648,32800,-2146402304,1048576,-2147483616,1048608,-2147450848,-2147483616,1048608,1081344,0,-2147450880,32800,-2147483648,-2146435040,-2146402272,1081344],o=[520,134349312,0,134348808,134218240,0,131592,134218240,131080,134217736,134217736,131072,134349320,131080,134348800,520,134217728,8,134349312,512,131584,134348800,134348808,131592,134218248,131584,131072,134218248,8,134349320,512,134217728,134349312,134217728,131080,520,131072,134349312,134218240,0,512,131080,134349320,134218240,134217736,512,0,134348808,134218248,131072,134217728,134349320,8,131592,131584,134217736,134348800,134218248,520,134348800,131592,8,134348808,131584],c=[8396801,8321,8321,128,8396928,8388737,8388609,8193,0,8396800,8396800,8396929,129,0,8388736,8388609,1,8192,8388608,8396801,128,8388608,8193,8320,8388737,1,8320,8388736,8192,8396928,8396929,129,8388736,8388609,8396800,8396929,129,0,0,8396800,8320,8388736,8388737,1,8396801,8321,8321,128,8396929,129,1,8192,8388609,8193,8396928,8388737,8193,8320,8388608,8396801,128,8388608,8192,8396928],u=[256,34078976,34078720,1107296512,524288,256,1073741824,34078720,1074266368,524288,33554688,1074266368,1107296512,1107820544,524544,1073741824,33554432,1074266112,1074266112,0,1073742080,1107820800,1107820800,33554688,1107820544,1073742080,0,1107296256,34078976,33554432,1107296256,524544,524288,1107296512,256,33554432,1073741824,34078720,1107296512,1074266368,33554688,1073741824,1107820544,34078976,1074266368,256,33554432,1107820544,1107820800,524544,1107296256,1107820800,34078720,0,1074266112,1107296256,524544,33554688,1073742080,524288,0,1074266112,34078976,1073742080],l=[536870928,541065216,16384,541081616,541065216,16,541081616,4194304,536887296,4210704,4194304,536870928,4194320,536887296,536870912,16400,0,4194320,536887312,16384,4210688,536887312,16,541065232,541065232,0,4210704,541081600,16400,4210688,541081600,536870912,536887296,16,541065232,4210688,541081616,4194304,16400,536870928,4194304,536887296,536870912,16400,536870928,541081616,4210688,541065216,4210704,541081600,0,541065232,16,16384,541065216,4210704,16384,4194320,536887312,0,541081600,536870912,4194320,536887312],p=[2097152,69206018,67110914,0,2048,67110914,2099202,69208064,69208066,2097152,0,67108866,2,67108864,69206018,2050,67110912,2099202,2097154,67110912,67108866,69206016,69208064,2097154,69206016,2048,2050,69208066,2099200,2,67108864,2099200,67108864,2099200,2097152,67110914,67110914,69206018,69206018,2,2097154,67108864,67110912,2097152,69208064,2050,2099202,69208064,2050,67108866,69208066,69206016,2099200,0,2,69208066,0,2099202,69206016,2048,67108866,67110912,2048,2097154],f=[268439616,4096,262144,268701760,268435456,268439616,64,268435456,262208,268697600,268701760,266240,268701696,266304,4096,64,268697600,268435520,268439552,4160,266240,262208,268697664,268701696,4160,0,0,268697664,268435520,268439552,266304,262144,266304,262144,268701696,4096,64,268697664,4096,266304,268439552,64,268435520,268697600,268697664,268435456,262144,268439616,0,268701760,262208,268435520,268697600,268439552,268439616,0,268701760,266240,266240,4160,4160,262208,268435456,268701696];function h(e,t,r,a){var n,h,d=32===e.length?3:9;n=3===d?a?[30,-2,-2]:[0,32,2]:a?[94,62,-2,32,64,2,30,-2,-2]:[0,32,2,62,30,-2,64,96,2];var y=t[0],g=t[1];y^=(h=252645135&(y>>>4^g))<<4,y^=(h=65535&(y>>>16^(g^=h)))<<16,y^=h=858993459&((g^=h)>>>2^y),y^=h=16711935&((g^=h<<2)>>>8^y),y=(y^=(h=1431655765&(y>>>1^(g^=h<<8)))<<1)<<1|y>>>31,g=(g^=h)<<1|g>>>31;for(var v=0;v>>4|g<<28)^e[E+1];h=y,y=g,g=h^(s[S>>>24&63]|c[S>>>16&63]|l[S>>>8&63]|f[63&S]|i[T>>>24&63]|o[T>>>16&63]|u[T>>>8&63]|p[63&T])}h=y,y=g,g=h}g=g>>>1|g<<31,g^=h=1431655765&((y=y>>>1|y<<31)>>>1^g),g^=(h=16711935&(g>>>8^(y^=h<<1)))<<8,g^=(h=858993459&(g>>>2^(y^=h)))<<2,g^=h=65535&((y^=h)>>>16^g),g^=h=252645135&((y^=h<<16)>>>4^g),y^=h<<4,r[0]=y,r[1]=g}function d(e){var t,r="DES-"+((e=e||{}).mode||"CBC").toUpperCase(),n=(t=e.decrypt?a.cipher.createDecipher(r,e.key):a.cipher.createCipher(r,e.key)).start;return t.start=function(e,r){var i=null;r instanceof a.util.ByteBuffer&&(i=r,r={}),(r=r||{}).output=i,r.iv=e,n.call(t,r)},t}},function(e,t,r){var a=r(0);if(r(3),r(12),r(6),r(26),r(27),r(2),r(1),void 0===n)var n=a.jsbn.BigInteger;var i=a.util.isNodejs?r(16):null,s=a.asn1,o=a.util;a.pki=a.pki||{},e.exports=a.pki.rsa=a.rsa=a.rsa||{};var c=a.pki,u=[6,4,2,4,2,4,6,2],l={name:"PrivateKeyInfo",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"PrivateKeyInfo.version",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyVersion"},{name:"PrivateKeyInfo.privateKeyAlgorithm",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"AlgorithmIdentifier.algorithm",tagClass:s.Class.UNIVERSAL,type:s.Type.OID,constructed:!1,capture:"privateKeyOid"}]},{name:"PrivateKeyInfo",tagClass:s.Class.UNIVERSAL,type:s.Type.OCTETSTRING,constructed:!1,capture:"privateKey"}]},p={name:"RSAPrivateKey",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"RSAPrivateKey.version",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyVersion"},{name:"RSAPrivateKey.modulus",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyModulus"},{name:"RSAPrivateKey.publicExponent",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyPublicExponent"},{name:"RSAPrivateKey.privateExponent",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyPrivateExponent"},{name:"RSAPrivateKey.prime1",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyPrime1"},{name:"RSAPrivateKey.prime2",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyPrime2"},{name:"RSAPrivateKey.exponent1",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyExponent1"},{name:"RSAPrivateKey.exponent2",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyExponent2"},{name:"RSAPrivateKey.coefficient",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"privateKeyCoefficient"}]},f={name:"RSAPublicKey",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"RSAPublicKey.modulus",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"publicKeyModulus"},{name:"RSAPublicKey.exponent",tagClass:s.Class.UNIVERSAL,type:s.Type.INTEGER,constructed:!1,capture:"publicKeyExponent"}]},h=a.pki.rsa.publicKeyValidator={name:"SubjectPublicKeyInfo",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,captureAsn1:"subjectPublicKeyInfo",value:[{name:"SubjectPublicKeyInfo.AlgorithmIdentifier",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"AlgorithmIdentifier.algorithm",tagClass:s.Class.UNIVERSAL,type:s.Type.OID,constructed:!1,capture:"publicKeyOid"}]},{name:"SubjectPublicKeyInfo.subjectPublicKey",tagClass:s.Class.UNIVERSAL,type:s.Type.BITSTRING,constructed:!1,value:[{name:"SubjectPublicKeyInfo.subjectPublicKey.RSAPublicKey",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,optional:!0,captureAsn1:"rsaPublicKey"}]}]},d={name:"DigestInfo",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"DigestInfo.DigestAlgorithm",tagClass:s.Class.UNIVERSAL,type:s.Type.SEQUENCE,constructed:!0,value:[{name:"DigestInfo.DigestAlgorithm.algorithmIdentifier",tagClass:s.Class.UNIVERSAL,type:s.Type.OID,constructed:!1,capture:"algorithmIdentifier"},{name:"DigestInfo.DigestAlgorithm.parameters",tagClass:s.Class.UNIVERSAL,type:s.Type.NULL,capture:"parameters",optional:!0,constructed:!1}]},{name:"DigestInfo.digest",tagClass:s.Class.UNIVERSAL,type:s.Type.OCTETSTRING,constructed:!1,capture:"digest"}]},y=function(e){var t;if(!(e.algorithm in c.oids)){var r=new Error("Unknown message digest algorithm.");throw r.algorithm=e.algorithm,r}t=c.oids[e.algorithm];var a=s.oidToDer(t).getBytes(),n=s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[]),i=s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[]);i.value.push(s.create(s.Class.UNIVERSAL,s.Type.OID,!1,a)),i.value.push(s.create(s.Class.UNIVERSAL,s.Type.NULL,!1,""));var o=s.create(s.Class.UNIVERSAL,s.Type.OCTETSTRING,!1,e.digest().getBytes());return n.value.push(i),n.value.push(o),s.toDer(n).getBytes()},g=function(e,t,r){if(r)return e.modPow(t.e,t.n);if(!t.p||!t.q)return e.modPow(t.d,t.n);var i;t.dP||(t.dP=t.d.mod(t.p.subtract(n.ONE))),t.dQ||(t.dQ=t.d.mod(t.q.subtract(n.ONE))),t.qInv||(t.qInv=t.q.modInverse(t.p));do{i=new n(a.util.bytesToHex(a.random.getBytes(t.n.bitLength()/8)),16)}while(i.compareTo(t.n)>=0||!i.gcd(t.n).equals(n.ONE));for(var s=(e=e.multiply(i.modPow(t.e,t.n)).mod(t.n)).mod(t.p).modPow(t.dP,t.p),o=e.mod(t.q).modPow(t.dQ,t.q);s.compareTo(o)<0;)s=s.add(t.p);var c=s.subtract(o).multiply(t.qInv).mod(t.p).multiply(t.q).add(o);return c=c.multiply(i.modInverse(t.n)).mod(t.n)};function v(e,t,r){var n=a.util.createBuffer(),i=Math.ceil(t.n.bitLength()/8);if(e.length>i-11){var s=new Error("Message is too long for PKCS#1 v1.5 padding.");throw s.length=e.length,s.max=i-11,s}n.putByte(0),n.putByte(r);var o,c=i-3-e.length;if(0===r||1===r){o=0===r?0:255;for(var u=0;u0;){var l=0,p=a.random.getBytes(c);for(u=0;u1;){if(255!==s.getByte()){--s.read;break}++u}else if(2===c)for(u=0;s.length()>1;){if(0===s.getByte()){--s.read;break}++u}if(0!==s.getByte()||u!==i-3-s.length())throw new Error("Encryption block is invalid.");return s.getBytes()}function C(e,t,r){"function"==typeof t&&(r=t,t={});var i={algorithm:{name:(t=t||{}).algorithm||"PRIMEINC",options:{workers:t.workers||2,workLoad:t.workLoad||100,workerScript:t.workerScript}}};function s(){o(e.pBits,(function(t,a){return t?r(t):(e.p=a,null!==e.q?u(t,e.q):void o(e.qBits,u))}))}function o(e,t){a.prime.generateProbablePrime(e,i,t)}function u(t,a){if(t)return r(t);if(e.q=a,e.p.compareTo(e.q)<0){var i=e.p;e.p=e.q,e.q=i}if(0!==e.p.subtract(n.ONE).gcd(e.e).compareTo(n.ONE))return e.p=null,void s();if(0!==e.q.subtract(n.ONE).gcd(e.e).compareTo(n.ONE))return e.q=null,void o(e.qBits,u);if(e.p1=e.p.subtract(n.ONE),e.q1=e.q.subtract(n.ONE),e.phi=e.p1.multiply(e.q1),0!==e.phi.gcd(e.e).compareTo(n.ONE))return e.p=e.q=null,void s();if(e.n=e.p.multiply(e.q),e.n.bitLength()!==e.bits)return e.q=null,void o(e.qBits,u);var l=e.e.modInverse(e.phi);e.keys={privateKey:c.rsa.setPrivateKey(e.n,e.e,l,e.p,e.q,l.mod(e.p1),l.mod(e.q1),e.q.modInverse(e.p)),publicKey:c.rsa.setPublicKey(e.n,e.e)},r(null,e.keys)}"prng"in t&&(i.prng=t.prng),s()}function E(e){var t=e.toString(16);t[0]>="8"&&(t="00"+t);var r=a.util.hexToBytes(t);return r.length>1&&(0===r.charCodeAt(0)&&0==(128&r.charCodeAt(1))||255===r.charCodeAt(0)&&128==(128&r.charCodeAt(1)))?r.substr(1):r}function S(e){return e<=100?27:e<=150?18:e<=200?15:e<=250?12:e<=300?9:e<=350?8:e<=400?7:e<=500?6:e<=600?5:e<=800?4:e<=1250?3:2}function T(e){return a.util.isNodejs&&"function"==typeof i[e]}function I(e){return void 0!==o.globalScope&&"object"==typeof o.globalScope.crypto&&"object"==typeof o.globalScope.crypto.subtle&&"function"==typeof o.globalScope.crypto.subtle[e]}function A(e){return void 0!==o.globalScope&&"object"==typeof o.globalScope.msCrypto&&"object"==typeof o.globalScope.msCrypto.subtle&&"function"==typeof o.globalScope.msCrypto.subtle[e]}function B(e){for(var t=a.util.hexToBytes(e.toString(16)),r=new Uint8Array(t.length),n=0;n0;)l.putByte(0),--p;return l.putBytes(a.util.hexToBytes(u)),l.getBytes()},c.rsa.decrypt=function(e,t,r,i){var s=Math.ceil(t.n.bitLength()/8);if(e.length!==s){var o=new Error("Encrypted message length is invalid.");throw o.length=e.length,o.expected=s,o}var c=new n(a.util.createBuffer(e).toHex(),16);if(c.compareTo(t.n)>=0)throw new Error("Encrypted message is invalid.");for(var u=g(c,t,r).toString(16),l=a.util.createBuffer(),p=s-Math.ceil(u.length/2);p>0;)l.putByte(0),--p;return l.putBytes(a.util.hexToBytes(u)),!1!==i?m(l.getBytes(),t,r):l.getBytes()},c.rsa.createKeyPairGenerationState=function(e,t,r){"string"==typeof e&&(e=parseInt(e,10)),e=e||2048;var i,s=(r=r||{}).prng||a.random,o={nextBytes:function(e){for(var t=s.getBytesSync(e.length),r=0;r>1,pBits:e-(e>>1),pqState:0,num:null,keys:null}).e.fromInt(i.eInt),i},c.rsa.stepKeyPairGenerationState=function(e,t){"algorithm"in e||(e.algorithm="PRIMEINC");var r=new n(null);r.fromInt(30);for(var a,i=0,s=function(e,t){return e|t},o=+new Date,l=0;null===e.keys&&(t<=0||lp?e.pqState=0:e.num.isProbablePrime(S(e.num.bitLength()))?++e.pqState:e.num.dAddOffset(u[i++%8],0):2===e.pqState?e.pqState=0===e.num.subtract(n.ONE).gcd(e.e).compareTo(n.ONE)?3:0:3===e.pqState&&(e.pqState=0,null===e.p?e.p=e.num:e.q=e.num,null!==e.p&&null!==e.q&&++e.state,e.num=null)}else if(1===e.state)e.p.compareTo(e.q)<0&&(e.num=e.p,e.p=e.q,e.q=e.num),++e.state;else if(2===e.state)e.p1=e.p.subtract(n.ONE),e.q1=e.q.subtract(n.ONE),e.phi=e.p1.multiply(e.q1),++e.state;else if(3===e.state)0===e.phi.gcd(e.e).compareTo(n.ONE)?++e.state:(e.p=null,e.q=null,e.state=0);else if(4===e.state)e.n=e.p.multiply(e.q),e.n.bitLength()===e.bits?++e.state:(e.q=null,e.state=0);else if(5===e.state){var h=e.e.modInverse(e.phi);e.keys={privateKey:c.rsa.setPrivateKey(e.n,e.e,h,e.p,e.q,h.mod(e.p1),h.mod(e.q1),e.q.modInverse(e.p)),publicKey:c.rsa.setPublicKey(e.n,e.e)}}l+=(a=+new Date)-o,o=a}return null!==e.keys},c.rsa.generateKeyPair=function(e,t,r,n){if(1===arguments.length?"object"==typeof e?(r=e,e=void 0):"function"==typeof e&&(n=e,e=void 0):2===arguments.length?"number"==typeof e?"function"==typeof t?(n=t,t=void 0):"number"!=typeof t&&(r=t,t=void 0):(r=e,n=t,e=void 0,t=void 0):3===arguments.length&&("number"==typeof t?"function"==typeof r&&(n=r,r=void 0):(n=r,r=t,t=void 0)),r=r||{},void 0===e&&(e=r.bits||2048),void 0===t&&(t=r.e||65537),!a.options.usePureJavaScript&&!r.prng&&e>=256&&e<=16384&&(65537===t||3===t))if(n){if(T("generateKeyPair"))return i.generateKeyPair("rsa",{modulusLength:e,publicExponent:t,publicKeyEncoding:{type:"spki",format:"pem"},privateKeyEncoding:{type:"pkcs8",format:"pem"}},(function(e,t,r){if(e)return n(e);n(null,{privateKey:c.privateKeyFromPem(r),publicKey:c.publicKeyFromPem(t)})}));if(I("generateKey")&&I("exportKey"))return o.globalScope.crypto.subtle.generateKey({name:"RSASSA-PKCS1-v1_5",modulusLength:e,publicExponent:B(t),hash:{name:"SHA-256"}},!0,["sign","verify"]).then((function(e){return o.globalScope.crypto.subtle.exportKey("pkcs8",e.privateKey)})).then(void 0,(function(e){n(e)})).then((function(e){if(e){var t=c.privateKeyFromAsn1(s.fromDer(a.util.createBuffer(e)));n(null,{privateKey:t,publicKey:c.setRsaPublicKey(t.n,t.e)})}}));if(A("generateKey")&&A("exportKey")){var u=o.globalScope.msCrypto.subtle.generateKey({name:"RSASSA-PKCS1-v1_5",modulusLength:e,publicExponent:B(t),hash:{name:"SHA-256"}},!0,["sign","verify"]);return u.oncomplete=function(e){var t=e.target.result,r=o.globalScope.msCrypto.subtle.exportKey("pkcs8",t.privateKey);r.oncomplete=function(e){var t=e.target.result,r=c.privateKeyFromAsn1(s.fromDer(a.util.createBuffer(t)));n(null,{privateKey:r,publicKey:c.setRsaPublicKey(r.n,r.e)})},r.onerror=function(e){n(e)}},void(u.onerror=function(e){n(e)})}}else if(T("generateKeyPairSync")){var l=i.generateKeyPairSync("rsa",{modulusLength:e,publicExponent:t,publicKeyEncoding:{type:"spki",format:"pem"},privateKeyEncoding:{type:"pkcs8",format:"pem"}});return{privateKey:c.privateKeyFromPem(l.privateKey),publicKey:c.publicKeyFromPem(l.publicKey)}}var p=c.rsa.createKeyPairGenerationState(e,t,r);if(!n)return c.rsa.stepKeyPairGenerationState(p,0),p.keys;C(p,r,n)},c.setRsaPublicKey=c.rsa.setPublicKey=function(e,t){var r={n:e,e:t,encrypt:function(e,t,n){if("string"==typeof t?t=t.toUpperCase():void 0===t&&(t="RSAES-PKCS1-V1_5"),"RSAES-PKCS1-V1_5"===t)t={encode:function(e,t,r){return v(e,t,2).getBytes()}};else if("RSA-OAEP"===t||"RSAES-OAEP"===t)t={encode:function(e,t){return a.pkcs1.encode_rsa_oaep(t,e,n)}};else if(-1!==["RAW","NONE","NULL",null].indexOf(t))t={encode:function(e){return e}};else if("string"==typeof t)throw new Error('Unsupported encryption scheme: "'+t+'".');var i=t.encode(e,r,!0);return c.rsa.encrypt(i,r,!0)},verify:function(e,t,n,i){"string"==typeof n?n=n.toUpperCase():void 0===n&&(n="RSASSA-PKCS1-V1_5"),void 0===i&&(i={_parseAllDigestBytes:!0}),"_parseAllDigestBytes"in i||(i._parseAllDigestBytes=!0),"RSASSA-PKCS1-V1_5"===n?n={verify:function(e,t){t=m(t,r,!0);var n=s.fromDer(t,{parseAllBytes:i._parseAllDigestBytes}),o={},c=[];if(!s.validate(n,d,o,c))throw(u=new Error("ASN.1 object does not contain a valid RSASSA-PKCS1-v1_5 DigestInfo value.")).errors=c,u;var u,l=s.derToOid(o.algorithmIdentifier);if(l!==a.oids.md2&&l!==a.oids.md5&&l!==a.oids.sha1&&l!==a.oids.sha224&&l!==a.oids.sha256&&l!==a.oids.sha384&&l!==a.oids.sha512&&l!==a.oids["sha512-224"]&&l!==a.oids["sha512-256"])throw(u=new Error("Unknown RSASSA-PKCS1-v1_5 DigestAlgorithm identifier.")).oid=l,u;if((l===a.oids.md2||l===a.oids.md5)&&!("parameters"in o))throw new Error("ASN.1 object does not contain a valid RSASSA-PKCS1-v1_5 DigestInfo value. Missing algorithm identifer NULL parameters.");return e===o.digest}}:"NONE"!==n&&"NULL"!==n&&null!==n||(n={verify:function(e,t){return e===(t=m(t,r,!0))}});var o=c.rsa.decrypt(t,r,!0,!1);return n.verify(e,o,r.n.bitLength())}};return r},c.setRsaPrivateKey=c.rsa.setPrivateKey=function(e,t,r,n,i,s,o,u){var l={n:e,e:t,d:r,p:n,q:i,dP:s,dQ:o,qInv:u,decrypt:function(e,t,r){"string"==typeof t?t=t.toUpperCase():void 0===t&&(t="RSAES-PKCS1-V1_5");var n=c.rsa.decrypt(e,l,!1,!1);if("RSAES-PKCS1-V1_5"===t)t={decode:m};else if("RSA-OAEP"===t||"RSAES-OAEP"===t)t={decode:function(e,t){return a.pkcs1.decode_rsa_oaep(t,e,r)}};else{if(-1===["RAW","NONE","NULL",null].indexOf(t))throw new Error('Unsupported encryption scheme: "'+t+'".');t={decode:function(e){return e}}}return t.decode(n,l,!1)},sign:function(e,t){var r=!1;"string"==typeof t&&(t=t.toUpperCase()),void 0===t||"RSASSA-PKCS1-V1_5"===t?(t={encode:y},r=1):"NONE"!==t&&"NULL"!==t&&null!==t||(t={encode:function(){return e}},r=1);var a=t.encode(e,l.n.bitLength());return c.rsa.encrypt(a,l,r)}};return l},c.wrapRsaPrivateKey=function(e){return s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,s.integerToDer(0).getBytes()),s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.OID,!1,s.oidToDer(c.oids.rsaEncryption).getBytes()),s.create(s.Class.UNIVERSAL,s.Type.NULL,!1,"")]),s.create(s.Class.UNIVERSAL,s.Type.OCTETSTRING,!1,s.toDer(e).getBytes())])},c.privateKeyFromAsn1=function(e){var t,r,i,o,u,f,h,d,y={},g=[];if(s.validate(e,l,y,g)&&(e=s.fromDer(a.util.createBuffer(y.privateKey))),y={},g=[],!s.validate(e,p,y,g)){var v=new Error("Cannot read private key. ASN.1 object does not contain an RSAPrivateKey.");throw v.errors=g,v}return t=a.util.createBuffer(y.privateKeyModulus).toHex(),r=a.util.createBuffer(y.privateKeyPublicExponent).toHex(),i=a.util.createBuffer(y.privateKeyPrivateExponent).toHex(),o=a.util.createBuffer(y.privateKeyPrime1).toHex(),u=a.util.createBuffer(y.privateKeyPrime2).toHex(),f=a.util.createBuffer(y.privateKeyExponent1).toHex(),h=a.util.createBuffer(y.privateKeyExponent2).toHex(),d=a.util.createBuffer(y.privateKeyCoefficient).toHex(),c.setRsaPrivateKey(new n(t,16),new n(r,16),new n(i,16),new n(o,16),new n(u,16),new n(f,16),new n(h,16),new n(d,16))},c.privateKeyToAsn1=c.privateKeyToRSAPrivateKey=function(e){return s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,s.integerToDer(0).getBytes()),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.n)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.e)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.d)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.p)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.q)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.dP)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.dQ)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.qInv))])},c.publicKeyFromAsn1=function(e){var t={},r=[];if(s.validate(e,h,t,r)){var i,o=s.derToOid(t.publicKeyOid);if(o!==c.oids.rsaEncryption)throw(i=new Error("Cannot read public key. Unknown OID.")).oid=o,i;e=t.rsaPublicKey}if(r=[],!s.validate(e,f,t,r))throw(i=new Error("Cannot read public key. ASN.1 object does not contain an RSAPublicKey.")).errors=r,i;var u=a.util.createBuffer(t.publicKeyModulus).toHex(),l=a.util.createBuffer(t.publicKeyExponent).toHex();return c.setRsaPublicKey(new n(u,16),new n(l,16))},c.publicKeyToAsn1=c.publicKeyToSubjectPublicKeyInfo=function(e){return s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.OID,!1,s.oidToDer(c.oids.rsaEncryption).getBytes()),s.create(s.Class.UNIVERSAL,s.Type.NULL,!1,"")]),s.create(s.Class.UNIVERSAL,s.Type.BITSTRING,!1,[c.publicKeyToRSAPublicKey(e)])])},c.publicKeyToRSAPublicKey=function(e){return s.create(s.Class.UNIVERSAL,s.Type.SEQUENCE,!0,[s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.n)),s.create(s.Class.UNIVERSAL,s.Type.INTEGER,!1,E(e.e))])}},function(e,t,r){var a,n=r(0);e.exports=n.jsbn=n.jsbn||{};function i(e,t,r){this.data=[],null!=e&&("number"==typeof e?this.fromNumber(e,t,r):null==t&&"string"!=typeof e?this.fromString(e,256):this.fromString(e,t))}function s(){return new i(null)}function o(e,t,r,a,n,i){for(var s=16383&t,o=t>>14;--i>=0;){var c=16383&this.data[e],u=this.data[e++]>>14,l=o*c+u*s;n=((c=s*c+((16383&l)<<14)+r.data[a]+n)>>28)+(l>>14)+o*u,r.data[a++]=268435455&c}return n}n.jsbn.BigInteger=i,"undefined"==typeof navigator?(i.prototype.am=o,a=28):"Microsoft Internet Explorer"==navigator.appName?(i.prototype.am=function(e,t,r,a,n,i){for(var s=32767&t,o=t>>15;--i>=0;){var c=32767&this.data[e],u=this.data[e++]>>15,l=o*c+u*s;n=((c=s*c+((32767&l)<<15)+r.data[a]+(1073741823&n))>>>30)+(l>>>15)+o*u+(n>>>30),r.data[a++]=1073741823&c}return n},a=30):"Netscape"!=navigator.appName?(i.prototype.am=function(e,t,r,a,n,i){for(;--i>=0;){var s=t*this.data[e++]+r.data[a]+n;n=Math.floor(s/67108864),r.data[a++]=67108863&s}return n},a=26):(i.prototype.am=o,a=28),i.prototype.DB=a,i.prototype.DM=(1<>>16)&&(e=t,r+=16),0!=(t=e>>8)&&(e=t,r+=8),0!=(t=e>>4)&&(e=t,r+=4),0!=(t=e>>2)&&(e=t,r+=2),0!=(t=e>>1)&&(e=t,r+=1),r}function y(e){this.m=e}function g(e){this.m=e,this.mp=e.invDigit(),this.mpl=32767&this.mp,this.mph=this.mp>>15,this.um=(1<>=16,t+=16),0==(255&e)&&(e>>=8,t+=8),0==(15&e)&&(e>>=4,t+=4),0==(3&e)&&(e>>=2,t+=2),0==(1&e)&&++t,t}function T(e){for(var t=0;0!=e;)e&=e-1,++t;return t}function I(){}function A(e){return e}function B(e){this.r2=s(),this.q3=s(),i.ONE.dlShiftTo(2*e.t,this.r2),this.mu=this.r2.divide(e),this.m=e}y.prototype.convert=function(e){return e.s<0||e.compareTo(this.m)>=0?e.mod(this.m):e},y.prototype.revert=function(e){return e},y.prototype.reduce=function(e){e.divRemTo(this.m,null,e)},y.prototype.mulTo=function(e,t,r){e.multiplyTo(t,r),this.reduce(r)},y.prototype.sqrTo=function(e,t){e.squareTo(t),this.reduce(t)},g.prototype.convert=function(e){var t=s();return e.abs().dlShiftTo(this.m.t,t),t.divRemTo(this.m,null,t),e.s<0&&t.compareTo(i.ZERO)>0&&this.m.subTo(t,t),t},g.prototype.revert=function(e){var t=s();return e.copyTo(t),this.reduce(t),t},g.prototype.reduce=function(e){for(;e.t<=this.mt2;)e.data[e.t++]=0;for(var t=0;t>15)*this.mpl&this.um)<<15)&e.DM;for(r=t+this.m.t,e.data[r]+=this.m.am(0,a,e,t,0,this.m.t);e.data[r]>=e.DV;)e.data[r]-=e.DV,e.data[++r]++}e.clamp(),e.drShiftTo(this.m.t,e),e.compareTo(this.m)>=0&&e.subTo(this.m,e)},g.prototype.mulTo=function(e,t,r){e.multiplyTo(t,r),this.reduce(r)},g.prototype.sqrTo=function(e,t){e.squareTo(t),this.reduce(t)},i.prototype.copyTo=function(e){for(var t=this.t-1;t>=0;--t)e.data[t]=this.data[t];e.t=this.t,e.s=this.s},i.prototype.fromInt=function(e){this.t=1,this.s=e<0?-1:0,e>0?this.data[0]=e:e<-1?this.data[0]=e+this.DV:this.t=0},i.prototype.fromString=function(e,t){var r;if(16==t)r=4;else if(8==t)r=3;else if(256==t)r=8;else if(2==t)r=1;else if(32==t)r=5;else{if(4!=t)return void this.fromRadix(e,t);r=2}this.t=0,this.s=0;for(var a=e.length,n=!1,s=0;--a>=0;){var o=8==r?255&e[a]:f(e,a);o<0?"-"==e.charAt(a)&&(n=!0):(n=!1,0==s?this.data[this.t++]=o:s+r>this.DB?(this.data[this.t-1]|=(o&(1<>this.DB-s):this.data[this.t-1]|=o<=this.DB&&(s-=this.DB))}8==r&&0!=(128&e[0])&&(this.s=-1,s>0&&(this.data[this.t-1]|=(1<0&&this.data[this.t-1]==e;)--this.t},i.prototype.dlShiftTo=function(e,t){var r;for(r=this.t-1;r>=0;--r)t.data[r+e]=this.data[r];for(r=e-1;r>=0;--r)t.data[r]=0;t.t=this.t+e,t.s=this.s},i.prototype.drShiftTo=function(e,t){for(var r=e;r=0;--r)t.data[r+s+1]=this.data[r]>>n|o,o=(this.data[r]&i)<=0;--r)t.data[r]=0;t.data[s]=o,t.t=this.t+s+1,t.s=this.s,t.clamp()},i.prototype.rShiftTo=function(e,t){t.s=this.s;var r=Math.floor(e/this.DB);if(r>=this.t)t.t=0;else{var a=e%this.DB,n=this.DB-a,i=(1<>a;for(var s=r+1;s>a;a>0&&(t.data[this.t-r-1]|=(this.s&i)<>=this.DB;if(e.t>=this.DB;a+=this.s}else{for(a+=this.s;r>=this.DB;a-=e.s}t.s=a<0?-1:0,a<-1?t.data[r++]=this.DV+a:a>0&&(t.data[r++]=a),t.t=r,t.clamp()},i.prototype.multiplyTo=function(e,t){var r=this.abs(),a=e.abs(),n=r.t;for(t.t=n+a.t;--n>=0;)t.data[n]=0;for(n=0;n=0;)e.data[r]=0;for(r=0;r=t.DV&&(e.data[r+t.t]-=t.DV,e.data[r+t.t+1]=1)}e.t>0&&(e.data[e.t-1]+=t.am(r,t.data[r],e,2*r,0,1)),e.s=0,e.clamp()},i.prototype.divRemTo=function(e,t,r){var a=e.abs();if(!(a.t<=0)){var n=this.abs();if(n.t0?(a.lShiftTo(l,o),n.lShiftTo(l,r)):(a.copyTo(o),n.copyTo(r));var p=o.t,f=o.data[p-1];if(0!=f){var h=f*(1<1?o.data[p-2]>>this.F2:0),y=this.FV/h,g=(1<=0&&(r.data[r.t++]=1,r.subTo(E,r)),i.ONE.dlShiftTo(p,E),E.subTo(o,o);o.t=0;){var S=r.data[--m]==f?this.DM:Math.floor(r.data[m]*y+(r.data[m-1]+v)*g);if((r.data[m]+=o.am(0,S,r,C,0,p))0&&r.rShiftTo(l,r),c<0&&i.ZERO.subTo(r,r)}}},i.prototype.invDigit=function(){if(this.t<1)return 0;var e=this.data[0];if(0==(1&e))return 0;var t=3&e;return(t=(t=(t=(t=t*(2-(15&e)*t)&15)*(2-(255&e)*t)&255)*(2-((65535&e)*t&65535))&65535)*(2-e*t%this.DV)%this.DV)>0?this.DV-t:-t},i.prototype.isEven=function(){return 0==(this.t>0?1&this.data[0]:this.s)},i.prototype.exp=function(e,t){if(e>4294967295||e<1)return i.ONE;var r=s(),a=s(),n=t.convert(this),o=d(e)-1;for(n.copyTo(r);--o>=0;)if(t.sqrTo(r,a),(e&1<0)t.mulTo(a,n,r);else{var c=r;r=a,a=c}return t.revert(r)},i.prototype.toString=function(e){if(this.s<0)return"-"+this.negate().toString(e);var t;if(16==e)t=4;else if(8==e)t=3;else if(2==e)t=1;else if(32==e)t=5;else{if(4!=e)return this.toRadix(e);t=2}var r,a=(1<0)for(o>o)>0&&(n=!0,i=p(r));s>=0;)o>(o+=this.DB-t)):(r=this.data[s]>>(o-=t)&a,o<=0&&(o+=this.DB,--s)),r>0&&(n=!0),n&&(i+=p(r));return n?i:"0"},i.prototype.negate=function(){var e=s();return i.ZERO.subTo(this,e),e},i.prototype.abs=function(){return this.s<0?this.negate():this},i.prototype.compareTo=function(e){var t=this.s-e.s;if(0!=t)return t;var r=this.t;if(0!=(t=r-e.t))return this.s<0?-t:t;for(;--r>=0;)if(0!=(t=this.data[r]-e.data[r]))return t;return 0},i.prototype.bitLength=function(){return this.t<=0?0:this.DB*(this.t-1)+d(this.data[this.t-1]^this.s&this.DM)},i.prototype.mod=function(e){var t=s();return this.abs().divRemTo(e,null,t),this.s<0&&t.compareTo(i.ZERO)>0&&e.subTo(t,t),t},i.prototype.modPowInt=function(e,t){var r;return r=e<256||t.isEven()?new y(t):new g(t),this.exp(e,r)},i.ZERO=h(0),i.ONE=h(1),I.prototype.convert=A,I.prototype.revert=A,I.prototype.mulTo=function(e,t,r){e.multiplyTo(t,r)},I.prototype.sqrTo=function(e,t){e.squareTo(t)},B.prototype.convert=function(e){if(e.s<0||e.t>2*this.m.t)return e.mod(this.m);if(e.compareTo(this.m)<0)return e;var t=s();return e.copyTo(t),this.reduce(t),t},B.prototype.revert=function(e){return e},B.prototype.reduce=function(e){for(e.drShiftTo(this.m.t-1,this.r2),e.t>this.m.t+1&&(e.t=this.m.t+1,e.clamp()),this.mu.multiplyUpperTo(this.r2,this.m.t+1,this.q3),this.m.multiplyLowerTo(this.q3,this.m.t+1,this.r2);e.compareTo(this.r2)<0;)e.dAddOffset(1,this.m.t+1);for(e.subTo(this.r2,e);e.compareTo(this.m)>=0;)e.subTo(this.m,e)},B.prototype.mulTo=function(e,t,r){e.multiplyTo(t,r),this.reduce(r)},B.prototype.sqrTo=function(e,t){e.squareTo(t),this.reduce(t)};var b=[2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509],N=(1<<26)/b[b.length-1];i.prototype.chunkSize=function(e){return Math.floor(Math.LN2*this.DB/Math.log(e))},i.prototype.toRadix=function(e){if(null==e&&(e=10),0==this.signum()||e<2||e>36)return"0";var t=this.chunkSize(e),r=Math.pow(e,t),a=h(r),n=s(),i=s(),o="";for(this.divRemTo(a,n,i);n.signum()>0;)o=(r+i.intValue()).toString(e).substr(1)+o,n.divRemTo(a,n,i);return i.intValue().toString(e)+o},i.prototype.fromRadix=function(e,t){this.fromInt(0),null==t&&(t=10);for(var r=this.chunkSize(t),a=Math.pow(t,r),n=!1,s=0,o=0,c=0;c=r&&(this.dMultiply(a),this.dAddOffset(o,0),s=0,o=0))}s>0&&(this.dMultiply(Math.pow(t,s)),this.dAddOffset(o,0)),n&&i.ZERO.subTo(this,this)},i.prototype.fromNumber=function(e,t,r){if("number"==typeof t)if(e<2)this.fromInt(1);else for(this.fromNumber(e,r),this.testBit(e-1)||this.bitwiseTo(i.ONE.shiftLeft(e-1),m,this),this.isEven()&&this.dAddOffset(1,0);!this.isProbablePrime(t);)this.dAddOffset(2,0),this.bitLength()>e&&this.subTo(i.ONE.shiftLeft(e-1),this);else{var a=new Array,n=7&e;a.length=1+(e>>3),t.nextBytes(a),n>0?a[0]&=(1<>=this.DB;if(e.t>=this.DB;a+=this.s}else{for(a+=this.s;r>=this.DB;a+=e.s}t.s=a<0?-1:0,a>0?t.data[r++]=a:a<-1&&(t.data[r++]=this.DV+a),t.t=r,t.clamp()},i.prototype.dMultiply=function(e){this.data[this.t]=this.am(0,e-1,this,0,0,this.t),++this.t,this.clamp()},i.prototype.dAddOffset=function(e,t){if(0!=e){for(;this.t<=t;)this.data[this.t++]=0;for(this.data[t]+=e;this.data[t]>=this.DV;)this.data[t]-=this.DV,++t>=this.t&&(this.data[this.t++]=0),++this.data[t]}},i.prototype.multiplyLowerTo=function(e,t,r){var a,n=Math.min(this.t+e.t,t);for(r.s=0,r.t=n;n>0;)r.data[--n]=0;for(a=r.t-this.t;n=0;)r.data[a]=0;for(a=Math.max(t-this.t,0);a0)if(0==t)r=this.data[0]%e;else for(var a=this.t-1;a>=0;--a)r=(t*r+this.data[a])%e;return r},i.prototype.millerRabin=function(e){var t=this.subtract(i.ONE),r=t.getLowestSetBit();if(r<=0)return!1;for(var a,n=t.shiftRight(r),s={nextBytes:function(e){for(var t=0;t=0);var c=a.modPow(n,this);if(0!=c.compareTo(i.ONE)&&0!=c.compareTo(t)){for(var u=1;u++>24},i.prototype.shortValue=function(){return 0==this.t?this.s:this.data[0]<<16>>16},i.prototype.signum=function(){return this.s<0?-1:this.t<=0||1==this.t&&this.data[0]<=0?0:1},i.prototype.toByteArray=function(){var e=this.t,t=new Array;t[0]=this.s;var r,a=this.DB-e*this.DB%8,n=0;if(e-- >0)for(a>a)!=(this.s&this.DM)>>a&&(t[n++]=r|this.s<=0;)a<8?(r=(this.data[e]&(1<>(a+=this.DB-8)):(r=this.data[e]>>(a-=8)&255,a<=0&&(a+=this.DB,--e)),0!=(128&r)&&(r|=-256),0==n&&(128&this.s)!=(128&r)&&++n,(n>0||r!=this.s)&&(t[n++]=r);return t},i.prototype.equals=function(e){return 0==this.compareTo(e)},i.prototype.min=function(e){return this.compareTo(e)<0?this:e},i.prototype.max=function(e){return this.compareTo(e)>0?this:e},i.prototype.and=function(e){var t=s();return this.bitwiseTo(e,v,t),t},i.prototype.or=function(e){var t=s();return this.bitwiseTo(e,m,t),t},i.prototype.xor=function(e){var t=s();return this.bitwiseTo(e,C,t),t},i.prototype.andNot=function(e){var t=s();return this.bitwiseTo(e,E,t),t},i.prototype.not=function(){for(var e=s(),t=0;t=this.t?0!=this.s:0!=(this.data[t]&1<1){var p=s();for(a.sqrTo(o[1],p);c<=l;)o[c]=s(),a.mulTo(p,o[c-2],o[c]),c+=2}var f,v,m=e.t-1,C=!0,E=s();for(n=d(e.data[m])-1;m>=0;){for(n>=u?f=e.data[m]>>n-u&l:(f=(e.data[m]&(1<0&&(f|=e.data[m-1]>>this.DB+n-u)),c=r;0==(1&f);)f>>=1,--c;if((n-=c)<0&&(n+=this.DB,--m),C)o[f].copyTo(i),C=!1;else{for(;c>1;)a.sqrTo(i,E),a.sqrTo(E,i),c-=2;c>0?a.sqrTo(i,E):(v=i,i=E,E=v),a.mulTo(E,o[f],i)}for(;m>=0&&0==(e.data[m]&1<=0?(r.subTo(a,r),t&&n.subTo(o,n),s.subTo(c,s)):(a.subTo(r,a),t&&o.subTo(n,o),c.subTo(s,c))}return 0!=a.compareTo(i.ONE)?i.ZERO:c.compareTo(e)>=0?c.subtract(e):c.signum()<0?(c.addTo(e,c),c.signum()<0?c.add(e):c):c},i.prototype.pow=function(e){return this.exp(e,new I)},i.prototype.gcd=function(e){var t=this.s<0?this.negate():this.clone(),r=e.s<0?e.negate():e.clone();if(t.compareTo(r)<0){var a=t;t=r,r=a}var n=t.getLowestSetBit(),i=r.getLowestSetBit();if(i<0)return t;for(n0&&(t.rShiftTo(i,t),r.rShiftTo(i,r));t.signum()>0;)(n=t.getLowestSetBit())>0&&t.rShiftTo(n,t),(n=r.getLowestSetBit())>0&&r.rShiftTo(n,r),t.compareTo(r)>=0?(t.subTo(r,t),t.rShiftTo(1,t)):(r.subTo(t,r),r.rShiftTo(1,r));return i>0&&r.lShiftTo(i,r),r},i.prototype.isProbablePrime=function(e){var t,r=this.abs();if(1==r.t&&r.data[0]<=b[b.length-1]){for(t=0;t>>0,o>>>0];for(var c=n.fullMessageLength.length-1;c>=0;--c)n.fullMessageLength[c]+=o[1],o[1]=o[0]+(n.fullMessageLength[c]/4294967296>>>0),n.fullMessageLength[c]=n.fullMessageLength[c]>>>0,o[0]=o[1]/4294967296>>>0;return t.putBytes(i),l(e,r,t),(t.read>2048||0===t.length())&&t.compact(),n},n.digest=function(){var s=a.util.createBuffer();s.putBytes(t.bytes());var o=n.fullMessageLength[n.fullMessageLength.length-1]+n.messageLengthSize&n.blockLength-1;s.putBytes(i.substr(0,n.blockLength-o));for(var c,u=0,p=n.fullMessageLength.length-1;p>=0;--p)u=(c=8*n.fullMessageLength[p]+u)/4294967296>>>0,s.putInt32Le(c>>>0);var f={h0:e.h0,h1:e.h1,h2:e.h2,h3:e.h3};l(f,r,s);var h=a.util.createBuffer();return h.putInt32Le(f.h0),h.putInt32Le(f.h1),h.putInt32Le(f.h2),h.putInt32Le(f.h3),h},n};var i=null,s=null,o=null,c=null,u=!1;function l(e,t,r){for(var a,n,i,u,l,p,f,h=r.length();h>=64;){for(n=e.h0,i=e.h1,u=e.h2,l=e.h3,f=0;f<16;++f)t[f]=r.getInt32Le(),a=n+(l^i&(u^l))+c[f]+t[f],n=l,l=u,u=i,i+=a<<(p=o[f])|a>>>32-p;for(;f<32;++f)a=n+(u^l&(i^u))+c[f]+t[s[f]],n=l,l=u,u=i,i+=a<<(p=o[f])|a>>>32-p;for(;f<48;++f)a=n+(i^u^l)+c[f]+t[s[f]],n=l,l=u,u=i,i+=a<<(p=o[f])|a>>>32-p;for(;f<64;++f)a=n+(u^(i|~l))+c[f]+t[s[f]],n=l,l=u,u=i,i+=a<<(p=o[f])|a>>>32-p;e.h0=e.h0+n|0,e.h1=e.h1+i|0,e.h2=e.h2+u|0,e.h3=e.h3+l|0,h-=64}}},function(e,t,r){var a=r(0);r(8),r(4),r(1);var n,i=a.pkcs5=a.pkcs5||{};a.util.isNodejs&&!a.options.usePureJavaScript&&(n=r(16)),e.exports=a.pbkdf2=i.pbkdf2=function(e,t,r,i,s,o){if("function"==typeof s&&(o=s,s=null),a.util.isNodejs&&!a.options.usePureJavaScript&&n.pbkdf2&&(null===s||"object"!=typeof s)&&(n.pbkdf2Sync.length>4||!s||"sha1"===s))return"string"!=typeof s&&(s="sha1"),e=Buffer.from(e,"binary"),t=Buffer.from(t,"binary"),o?4===n.pbkdf2Sync.length?n.pbkdf2(e,t,r,i,(function(e,t){if(e)return o(e);o(null,t.toString("binary"))})):n.pbkdf2(e,t,r,i,s,(function(e,t){if(e)return o(e);o(null,t.toString("binary"))})):4===n.pbkdf2Sync.length?n.pbkdf2Sync(e,t,r,i).toString("binary"):n.pbkdf2Sync(e,t,r,i,s).toString("binary");if(null==s&&(s="sha1"),"string"==typeof s){if(!(s in a.md.algorithms))throw new Error("Unknown hash algorithm: "+s);s=a.md[s].create()}var c=s.digestLength;if(i>4294967295*c){var u=new Error("Derived key is too long.");if(o)return o(u);throw u}var l=Math.ceil(i/c),p=i-(l-1)*c,f=a.hmac.create();f.start(s,e);var h,d,y,g="";if(!o){for(var v=1;v<=l;++v){f.start(null,null),f.update(t),f.update(a.util.int32ToBytes(v)),h=y=f.digest().getBytes();for(var m=2;m<=r;++m)f.start(null,null),f.update(y),d=f.digest().getBytes(),h=a.util.xorBytes(h,d,c),y=d;g+=vl)return o(null,g);f.start(null,null),f.update(t),f.update(a.util.int32ToBytes(v)),h=y=f.digest().getBytes(),m=2,E()}function E(){if(m<=r)return f.start(null,null),f.update(y),d=f.digest().getBytes(),h=a.util.xorBytes(h,d,c),y=d,++m,a.util.setImmediate(E);g+=v128)throw new Error('Invalid "nsComment" content.');e.value=n.create(n.Class.UNIVERSAL,n.Type.IA5STRING,!1,e.comment)}else if("subjectKeyIdentifier"===e.name&&t.cert){var h=t.cert.generateSubjectKeyIdentifier();e.subjectKeyIdentifier=h.toHex(),e.value=n.create(n.Class.UNIVERSAL,n.Type.OCTETSTRING,!1,h.getBytes())}else if("authorityKeyIdentifier"===e.name&&t.cert){e.value=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[]);l=e.value.value;if(e.keyIdentifier){var d=!0===e.keyIdentifier?t.cert.generateSubjectKeyIdentifier().getBytes():e.keyIdentifier;l.push(n.create(n.Class.CONTEXT_SPECIFIC,0,!1,d))}if(e.authorityCertIssuer){var y=[n.create(n.Class.CONTEXT_SPECIFIC,4,!0,[v(!0===e.authorityCertIssuer?t.cert.issuer:e.authorityCertIssuer)])];l.push(n.create(n.Class.CONTEXT_SPECIFIC,1,!0,y))}if(e.serialNumber){var g=a.util.hexToBytes(!0===e.serialNumber?t.cert.serialNumber:e.serialNumber);l.push(n.create(n.Class.CONTEXT_SPECIFIC,2,!1,g))}}else if("cRLDistributionPoints"===e.name){e.value=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[]);l=e.value.value;var m,C=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[]),E=n.create(n.Class.CONTEXT_SPECIFIC,0,!0,[]);for(f=0;f2)throw new Error("Cannot read notBefore/notAfter validity times; more than two times were provided in the certificate.");if(p.length<2)throw new Error("Cannot read notBefore/notAfter validity times; they were not provided as either UTCTime or GeneralizedTime.");if(c.validity.notBefore=p[0],c.validity.notAfter=p[1],c.tbsCertificate=r.tbsCertificate,t){c.md=y({signatureOid:c.signatureOid,type:"certificate"});var f=n.toDer(c.tbsCertificate);c.md.update(f.getBytes())}var g=a.md.sha1.create(),v=n.toDer(r.certIssuer);g.update(v.getBytes()),c.issuer.getField=function(e){return h(c.issuer,e)},c.issuer.addField=function(e){m([e]),c.issuer.attributes.push(e)},c.issuer.attributes=i.RDNAttributesAsArray(r.certIssuer),r.certIssuerUniqueId&&(c.issuer.uniqueId=r.certIssuerUniqueId),c.issuer.hash=g.digest().toHex();var C=a.md.sha1.create(),E=n.toDer(r.certSubject);return C.update(E.getBytes()),c.subject.getField=function(e){return h(c.subject,e)},c.subject.addField=function(e){m([e]),c.subject.attributes.push(e)},c.subject.attributes=i.RDNAttributesAsArray(r.certSubject),r.certSubjectUniqueId&&(c.subject.uniqueId=r.certSubjectUniqueId),c.subject.hash=C.digest().toHex(),r.certExtensions?c.extensions=i.certificateExtensionsFromAsn1(r.certExtensions):c.extensions=[],c.publicKey=i.publicKeyFromAsn1(r.subjectPublicKeyInfo),c},i.certificateExtensionsFromAsn1=function(e){for(var t=[],r=0;r1&&(r=c.value.charCodeAt(1),i=c.value.length>2?c.value.charCodeAt(2):0),t.digitalSignature=128==(128&r),t.nonRepudiation=64==(64&r),t.keyEncipherment=32==(32&r),t.dataEncipherment=16==(16&r),t.keyAgreement=8==(8&r),t.keyCertSign=4==(4&r),t.cRLSign=2==(2&r),t.encipherOnly=1==(1&r),t.decipherOnly=128==(128&i)}else if("basicConstraints"===t.name){(c=n.fromDer(t.value)).value.length>0&&c.value[0].type===n.Type.BOOLEAN?t.cA=0!==c.value[0].value.charCodeAt(0):t.cA=!1;var o=null;c.value.length>0&&c.value[0].type===n.Type.INTEGER?o=c.value[0].value:c.value.length>1&&(o=c.value[1].value),null!==o&&(t.pathLenConstraint=n.derToInteger(o))}else if("extKeyUsage"===t.name)for(var c=n.fromDer(t.value),u=0;u1&&(r=c.value.charCodeAt(1)),t.client=128==(128&r),t.server=64==(64&r),t.email=32==(32&r),t.objsign=16==(16&r),t.reserved=8==(8&r),t.sslCA=4==(4&r),t.emailCA=2==(2&r),t.objCA=1==(1&r)}else if("subjectAltName"===t.name||"issuerAltName"===t.name){var p;t.altNames=[];c=n.fromDer(t.value);for(var f=0;f=T&&e0&&s.value.push(i.certificateExtensionsToAsn1(e.extensions)),s},i.getCertificationRequestInfo=function(e){return n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.INTEGER,!1,n.integerToDer(e.version).getBytes()),v(e.subject),i.publicKeyToAsn1(e.publicKey),S(e)])},i.distinguishedNameToAsn1=function(e){return v(e)},i.certificateToAsn1=function(e){var t=e.tbsCertificate||i.getTBSCertificate(e);return n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[t,n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.OID,!1,n.oidToDer(e.signatureOid).getBytes()),E(e.signatureOid,e.signatureParameters)]),n.create(n.Class.UNIVERSAL,n.Type.BITSTRING,!1,String.fromCharCode(0)+e.signature)])},i.certificateExtensionsToAsn1=function(e){var t=n.create(n.Class.CONTEXT_SPECIFIC,3,!0,[]),r=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[]);t.value.push(r);for(var a=0;al.validity.notAfter)&&(c={message:"Certificate is not valid yet or has expired.",error:i.certificateError.certificate_expired,notBefore:l.validity.notBefore,notAfter:l.validity.notAfter,now:s}),null===c){if(null===(p=t[0]||e.getIssuer(l))&&l.isIssuer(l)&&(f=!0,p=l),p){var h=p;a.util.isArray(h)||(h=[h]);for(var d=!1;!d&&h.length>0;){p=h.shift();try{d=p.verify(l)}catch(e){}}d||(c={message:"Certificate signature is invalid.",error:i.certificateError.bad_certificate})}null!==c||p&&!f||e.hasCertificate(l)||(c={message:"Certificate is not trusted.",error:i.certificateError.unknown_ca})}if(null===c&&p&&!l.isIssuer(p)&&(c={message:"Certificate issuer is invalid.",error:i.certificateError.bad_certificate}),null===c)for(var y={keyUsage:!0,basicConstraints:!0},g=0;null===c&&gm.pathLenConstraint&&(c={message:"Certificate basicConstraints pathLenConstraint violated.",error:i.certificateError.bad_certificate})}var E=null===c||c.error,S=r.verify?r.verify(E,u,n):E;if(!0!==S)throw!0===E&&(c={message:"The application rejected the certificate.",error:i.certificateError.bad_certificate}),(S||0===S)&&("object"!=typeof S||a.util.isArray(S)?"string"==typeof S&&(c.error=S):(S.message&&(c.message=S.message),S.error&&(c.error=S.error))),c;c=null,o=!1,++u}while(t.length>0);return!0}},function(e,t,r){var a=r(0);r(2),r(1),(e.exports=a.pss=a.pss||{}).create=function(e){3===arguments.length&&(e={md:arguments[0],mgf:arguments[1],saltLength:arguments[2]});var t,r=e.md,n=e.mgf,i=r.digestLength,s=e.salt||null;if("string"==typeof s&&(s=a.util.createBuffer(s)),"saltLength"in e)t=e.saltLength;else{if(null===s)throw new Error("Salt length not specified or specific salt not given.");t=s.length()}if(null!==s&&s.length()!==t)throw new Error("Given salt length does not match length of given salt.");var o=e.prng||a.random,c={encode:function(e,c){var u,l,p=c-1,f=Math.ceil(p/8),h=e.digest().getBytes();if(f>8*f-p&255;return(E=String.fromCharCode(E.charCodeAt(0)&~S)+E.substr(1))+y+String.fromCharCode(188)},verify:function(e,s,o){var c,u=o-1,l=Math.ceil(u/8);if(s=s.substr(-l),l>8*l-u&255;if(0!=(f.charCodeAt(0)&d))throw new Error("Bits beyond keysize not zero as expected.");var y=n.generate(h,p),g="";for(c=0;c4){var r=e;e=a.util.createBuffer();for(var n=0;n0))return!0;for(var a=0;a0))return!0;for(var a=0;a0)return!1;var r=e.length(),a=e.at(r-1);return!(a>this.blockSize<<2)&&(e.truncate(a),!0)},n.cbc=function(e){e=e||{},this.name="CBC",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=new Array(this._ints),this._outBlock=new Array(this._ints)},n.cbc.prototype.start=function(e){if(null===e.iv){if(!this._prev)throw new Error("Invalid IV parameter.");this._iv=this._prev.slice(0)}else{if(!("iv"in e))throw new Error("Invalid IV parameter.");this._iv=i(e.iv,this.blockSize),this._prev=this._iv.slice(0)}},n.cbc.prototype.encrypt=function(e,t,r){if(e.length()0))return!0;for(var a=0;a0))return!0;for(var a=0;a0)return!1;var r=e.length(),a=e.at(r-1);return!(a>this.blockSize<<2)&&(e.truncate(a),!0)},n.cfb=function(e){e=e||{},this.name="CFB",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=null,this._outBlock=new Array(this._ints),this._partialBlock=new Array(this._ints),this._partialOutput=a.util.createBuffer(),this._partialBytes=0},n.cfb.prototype.start=function(e){if(!("iv"in e))throw new Error("Invalid IV parameter.");this._iv=i(e.iv,this.blockSize),this._inBlock=this._iv.slice(0),this._partialBytes=0},n.cfb.prototype.encrypt=function(e,t,r){var a=e.length();if(0===a)return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&a>=this.blockSize)for(var n=0;n0&&(i=this.blockSize-i),this._partialOutput.clear();for(n=0;n0)e.read-=this.blockSize;else for(n=0;n0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(a-this._partialBytes)),this._partialBytes=0}},n.cfb.prototype.decrypt=function(e,t,r){var a=e.length();if(0===a)return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&a>=this.blockSize)for(var n=0;n0&&(i=this.blockSize-i),this._partialOutput.clear();for(n=0;n0)e.read-=this.blockSize;else for(n=0;n0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(a-this._partialBytes)),this._partialBytes=0}},n.ofb=function(e){e=e||{},this.name="OFB",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=null,this._outBlock=new Array(this._ints),this._partialOutput=a.util.createBuffer(),this._partialBytes=0},n.ofb.prototype.start=function(e){if(!("iv"in e))throw new Error("Invalid IV parameter.");this._iv=i(e.iv,this.blockSize),this._inBlock=this._iv.slice(0),this._partialBytes=0},n.ofb.prototype.encrypt=function(e,t,r){var a=e.length();if(0===e.length())return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&a>=this.blockSize)for(var n=0;n0&&(i=this.blockSize-i),this._partialOutput.clear();for(n=0;n0)e.read-=this.blockSize;else for(n=0;n0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(a-this._partialBytes)),this._partialBytes=0}},n.ofb.prototype.decrypt=n.ofb.prototype.encrypt,n.ctr=function(e){e=e||{},this.name="CTR",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=null,this._outBlock=new Array(this._ints),this._partialOutput=a.util.createBuffer(),this._partialBytes=0},n.ctr.prototype.start=function(e){if(!("iv"in e))throw new Error("Invalid IV parameter.");this._iv=i(e.iv,this.blockSize),this._inBlock=this._iv.slice(0),this._partialBytes=0},n.ctr.prototype.encrypt=function(e,t,r){var a=e.length();if(0===a)return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&a>=this.blockSize)for(var n=0;n0&&(i=this.blockSize-i),this._partialOutput.clear();for(n=0;n0&&(e.read-=this.blockSize),this._partialBytes>0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(a-this._partialBytes)),this._partialBytes=0}s(this._inBlock)},n.ctr.prototype.decrypt=n.ctr.prototype.encrypt,n.gcm=function(e){e=e||{},this.name="GCM",this.cipher=e.cipher,this.blockSize=e.blockSize||16,this._ints=this.blockSize/4,this._inBlock=new Array(this._ints),this._outBlock=new Array(this._ints),this._partialOutput=a.util.createBuffer(),this._partialBytes=0,this._R=3774873600},n.gcm.prototype.start=function(e){if(!("iv"in e))throw new Error("Invalid IV parameter.");var t,r=a.util.createBuffer(e.iv);if(this._cipherLength=0,t="additionalData"in e?a.util.createBuffer(e.additionalData):a.util.createBuffer(),this._tagLength="tagLength"in e?e.tagLength:128,this._tag=null,e.decrypt&&(this._tag=a.util.createBuffer(e.tag).getBytes(),this._tag.length!==this._tagLength/8))throw new Error("Authentication tag does not match tag length.");this._hashBlock=new Array(this._ints),this.tag=null,this._hashSubkey=new Array(this._ints),this.cipher.encrypt([0,0,0,0],this._hashSubkey),this.componentBits=4,this._m=this.generateHashTable(this._hashSubkey,this.componentBits);var n=r.length();if(12===n)this._j0=[r.getInt32(),r.getInt32(),r.getInt32(),1];else{for(this._j0=[0,0,0,0];r.length()>0;)this._j0=this.ghash(this._hashSubkey,this._j0,[r.getInt32(),r.getInt32(),r.getInt32(),r.getInt32()]);this._j0=this.ghash(this._hashSubkey,this._j0,[0,0].concat(o(8*n)))}this._inBlock=this._j0.slice(0),s(this._inBlock),this._partialBytes=0,t=a.util.createBuffer(t),this._aDataLength=o(8*t.length());var i=t.length()%this.blockSize;for(i&&t.fillWithByte(0,this.blockSize-i),this._s=[0,0,0,0];t.length()>0;)this._s=this.ghash(this._hashSubkey,this._s,[t.getInt32(),t.getInt32(),t.getInt32(),t.getInt32()])},n.gcm.prototype.encrypt=function(e,t,r){var a=e.length();if(0===a)return!0;if(this.cipher.encrypt(this._inBlock,this._outBlock),0===this._partialBytes&&a>=this.blockSize){for(var n=0;n0&&(i=this.blockSize-i),this._partialOutput.clear();for(n=0;n0&&this._partialOutput.getBytes(this._partialBytes),i>0&&!r)return e.read-=this.blockSize,t.putBytes(this._partialOutput.getBytes(i-this._partialBytes)),this._partialBytes=i,!0;t.putBytes(this._partialOutput.getBytes(a-this._partialBytes)),this._partialBytes=0}this._s=this.ghash(this._hashSubkey,this._s,this._outBlock),s(this._inBlock)},n.gcm.prototype.decrypt=function(e,t,r){var a=e.length();if(a0))return!0;this.cipher.encrypt(this._inBlock,this._outBlock),s(this._inBlock),this._hashBlock[0]=e.getInt32(),this._hashBlock[1]=e.getInt32(),this._hashBlock[2]=e.getInt32(),this._hashBlock[3]=e.getInt32(),this._s=this.ghash(this._hashSubkey,this._s,this._hashBlock);for(var n=0;n0;--a)t[a]=e[a]>>>1|(1&e[a-1])<<31;t[0]=e[0]>>>1,r&&(t[0]^=this._R)},n.gcm.prototype.tableMultiply=function(e){for(var t=[0,0,0,0],r=0;r<32;++r){var a=e[r/8|0]>>>4*(7-r%8)&15,n=this._m[r][a];t[0]^=n[0],t[1]^=n[1],t[2]^=n[2],t[3]^=n[3]}return t},n.gcm.prototype.ghash=function(e,t,r){return t[0]^=r[0],t[1]^=r[1],t[2]^=r[2],t[3]^=r[3],this.tableMultiply(t)},n.gcm.prototype.generateHashTable=function(e,t){for(var r=8/t,a=4*r,n=16*r,i=new Array(n),s=0;s>>1,n=new Array(r);n[a]=e.slice(0);for(var i=a>>>1;i>0;)this.pow(n[2*i],n[i]=[]),i>>=1;for(i=2;i>1,o=s+(1&e.length),c=e.substr(0,o),u=e.substr(s,o),l=a.util.createBuffer(),p=a.hmac.create();r=t+r;var f=Math.ceil(n/16),h=Math.ceil(n/20);p.start("MD5",c);var d=a.util.createBuffer();l.putBytes(r);for(var y=0;y0&&(u.queue(e,u.createAlert(e,{level:u.Alert.Level.warning,description:u.Alert.Description.no_renegotiation})),u.flush(e)),e.process()},u.parseHelloMessage=function(e,t,r){var n=null,i=e.entity===u.ConnectionEnd.client;if(r<38)e.error(e,{message:i?"Invalid ServerHello message. Message too short.":"Invalid ClientHello message. Message too short.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}});else{var s=t.fragment,c=s.length();if(n={version:{major:s.getByte(),minor:s.getByte()},random:a.util.createBuffer(s.getBytes(32)),session_id:o(s,1),extensions:[]},i?(n.cipher_suite=s.getBytes(2),n.compression_method=s.getByte()):(n.cipher_suites=o(s,2),n.compression_methods=o(s,1)),(c=r-(c-s.length()))>0){for(var l=o(s,2);l.length()>0;)n.extensions.push({type:[l.getByte(),l.getByte()],data:o(l,2)});if(!i)for(var p=0;p0;){if(0!==h.getByte())break;e.session.extensions.server_name.serverNameList.push(o(h,2).getBytes())}}}if(e.session.version&&(n.version.major!==e.session.version.major||n.version.minor!==e.session.version.minor))return e.error(e,{message:"TLS version change is disallowed during renegotiation.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.protocol_version}});if(i)e.session.cipherSuite=u.getCipherSuite(n.cipher_suite);else for(var d=a.util.createBuffer(n.cipher_suites.bytes());d.length()>0&&(e.session.cipherSuite=u.getCipherSuite(d.getBytes(2)),null===e.session.cipherSuite););if(null===e.session.cipherSuite)return e.error(e,{message:"No cipher suites in common.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.handshake_failure},cipherSuite:a.util.bytesToHex(n.cipher_suite)});e.session.compressionMethod=i?n.compression_method:u.CompressionMethod.none}return n},u.createSecurityParameters=function(e,t){var r=e.entity===u.ConnectionEnd.client,a=t.random.bytes(),n=r?e.session.sp.client_random:a,i=r?a:u.createRandom().getBytes();e.session.sp={entity:e.entity,prf_algorithm:u.PRFAlgorithm.tls_prf_sha256,bulk_cipher_algorithm:null,cipher_type:null,enc_key_length:null,block_length:null,fixed_iv_length:null,record_iv_length:null,mac_algorithm:null,mac_length:null,mac_key_length:null,compression_algorithm:e.session.compressionMethod,pre_master_secret:null,master_secret:null,client_random:n,server_random:i}},u.handleServerHello=function(e,t,r){var a=u.parseHelloMessage(e,t,r);if(!e.fail){if(!(a.version.minor<=e.version.minor))return e.error(e,{message:"Incompatible TLS version.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.protocol_version}});e.version.minor=a.version.minor,e.session.version=e.version;var n=a.session_id.bytes();n.length>0&&n===e.session.id?(e.expect=d,e.session.resuming=!0,e.session.sp.server_random=a.random.bytes()):(e.expect=l,e.session.resuming=!1,u.createSecurityParameters(e,a)),e.session.id=n,e.process()}},u.handleClientHello=function(e,t,r){var n=u.parseHelloMessage(e,t,r);if(!e.fail){var i=n.session_id.bytes(),s=null;if(e.sessionCache&&(null===(s=e.sessionCache.getSession(i))?i="":(s.version.major!==n.version.major||s.version.minor>n.version.minor)&&(s=null,i="")),0===i.length&&(i=a.random.getBytes(32)),e.session.id=i,e.session.clientHelloVersion=n.version,e.session.sp={},s)e.version=e.session.version=s.version,e.session.sp=s.sp;else{for(var o,c=1;c0;)n=o(c.certificate_list,3),i=a.asn1.fromDer(n),n=a.pki.certificateFromAsn1(i,!0),l.push(n)}catch(t){return e.error(e,{message:"Could not parse certificate list.",cause:t,send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.bad_certificate}})}var f=e.entity===u.ConnectionEnd.client;!f&&!0!==e.verifyClient||0!==l.length?0===l.length?e.expect=f?p:C:(f?e.session.serverCertificate=l[0]:e.session.clientCertificate=l[0],u.verifyCertificateChain(e,l)&&(e.expect=f?p:C)):e.error(e,{message:f?"No server certificate provided.":"No client certificate provided.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}}),e.process()},u.handleServerKeyExchange=function(e,t,r){if(r>0)return e.error(e,{message:"Invalid key parameters. Only RSA is supported.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.unsupported_certificate}});e.expect=f,e.process()},u.handleClientKeyExchange=function(e,t,r){if(r<48)return e.error(e,{message:"Invalid key parameters. Only RSA is supported.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.unsupported_certificate}});var n=t.fragment,i={enc_pre_master_secret:o(n,2).getBytes()},s=null;if(e.getPrivateKey)try{s=e.getPrivateKey(e,e.session.serverCertificate),s=a.pki.privateKeyFromPem(s)}catch(t){e.error(e,{message:"Could not get private key.",cause:t,send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.internal_error}})}if(null===s)return e.error(e,{message:"No private key set.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.internal_error}});try{var c=e.session.sp;c.pre_master_secret=s.decrypt(i.enc_pre_master_secret);var l=e.session.clientHelloVersion;if(l.major!==c.pre_master_secret.charCodeAt(0)||l.minor!==c.pre_master_secret.charCodeAt(1))throw new Error("TLS version rollback attack detected.")}catch(e){c.pre_master_secret=a.random.getBytes(48)}e.expect=S,null!==e.session.clientCertificate&&(e.expect=E),e.process()},u.handleCertificateRequest=function(e,t,r){if(r<3)return e.error(e,{message:"Invalid CertificateRequest. Message too short.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}});var a=t.fragment,n={certificate_types:o(a,1),certificate_authorities:o(a,2)};e.session.certificateRequest=n,e.expect=h,e.process()},u.handleCertificateVerify=function(e,t,r){if(r<2)return e.error(e,{message:"Invalid CertificateVerify. Message too short.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}});var n=t.fragment;n.read-=4;var i=n.bytes();n.read+=4;var s={signature:o(n,2).getBytes()},c=a.util.createBuffer();c.putBuffer(e.session.md5.digest()),c.putBuffer(e.session.sha1.digest()),c=c.getBytes();try{if(!e.session.clientCertificate.publicKey.verify(c,s.signature,"NONE"))throw new Error("CertificateVerify signature does not match.");e.session.md5.update(i),e.session.sha1.update(i)}catch(t){return e.error(e,{message:"Bad signature in CertificateVerify.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.handshake_failure}})}e.expect=S,e.process()},u.handleServerHelloDone=function(e,t,r){if(r>0)return e.error(e,{message:"Invalid ServerHelloDone message. Invalid length.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.record_overflow}});if(null===e.serverCertificate){var n={message:"No server certificate provided. Not enough security.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.insufficient_security}},i=e.verify(e,n.alert.description,0,[]);if(!0!==i)return(i||0===i)&&("object"!=typeof i||a.util.isArray(i)?"number"==typeof i&&(n.alert.description=i):(i.message&&(n.message=i.message),i.alert&&(n.alert.description=i.alert))),e.error(e,n)}null!==e.session.certificateRequest&&(t=u.createRecord(e,{type:u.ContentType.handshake,data:u.createCertificate(e)}),u.queue(e,t)),t=u.createRecord(e,{type:u.ContentType.handshake,data:u.createClientKeyExchange(e)}),u.queue(e,t),e.expect=v;var s=function(e,t){null!==e.session.certificateRequest&&null!==e.session.clientCertificate&&u.queue(e,u.createRecord(e,{type:u.ContentType.handshake,data:u.createCertificateVerify(e,t)})),u.queue(e,u.createRecord(e,{type:u.ContentType.change_cipher_spec,data:u.createChangeCipherSpec()})),e.state.pending=u.createConnectionState(e),e.state.current.write=e.state.pending.write,u.queue(e,u.createRecord(e,{type:u.ContentType.handshake,data:u.createFinished(e)})),e.expect=d,u.flush(e),e.process()};if(null===e.session.certificateRequest||null===e.session.clientCertificate)return s(e,null);u.getClientSignature(e,s)},u.handleChangeCipherSpec=function(e,t){if(1!==t.fragment.getByte())return e.error(e,{message:"Invalid ChangeCipherSpec message received.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.illegal_parameter}});var r=e.entity===u.ConnectionEnd.client;(e.session.resuming&&r||!e.session.resuming&&!r)&&(e.state.pending=u.createConnectionState(e)),e.state.current.read=e.state.pending.read,(!e.session.resuming&&r||e.session.resuming&&!r)&&(e.state.pending=null),e.expect=r?y:T,e.process()},u.handleFinished=function(e,t,r){var i=t.fragment;i.read-=4;var s=i.bytes();i.read+=4;var o=t.fragment.getBytes();(i=a.util.createBuffer()).putBuffer(e.session.md5.digest()),i.putBuffer(e.session.sha1.digest());var c=e.entity===u.ConnectionEnd.client,l=c?"server finished":"client finished",p=e.session.sp;if((i=n(p.master_secret,l,i.getBytes(),12)).getBytes()!==o)return e.error(e,{message:"Invalid verify_data in Finished message.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.decrypt_error}});e.session.md5.update(s),e.session.sha1.update(s),(e.session.resuming&&c||!e.session.resuming&&!c)&&(u.queue(e,u.createRecord(e,{type:u.ContentType.change_cipher_spec,data:u.createChangeCipherSpec()})),e.state.current.write=e.state.pending.write,e.state.pending=null,u.queue(e,u.createRecord(e,{type:u.ContentType.handshake,data:u.createFinished(e)}))),e.expect=c?g:I,e.handshaking=!1,++e.handshakes,e.peerCertificate=c?e.session.serverCertificate:e.session.clientCertificate,u.flush(e),e.isConnected=!0,e.connected(e),e.process()},u.handleAlert=function(e,t){var r,a=t.fragment,n={level:a.getByte(),description:a.getByte()};switch(n.description){case u.Alert.Description.close_notify:r="Connection closed.";break;case u.Alert.Description.unexpected_message:r="Unexpected message.";break;case u.Alert.Description.bad_record_mac:r="Bad record MAC.";break;case u.Alert.Description.decryption_failed:r="Decryption failed.";break;case u.Alert.Description.record_overflow:r="Record overflow.";break;case u.Alert.Description.decompression_failure:r="Decompression failed.";break;case u.Alert.Description.handshake_failure:r="Handshake failure.";break;case u.Alert.Description.bad_certificate:r="Bad certificate.";break;case u.Alert.Description.unsupported_certificate:r="Unsupported certificate.";break;case u.Alert.Description.certificate_revoked:r="Certificate revoked.";break;case u.Alert.Description.certificate_expired:r="Certificate expired.";break;case u.Alert.Description.certificate_unknown:r="Certificate unknown.";break;case u.Alert.Description.illegal_parameter:r="Illegal parameter.";break;case u.Alert.Description.unknown_ca:r="Unknown certificate authority.";break;case u.Alert.Description.access_denied:r="Access denied.";break;case u.Alert.Description.decode_error:r="Decode error.";break;case u.Alert.Description.decrypt_error:r="Decrypt error.";break;case u.Alert.Description.export_restriction:r="Export restriction.";break;case u.Alert.Description.protocol_version:r="Unsupported protocol version.";break;case u.Alert.Description.insufficient_security:r="Insufficient security.";break;case u.Alert.Description.internal_error:r="Internal error.";break;case u.Alert.Description.user_canceled:r="User canceled.";break;case u.Alert.Description.no_renegotiation:r="Renegotiation not supported.";break;default:r="Unknown error."}if(n.description===u.Alert.Description.close_notify)return e.close();e.error(e,{message:r,send:!1,origin:e.entity===u.ConnectionEnd.client?"server":"client",alert:n}),e.process()},u.handleHandshake=function(e,t){var r=t.fragment,n=r.getByte(),i=r.getInt24();if(i>r.length())return e.fragmented=t,t.fragment=a.util.createBuffer(),r.read-=4,e.process();e.fragmented=null,r.read-=4;var s=r.bytes(i+4);r.read+=4,n in K[e.entity][e.expect]?(e.entity!==u.ConnectionEnd.server||e.open||e.fail||(e.handshaking=!0,e.session={version:null,extensions:{server_name:{serverNameList:[]}},cipherSuite:null,compressionMethod:null,serverCertificate:null,clientCertificate:null,md5:a.md.md5.create(),sha1:a.md.sha1.create()}),n!==u.HandshakeType.hello_request&&n!==u.HandshakeType.certificate_verify&&n!==u.HandshakeType.finished&&(e.session.md5.update(s),e.session.sha1.update(s)),K[e.entity][e.expect][n](e,t,i)):u.handleUnexpected(e,t)},u.handleApplicationData=function(e,t){e.data.putBuffer(t.fragment),e.dataReady(e),e.process()},u.handleHeartbeat=function(e,t){var r=t.fragment,n=r.getByte(),i=r.getInt16(),s=r.getBytes(i);if(n===u.HeartbeatMessageType.heartbeat_request){if(e.handshaking||i>s.length)return e.process();u.queue(e,u.createRecord(e,{type:u.ContentType.heartbeat,data:u.createHeartbeat(u.HeartbeatMessageType.heartbeat_response,s)})),u.flush(e)}else if(n===u.HeartbeatMessageType.heartbeat_response){if(s!==e.expectedHeartbeatPayload)return e.process();e.heartbeatReceived&&e.heartbeatReceived(e,a.util.createBuffer(s))}e.process()};var l=1,p=2,f=3,h=4,d=5,y=6,g=7,v=8,m=1,C=2,E=3,S=4,T=5,I=6,A=u.handleUnexpected,B=u.handleChangeCipherSpec,b=u.handleAlert,N=u.handleHandshake,R=u.handleApplicationData,w=u.handleHeartbeat,_=[];_[u.ConnectionEnd.client]=[[A,b,N,A,w],[A,b,N,A,w],[A,b,N,A,w],[A,b,N,A,w],[A,b,N,A,w],[B,b,A,A,w],[A,b,N,A,w],[A,b,N,R,w],[A,b,N,A,w]],_[u.ConnectionEnd.server]=[[A,b,N,A,w],[A,b,N,A,w],[A,b,N,A,w],[A,b,N,A,w],[B,b,A,A,w],[A,b,N,A,w],[A,b,N,R,w],[A,b,N,A,w]];var L=u.handleHelloRequest,k=u.handleServerHello,U=u.handleCertificate,D=u.handleServerKeyExchange,P=u.handleCertificateRequest,V=u.handleServerHelloDone,O=u.handleFinished,K=[];K[u.ConnectionEnd.client]=[[A,A,k,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A],[L,A,A,A,A,A,A,A,A,A,A,U,D,P,V,A,A,A,A,A,A],[L,A,A,A,A,A,A,A,A,A,A,A,D,P,V,A,A,A,A,A,A],[L,A,A,A,A,A,A,A,A,A,A,A,A,P,V,A,A,A,A,A,A],[L,A,A,A,A,A,A,A,A,A,A,A,A,A,V,A,A,A,A,A,A],[L,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A],[L,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,O],[L,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A],[L,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A]];var x=u.handleClientHello,M=u.handleClientKeyExchange,F=u.handleCertificateVerify;K[u.ConnectionEnd.server]=[[A,x,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A],[A,A,A,A,A,A,A,A,A,A,A,U,A,A,A,A,A,A,A,A,A],[A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,M,A,A,A,A],[A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,F,A,A,A,A,A],[A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A],[A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,O],[A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A],[A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A,A]],u.generateKeys=function(e,t){var r=n,a=t.client_random+t.server_random;e.session.resuming||(t.master_secret=r(t.pre_master_secret,"master secret",a,48).bytes(),t.pre_master_secret=null),a=t.server_random+t.client_random;var i=2*t.mac_key_length+2*t.enc_key_length,s=e.version.major===u.Versions.TLS_1_0.major&&e.version.minor===u.Versions.TLS_1_0.minor;s&&(i+=2*t.fixed_iv_length);var o=r(t.master_secret,"key expansion",a,i),c={client_write_MAC_key:o.getBytes(t.mac_key_length),server_write_MAC_key:o.getBytes(t.mac_key_length),client_write_key:o.getBytes(t.enc_key_length),server_write_key:o.getBytes(t.enc_key_length)};return s&&(c.client_write_IV=o.getBytes(t.fixed_iv_length),c.server_write_IV=o.getBytes(t.fixed_iv_length)),c},u.createConnectionState=function(e){var t=e.entity===u.ConnectionEnd.client,r=function(){var e={sequenceNumber:[0,0],macKey:null,macLength:0,macFunction:null,cipherState:null,cipherFunction:function(e){return!0},compressionState:null,compressFunction:function(e){return!0},updateSequenceNumber:function(){4294967295===e.sequenceNumber[1]?(e.sequenceNumber[1]=0,++e.sequenceNumber[0]):++e.sequenceNumber[1]}};return e},a={read:r(),write:r()};if(a.read.update=function(e,t){return a.read.cipherFunction(t,a.read)?a.read.compressFunction(e,t,a.read)||e.error(e,{message:"Could not decompress record.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.decompression_failure}}):e.error(e,{message:"Could not decrypt record or bad MAC.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.bad_record_mac}}),!e.fail},a.write.update=function(e,t){return a.write.compressFunction(e,t,a.write)?a.write.cipherFunction(t,a.write)||e.error(e,{message:"Could not encrypt record.",send:!1,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.internal_error}}):e.error(e,{message:"Could not compress record.",send:!1,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.internal_error}}),!e.fail},e.session){var n=e.session.sp;switch(e.session.cipherSuite.initSecurityParameters(n),n.keys=u.generateKeys(e,n),a.read.macKey=t?n.keys.server_write_MAC_key:n.keys.client_write_MAC_key,a.write.macKey=t?n.keys.client_write_MAC_key:n.keys.server_write_MAC_key,e.session.cipherSuite.initConnectionState(a,e,n),n.compression_algorithm){case u.CompressionMethod.none:break;case u.CompressionMethod.deflate:a.read.compressFunction=s,a.write.compressFunction=i;break;default:throw new Error("Unsupported compression algorithm.")}}return a},u.createRandom=function(){var e=new Date,t=+e+6e4*e.getTimezoneOffset(),r=a.util.createBuffer();return r.putInt32(t),r.putBytes(a.random.getBytes(28)),r},u.createRecord=function(e,t){return t.data?{type:t.type,version:{major:e.version.major,minor:e.version.minor},length:t.data.length(),fragment:t.data}:null},u.createAlert=function(e,t){var r=a.util.createBuffer();return r.putByte(t.level),r.putByte(t.description),u.createRecord(e,{type:u.ContentType.alert,data:r})},u.createClientHello=function(e){e.session.clientHelloVersion={major:e.version.major,minor:e.version.minor};for(var t=a.util.createBuffer(),r=0;r0&&(d+=2);var y=e.session.id,g=y.length+1+2+4+28+2+i+1+o+d,v=a.util.createBuffer();return v.putByte(u.HandshakeType.client_hello),v.putInt24(g),v.putByte(e.version.major),v.putByte(e.version.minor),v.putBytes(e.session.sp.client_random),c(v,1,a.util.createBuffer(y)),c(v,2,t),c(v,1,s),d>0&&c(v,2,l),v},u.createServerHello=function(e){var t=e.session.id,r=t.length+1+2+4+28+2+1,n=a.util.createBuffer();return n.putByte(u.HandshakeType.server_hello),n.putInt24(r),n.putByte(e.version.major),n.putByte(e.version.minor),n.putBytes(e.session.sp.server_random),c(n,1,a.util.createBuffer(t)),n.putByte(e.session.cipherSuite.id[0]),n.putByte(e.session.cipherSuite.id[1]),n.putByte(e.session.compressionMethod),n},u.createCertificate=function(e){var t,r=e.entity===u.ConnectionEnd.client,n=null;e.getCertificate&&(t=r?e.session.certificateRequest:e.session.extensions.server_name.serverNameList,n=e.getCertificate(e,t));var i=a.util.createBuffer();if(null!==n)try{a.util.isArray(n)||(n=[n]);for(var s=null,o=0;ou.MaxFragment;)n.push(u.createRecord(e,{type:t.type,data:a.util.createBuffer(i.slice(0,u.MaxFragment))})),i=i.slice(u.MaxFragment);i.length>0&&n.push(u.createRecord(e,{type:t.type,data:a.util.createBuffer(i)}))}for(var s=0;s0&&(n=r.order[0]),null!==n&&n in r.cache)for(var i in t=r.cache[n],delete r.cache[n],r.order)if(r.order[i]===n){r.order.splice(i,1);break}return t},r.setSession=function(e,t){if(r.order.length===r.capacity){var n=r.order.shift();delete r.cache[n]}n=a.util.bytesToHex(e);r.order.push(n),r.cache[n]=t}}return r},u.createConnection=function(e){var t=null;t=e.caStore?a.util.isArray(e.caStore)?a.pki.createCaStore(e.caStore):e.caStore:a.pki.createCaStore();var r=e.cipherSuites||null;if(null===r)for(var n in r=[],u.CipherSuites)r.push(u.CipherSuites[n]);var i=e.server?u.ConnectionEnd.server:u.ConnectionEnd.client,s=e.sessionCache?u.createSessionCache(e.sessionCache):null,o={version:{major:u.Version.major,minor:u.Version.minor},entity:i,sessionId:e.sessionId,caStore:t,sessionCache:s,cipherSuites:r,connected:e.connected,virtualHost:e.virtualHost||null,verifyClient:e.verifyClient||!1,verify:e.verify||function(e,t,r,a){return t},verifyOptions:e.verifyOptions||{},getCertificate:e.getCertificate||null,getPrivateKey:e.getPrivateKey||null,getSignature:e.getSignature||null,input:a.util.createBuffer(),tlsData:a.util.createBuffer(),data:a.util.createBuffer(),tlsDataReady:e.tlsDataReady,dataReady:e.dataReady,heartbeatReceived:e.heartbeatReceived,closed:e.closed,error:function(t,r){r.origin=r.origin||(t.entity===u.ConnectionEnd.client?"client":"server"),r.send&&(u.queue(t,u.createAlert(t,r.alert)),u.flush(t));var a=!1!==r.fatal;a&&(t.fail=!0),e.error(t,r),a&&t.close(!1)},deflate:e.deflate||null,inflate:e.inflate||null,reset:function(e){o.version={major:u.Version.major,minor:u.Version.minor},o.record=null,o.session=null,o.peerCertificate=null,o.state={pending:null,current:null},o.expect=(o.entity,u.ConnectionEnd.client,0),o.fragmented=null,o.records=[],o.open=!1,o.handshakes=0,o.handshaking=!1,o.isConnected=!1,o.fail=!(e||void 0===e),o.input.clear(),o.tlsData.clear(),o.data.clear(),o.state.current=u.createConnectionState(o)}};o.reset();return o.handshake=function(e){if(o.entity!==u.ConnectionEnd.client)o.error(o,{message:"Cannot initiate handshake as a server.",fatal:!1});else if(o.handshaking)o.error(o,{message:"Handshake already in progress.",fatal:!1});else{o.fail&&!o.open&&0===o.handshakes&&(o.fail=!1),o.handshaking=!0;var t=null;(e=e||"").length>0&&(o.sessionCache&&(t=o.sessionCache.getSession(e)),null===t&&(e="")),0===e.length&&o.sessionCache&&null!==(t=o.sessionCache.getSession())&&(e=t.id),o.session={id:e,version:null,cipherSuite:null,compressionMethod:null,serverCertificate:null,certificateRequest:null,clientCertificate:null,sp:{},md5:a.md.md5.create(),sha1:a.md.sha1.create()},t&&(o.version=t.version,o.session.sp=t.sp),o.session.sp.client_random=u.createRandom().getBytes(),o.open=!0,u.queue(o,u.createRecord(o,{type:u.ContentType.handshake,data:u.createClientHello(o)})),u.flush(o)}},o.process=function(e){var t=0;return e&&o.input.putBytes(e),o.fail||(null!==o.record&&o.record.ready&&o.record.fragment.isEmpty()&&(o.record=null),null===o.record&&(t=function(e){var t=0,r=e.input,n=r.length();if(n<5)t=5-n;else{e.record={type:r.getByte(),version:{major:r.getByte(),minor:r.getByte()},length:r.getInt16(),fragment:a.util.createBuffer(),ready:!1};var i=e.record.version.major===e.version.major;i&&e.session&&e.session.version&&(i=e.record.version.minor===e.version.minor),i||e.error(e,{message:"Incompatible TLS version.",send:!0,alert:{level:u.Alert.Level.fatal,description:u.Alert.Description.protocol_version}})}return t}(o)),o.fail||null===o.record||o.record.ready||(t=function(e){var t=0,r=e.input,a=r.length();a=0;c--)w>>=8,w+=B.at(c)+R.at(c),R.setAt(c,255&w);N.putBuffer(R)}E=N,p.putBuffer(I)}return p.truncate(p.length()-i),p},s.pbe.getCipher=function(e,t,r){switch(e){case s.oids.pkcs5PBES2:return s.pbe.getCipherForPBES2(e,t,r);case s.oids["pbeWithSHAAnd3-KeyTripleDES-CBC"]:case s.oids["pbewithSHAAnd40BitRC2-CBC"]:return s.pbe.getCipherForPKCS12PBE(e,t,r);default:var a=new Error("Cannot read encrypted PBE data block. Unsupported OID.");throw a.oid=e,a.supportedOids=["pkcs5PBES2","pbeWithSHAAnd3-KeyTripleDES-CBC","pbewithSHAAnd40BitRC2-CBC"],a}},s.pbe.getCipherForPBES2=function(e,t,r){var n,o={},c=[];if(!i.validate(t,u,o,c))throw(n=new Error("Cannot read password-based-encryption algorithm parameters. ASN.1 object is not a supported EncryptedPrivateKeyInfo.")).errors=c,n;if((e=i.derToOid(o.kdfOid))!==s.oids.pkcs5PBKDF2)throw(n=new Error("Cannot read encrypted private key. Unsupported key derivation function OID.")).oid=e,n.supportedOids=["pkcs5PBKDF2"],n;if((e=i.derToOid(o.encOid))!==s.oids["aes128-CBC"]&&e!==s.oids["aes192-CBC"]&&e!==s.oids["aes256-CBC"]&&e!==s.oids["des-EDE3-CBC"]&&e!==s.oids.desCBC)throw(n=new Error("Cannot read encrypted private key. Unsupported encryption scheme OID.")).oid=e,n.supportedOids=["aes128-CBC","aes192-CBC","aes256-CBC","des-EDE3-CBC","desCBC"],n;var l,p,h=o.kdfSalt,d=a.util.createBuffer(o.kdfIterationCount);switch(d=d.getInt(d.length()<<3),s.oids[e]){case"aes128-CBC":l=16,p=a.aes.createDecryptionCipher;break;case"aes192-CBC":l=24,p=a.aes.createDecryptionCipher;break;case"aes256-CBC":l=32,p=a.aes.createDecryptionCipher;break;case"des-EDE3-CBC":l=24,p=a.des.createDecryptionCipher;break;case"desCBC":l=8,p=a.des.createDecryptionCipher}var y=f(o.prfOid),g=a.pkcs5.pbkdf2(r,h,d,l,y),v=o.encIv,m=p(g);return m.start(v),m},s.pbe.getCipherForPKCS12PBE=function(e,t,r){var n={},o=[];if(!i.validate(t,l,n,o))throw(y=new Error("Cannot read password-based-encryption algorithm parameters. ASN.1 object is not a supported EncryptedPrivateKeyInfo.")).errors=o,y;var c,u,p,h=a.util.createBuffer(n.salt),d=a.util.createBuffer(n.iterations);switch(d=d.getInt(d.length()<<3),e){case s.oids["pbeWithSHAAnd3-KeyTripleDES-CBC"]:c=24,u=8,p=a.des.startDecrypting;break;case s.oids["pbewithSHAAnd40BitRC2-CBC"]:c=5,u=8,p=function(e,t){var r=a.rc2.createDecryptionCipher(e,40);return r.start(t,null),r};break;default:var y;throw(y=new Error("Cannot read PKCS #12 PBE data block. Unsupported OID.")).oid=e,y}var g=f(n.prfOid),v=s.pbe.generatePkcs12Key(r,h,1,d,c,g);return g.start(),p(v,s.pbe.generatePkcs12Key(r,h,2,d,u,g))},s.pbe.opensslDeriveBytes=function(e,t,r,n){if(null==n){if(!("md5"in a.md))throw new Error('"md5" hash algorithm unavailable.');n=a.md.md5.create()}null===t&&(t="");for(var i=[p(n,e+t)],s=16,o=1;s>>0,o>>>0];for(var u=n.fullMessageLength.length-1;u>=0;--u)n.fullMessageLength[u]+=o[1],o[1]=o[0]+(n.fullMessageLength[u]/4294967296>>>0),n.fullMessageLength[u]=n.fullMessageLength[u]>>>0,o[0]=o[1]/4294967296>>>0;return t.putBytes(i),c(e,r,t),(t.read>2048||0===t.length())&&t.compact(),n},n.digest=function(){var s=a.util.createBuffer();s.putBytes(t.bytes());var o,u=n.fullMessageLength[n.fullMessageLength.length-1]+n.messageLengthSize&n.blockLength-1;s.putBytes(i.substr(0,n.blockLength-u));for(var l=8*n.fullMessageLength[0],p=0;p>>0,s.putInt32(l>>>0),l=o>>>0;s.putInt32(l);var f={h0:e.h0,h1:e.h1,h2:e.h2,h3:e.h3,h4:e.h4,h5:e.h5,h6:e.h6,h7:e.h7};c(f,r,s);var h=a.util.createBuffer();return h.putInt32(f.h0),h.putInt32(f.h1),h.putInt32(f.h2),h.putInt32(f.h3),h.putInt32(f.h4),h.putInt32(f.h5),h.putInt32(f.h6),h.putInt32(f.h7),h},n};var i=null,s=!1,o=null;function c(e,t,r){for(var a,n,i,s,c,u,l,p,f,h,d,y,g,v=r.length();v>=64;){for(c=0;c<16;++c)t[c]=r.getInt32();for(;c<64;++c)a=((a=t[c-2])>>>17|a<<15)^(a>>>19|a<<13)^a>>>10,n=((n=t[c-15])>>>7|n<<25)^(n>>>18|n<<14)^n>>>3,t[c]=a+t[c-7]+n+t[c-16]|0;for(u=e.h0,l=e.h1,p=e.h2,f=e.h3,h=e.h4,d=e.h5,y=e.h6,g=e.h7,c=0;c<64;++c)i=(u>>>2|u<<30)^(u>>>13|u<<19)^(u>>>22|u<<10),s=u&l|p&(u^l),a=g+((h>>>6|h<<26)^(h>>>11|h<<21)^(h>>>25|h<<7))+(y^h&(d^y))+o[c]+t[c],g=y,y=d,d=h,h=f+a>>>0,f=p,p=l,l=u,u=a+(n=i+s)>>>0;e.h0=e.h0+u|0,e.h1=e.h1+l|0,e.h2=e.h2+p|0,e.h3=e.h3+f|0,e.h4=e.h4+h|0,e.h5=e.h5+d|0,e.h6=e.h6+y|0,e.h7=e.h7+g|0,v-=64}}},function(e,t,r){var a=r(0);r(1);var n=null;!a.util.isNodejs||a.options.usePureJavaScript||process.versions["node-webkit"]||(n=r(16)),(e.exports=a.prng=a.prng||{}).create=function(e){for(var t={plugin:e,key:null,seed:null,time:null,reseeds:0,generated:0,keyBytes:""},r=e.md,i=new Array(32),s=0;s<32;++s)i[s]=r.create();function o(){if(t.pools[0].messageLength>=32)return c();var e=32-t.pools[0].messageLength<<5;t.collect(t.seedFileSync(e)),c()}function c(){t.reseeds=4294967295===t.reseeds?0:t.reseeds+1;var e=t.plugin.md.create();e.update(t.keyBytes);for(var r=1,a=0;a<32;++a)t.reseeds%r==0&&(e.update(t.pools[a].digest().getBytes()),t.pools[a].start()),r<<=1;t.keyBytes=e.digest().getBytes(),e.start(),e.update(t.keyBytes);var n=e.digest().getBytes();t.key=t.plugin.formatKey(t.keyBytes),t.seed=t.plugin.formatSeed(n),t.generated=0}function u(e){var t=null,r=a.util.globalScope,n=r.crypto||r.msCrypto;n&&n.getRandomValues&&(t=function(e){return n.getRandomValues(e)});var i=a.util.createBuffer();if(t)for(;i.length()>16)))<<16,f=4294967295&(l=(2147483647&(l+=u>>15))+(l>>31));for(c=0;c<3;++c)p=f>>>(c<<3),p^=Math.floor(256*Math.random()),i.putByte(255&p)}return i.getBytes(e)}return t.pools=i,t.pool=0,t.generate=function(e,r){if(!r)return t.generateSync(e);var n=t.plugin.cipher,i=t.plugin.increment,s=t.plugin.formatKey,o=t.plugin.formatSeed,u=a.util.createBuffer();t.key=null,function l(p){if(p)return r(p);if(u.length()>=e)return r(null,u.getBytes(e));t.generated>1048575&&(t.key=null);if(null===t.key)return a.util.nextTick((function(){!function(e){if(t.pools[0].messageLength>=32)return c(),e();var r=32-t.pools[0].messageLength<<5;t.seedFile(r,(function(r,a){if(r)return e(r);t.collect(a),c(),e()}))}(l)}));var f=n(t.key,t.seed);t.generated+=f.length,u.putBytes(f),t.key=s(n(t.key,i(t.seed))),t.seed=o(n(t.key,t.seed)),a.util.setImmediate(l)}()},t.generateSync=function(e){var r=t.plugin.cipher,n=t.plugin.increment,i=t.plugin.formatKey,s=t.plugin.formatSeed;t.key=null;for(var c=a.util.createBuffer();c.length()1048575&&(t.key=null),null===t.key&&o();var u=r(t.key,t.seed);t.generated+=u.length,c.putBytes(u),t.key=i(r(t.key,n(t.seed))),t.seed=s(r(t.key,t.seed))}return c.getBytes(e)},n?(t.seedFile=function(e,t){n.randomBytes(e,(function(e,r){if(e)return t(e);t(null,r.toString())}))},t.seedFileSync=function(e){return n.randomBytes(e).toString()}):(t.seedFile=function(e,t){try{t(null,u(e))}catch(e){t(e)}},t.seedFileSync=u),t.collect=function(e){for(var r=e.length,a=0;a>n&255);t.collect(a)},t.registerWorker=function(e){if(e===self)t.seedFile=function(e,t){self.addEventListener("message",(function e(r){var a=r.data;a.forge&&a.forge.prng&&(self.removeEventListener("message",e),t(a.forge.prng.err,a.forge.prng.bytes))})),self.postMessage({forge:{prng:{needed:e}}})};else{e.addEventListener("message",(function(r){var a=r.data;a.forge&&a.forge.prng&&t.seedFile(a.forge.prng.needed,(function(t,r){e.postMessage({forge:{prng:{err:t,bytes:r}}})}))}))}},t}},function(e,t,r){var a=r(0);r(1);var n=[217,120,249,196,25,221,181,237,40,233,253,121,74,160,216,157,198,126,55,131,43,118,83,142,98,76,100,136,68,139,251,162,23,154,89,245,135,179,79,19,97,69,109,141,9,129,125,50,189,143,64,235,134,183,123,11,240,149,33,34,92,107,78,130,84,214,101,147,206,96,178,28,115,86,192,20,167,140,241,220,18,117,202,31,59,190,228,209,66,61,212,48,163,60,182,38,111,191,14,218,70,105,7,87,39,242,29,155,188,148,67,3,248,17,199,246,144,239,62,231,6,195,213,47,200,102,30,215,8,232,234,222,128,82,238,247,132,170,114,172,53,77,106,42,150,26,210,113,90,21,73,116,75,159,208,94,4,24,164,236,194,224,65,110,15,81,203,204,36,145,175,80,161,244,112,57,153,124,58,133,35,184,180,122,252,2,54,91,37,85,151,49,45,93,250,152,227,138,146,174,5,223,41,16,103,108,186,201,211,0,230,207,225,158,168,44,99,22,1,63,88,226,137,169,13,56,52,27,171,51,255,176,187,72,12,95,185,177,205,46,197,243,219,71,229,165,156,119,10,166,32,104,254,127,193,173],i=[1,2,3,5],s=function(e,t){return e<>16-t},o=function(e,t){return(65535&e)>>t|e<<16-t&65535};e.exports=a.rc2=a.rc2||{},a.rc2.expandKey=function(e,t){"string"==typeof e&&(e=a.util.createBuffer(e)),t=t||128;var r,i=e,s=e.length(),o=t,c=Math.ceil(o/8),u=255>>(7&o);for(r=s;r<128;r++)i.putByte(n[i.at(r-1)+i.at(r-s)&255]);for(i.setAt(128-c,n[i.at(128-c)&u]),r=127-c;r>=0;r--)i.setAt(r,n[i.at(r+1)^i.at(r+c)]);return i};var c=function(e,t,r){var n,c,u,l,p=!1,f=null,h=null,d=null,y=[];for(e=a.rc2.expandKey(e,t),u=0;u<64;u++)y.push(e.getInt16Le());r?(n=function(e){for(u=0;u<4;u++)e[u]+=y[l]+(e[(u+3)%4]&e[(u+2)%4])+(~e[(u+3)%4]&e[(u+1)%4]),e[u]=s(e[u],i[u]),l++},c=function(e){for(u=0;u<4;u++)e[u]+=y[63&e[(u+3)%4]]}):(n=function(e){for(u=3;u>=0;u--)e[u]=o(e[u],i[u]),e[u]-=y[l]+(e[(u+3)%4]&e[(u+2)%4])+(~e[(u+3)%4]&e[(u+1)%4]),l--},c=function(e){for(u=3;u>=0;u--)e[u]-=y[63&e[(u+3)%4]]});var g=function(e){var t=[];for(u=0;u<4;u++){var a=f.getInt16Le();null!==d&&(r?a^=d.getInt16Le():d.putInt16Le(a)),t.push(65535&a)}l=r?0:63;for(var n=0;n=8;)g([[5,n],[1,c],[6,n],[1,c],[5,n]])},finish:function(e){var t=!0;if(r)if(e)t=e(8,f,!r);else{var a=8===f.length()?8:8-f.length();f.fillWithByte(a,a)}if(t&&(p=!0,v.update()),!r&&(t=0===f.length()))if(e)t=e(8,h,!r);else{var n=h.length(),i=h.at(n-1);i>n?t=!1:h.truncate(i)}return t}}};a.rc2.startEncrypting=function(e,t,r){var n=a.rc2.createEncryptionCipher(e,128);return n.start(t,r),n},a.rc2.createEncryptionCipher=function(e,t){return c(e,t,!0)},a.rc2.startDecrypting=function(e,t,r){var n=a.rc2.createDecryptionCipher(e,128);return n.start(t,r),n},a.rc2.createDecryptionCipher=function(e,t){return c(e,t,!1)}},function(e,t,r){var a=r(0);r(1),r(2),r(9);var n=e.exports=a.pkcs1=a.pkcs1||{};function i(e,t,r){r||(r=a.md.sha1.create());for(var n="",i=Math.ceil(t/r.digestLength),s=0;s>24&255,s>>16&255,s>>8&255,255&s);r.start(),r.update(e+o),n+=r.digest().getBytes()}return n.substring(0,t)}n.encode_rsa_oaep=function(e,t,r){var n,s,o,c;"string"==typeof r?(n=r,s=arguments[3]||void 0,o=arguments[4]||void 0):r&&(n=r.label||void 0,s=r.seed||void 0,o=r.md||void 0,r.mgf1&&r.mgf1.md&&(c=r.mgf1.md)),o?o.start():o=a.md.sha1.create(),c||(c=o);var u=Math.ceil(e.n.bitLength()/8),l=u-2*o.digestLength-2;if(t.length>l)throw(g=new Error("RSAES-OAEP input message length is too long.")).length=t.length,g.maxLength=l,g;n||(n=""),o.update(n,"raw");for(var p=o.digest(),f="",h=l-t.length,d=0;de&&(s=c(e,t));var h=s.toString(16);n.target.postMessage({hex:h,workLoad:l}),s.dAddOffset(p,0)}}}h()}(e,t,n,i);return o(e,t,n,i)}(e,u,i.options,n);throw new Error("Invalid prime generation algorithm: "+i.name)}}function o(e,t,r,i){var s=c(e,t),o=function(e){return e<=100?27:e<=150?18:e<=200?15:e<=250?12:e<=300?9:e<=350?8:e<=400?7:e<=500?6:e<=600?5:e<=800?4:e<=1250?3:2}(s.bitLength());"millerRabinTests"in r&&(o=r.millerRabinTests);var u=10;"maxBlockTime"in r&&(u=r.maxBlockTime),function e(t,r,i,s,o,u,l){var p=+new Date;do{if(t.bitLength()>r&&(t=c(r,i)),t.isProbablePrime(o))return l(null,t);t.dAddOffset(n[s++%8],0)}while(u<0||+new Date-p=0&&n.push(o):n.push(o))}return n}function h(e){if(e.composed||e.constructed){for(var t=a.util.createBuffer(),r=0;r0&&(c=n.create(n.Class.UNIVERSAL,n.Type.SET,!0,p));var f=[],h=[];null!==t&&(h=a.util.isArray(t)?t:[t]);for(var d=[],y=0;y0){var C=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,d),E=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.OID,!1,n.oidToDer(i.oids.data).getBytes()),n.create(n.Class.CONTEXT_SPECIFIC,0,!0,[n.create(n.Class.UNIVERSAL,n.Type.OCTETSTRING,!1,n.toDer(C).getBytes())])]);f.push(E)}var S=null;if(null!==e){var T=i.wrapRsaPrivateKey(i.privateKeyToAsn1(e));S=null===r?n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.OID,!1,n.oidToDer(i.oids.keyBag).getBytes()),n.create(n.Class.CONTEXT_SPECIFIC,0,!0,[T]),c]):n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.OID,!1,n.oidToDer(i.oids.pkcs8ShroudedKeyBag).getBytes()),n.create(n.Class.CONTEXT_SPECIFIC,0,!0,[i.encryptPrivateKeyInfo(T,r,o)]),c]);var I=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[S]),A=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.OID,!1,n.oidToDer(i.oids.data).getBytes()),n.create(n.Class.CONTEXT_SPECIFIC,0,!0,[n.create(n.Class.UNIVERSAL,n.Type.OCTETSTRING,!1,n.toDer(I).getBytes())])]);f.push(A)}var B,b=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,f);if(o.useMac){var N=a.md.sha1.create(),R=new a.util.ByteBuffer(a.random.getBytes(o.saltSize)),w=o.count,_=(e=s.generateKey(r,R,3,w,20),a.hmac.create());_.start(N,e),_.update(n.toDer(b).getBytes());var L=_.getMac();B=n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.OID,!1,n.oidToDer(i.oids.sha1).getBytes()),n.create(n.Class.UNIVERSAL,n.Type.NULL,!1,"")]),n.create(n.Class.UNIVERSAL,n.Type.OCTETSTRING,!1,L.getBytes())]),n.create(n.Class.UNIVERSAL,n.Type.OCTETSTRING,!1,R.getBytes()),n.create(n.Class.UNIVERSAL,n.Type.INTEGER,!1,n.integerToDer(w).getBytes())])}return n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.INTEGER,!1,n.integerToDer(3).getBytes()),n.create(n.Class.UNIVERSAL,n.Type.SEQUENCE,!0,[n.create(n.Class.UNIVERSAL,n.Type.OID,!1,n.oidToDer(i.oids.data).getBytes()),n.create(n.Class.CONTEXT_SPECIFIC,0,!0,[n.create(n.Class.UNIVERSAL,n.Type.OCTETSTRING,!1,n.toDer(b).getBytes())])]),B])},s.generateKey=a.pbe.generatePkcs12Key},function(e,t,r){var a=r(0);r(3),r(1);var n=a.asn1,i=e.exports=a.pkcs7asn1=a.pkcs7asn1||{};a.pkcs7=a.pkcs7||{},a.pkcs7.asn1=i;var s={name:"ContentInfo",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"ContentInfo.ContentType",tagClass:n.Class.UNIVERSAL,type:n.Type.OID,constructed:!1,capture:"contentType"},{name:"ContentInfo.content",tagClass:n.Class.CONTEXT_SPECIFIC,type:0,constructed:!0,optional:!0,captureAsn1:"content"}]};i.contentInfoValidator=s;var o={name:"EncryptedContentInfo",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"EncryptedContentInfo.contentType",tagClass:n.Class.UNIVERSAL,type:n.Type.OID,constructed:!1,capture:"contentType"},{name:"EncryptedContentInfo.contentEncryptionAlgorithm",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"EncryptedContentInfo.contentEncryptionAlgorithm.algorithm",tagClass:n.Class.UNIVERSAL,type:n.Type.OID,constructed:!1,capture:"encAlgorithm"},{name:"EncryptedContentInfo.contentEncryptionAlgorithm.parameter",tagClass:n.Class.UNIVERSAL,captureAsn1:"encParameter"}]},{name:"EncryptedContentInfo.encryptedContent",tagClass:n.Class.CONTEXT_SPECIFIC,type:0,capture:"encryptedContent",captureAsn1:"encryptedContentAsn1"}]};i.envelopedDataValidator={name:"EnvelopedData",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"EnvelopedData.Version",tagClass:n.Class.UNIVERSAL,type:n.Type.INTEGER,constructed:!1,capture:"version"},{name:"EnvelopedData.RecipientInfos",tagClass:n.Class.UNIVERSAL,type:n.Type.SET,constructed:!0,captureAsn1:"recipientInfos"}].concat(o)},i.encryptedDataValidator={name:"EncryptedData",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"EncryptedData.Version",tagClass:n.Class.UNIVERSAL,type:n.Type.INTEGER,constructed:!1,capture:"version"}].concat(o)};var c={name:"SignerInfo",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"SignerInfo.version",tagClass:n.Class.UNIVERSAL,type:n.Type.INTEGER,constructed:!1},{name:"SignerInfo.issuerAndSerialNumber",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"SignerInfo.issuerAndSerialNumber.issuer",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,captureAsn1:"issuer"},{name:"SignerInfo.issuerAndSerialNumber.serialNumber",tagClass:n.Class.UNIVERSAL,type:n.Type.INTEGER,constructed:!1,capture:"serial"}]},{name:"SignerInfo.digestAlgorithm",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"SignerInfo.digestAlgorithm.algorithm",tagClass:n.Class.UNIVERSAL,type:n.Type.OID,constructed:!1,capture:"digestAlgorithm"},{name:"SignerInfo.digestAlgorithm.parameter",tagClass:n.Class.UNIVERSAL,constructed:!1,captureAsn1:"digestParameter",optional:!0}]},{name:"SignerInfo.authenticatedAttributes",tagClass:n.Class.CONTEXT_SPECIFIC,type:0,constructed:!0,optional:!0,capture:"authenticatedAttributes"},{name:"SignerInfo.digestEncryptionAlgorithm",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,capture:"signatureAlgorithm"},{name:"SignerInfo.encryptedDigest",tagClass:n.Class.UNIVERSAL,type:n.Type.OCTETSTRING,constructed:!1,capture:"signature"},{name:"SignerInfo.unauthenticatedAttributes",tagClass:n.Class.CONTEXT_SPECIFIC,type:1,constructed:!0,optional:!0,capture:"unauthenticatedAttributes"}]};i.signedDataValidator={name:"SignedData",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"SignedData.Version",tagClass:n.Class.UNIVERSAL,type:n.Type.INTEGER,constructed:!1,capture:"version"},{name:"SignedData.DigestAlgorithms",tagClass:n.Class.UNIVERSAL,type:n.Type.SET,constructed:!0,captureAsn1:"digestAlgorithms"},s,{name:"SignedData.Certificates",tagClass:n.Class.CONTEXT_SPECIFIC,type:0,optional:!0,captureAsn1:"certificates"},{name:"SignedData.CertificateRevocationLists",tagClass:n.Class.CONTEXT_SPECIFIC,type:1,optional:!0,captureAsn1:"crls"},{name:"SignedData.SignerInfos",tagClass:n.Class.UNIVERSAL,type:n.Type.SET,capture:"signerInfos",optional:!0,value:[c]}]},i.recipientInfoValidator={name:"RecipientInfo",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"RecipientInfo.version",tagClass:n.Class.UNIVERSAL,type:n.Type.INTEGER,constructed:!1,capture:"version"},{name:"RecipientInfo.issuerAndSerial",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"RecipientInfo.issuerAndSerial.issuer",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,captureAsn1:"issuer"},{name:"RecipientInfo.issuerAndSerial.serialNumber",tagClass:n.Class.UNIVERSAL,type:n.Type.INTEGER,constructed:!1,capture:"serial"}]},{name:"RecipientInfo.keyEncryptionAlgorithm",tagClass:n.Class.UNIVERSAL,type:n.Type.SEQUENCE,constructed:!0,value:[{name:"RecipientInfo.keyEncryptionAlgorithm.algorithm",tagClass:n.Class.UNIVERSAL,type:n.Type.OID,constructed:!1,capture:"encAlgorithm"},{name:"RecipientInfo.keyEncryptionAlgorithm.parameter",tagClass:n.Class.UNIVERSAL,constructed:!1,captureAsn1:"encParameter",optional:!0}]},{name:"RecipientInfo.encryptedKey",tagClass:n.Class.UNIVERSAL,type:n.Type.OCTETSTRING,constructed:!1,capture:"encKey"}]}},function(e,t,r){var a=r(0);r(1),a.mgf=a.mgf||{},(e.exports=a.mgf.mgf1=a.mgf1=a.mgf1||{}).create=function(e){return{generate:function(t,r){for(var n=new a.util.ByteBuffer,i=Math.ceil(r/e.digestLength),s=0;s>>0,s>>>0];for(var o=h.fullMessageLength.length-1;o>=0;--o)h.fullMessageLength[o]+=s[1],s[1]=s[0]+(h.fullMessageLength[o]/4294967296>>>0),h.fullMessageLength[o]=h.fullMessageLength[o]>>>0,s[0]=s[1]/4294967296>>>0;return n.putBytes(e),l(r,i,n),(n.read>2048||0===n.length())&&n.compact(),h},h.digest=function(){var t=a.util.createBuffer();t.putBytes(n.bytes());var o,c=h.fullMessageLength[h.fullMessageLength.length-1]+h.messageLengthSize&h.blockLength-1;t.putBytes(s.substr(0,h.blockLength-c));for(var u=8*h.fullMessageLength[0],p=0;p>>0,t.putInt32(u>>>0),u=o>>>0;t.putInt32(u);var f=new 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r=this.abs(),o=t.abs(),s=r.t;for(i.t=s+o.t;--s>=0;)i.data[s]=0;for(s=0;s=0;)t.data[r]=0;for(r=0;r=i.DV&&(t.data[r+i.t]-=i.DV,t.data[r+i.t+1]=1)}t.t>0&&(t.data[t.t-1]+=i.am(r,i.data[r],t,2*r,0,1)),t.s=0,t.clamp()},e.prototype.divRemTo=function(t,i,r){var o=t.abs();if(!(o.t<=0)){var s=this.abs();if(s.t0?(o.lShiftTo(f,n),s.lShiftTo(f,r)):(o.copyTo(n),s.copyTo(r));var p=n.t,d=n.data[p-1];if(0!=d){var c=d*(1<1?n.data[p-2]>>this.F2:0),l=this.FV/c,v=(1<=0&&(r.data[r.t++]=1,r.subTo(g,r)),e.ONE.dlShiftTo(p,g),g.subTo(n,n);n.t=0;){var D=r.data[--y]==d?this.DM:Math.floor(r.data[y]*l+(r.data[y-1]+T)*v);if((r.data[y]+=n.am(0,D,r,b,0,p))0&&r.rShiftTo(f,r),h<0&&e.ZERO.subTo(r,r)}}},e.prototype.invDigit=function(){if(this.t<1)return 0;var t=this.data[0];if(0==(1&t))return 0;var i=3&t;return(i=(i=(i=(i=i*(2-(15&t)*i)&15)*(2-(255&t)*i)&255)*(2-((65535&t)*i&65535))&65535)*(2-t*i%this.DV)%this.DV)>0?this.DV-i:-i},e.prototype.isEven=function(){return 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this.t<=0?0:this.DB*(this.t-1)+m(this.data[this.t-1]^this.s&this.DM)},e.prototype.mod=function(t){var i=a();return this.abs().divRemTo(t,null,i),this.s<0&&i.compareTo(e.ZERO)>0&&t.subTo(i,i),i},e.prototype.modPowInt=function(t,i){var r;return r=t<256||i.isEven()?new l(i):new v(i),this.exp(t,r)},e.ZERO=c(0),e.ONE=c(1),S.prototype.convert=M,S.prototype.revert=M,S.prototype.mulTo=function(t,i,r){t.multiplyTo(i,r)},S.prototype.sqrTo=function(t,i){t.squareTo(i)},w.prototype.convert=function(t){if(t.s<0||t.t>2*this.m.t)return t.mod(this.m);if(t.compareTo(this.m)<0)return t;var i=a();return t.copyTo(i),this.reduce(i),i},w.prototype.revert=function(t){return t},w.prototype.reduce=function(t){for(t.drShiftTo(this.m.t-1,this.r2),t.t>this.m.t+1&&(t.t=this.m.t+1,t.clamp()),this.mu.multiplyUpperTo(this.r2,this.m.t+1,this.q3),this.m.multiplyLowerTo(this.q3,this.m.t+1,this.r2);t.compareTo(this.r2)<0;)t.dAddOffset(1,this.m.t+1);for(t.subTo(this.r2,t);t.compareTo(this.m)>=0;)t.subTo(this.m,t)},w.prototype.mulTo=function(t,i,r){t.multiplyTo(i,r),this.reduce(r)},w.prototype.sqrTo=function(t,i){t.squareTo(i),this.reduce(i)};var E=[2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509],O=(1<<26)/E[E.length-1];e.prototype.chunkSize=function(t){return Math.floor(Math.LN2*this.DB/Math.log(t))},e.prototype.toRadix=function(t){if(null==t&&(t=10),0==this.signum()||t<2||t>36)return"0";var i=this.chunkSize(t),r=Math.pow(t,i),o=c(r),s=a(),e=a(),n="";for(this.divRemTo(o,s,e);s.signum()>0;)n=(r+e.intValue()).toString(t).substr(1)+n,s.divRemTo(o,s,e);return e.intValue().toString(t)+n},e.prototype.fromRadix=function(t,i){this.fromInt(0),null==i&&(i=10);for(var r=this.chunkSize(i),o=Math.pow(i,r),s=!1,a=0,n=0,h=0;h=r&&(this.dMultiply(o),this.dAddOffset(n,0),a=0,n=0))}a>0&&(this.dMultiply(Math.pow(i,a)),this.dAddOffset(n,0)),s&&e.ZERO.subTo(this,this)},e.prototype.fromNumber=function(t,i,r){if("number"==typeof i)if(t<2)this.fromInt(1);else for(this.fromNumber(t,r),this.testBit(t-1)||this.bitwiseTo(e.ONE.shiftLeft(t-1),y,this),this.isEven()&&this.dAddOffset(1,0);!this.isProbablePrime(i);)this.dAddOffset(2,0),this.bitLength()>t&&this.subTo(e.ONE.shiftLeft(t-1),this);else{var o=new 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h=o.modPow(s,this);if(0!=h.compareTo(e.ONE)&&0!=h.compareTo(i)){for(var u=1;u++>24},e.prototype.shortValue=function(){return 0==this.t?this.s:this.data[0]<<16>>16},e.prototype.signum=function(){return this.s<0?-1:this.t<=0||1==this.t&&this.data[0]<=0?0:1},e.prototype.toByteArray=function(){var t=this.t,i=new Array;i[0]=this.s;var r,o=this.DB-t*this.DB%8,s=0;if(t-- >0)for(o>o)!=(this.s&this.DM)>>o&&(i[s++]=r|this.s<=0;)o<8?(r=(this.data[t]&(1<>(o+=this.DB-8)):(r=this.data[t]>>(o-=8)&255,o<=0&&(o+=this.DB,--t)),0!=(128&r)&&(r|=-256),0==s&&(128&this.s)!=(128&r)&&++s,(s>0||r!=this.s)&&(i[s++]=r);return i},e.prototype.equals=function(t){return 0==this.compareTo(t)},e.prototype.min=function(t){return this.compareTo(t)<0?this:t},e.prototype.max=function(t){return this.compareTo(t)>0?this:t},e.prototype.and=function(t){var i=a();return this.bitwiseTo(t,T,i),i},e.prototype.or=function(t){var i=a();return this.bitwiseTo(t,y,i),i},e.prototype.xor=function(t){var i=a();return this.bitwiseTo(t,b,i),i},e.prototype.andNot=function(t){var i=a();return this.bitwiseTo(t,g,i),i},e.prototype.not=function(){for(var t=a(),i=0;i=this.t?0!=this.s:0!=(this.data[i]&1<1){var p=a();for(o.sqrTo(n[1],p);h<=f;)n[h]=a(),o.mulTo(p,n[h-2],n[h]),h+=2}var d,T,y=t.t-1,b=!0,g=a();for(s=m(t.data[y])-1;y>=0;){for(s>=u?d=t.data[y]>>s-u&f:(d=(t.data[y]&(1<0&&(d|=t.data[y-1]>>this.DB+s-u)),h=r;0==(1&d);)d>>=1,--h;if((s-=h)<0&&(s+=this.DB,--y),b)n[d].copyTo(e),b=!1;else{for(;h>1;)o.sqrTo(e,g),o.sqrTo(g,e),h-=2;h>0?o.sqrTo(e,g):(T=e,e=g,g=T),o.mulTo(g,n[d],e)}for(;y>=0&&0==(t.data[y]&1<=0?(r.subTo(o,r),i&&s.subTo(n,s),a.subTo(h,a)):(o.subTo(r,o),i&&n.subTo(s,n),h.subTo(a,h))}return 0!=o.compareTo(e.ONE)?e.ZERO:h.compareTo(t)>=0?h.subtract(t):h.signum()<0?(h.addTo(t,h),h.signum()<0?h.add(t):h):h},e.prototype.pow=function(t){return this.exp(t,new S)},e.prototype.gcd=function(t){var i=this.s<0?this.negate():this.clone(),r=t.s<0?t.negate():t.clone();if(i.compareTo(r)<0){var o=i;i=r,r=o}var s=i.getLowestSetBit(),e=r.getLowestSetBit();if(e<0)return i;for(s0&&(i.rShiftTo(e,i),r.rShiftTo(e,r));i.signum()>0;)(s=i.getLowestSetBit())>0&&i.rShiftTo(s,i),(s=r.getLowestSetBit())>0&&r.rShiftTo(s,r),i.compareTo(r)>=0?(i.subTo(r,i),i.rShiftTo(1,i)):(r.subTo(i,r),r.rShiftTo(1,r));return e>0&&r.lShiftTo(e,r),r},e.prototype.isProbablePrime=function(t){var i,r=this.abs();if(1==r.t&&r.data[0]<=E[E.length-1]){for(i=0;i', key); + * cipher.start({iv: iv}); + * + * Creates an AES cipher object to encrypt data using the given symmetric key. + * The output will be stored in the 'output' member of the returned cipher. + * + * The key and iv may be given as a string of bytes, an array of bytes, + * a byte buffer, or an array of 32-bit words. + * + * @param key the symmetric key to use. + * @param iv the initialization vector to use. + * @param output the buffer to write to, null to create one. + * @param mode the cipher mode to use (default: 'CBC'). + * + * @return the cipher. + */ +forge.aes.startEncrypting = function(key, iv, output, mode) { + var cipher = _createCipher({ + key: key, + output: output, + decrypt: false, + mode: mode + }); + cipher.start(iv); + return cipher; +}; + +/** + * Deprecated. Instead, use: + * + * var cipher = forge.cipher.createCipher('AES-', key); + * + * Creates an AES cipher object to encrypt data using the given symmetric key. + * + * The key may be given as a string of bytes, an array of bytes, a + * byte buffer, or an array of 32-bit words. + * + * @param key the symmetric key to use. + * @param mode the cipher mode to use (default: 'CBC'). + * + * @return the cipher. + */ +forge.aes.createEncryptionCipher = function(key, mode) { + return _createCipher({ + key: key, + output: null, + decrypt: false, + mode: mode + }); +}; + +/** + * Deprecated. Instead, use: + * + * var decipher = forge.cipher.createDecipher('AES-', key); + * decipher.start({iv: iv}); + * + * Creates an AES cipher object to decrypt data using the given symmetric key. + * The output will be stored in the 'output' member of the returned cipher. + * + * The key and iv may be given as a string of bytes, an array of bytes, + * a byte buffer, or an array of 32-bit words. + * + * @param key the symmetric key to use. + * @param iv the initialization vector to use. + * @param output the buffer to write to, null to create one. + * @param mode the cipher mode to use (default: 'CBC'). + * + * @return the cipher. + */ +forge.aes.startDecrypting = function(key, iv, output, mode) { + var cipher = _createCipher({ + key: key, + output: output, + decrypt: true, + mode: mode + }); + cipher.start(iv); + return cipher; +}; + +/** + * Deprecated. Instead, use: + * + * var decipher = forge.cipher.createDecipher('AES-', key); + * + * Creates an AES cipher object to decrypt data using the given symmetric key. + * + * The key may be given as a string of bytes, an array of bytes, a + * byte buffer, or an array of 32-bit words. + * + * @param key the symmetric key to use. + * @param mode the cipher mode to use (default: 'CBC'). + * + * @return the cipher. + */ +forge.aes.createDecryptionCipher = function(key, mode) { + return _createCipher({ + key: key, + output: null, + decrypt: true, + mode: mode + }); +}; + +/** + * Creates a new AES cipher algorithm object. + * + * @param name the name of the algorithm. + * @param mode the mode factory function. + * + * @return the AES algorithm object. + */ +forge.aes.Algorithm = function(name, mode) { + if(!init) { + initialize(); + } + var self = this; + self.name = name; + self.mode = new mode({ + blockSize: 16, + cipher: { + encrypt: function(inBlock, outBlock) { + return _updateBlock(self._w, inBlock, outBlock, false); + }, + decrypt: function(inBlock, outBlock) { + return _updateBlock(self._w, inBlock, outBlock, true); + } + } + }); + self._init = false; +}; + +/** + * Initializes this AES algorithm by expanding its key. + * + * @param options the options to use. + * key the key to use with this algorithm. + * decrypt true if the algorithm should be initialized for decryption, + * false for encryption. + */ +forge.aes.Algorithm.prototype.initialize = function(options) { + if(this._init) { + return; + } + + var key = options.key; + var tmp; + + /* Note: The key may be a string of bytes, an array of bytes, a byte + buffer, or an array of 32-bit integers. If the key is in bytes, then + it must be 16, 24, or 32 bytes in length. If it is in 32-bit + integers, it must be 4, 6, or 8 integers long. */ + + if(typeof key === 'string' && + (key.length === 16 || key.length === 24 || key.length === 32)) { + // convert key string into byte buffer + key = forge.util.createBuffer(key); + } else if(forge.util.isArray(key) && + (key.length === 16 || key.length === 24 || key.length === 32)) { + // convert key integer array into byte buffer + tmp = key; + key = forge.util.createBuffer(); + for(var i = 0; i < tmp.length; ++i) { + key.putByte(tmp[i]); + } + } + + // convert key byte buffer into 32-bit integer array + if(!forge.util.isArray(key)) { + tmp = key; + key = []; + + // key lengths of 16, 24, 32 bytes allowed + var len = tmp.length(); + if(len === 16 || len === 24 || len === 32) { + len = len >>> 2; + for(var i = 0; i < len; ++i) { + key.push(tmp.getInt32()); + } + } + } + + // key must be an array of 32-bit integers by now + if(!forge.util.isArray(key) || + !(key.length === 4 || key.length === 6 || key.length === 8)) { + throw new Error('Invalid key parameter.'); + } + + // encryption operation is always used for these modes + var mode = this.mode.name; + var encryptOp = (['CFB', 'OFB', 'CTR', 'GCM'].indexOf(mode) !== -1); + + // do key expansion + this._w = _expandKey(key, options.decrypt && !encryptOp); + this._init = true; +}; + +/** + * Expands a key. Typically only used for testing. + * + * @param key the symmetric key to expand, as an array of 32-bit words. + * @param decrypt true to expand for decryption, false for encryption. + * + * @return the expanded key. + */ +forge.aes._expandKey = function(key, decrypt) { + if(!init) { + initialize(); + } + return _expandKey(key, decrypt); +}; + +/** + * Updates a single block. Typically only used for testing. + * + * @param w the expanded key to use. + * @param input an array of block-size 32-bit words. + * @param output an array of block-size 32-bit words. + * @param decrypt true to decrypt, false to encrypt. + */ +forge.aes._updateBlock = _updateBlock; + +/** Register AES algorithms **/ + +registerAlgorithm('AES-ECB', forge.cipher.modes.ecb); +registerAlgorithm('AES-CBC', forge.cipher.modes.cbc); +registerAlgorithm('AES-CFB', forge.cipher.modes.cfb); +registerAlgorithm('AES-OFB', forge.cipher.modes.ofb); +registerAlgorithm('AES-CTR', forge.cipher.modes.ctr); +registerAlgorithm('AES-GCM', forge.cipher.modes.gcm); + +function registerAlgorithm(name, mode) { + var factory = function() { + return new forge.aes.Algorithm(name, mode); + }; + forge.cipher.registerAlgorithm(name, factory); +} + +/** AES implementation **/ + +var init = false; // not yet initialized +var Nb = 4; // number of words comprising the state (AES = 4) +var sbox; // non-linear substitution table used in key expansion +var isbox; // inversion of sbox +var rcon; // round constant word array +var mix; // mix-columns table +var imix; // inverse mix-columns table + +/** + * Performs initialization, ie: precomputes tables to optimize for speed. + * + * One way to understand how AES works is to imagine that 'addition' and + * 'multiplication' are interfaces that require certain mathematical + * properties to hold true (ie: they are associative) but they might have + * different implementations and produce different kinds of results ... + * provided that their mathematical properties remain true. AES defines + * its own methods of addition and multiplication but keeps some important + * properties the same, ie: associativity and distributivity. The + * explanation below tries to shed some light on how AES defines addition + * and multiplication of bytes and 32-bit words in order to perform its + * encryption and decryption algorithms. + * + * The basics: + * + * The AES algorithm views bytes as binary representations of polynomials + * that have either 1 or 0 as the coefficients. It defines the addition + * or subtraction of two bytes as the XOR operation. It also defines the + * multiplication of two bytes as a finite field referred to as GF(2^8) + * (Note: 'GF' means "Galois Field" which is a field that contains a finite + * number of elements so GF(2^8) has 256 elements). + * + * This means that any two bytes can be represented as binary polynomials; + * when they multiplied together and modularly reduced by an irreducible + * polynomial of the 8th degree, the results are the field GF(2^8). The + * specific irreducible polynomial that AES uses in hexadecimal is 0x11b. + * This multiplication is associative with 0x01 as the identity: + * + * (b * 0x01 = GF(b, 0x01) = b). + * + * The operation GF(b, 0x02) can be performed at the byte level by left + * shifting b once and then XOR'ing it (to perform the modular reduction) + * with 0x11b if b is >= 128. Repeated application of the multiplication + * of 0x02 can be used to implement the multiplication of any two bytes. + * + * For instance, multiplying 0x57 and 0x13, denoted as GF(0x57, 0x13), can + * be performed by factoring 0x13 into 0x01, 0x02, and 0x10. Then these + * factors can each be multiplied by 0x57 and then added together. To do + * the multiplication, values for 0x57 multiplied by each of these 3 factors + * can be precomputed and stored in a table. To add them, the values from + * the table are XOR'd together. + * + * AES also defines addition and multiplication of words, that is 4-byte + * numbers represented as polynomials of 3 degrees where the coefficients + * are the values of the bytes. + * + * The word [a0, a1, a2, a3] is a polynomial a3x^3 + a2x^2 + a1x + a0. + * + * Addition is performed by XOR'ing like powers of x. Multiplication + * is performed in two steps, the first is an algebriac expansion as + * you would do normally (where addition is XOR). But the result is + * a polynomial larger than 3 degrees and thus it cannot fit in a word. So + * next the result is modularly reduced by an AES-specific polynomial of + * degree 4 which will always produce a polynomial of less than 4 degrees + * such that it will fit in a word. In AES, this polynomial is x^4 + 1. + * + * The modular product of two polynomials 'a' and 'b' is thus: + * + * d(x) = d3x^3 + d2x^2 + d1x + d0 + * with + * d0 = GF(a0, b0) ^ GF(a3, b1) ^ GF(a2, b2) ^ GF(a1, b3) + * d1 = GF(a1, b0) ^ GF(a0, b1) ^ GF(a3, b2) ^ GF(a2, b3) + * d2 = GF(a2, b0) ^ GF(a1, b1) ^ GF(a0, b2) ^ GF(a3, b3) + * d3 = GF(a3, b0) ^ GF(a2, b1) ^ GF(a1, b2) ^ GF(a0, b3) + * + * As a matrix: + * + * [d0] = [a0 a3 a2 a1][b0] + * [d1] [a1 a0 a3 a2][b1] + * [d2] [a2 a1 a0 a3][b2] + * [d3] [a3 a2 a1 a0][b3] + * + * Special polynomials defined by AES (0x02 == {02}): + * a(x) = {03}x^3 + {01}x^2 + {01}x + {02} + * a^-1(x) = {0b}x^3 + {0d}x^2 + {09}x + {0e}. + * + * These polynomials are used in the MixColumns() and InverseMixColumns() + * operations, respectively, to cause each element in the state to affect + * the output (referred to as diffusing). + * + * RotWord() uses: a0 = a1 = a2 = {00} and a3 = {01}, which is the + * polynomial x3. + * + * The ShiftRows() method modifies the last 3 rows in the state (where + * the state is 4 words with 4 bytes per word) by shifting bytes cyclically. + * The 1st byte in the second row is moved to the end of the row. The 1st + * and 2nd bytes in the third row are moved to the end of the row. The 1st, + * 2nd, and 3rd bytes are moved in the fourth row. + * + * More details on how AES arithmetic works: + * + * In the polynomial representation of binary numbers, XOR performs addition + * and subtraction and multiplication in GF(2^8) denoted as GF(a, b) + * corresponds with the multiplication of polynomials modulo an irreducible + * polynomial of degree 8. In other words, for AES, GF(a, b) will multiply + * polynomial 'a' with polynomial 'b' and then do a modular reduction by + * an AES-specific irreducible polynomial of degree 8. + * + * A polynomial is irreducible if its only divisors are one and itself. For + * the AES algorithm, this irreducible polynomial is: + * + * m(x) = x^8 + x^4 + x^3 + x + 1, + * + * or {01}{1b} in hexadecimal notation, where each coefficient is a bit: + * 100011011 = 283 = 0x11b. + * + * For example, GF(0x57, 0x83) = 0xc1 because + * + * 0x57 = 87 = 01010111 = x^6 + x^4 + x^2 + x + 1 + * 0x85 = 131 = 10000101 = x^7 + x + 1 + * + * (x^6 + x^4 + x^2 + x + 1) * (x^7 + x + 1) + * = x^13 + x^11 + x^9 + x^8 + x^7 + + * x^7 + x^5 + x^3 + x^2 + x + + * x^6 + x^4 + x^2 + x + 1 + * = x^13 + x^11 + x^9 + x^8 + x^6 + x^5 + x^4 + x^3 + 1 = y + * y modulo (x^8 + x^4 + x^3 + x + 1) + * = x^7 + x^6 + 1. + * + * The modular reduction by m(x) guarantees the result will be a binary + * polynomial of less than degree 8, so that it can fit in a byte. + * + * The operation to multiply a binary polynomial b with x (the polynomial + * x in binary representation is 00000010) is: + * + * b_7x^8 + b_6x^7 + b_5x^6 + b_4x^5 + b_3x^4 + b_2x^3 + b_1x^2 + b_0x^1 + * + * To get GF(b, x) we must reduce that by m(x). If b_7 is 0 (that is the + * most significant bit is 0 in b) then the result is already reduced. If + * it is 1, then we can reduce it by subtracting m(x) via an XOR. + * + * It follows that multiplication by x (00000010 or 0x02) can be implemented + * by performing a left shift followed by a conditional bitwise XOR with + * 0x1b. This operation on bytes is denoted by xtime(). Multiplication by + * higher powers of x can be implemented by repeated application of xtime(). + * + * By adding intermediate results, multiplication by any constant can be + * implemented. For instance: + * + * GF(0x57, 0x13) = 0xfe because: + * + * xtime(b) = (b & 128) ? (b << 1 ^ 0x11b) : (b << 1) + * + * Note: We XOR with 0x11b instead of 0x1b because in javascript our + * datatype for b can be larger than 1 byte, so a left shift will not + * automatically eliminate bits that overflow a byte ... by XOR'ing the + * overflow bit with 1 (the extra one from 0x11b) we zero it out. + * + * GF(0x57, 0x02) = xtime(0x57) = 0xae + * GF(0x57, 0x04) = xtime(0xae) = 0x47 + * GF(0x57, 0x08) = xtime(0x47) = 0x8e + * GF(0x57, 0x10) = xtime(0x8e) = 0x07 + * + * GF(0x57, 0x13) = GF(0x57, (0x01 ^ 0x02 ^ 0x10)) + * + * And by the distributive property (since XOR is addition and GF() is + * multiplication): + * + * = GF(0x57, 0x01) ^ GF(0x57, 0x02) ^ GF(0x57, 0x10) + * = 0x57 ^ 0xae ^ 0x07 + * = 0xfe. + */ +function initialize() { + init = true; + + /* Populate the Rcon table. These are the values given by + [x^(i-1),{00},{00},{00}] where x^(i-1) are powers of x (and x = 0x02) + in the field of GF(2^8), where i starts at 1. + + rcon[0] = [0x00, 0x00, 0x00, 0x00] + rcon[1] = [0x01, 0x00, 0x00, 0x00] 2^(1-1) = 2^0 = 1 + rcon[2] = [0x02, 0x00, 0x00, 0x00] 2^(2-1) = 2^1 = 2 + ... + rcon[9] = [0x1B, 0x00, 0x00, 0x00] 2^(9-1) = 2^8 = 0x1B + rcon[10] = [0x36, 0x00, 0x00, 0x00] 2^(10-1) = 2^9 = 0x36 + + We only store the first byte because it is the only one used. + */ + rcon = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1B, 0x36]; + + // compute xtime table which maps i onto GF(i, 0x02) + var xtime = new Array(256); + for(var i = 0; i < 128; ++i) { + xtime[i] = i << 1; + xtime[i + 128] = (i + 128) << 1 ^ 0x11B; + } + + // compute all other tables + sbox = new Array(256); + isbox = new Array(256); + mix = new Array(4); + imix = new Array(4); + for(var i = 0; i < 4; ++i) { + mix[i] = new Array(256); + imix[i] = new Array(256); + } + var e = 0, ei = 0, e2, e4, e8, sx, sx2, me, ime; + for(var i = 0; i < 256; ++i) { + /* We need to generate the SubBytes() sbox and isbox tables so that + we can perform byte substitutions. This requires us to traverse + all of the elements in GF, find their multiplicative inverses, + and apply to each the following affine transformation: + + bi' = bi ^ b(i + 4) mod 8 ^ b(i + 5) mod 8 ^ b(i + 6) mod 8 ^ + b(i + 7) mod 8 ^ ci + for 0 <= i < 8, where bi is the ith bit of the byte, and ci is the + ith bit of a byte c with the value {63} or {01100011}. + + It is possible to traverse every possible value in a Galois field + using what is referred to as a 'generator'. There are many + generators (128 out of 256): 3,5,6,9,11,82 to name a few. To fully + traverse GF we iterate 255 times, multiplying by our generator + each time. + + On each iteration we can determine the multiplicative inverse for + the current element. + + Suppose there is an element in GF 'e'. For a given generator 'g', + e = g^x. The multiplicative inverse of e is g^(255 - x). It turns + out that if use the inverse of a generator as another generator + it will produce all of the corresponding multiplicative inverses + at the same time. For this reason, we choose 5 as our inverse + generator because it only requires 2 multiplies and 1 add and its + inverse, 82, requires relatively few operations as well. + + In order to apply the affine transformation, the multiplicative + inverse 'ei' of 'e' can be repeatedly XOR'd (4 times) with a + bit-cycling of 'ei'. To do this 'ei' is first stored in 's' and + 'x'. Then 's' is left shifted and the high bit of 's' is made the + low bit. The resulting value is stored in 's'. Then 'x' is XOR'd + with 's' and stored in 'x'. On each subsequent iteration the same + operation is performed. When 4 iterations are complete, 'x' is + XOR'd with 'c' (0x63) and the transformed value is stored in 'x'. + For example: + + s = 01000001 + x = 01000001 + + iteration 1: s = 10000010, x ^= s + iteration 2: s = 00000101, x ^= s + iteration 3: s = 00001010, x ^= s + iteration 4: s = 00010100, x ^= s + x ^= 0x63 + + This can be done with a loop where s = (s << 1) | (s >> 7). However, + it can also be done by using a single 16-bit (in this case 32-bit) + number 'sx'. Since XOR is an associative operation, we can set 'sx' + to 'ei' and then XOR it with 'sx' left-shifted 1,2,3, and 4 times. + The most significant bits will flow into the high 8 bit positions + and be correctly XOR'd with one another. All that remains will be + to cycle the high 8 bits by XOR'ing them all with the lower 8 bits + afterwards. + + At the same time we're populating sbox and isbox we can precompute + the multiplication we'll need to do to do MixColumns() later. + */ + + // apply affine transformation + sx = ei ^ (ei << 1) ^ (ei << 2) ^ (ei << 3) ^ (ei << 4); + sx = (sx >> 8) ^ (sx & 255) ^ 0x63; + + // update tables + sbox[e] = sx; + isbox[sx] = e; + + /* Mixing columns is done using matrix multiplication. The columns + that are to be mixed are each a single word in the current state. + The state has Nb columns (4 columns). Therefore each column is a + 4 byte word. So to mix the columns in a single column 'c' where + its rows are r0, r1, r2, and r3, we use the following matrix + multiplication: + + [2 3 1 1]*[r0,c]=[r'0,c] + [1 2 3 1] [r1,c] [r'1,c] + [1 1 2 3] [r2,c] [r'2,c] + [3 1 1 2] [r3,c] [r'3,c] + + r0, r1, r2, and r3 are each 1 byte of one of the words in the + state (a column). To do matrix multiplication for each mixed + column c' we multiply the corresponding row from the left matrix + with the corresponding column from the right matrix. In total, we + get 4 equations: + + r0,c' = 2*r0,c + 3*r1,c + 1*r2,c + 1*r3,c + r1,c' = 1*r0,c + 2*r1,c + 3*r2,c + 1*r3,c + r2,c' = 1*r0,c + 1*r1,c + 2*r2,c + 3*r3,c + r3,c' = 3*r0,c + 1*r1,c + 1*r2,c + 2*r3,c + + As usual, the multiplication is as previously defined and the + addition is XOR. In order to optimize mixing columns we can store + the multiplication results in tables. If you think of the whole + column as a word (it might help to visualize by mentally rotating + the equations above by counterclockwise 90 degrees) then you can + see that it would be useful to map the multiplications performed on + each byte (r0, r1, r2, r3) onto a word as well. For instance, we + could map 2*r0,1*r0,1*r0,3*r0 onto a word by storing 2*r0 in the + highest 8 bits and 3*r0 in the lowest 8 bits (with the other two + respectively in the middle). This means that a table can be + constructed that uses r0 as an index to the word. We can do the + same with r1, r2, and r3, creating a total of 4 tables. + + To construct a full c', we can just look up each byte of c in + their respective tables and XOR the results together. + + Also, to build each table we only have to calculate the word + for 2,1,1,3 for every byte ... which we can do on each iteration + of this loop since we will iterate over every byte. After we have + calculated 2,1,1,3 we can get the results for the other tables + by cycling the byte at the end to the beginning. For instance + we can take the result of table 2,1,1,3 and produce table 3,2,1,1 + by moving the right most byte to the left most position just like + how you can imagine the 3 moved out of 2,1,1,3 and to the front + to produce 3,2,1,1. + + There is another optimization in that the same multiples of + the current element we need in order to advance our generator + to the next iteration can be reused in performing the 2,1,1,3 + calculation. We also calculate the inverse mix column tables, + with e,9,d,b being the inverse of 2,1,1,3. + + When we're done, and we need to actually mix columns, the first + byte of each state word should be put through mix[0] (2,1,1,3), + the second through mix[1] (3,2,1,1) and so forth. Then they should + be XOR'd together to produce the fully mixed column. + */ + + // calculate mix and imix table values + sx2 = xtime[sx]; + e2 = xtime[e]; + e4 = xtime[e2]; + e8 = xtime[e4]; + me = + (sx2 << 24) ^ // 2 + (sx << 16) ^ // 1 + (sx << 8) ^ // 1 + (sx ^ sx2); // 3 + ime = + (e2 ^ e4 ^ e8) << 24 ^ // E (14) + (e ^ e8) << 16 ^ // 9 + (e ^ e4 ^ e8) << 8 ^ // D (13) + (e ^ e2 ^ e8); // B (11) + // produce each of the mix tables by rotating the 2,1,1,3 value + for(var n = 0; n < 4; ++n) { + mix[n][e] = me; + imix[n][sx] = ime; + // cycle the right most byte to the left most position + // ie: 2,1,1,3 becomes 3,2,1,1 + me = me << 24 | me >>> 8; + ime = ime << 24 | ime >>> 8; + } + + // get next element and inverse + if(e === 0) { + // 1 is the inverse of 1 + e = ei = 1; + } else { + // e = 2e + 2*2*2*(10e)) = multiply e by 82 (chosen generator) + // ei = ei + 2*2*ei = multiply ei by 5 (inverse generator) + e = e2 ^ xtime[xtime[xtime[e2 ^ e8]]]; + ei ^= xtime[xtime[ei]]; + } + } +} + +/** + * Generates a key schedule using the AES key expansion algorithm. + * + * The AES algorithm takes the Cipher Key, K, and performs a Key Expansion + * routine to generate a key schedule. The Key Expansion generates a total + * of Nb*(Nr + 1) words: the algorithm requires an initial set of Nb words, + * and each of the Nr rounds requires Nb words of key data. The resulting + * key schedule consists of a linear array of 4-byte words, denoted [wi ], + * with i in the range 0 <= i < Nb(Nr + 1). + * + * KeyExpansion(byte key[4*Nk], word w[Nb*(Nr+1)], Nk) + * AES-128 (Nb=4, Nk=4, Nr=10) + * AES-192 (Nb=4, Nk=6, Nr=12) + * AES-256 (Nb=4, Nk=8, Nr=14) + * Note: Nr=Nk+6. + * + * Nb is the number of columns (32-bit words) comprising the State (or + * number of bytes in a block). For AES, Nb=4. + * + * @param key the key to schedule (as an array of 32-bit words). + * @param decrypt true to modify the key schedule to decrypt, false not to. + * + * @return the generated key schedule. + */ +function _expandKey(key, decrypt) { + // copy the key's words to initialize the key schedule + var w = key.slice(0); + + /* RotWord() will rotate a word, moving the first byte to the last + byte's position (shifting the other bytes left). + + We will be getting the value of Rcon at i / Nk. 'i' will iterate + from Nk to (Nb * Nr+1). Nk = 4 (4 byte key), Nb = 4 (4 words in + a block), Nr = Nk + 6 (10). Therefore 'i' will iterate from + 4 to 44 (exclusive). Each time we iterate 4 times, i / Nk will + increase by 1. We use a counter iNk to keep track of this. + */ + + // go through the rounds expanding the key + var temp, iNk = 1; + var Nk = w.length; + var Nr1 = Nk + 6 + 1; + var end = Nb * Nr1; + for(var i = Nk; i < end; ++i) { + temp = w[i - 1]; + if(i % Nk === 0) { + // temp = SubWord(RotWord(temp)) ^ Rcon[i / Nk] + temp = + sbox[temp >>> 16 & 255] << 24 ^ + sbox[temp >>> 8 & 255] << 16 ^ + sbox[temp & 255] << 8 ^ + sbox[temp >>> 24] ^ (rcon[iNk] << 24); + iNk++; + } else if(Nk > 6 && (i % Nk === 4)) { + // temp = SubWord(temp) + temp = + sbox[temp >>> 24] << 24 ^ + sbox[temp >>> 16 & 255] << 16 ^ + sbox[temp >>> 8 & 255] << 8 ^ + sbox[temp & 255]; + } + w[i] = w[i - Nk] ^ temp; + } + + /* When we are updating a cipher block we always use the code path for + encryption whether we are decrypting or not (to shorten code and + simplify the generation of look up tables). However, because there + are differences in the decryption algorithm, other than just swapping + in different look up tables, we must transform our key schedule to + account for these changes: + + 1. The decryption algorithm gets its key rounds in reverse order. + 2. The decryption algorithm adds the round key before mixing columns + instead of afterwards. + + We don't need to modify our key schedule to handle the first case, + we can just traverse the key schedule in reverse order when decrypting. + + The second case requires a little work. + + The tables we built for performing rounds will take an input and then + perform SubBytes() and MixColumns() or, for the decrypt version, + InvSubBytes() and InvMixColumns(). But the decrypt algorithm requires + us to AddRoundKey() before InvMixColumns(). This means we'll need to + apply some transformations to the round key to inverse-mix its columns + so they'll be correct for moving AddRoundKey() to after the state has + had its columns inverse-mixed. + + To inverse-mix the columns of the state when we're decrypting we use a + lookup table that will apply InvSubBytes() and InvMixColumns() at the + same time. However, the round key's bytes are not inverse-substituted + in the decryption algorithm. To get around this problem, we can first + substitute the bytes in the round key so that when we apply the + transformation via the InvSubBytes()+InvMixColumns() table, it will + undo our substitution leaving us with the original value that we + want -- and then inverse-mix that value. + + This change will correctly alter our key schedule so that we can XOR + each round key with our already transformed decryption state. This + allows us to use the same code path as the encryption algorithm. + + We make one more change to the decryption key. Since the decryption + algorithm runs in reverse from the encryption algorithm, we reverse + the order of the round keys to avoid having to iterate over the key + schedule backwards when running the encryption algorithm later in + decryption mode. In addition to reversing the order of the round keys, + we also swap each round key's 2nd and 4th rows. See the comments + section where rounds are performed for more details about why this is + done. These changes are done inline with the other substitution + described above. + */ + if(decrypt) { + var tmp; + var m0 = imix[0]; + var m1 = imix[1]; + var m2 = imix[2]; + var m3 = imix[3]; + var wnew = w.slice(0); + end = w.length; + for(var i = 0, wi = end - Nb; i < end; i += Nb, wi -= Nb) { + // do not sub the first or last round key (round keys are Nb + // words) as no column mixing is performed before they are added, + // but do change the key order + if(i === 0 || i === (end - Nb)) { + wnew[i] = w[wi]; + wnew[i + 1] = w[wi + 3]; + wnew[i + 2] = w[wi + 2]; + wnew[i + 3] = w[wi + 1]; + } else { + // substitute each round key byte because the inverse-mix + // table will inverse-substitute it (effectively cancel the + // substitution because round key bytes aren't sub'd in + // decryption mode) and swap indexes 3 and 1 + for(var n = 0; n < Nb; ++n) { + tmp = w[wi + n]; + wnew[i + (3&-n)] = + m0[sbox[tmp >>> 24]] ^ + m1[sbox[tmp >>> 16 & 255]] ^ + m2[sbox[tmp >>> 8 & 255]] ^ + m3[sbox[tmp & 255]]; + } + } + } + w = wnew; + } + + return w; +} + +/** + * Updates a single block (16 bytes) using AES. The update will either + * encrypt or decrypt the block. + * + * @param w the key schedule. + * @param input the input block (an array of 32-bit words). + * @param output the updated output block. + * @param decrypt true to decrypt the block, false to encrypt it. + */ +function _updateBlock(w, input, output, decrypt) { + /* + Cipher(byte in[4*Nb], byte out[4*Nb], word w[Nb*(Nr+1)]) + begin + byte state[4,Nb] + state = in + AddRoundKey(state, w[0, Nb-1]) + for round = 1 step 1 to Nr-1 + SubBytes(state) + ShiftRows(state) + MixColumns(state) + AddRoundKey(state, w[round*Nb, (round+1)*Nb-1]) + end for + SubBytes(state) + ShiftRows(state) + AddRoundKey(state, w[Nr*Nb, (Nr+1)*Nb-1]) + out = state + end + + InvCipher(byte in[4*Nb], byte out[4*Nb], word w[Nb*(Nr+1)]) + begin + byte state[4,Nb] + state = in + AddRoundKey(state, w[Nr*Nb, (Nr+1)*Nb-1]) + for round = Nr-1 step -1 downto 1 + InvShiftRows(state) + InvSubBytes(state) + AddRoundKey(state, w[round*Nb, (round+1)*Nb-1]) + InvMixColumns(state) + end for + InvShiftRows(state) + InvSubBytes(state) + AddRoundKey(state, w[0, Nb-1]) + out = state + end + */ + + // Encrypt: AddRoundKey(state, w[0, Nb-1]) + // Decrypt: AddRoundKey(state, w[Nr*Nb, (Nr+1)*Nb-1]) + var Nr = w.length / 4 - 1; + var m0, m1, m2, m3, sub; + if(decrypt) { + m0 = imix[0]; + m1 = imix[1]; + m2 = imix[2]; + m3 = imix[3]; + sub = isbox; + } else { + m0 = mix[0]; + m1 = mix[1]; + m2 = mix[2]; + m3 = mix[3]; + sub = sbox; + } + var a, b, c, d, a2, b2, c2; + a = input[0] ^ w[0]; + b = input[decrypt ? 3 : 1] ^ w[1]; + c = input[2] ^ w[2]; + d = input[decrypt ? 1 : 3] ^ w[3]; + var i = 3; + + /* In order to share code we follow the encryption algorithm when both + encrypting and decrypting. To account for the changes required in the + decryption algorithm, we use different lookup tables when decrypting + and use a modified key schedule to account for the difference in the + order of transformations applied when performing rounds. We also get + key rounds in reverse order (relative to encryption). */ + for(var round = 1; round < Nr; ++round) { + /* As described above, we'll be using table lookups to perform the + column mixing. Each column is stored as a word in the state (the + array 'input' has one column as a word at each index). In order to + mix a column, we perform these transformations on each row in c, + which is 1 byte in each word. The new column for c0 is c'0: + + m0 m1 m2 m3 + r0,c'0 = 2*r0,c0 + 3*r1,c0 + 1*r2,c0 + 1*r3,c0 + r1,c'0 = 1*r0,c0 + 2*r1,c0 + 3*r2,c0 + 1*r3,c0 + r2,c'0 = 1*r0,c0 + 1*r1,c0 + 2*r2,c0 + 3*r3,c0 + r3,c'0 = 3*r0,c0 + 1*r1,c0 + 1*r2,c0 + 2*r3,c0 + + So using mix tables where c0 is a word with r0 being its upper + 8 bits and r3 being its lower 8 bits: + + m0[c0 >> 24] will yield this word: [2*r0,1*r0,1*r0,3*r0] + ... + m3[c0 & 255] will yield this word: [1*r3,1*r3,3*r3,2*r3] + + Therefore to mix the columns in each word in the state we + do the following (& 255 omitted for brevity): + c'0,r0 = m0[c0 >> 24] ^ m1[c1 >> 16] ^ m2[c2 >> 8] ^ m3[c3] + c'0,r1 = m0[c0 >> 24] ^ m1[c1 >> 16] ^ m2[c2 >> 8] ^ m3[c3] + c'0,r2 = m0[c0 >> 24] ^ m1[c1 >> 16] ^ m2[c2 >> 8] ^ m3[c3] + c'0,r3 = m0[c0 >> 24] ^ m1[c1 >> 16] ^ m2[c2 >> 8] ^ m3[c3] + + However, before mixing, the algorithm requires us to perform + ShiftRows(). The ShiftRows() transformation cyclically shifts the + last 3 rows of the state over different offsets. The first row + (r = 0) is not shifted. + + s'_r,c = s_r,(c + shift(r, Nb) mod Nb + for 0 < r < 4 and 0 <= c < Nb and + shift(1, 4) = 1 + shift(2, 4) = 2 + shift(3, 4) = 3. + + This causes the first byte in r = 1 to be moved to the end of + the row, the first 2 bytes in r = 2 to be moved to the end of + the row, the first 3 bytes in r = 3 to be moved to the end of + the row: + + r1: [c0 c1 c2 c3] => [c1 c2 c3 c0] + r2: [c0 c1 c2 c3] [c2 c3 c0 c1] + r3: [c0 c1 c2 c3] [c3 c0 c1 c2] + + We can make these substitutions inline with our column mixing to + generate an updated set of equations to produce each word in the + state (note the columns have changed positions): + + c0 c1 c2 c3 => c0 c1 c2 c3 + c0 c1 c2 c3 c1 c2 c3 c0 (cycled 1 byte) + c0 c1 c2 c3 c2 c3 c0 c1 (cycled 2 bytes) + c0 c1 c2 c3 c3 c0 c1 c2 (cycled 3 bytes) + + Therefore: + + c'0 = 2*r0,c0 + 3*r1,c1 + 1*r2,c2 + 1*r3,c3 + c'0 = 1*r0,c0 + 2*r1,c1 + 3*r2,c2 + 1*r3,c3 + c'0 = 1*r0,c0 + 1*r1,c1 + 2*r2,c2 + 3*r3,c3 + c'0 = 3*r0,c0 + 1*r1,c1 + 1*r2,c2 + 2*r3,c3 + + c'1 = 2*r0,c1 + 3*r1,c2 + 1*r2,c3 + 1*r3,c0 + c'1 = 1*r0,c1 + 2*r1,c2 + 3*r2,c3 + 1*r3,c0 + c'1 = 1*r0,c1 + 1*r1,c2 + 2*r2,c3 + 3*r3,c0 + c'1 = 3*r0,c1 + 1*r1,c2 + 1*r2,c3 + 2*r3,c0 + + ... and so forth for c'2 and c'3. The important distinction is + that the columns are cycling, with c0 being used with the m0 + map when calculating c0, but c1 being used with the m0 map when + calculating c1 ... and so forth. + + When performing the inverse we transform the mirror image and + skip the bottom row, instead of the top one, and move upwards: + + c3 c2 c1 c0 => c0 c3 c2 c1 (cycled 3 bytes) *same as encryption + c3 c2 c1 c0 c1 c0 c3 c2 (cycled 2 bytes) + c3 c2 c1 c0 c2 c1 c0 c3 (cycled 1 byte) *same as encryption + c3 c2 c1 c0 c3 c2 c1 c0 + + If you compare the resulting matrices for ShiftRows()+MixColumns() + and for InvShiftRows()+InvMixColumns() the 2nd and 4th columns are + different (in encrypt mode vs. decrypt mode). So in order to use + the same code to handle both encryption and decryption, we will + need to do some mapping. + + If in encryption mode we let a=c0, b=c1, c=c2, d=c3, and r be + a row number in the state, then the resulting matrix in encryption + mode for applying the above transformations would be: + + r1: a b c d + r2: b c d a + r3: c d a b + r4: d a b c + + If we did the same in decryption mode we would get: + + r1: a d c b + r2: b a d c + r3: c b a d + r4: d c b a + + If instead we swap d and b (set b=c3 and d=c1), then we get: + + r1: a b c d + r2: d a b c + r3: c d a b + r4: b c d a + + Now the 1st and 3rd rows are the same as the encryption matrix. All + we need to do then to make the mapping exactly the same is to swap + the 2nd and 4th rows when in decryption mode. To do this without + having to do it on each iteration, we swapped the 2nd and 4th rows + in the decryption key schedule. We also have to do the swap above + when we first pull in the input and when we set the final output. */ + a2 = + m0[a >>> 24] ^ + m1[b >>> 16 & 255] ^ + m2[c >>> 8 & 255] ^ + m3[d & 255] ^ w[++i]; + b2 = + m0[b >>> 24] ^ + m1[c >>> 16 & 255] ^ + m2[d >>> 8 & 255] ^ + m3[a & 255] ^ w[++i]; + c2 = + m0[c >>> 24] ^ + m1[d >>> 16 & 255] ^ + m2[a >>> 8 & 255] ^ + m3[b & 255] ^ w[++i]; + d = + m0[d >>> 24] ^ + m1[a >>> 16 & 255] ^ + m2[b >>> 8 & 255] ^ + m3[c & 255] ^ w[++i]; + a = a2; + b = b2; + c = c2; + } + + /* + Encrypt: + SubBytes(state) + ShiftRows(state) + AddRoundKey(state, w[Nr*Nb, (Nr+1)*Nb-1]) + + Decrypt: + InvShiftRows(state) + InvSubBytes(state) + AddRoundKey(state, w[0, Nb-1]) + */ + // Note: rows are shifted inline + output[0] = + (sub[a >>> 24] << 24) ^ + (sub[b >>> 16 & 255] << 16) ^ + (sub[c >>> 8 & 255] << 8) ^ + (sub[d & 255]) ^ w[++i]; + output[decrypt ? 3 : 1] = + (sub[b >>> 24] << 24) ^ + (sub[c >>> 16 & 255] << 16) ^ + (sub[d >>> 8 & 255] << 8) ^ + (sub[a & 255]) ^ w[++i]; + output[2] = + (sub[c >>> 24] << 24) ^ + (sub[d >>> 16 & 255] << 16) ^ + (sub[a >>> 8 & 255] << 8) ^ + (sub[b & 255]) ^ w[++i]; + output[decrypt ? 1 : 3] = + (sub[d >>> 24] << 24) ^ + (sub[a >>> 16 & 255] << 16) ^ + (sub[b >>> 8 & 255] << 8) ^ + (sub[c & 255]) ^ w[++i]; +} + +/** + * Deprecated. Instead, use: + * + * forge.cipher.createCipher('AES-', key); + * forge.cipher.createDecipher('AES-', key); + * + * Creates a deprecated AES cipher object. This object's mode will default to + * CBC (cipher-block-chaining). + * + * The key and iv may be given as a string of bytes, an array of bytes, a + * byte buffer, or an array of 32-bit words. + * + * @param options the options to use. + * key the symmetric key to use. + * output the buffer to write to. + * decrypt true for decryption, false for encryption. + * mode the cipher mode to use (default: 'CBC'). + * + * @return the cipher. + */ +function _createCipher(options) { + options = options || {}; + var mode = (options.mode || 'CBC').toUpperCase(); + var algorithm = 'AES-' + mode; + + var cipher; + if(options.decrypt) { + cipher = forge.cipher.createDecipher(algorithm, options.key); + } else { + cipher = forge.cipher.createCipher(algorithm, options.key); + } + + // backwards compatible start API + var start = cipher.start; + cipher.start = function(iv, options) { + // backwards compatibility: support second arg as output buffer + var output = null; + if(options instanceof forge.util.ByteBuffer) { + output = options; + options = {}; + } + options = options || {}; + options.output = output; + options.iv = iv; + start.call(cipher, options); + }; + + return cipher; +} diff --git a/node_modules/node-forge/lib/aesCipherSuites.js b/node_modules/node-forge/lib/aesCipherSuites.js new file mode 100644 index 0000000..fed60f3 --- /dev/null +++ b/node_modules/node-forge/lib/aesCipherSuites.js @@ -0,0 +1,282 @@ +/** + * A Javascript implementation of AES Cipher Suites for TLS. + * + * @author Dave Longley + * + * Copyright (c) 2009-2015 Digital Bazaar, Inc. + * + */ +var forge = require('./forge'); +require('./aes'); +require('./tls'); + +var tls = module.exports = forge.tls; + +/** + * Supported cipher suites. + */ +tls.CipherSuites['TLS_RSA_WITH_AES_128_CBC_SHA'] = { + id: [0x00, 0x2f], + name: 'TLS_RSA_WITH_AES_128_CBC_SHA', + initSecurityParameters: function(sp) { + sp.bulk_cipher_algorithm = tls.BulkCipherAlgorithm.aes; + sp.cipher_type = tls.CipherType.block; + sp.enc_key_length = 16; + sp.block_length = 16; + sp.fixed_iv_length = 16; + sp.record_iv_length = 16; + sp.mac_algorithm = tls.MACAlgorithm.hmac_sha1; + sp.mac_length = 20; + sp.mac_key_length = 20; + }, + initConnectionState: initConnectionState +}; +tls.CipherSuites['TLS_RSA_WITH_AES_256_CBC_SHA'] = { + id: [0x00, 0x35], + name: 'TLS_RSA_WITH_AES_256_CBC_SHA', + initSecurityParameters: function(sp) { + sp.bulk_cipher_algorithm = tls.BulkCipherAlgorithm.aes; + sp.cipher_type = tls.CipherType.block; + sp.enc_key_length = 32; + sp.block_length = 16; + sp.fixed_iv_length = 16; + sp.record_iv_length = 16; + sp.mac_algorithm = tls.MACAlgorithm.hmac_sha1; + sp.mac_length = 20; + sp.mac_key_length = 20; + }, + initConnectionState: initConnectionState +}; + +function initConnectionState(state, c, sp) { + var client = (c.entity === forge.tls.ConnectionEnd.client); + + // cipher setup + state.read.cipherState = { + init: false, + cipher: forge.cipher.createDecipher('AES-CBC', client ? + sp.keys.server_write_key : sp.keys.client_write_key), + iv: client ? sp.keys.server_write_IV : sp.keys.client_write_IV + }; + state.write.cipherState = { + init: false, + cipher: forge.cipher.createCipher('AES-CBC', client ? + sp.keys.client_write_key : sp.keys.server_write_key), + iv: client ? sp.keys.client_write_IV : sp.keys.server_write_IV + }; + state.read.cipherFunction = decrypt_aes_cbc_sha1; + state.write.cipherFunction = encrypt_aes_cbc_sha1; + + // MAC setup + state.read.macLength = state.write.macLength = sp.mac_length; + state.read.macFunction = state.write.macFunction = tls.hmac_sha1; +} + +/** + * Encrypts the TLSCompressed record into a TLSCipherText record using AES + * in CBC mode. + * + * @param record the TLSCompressed record to encrypt. + * @param s the ConnectionState to use. + * + * @return true on success, false on failure. + */ +function encrypt_aes_cbc_sha1(record, s) { + var rval = false; + + // append MAC to fragment, update sequence number + var mac = s.macFunction(s.macKey, s.sequenceNumber, record); + record.fragment.putBytes(mac); + s.updateSequenceNumber(); + + // TLS 1.1+ use an explicit IV every time to protect against CBC attacks + var iv; + if(record.version.minor === tls.Versions.TLS_1_0.minor) { + // use the pre-generated IV when initializing for TLS 1.0, otherwise use + // the residue from the previous encryption + iv = s.cipherState.init ? null : s.cipherState.iv; + } else { + iv = forge.random.getBytesSync(16); + } + + s.cipherState.init = true; + + // start cipher + var cipher = s.cipherState.cipher; + cipher.start({iv: iv}); + + // TLS 1.1+ write IV into output + if(record.version.minor >= tls.Versions.TLS_1_1.minor) { + cipher.output.putBytes(iv); + } + + // do encryption (default padding is appropriate) + cipher.update(record.fragment); + if(cipher.finish(encrypt_aes_cbc_sha1_padding)) { + // set record fragment to encrypted output + record.fragment = cipher.output; + record.length = record.fragment.length(); + rval = true; + } + + return rval; +} + +/** + * Handles padding for aes_cbc_sha1 in encrypt mode. + * + * @param blockSize the block size. + * @param input the input buffer. + * @param decrypt true in decrypt mode, false in encrypt mode. + * + * @return true on success, false on failure. + */ +function encrypt_aes_cbc_sha1_padding(blockSize, input, decrypt) { + /* The encrypted data length (TLSCiphertext.length) is one more than the sum + of SecurityParameters.block_length, TLSCompressed.length, + SecurityParameters.mac_length, and padding_length. + + The padding may be any length up to 255 bytes long, as long as it results in + the TLSCiphertext.length being an integral multiple of the block length. + Lengths longer than necessary might be desirable to frustrate attacks on a + protocol based on analysis of the lengths of exchanged messages. Each uint8 + in the padding data vector must be filled with the padding length value. + + The padding length should be such that the total size of the + GenericBlockCipher structure is a multiple of the cipher's block length. + Legal values range from zero to 255, inclusive. This length specifies the + length of the padding field exclusive of the padding_length field itself. + + This is slightly different from PKCS#7 because the padding value is 1 + less than the actual number of padding bytes if you include the + padding_length uint8 itself as a padding byte. */ + if(!decrypt) { + // get the number of padding bytes required to reach the blockSize and + // subtract 1 for the padding value (to make room for the padding_length + // uint8) + var padding = blockSize - (input.length() % blockSize); + input.fillWithByte(padding - 1, padding); + } + return true; +} + +/** + * Handles padding for aes_cbc_sha1 in decrypt mode. + * + * @param blockSize the block size. + * @param output the output buffer. + * @param decrypt true in decrypt mode, false in encrypt mode. + * + * @return true on success, false on failure. + */ +function decrypt_aes_cbc_sha1_padding(blockSize, output, decrypt) { + var rval = true; + if(decrypt) { + /* The last byte in the output specifies the number of padding bytes not + including itself. Each of the padding bytes has the same value as that + last byte (known as the padding_length). Here we check all padding + bytes to ensure they have the value of padding_length even if one of + them is bad in order to ward-off timing attacks. */ + var len = output.length(); + var paddingLength = output.last(); + for(var i = len - 1 - paddingLength; i < len - 1; ++i) { + rval = rval && (output.at(i) == paddingLength); + } + if(rval) { + // trim off padding bytes and last padding length byte + output.truncate(paddingLength + 1); + } + } + return rval; +} + +/** + * Decrypts a TLSCipherText record into a TLSCompressed record using + * AES in CBC mode. + * + * @param record the TLSCipherText record to decrypt. + * @param s the ConnectionState to use. + * + * @return true on success, false on failure. + */ +function decrypt_aes_cbc_sha1(record, s) { + var rval = false; + + var iv; + if(record.version.minor === tls.Versions.TLS_1_0.minor) { + // use pre-generated IV when initializing for TLS 1.0, otherwise use the + // residue from the previous decryption + iv = s.cipherState.init ? null : s.cipherState.iv; + } else { + // TLS 1.1+ use an explicit IV every time to protect against CBC attacks + // that is appended to the record fragment + iv = record.fragment.getBytes(16); + } + + s.cipherState.init = true; + + // start cipher + var cipher = s.cipherState.cipher; + cipher.start({iv: iv}); + + // do decryption + cipher.update(record.fragment); + rval = cipher.finish(decrypt_aes_cbc_sha1_padding); + + // even if decryption fails, keep going to minimize timing attacks + + // decrypted data: + // first (len - 20) bytes = application data + // last 20 bytes = MAC + var macLen = s.macLength; + + // create a random MAC to check against should the mac length check fail + // Note: do this regardless of the failure to keep timing consistent + var mac = forge.random.getBytesSync(macLen); + + // get fragment and mac + var len = cipher.output.length(); + if(len >= macLen) { + record.fragment = cipher.output.getBytes(len - macLen); + mac = cipher.output.getBytes(macLen); + } else { + // bad data, but get bytes anyway to try to keep timing consistent + record.fragment = cipher.output.getBytes(); + } + record.fragment = forge.util.createBuffer(record.fragment); + record.length = record.fragment.length(); + + // see if data integrity checks out, update sequence number + var mac2 = s.macFunction(s.macKey, s.sequenceNumber, record); + s.updateSequenceNumber(); + rval = compareMacs(s.macKey, mac, mac2) && rval; + return rval; +} + +/** + * Safely compare two MACs. This function will compare two MACs in a way + * that protects against timing attacks. + * + * TODO: Expose elsewhere as a utility API. + * + * See: https://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2011/february/double-hmac-verification/ + * + * @param key the MAC key to use. + * @param mac1 as a binary-encoded string of bytes. + * @param mac2 as a binary-encoded string of bytes. + * + * @return true if the MACs are the same, false if not. + */ +function compareMacs(key, mac1, mac2) { + var hmac = forge.hmac.create(); + + hmac.start('SHA1', key); + hmac.update(mac1); + mac1 = hmac.digest().getBytes(); + + hmac.start(null, null); + hmac.update(mac2); + mac2 = hmac.digest().getBytes(); + + return mac1 === mac2; +} diff --git a/node_modules/node-forge/lib/asn1-validator.js b/node_modules/node-forge/lib/asn1-validator.js new file mode 100644 index 0000000..2be3285 --- /dev/null +++ b/node_modules/node-forge/lib/asn1-validator.js @@ -0,0 +1,91 @@ +/** + * Copyright (c) 2019 Digital Bazaar, Inc. + */ + +var forge = require('./forge'); +require('./asn1'); +var asn1 = forge.asn1; + +exports.privateKeyValidator = { + // PrivateKeyInfo + name: 'PrivateKeyInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + // Version (INTEGER) + name: 'PrivateKeyInfo.version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyVersion' + }, { + // privateKeyAlgorithm + name: 'PrivateKeyInfo.privateKeyAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'AlgorithmIdentifier.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'privateKeyOid' + }] + }, { + // PrivateKey + name: 'PrivateKeyInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'privateKey' + }] +}; + +exports.publicKeyValidator = { + name: 'SubjectPublicKeyInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'subjectPublicKeyInfo', + value: [{ + name: 'SubjectPublicKeyInfo.AlgorithmIdentifier', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'AlgorithmIdentifier.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'publicKeyOid' + }] + }, + // capture group for ed25519PublicKey + { + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.BITSTRING, + constructed: false, + composed: true, + captureBitStringValue: 'ed25519PublicKey' + } + // FIXME: this is capture group for rsaPublicKey, use it in this API or + // discard? + /* { + // subjectPublicKey + name: 'SubjectPublicKeyInfo.subjectPublicKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.BITSTRING, + constructed: false, + value: [{ + // RSAPublicKey + name: 'SubjectPublicKeyInfo.subjectPublicKey.RSAPublicKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + optional: true, + captureAsn1: 'rsaPublicKey' + }] + } */ + ] +}; diff --git a/node_modules/node-forge/lib/asn1.js b/node_modules/node-forge/lib/asn1.js new file mode 100644 index 0000000..4025f8a --- /dev/null +++ b/node_modules/node-forge/lib/asn1.js @@ -0,0 +1,1434 @@ +/** + * Javascript implementation of Abstract Syntax Notation Number One. + * + * @author Dave Longley + * + * Copyright (c) 2010-2015 Digital Bazaar, Inc. + * + * An API for storing data using the Abstract Syntax Notation Number One + * format using DER (Distinguished Encoding Rules) encoding. This encoding is + * commonly used to store data for PKI, i.e. X.509 Certificates, and this + * implementation exists for that purpose. + * + * Abstract Syntax Notation Number One (ASN.1) is used to define the abstract + * syntax of information without restricting the way the information is encoded + * for transmission. It provides a standard that allows for open systems + * communication. ASN.1 defines the syntax of information data and a number of + * simple data types as well as a notation for describing them and specifying + * values for them. + * + * The RSA algorithm creates public and private keys that are often stored in + * X.509 or PKCS#X formats -- which use ASN.1 (encoded in DER format). This + * class provides the most basic functionality required to store and load DSA + * keys that are encoded according to ASN.1. + * + * The most common binary encodings for ASN.1 are BER (Basic Encoding Rules) + * and DER (Distinguished Encoding Rules). DER is just a subset of BER that + * has stricter requirements for how data must be encoded. + * + * Each ASN.1 structure has a tag (a byte identifying the ASN.1 structure type) + * and a byte array for the value of this ASN1 structure which may be data or a + * list of ASN.1 structures. + * + * Each ASN.1 structure using BER is (Tag-Length-Value): + * + * | byte 0 | bytes X | bytes Y | + * |--------|---------|---------- + * | tag | length | value | + * + * ASN.1 allows for tags to be of "High-tag-number form" which allows a tag to + * be two or more octets, but that is not supported by this class. A tag is + * only 1 byte. Bits 1-5 give the tag number (ie the data type within a + * particular 'class'), 6 indicates whether or not the ASN.1 value is + * constructed from other ASN.1 values, and bits 7 and 8 give the 'class'. If + * bits 7 and 8 are both zero, the class is UNIVERSAL. If only bit 7 is set, + * then the class is APPLICATION. If only bit 8 is set, then the class is + * CONTEXT_SPECIFIC. If both bits 7 and 8 are set, then the class is PRIVATE. + * The tag numbers for the data types for the class UNIVERSAL are listed below: + * + * UNIVERSAL 0 Reserved for use by the encoding rules + * UNIVERSAL 1 Boolean type + * UNIVERSAL 2 Integer type + * UNIVERSAL 3 Bitstring type + * UNIVERSAL 4 Octetstring type + * UNIVERSAL 5 Null type + * UNIVERSAL 6 Object identifier type + * UNIVERSAL 7 Object descriptor type + * UNIVERSAL 8 External type and Instance-of type + * UNIVERSAL 9 Real type + * UNIVERSAL 10 Enumerated type + * UNIVERSAL 11 Embedded-pdv type + * UNIVERSAL 12 UTF8String type + * UNIVERSAL 13 Relative object identifier type + * UNIVERSAL 14-15 Reserved for future editions + * UNIVERSAL 16 Sequence and Sequence-of types + * UNIVERSAL 17 Set and Set-of types + * UNIVERSAL 18-22, 25-30 Character string types + * UNIVERSAL 23-24 Time types + * + * The length of an ASN.1 structure is specified after the tag identifier. + * There is a definite form and an indefinite form. The indefinite form may + * be used if the encoding is constructed and not all immediately available. + * The indefinite form is encoded using a length byte with only the 8th bit + * set. The end of the constructed object is marked using end-of-contents + * octets (two zero bytes). + * + * The definite form looks like this: + * + * The length may take up 1 or more bytes, it depends on the length of the + * value of the ASN.1 structure. DER encoding requires that if the ASN.1 + * structure has a value that has a length greater than 127, more than 1 byte + * will be used to store its length, otherwise just one byte will be used. + * This is strict. + * + * In the case that the length of the ASN.1 value is less than 127, 1 octet + * (byte) is used to store the "short form" length. The 8th bit has a value of + * 0 indicating the length is "short form" and not "long form" and bits 7-1 + * give the length of the data. (The 8th bit is the left-most, most significant + * bit: also known as big endian or network format). + * + * In the case that the length of the ASN.1 value is greater than 127, 2 to + * 127 octets (bytes) are used to store the "long form" length. The first + * byte's 8th bit is set to 1 to indicate the length is "long form." Bits 7-1 + * give the number of additional octets. All following octets are in base 256 + * with the most significant digit first (typical big-endian binary unsigned + * integer storage). So, for instance, if the length of a value was 257, the + * first byte would be set to: + * + * 10000010 = 130 = 0x82. + * + * This indicates there are 2 octets (base 256) for the length. The second and + * third bytes (the octets just mentioned) would store the length in base 256: + * + * octet 2: 00000001 = 1 * 256^1 = 256 + * octet 3: 00000001 = 1 * 256^0 = 1 + * total = 257 + * + * The algorithm for converting a js integer value of 257 to base-256 is: + * + * var value = 257; + * var bytes = []; + * bytes[0] = (value >>> 8) & 0xFF; // most significant byte first + * bytes[1] = value & 0xFF; // least significant byte last + * + * On the ASN.1 UNIVERSAL Object Identifier (OID) type: + * + * An OID can be written like: "value1.value2.value3...valueN" + * + * The DER encoding rules: + * + * The first byte has the value 40 * value1 + value2. + * The following bytes, if any, encode the remaining values. Each value is + * encoded in base 128, most significant digit first (big endian), with as + * few digits as possible, and the most significant bit of each byte set + * to 1 except the last in each value's encoding. For example: Given the + * OID "1.2.840.113549", its DER encoding is (remember each byte except the + * last one in each encoding is OR'd with 0x80): + * + * byte 1: 40 * 1 + 2 = 42 = 0x2A. + * bytes 2-3: 128 * 6 + 72 = 840 = 6 72 = 6 72 = 0x0648 = 0x8648 + * bytes 4-6: 16384 * 6 + 128 * 119 + 13 = 6 119 13 = 0x06770D = 0x86F70D + * + * The final value is: 0x2A864886F70D. + * The full OID (including ASN.1 tag and length of 6 bytes) is: + * 0x06062A864886F70D + */ +var forge = require('./forge'); +require('./util'); +require('./oids'); + +/* ASN.1 API */ +var asn1 = module.exports = forge.asn1 = forge.asn1 || {}; + +/** + * ASN.1 classes. + */ +asn1.Class = { + UNIVERSAL: 0x00, + APPLICATION: 0x40, + CONTEXT_SPECIFIC: 0x80, + PRIVATE: 0xC0 +}; + +/** + * ASN.1 types. Not all types are supported by this implementation, only + * those necessary to implement a simple PKI are implemented. + */ +asn1.Type = { + NONE: 0, + BOOLEAN: 1, + INTEGER: 2, + BITSTRING: 3, + OCTETSTRING: 4, + NULL: 5, + OID: 6, + ODESC: 7, + EXTERNAL: 8, + REAL: 9, + ENUMERATED: 10, + EMBEDDED: 11, + UTF8: 12, + ROID: 13, + SEQUENCE: 16, + SET: 17, + PRINTABLESTRING: 19, + IA5STRING: 22, + UTCTIME: 23, + GENERALIZEDTIME: 24, + BMPSTRING: 30 +}; + +/** + * Creates a new asn1 object. + * + * @param tagClass the tag class for the object. + * @param type the data type (tag number) for the object. + * @param constructed true if the asn1 object is in constructed form. + * @param value the value for the object, if it is not constructed. + * @param [options] the options to use: + * [bitStringContents] the plain BIT STRING content including padding + * byte. + * + * @return the asn1 object. + */ +asn1.create = function(tagClass, type, constructed, value, options) { + /* An asn1 object has a tagClass, a type, a constructed flag, and a + value. The value's type depends on the constructed flag. If + constructed, it will contain a list of other asn1 objects. If not, + it will contain the ASN.1 value as an array of bytes formatted + according to the ASN.1 data type. */ + + // remove undefined values + if(forge.util.isArray(value)) { + var tmp = []; + for(var i = 0; i < value.length; ++i) { + if(value[i] !== undefined) { + tmp.push(value[i]); + } + } + value = tmp; + } + + var obj = { + tagClass: tagClass, + type: type, + constructed: constructed, + composed: constructed || forge.util.isArray(value), + value: value + }; + if(options && 'bitStringContents' in options) { + // TODO: copy byte buffer if it's a buffer not a string + obj.bitStringContents = options.bitStringContents; + // TODO: add readonly flag to avoid this overhead + // save copy to detect changes + obj.original = asn1.copy(obj); + } + return obj; +}; + +/** + * Copies an asn1 object. + * + * @param obj the asn1 object. + * @param [options] copy options: + * [excludeBitStringContents] true to not copy bitStringContents + * + * @return the a copy of the asn1 object. + */ +asn1.copy = function(obj, options) { + var copy; + + if(forge.util.isArray(obj)) { + copy = []; + for(var i = 0; i < obj.length; ++i) { + copy.push(asn1.copy(obj[i], options)); + } + return copy; + } + + if(typeof obj === 'string') { + // TODO: copy byte buffer if it's a buffer not a string + return obj; + } + + copy = { + tagClass: obj.tagClass, + type: obj.type, + constructed: obj.constructed, + composed: obj.composed, + value: asn1.copy(obj.value, options) + }; + if(options && !options.excludeBitStringContents) { + // TODO: copy byte buffer if it's a buffer not a string + copy.bitStringContents = obj.bitStringContents; + } + return copy; +}; + +/** + * Compares asn1 objects for equality. + * + * Note this function does not run in constant time. + * + * @param obj1 the first asn1 object. + * @param obj2 the second asn1 object. + * @param [options] compare options: + * [includeBitStringContents] true to compare bitStringContents + * + * @return true if the asn1 objects are equal. + */ +asn1.equals = function(obj1, obj2, options) { + if(forge.util.isArray(obj1)) { + if(!forge.util.isArray(obj2)) { + return false; + } + if(obj1.length !== obj2.length) { + return false; + } + for(var i = 0; i < obj1.length; ++i) { + if(!asn1.equals(obj1[i], obj2[i])) { + return false; + } + } + return true; + } + + if(typeof obj1 !== typeof obj2) { + return false; + } + + if(typeof obj1 === 'string') { + return obj1 === obj2; + } + + var equal = obj1.tagClass === obj2.tagClass && + obj1.type === obj2.type && + obj1.constructed === obj2.constructed && + obj1.composed === obj2.composed && + asn1.equals(obj1.value, obj2.value); + if(options && options.includeBitStringContents) { + equal = equal && (obj1.bitStringContents === obj2.bitStringContents); + } + + return equal; +}; + +/** + * Gets the length of a BER-encoded ASN.1 value. + * + * In case the length is not specified, undefined is returned. + * + * @param b the BER-encoded ASN.1 byte buffer, starting with the first + * length byte. + * + * @return the length of the BER-encoded ASN.1 value or undefined. + */ +asn1.getBerValueLength = function(b) { + // TODO: move this function and related DER/BER functions to a der.js + // file; better abstract ASN.1 away from der/ber. + var b2 = b.getByte(); + if(b2 === 0x80) { + return undefined; + } + + // see if the length is "short form" or "long form" (bit 8 set) + var length; + var longForm = b2 & 0x80; + if(!longForm) { + // length is just the first byte + length = b2; + } else { + // the number of bytes the length is specified in bits 7 through 1 + // and each length byte is in big-endian base-256 + length = b.getInt((b2 & 0x7F) << 3); + } + return length; +}; + +/** + * Check if the byte buffer has enough bytes. Throws an Error if not. + * + * @param bytes the byte buffer to parse from. + * @param remaining the bytes remaining in the current parsing state. + * @param n the number of bytes the buffer must have. + */ +function _checkBufferLength(bytes, remaining, n) { + if(n > remaining) { + var error = new Error('Too few bytes to parse DER.'); + error.available = bytes.length(); + error.remaining = remaining; + error.requested = n; + throw error; + } +} + +/** + * Gets the length of a BER-encoded ASN.1 value. + * + * In case the length is not specified, undefined is returned. + * + * @param bytes the byte buffer to parse from. + * @param remaining the bytes remaining in the current parsing state. + * + * @return the length of the BER-encoded ASN.1 value or undefined. + */ +var _getValueLength = function(bytes, remaining) { + // TODO: move this function and related DER/BER functions to a der.js + // file; better abstract ASN.1 away from der/ber. + // fromDer already checked that this byte exists + var b2 = bytes.getByte(); + remaining--; + if(b2 === 0x80) { + return undefined; + } + + // see if the length is "short form" or "long form" (bit 8 set) + var length; + var longForm = b2 & 0x80; + if(!longForm) { + // length is just the first byte + length = b2; + } else { + // the number of bytes the length is specified in bits 7 through 1 + // and each length byte is in big-endian base-256 + var longFormBytes = b2 & 0x7F; + _checkBufferLength(bytes, remaining, longFormBytes); + length = bytes.getInt(longFormBytes << 3); + } + // FIXME: this will only happen for 32 bit getInt with high bit set + if(length < 0) { + throw new Error('Negative length: ' + length); + } + return length; +}; + +/** + * Parses an asn1 object from a byte buffer in DER format. + * + * @param bytes the byte buffer to parse from. + * @param [strict] true to be strict when checking value lengths, false to + * allow truncated values (default: true). + * @param [options] object with options or boolean strict flag + * [strict] true to be strict when checking value lengths, false to + * allow truncated values (default: true). + * [parseAllBytes] true to ensure all bytes are parsed + * (default: true) + * [decodeBitStrings] true to attempt to decode the content of + * BIT STRINGs (not OCTET STRINGs) using strict mode. Note that + * without schema support to understand the data context this can + * erroneously decode values that happen to be valid ASN.1. This + * flag will be deprecated or removed as soon as schema support is + * available. (default: true) + * + * @throws Will throw an error for various malformed input conditions. + * + * @return the parsed asn1 object. + */ +asn1.fromDer = function(bytes, options) { + if(options === undefined) { + options = { + strict: true, + parseAllBytes: true, + decodeBitStrings: true + }; + } + if(typeof options === 'boolean') { + options = { + strict: options, + parseAllBytes: true, + decodeBitStrings: true + }; + } + if(!('strict' in options)) { + options.strict = true; + } + if(!('parseAllBytes' in options)) { + options.parseAllBytes = true; + } + if(!('decodeBitStrings' in options)) { + options.decodeBitStrings = true; + } + + // wrap in buffer if needed + if(typeof bytes === 'string') { + bytes = forge.util.createBuffer(bytes); + } + + var byteCount = bytes.length(); + var value = _fromDer(bytes, bytes.length(), 0, options); + if(options.parseAllBytes && bytes.length() !== 0) { + var error = new Error('Unparsed DER bytes remain after ASN.1 parsing.'); + error.byteCount = byteCount; + error.remaining = bytes.length(); + throw error; + } + return value; +}; + +/** + * Internal function to parse an asn1 object from a byte buffer in DER format. + * + * @param bytes the byte buffer to parse from. + * @param remaining the number of bytes remaining for this chunk. + * @param depth the current parsing depth. + * @param options object with same options as fromDer(). + * + * @return the parsed asn1 object. + */ +function _fromDer(bytes, remaining, depth, options) { + // temporary storage for consumption calculations + var start; + + // minimum length for ASN.1 DER structure is 2 + _checkBufferLength(bytes, remaining, 2); + + // get the first byte + var b1 = bytes.getByte(); + // consumed one byte + remaining--; + + // get the tag class + var tagClass = (b1 & 0xC0); + + // get the type (bits 1-5) + var type = b1 & 0x1F; + + // get the variable value length and adjust remaining bytes + start = bytes.length(); + var length = _getValueLength(bytes, remaining); + remaining -= start - bytes.length(); + + // ensure there are enough bytes to get the value + if(length !== undefined && length > remaining) { + if(options.strict) { + var error = new Error('Too few bytes to read ASN.1 value.'); + error.available = bytes.length(); + error.remaining = remaining; + error.requested = length; + throw error; + } + // Note: be lenient with truncated values and use remaining state bytes + length = remaining; + } + + // value storage + var value; + // possible BIT STRING contents storage + var bitStringContents; + + // constructed flag is bit 6 (32 = 0x20) of the first byte + var constructed = ((b1 & 0x20) === 0x20); + if(constructed) { + // parse child asn1 objects from the value + value = []; + if(length === undefined) { + // asn1 object of indefinite length, read until end tag + for(;;) { + _checkBufferLength(bytes, remaining, 2); + if(bytes.bytes(2) === String.fromCharCode(0, 0)) { + bytes.getBytes(2); + remaining -= 2; + break; + } + start = bytes.length(); + value.push(_fromDer(bytes, remaining, depth + 1, options)); + remaining -= start - bytes.length(); + } + } else { + // parsing asn1 object of definite length + while(length > 0) { + start = bytes.length(); + value.push(_fromDer(bytes, length, depth + 1, options)); + remaining -= start - bytes.length(); + length -= start - bytes.length(); + } + } + } + + // if a BIT STRING, save the contents including padding + if(value === undefined && tagClass === asn1.Class.UNIVERSAL && + type === asn1.Type.BITSTRING) { + bitStringContents = bytes.bytes(length); + } + + // determine if a non-constructed value should be decoded as a composed + // value that contains other ASN.1 objects. BIT STRINGs (and OCTET STRINGs) + // can be used this way. + if(value === undefined && options.decodeBitStrings && + tagClass === asn1.Class.UNIVERSAL && + // FIXME: OCTET STRINGs not yet supported here + // .. other parts of forge expect to decode OCTET STRINGs manually + (type === asn1.Type.BITSTRING /*|| type === asn1.Type.OCTETSTRING*/) && + length > 1) { + // save read position + var savedRead = bytes.read; + var savedRemaining = remaining; + var unused = 0; + if(type === asn1.Type.BITSTRING) { + /* The first octet gives the number of bits by which the length of the + bit string is less than the next multiple of eight (this is called + the "number of unused bits"). + + The second and following octets give the value of the bit string + converted to an octet string. */ + _checkBufferLength(bytes, remaining, 1); + unused = bytes.getByte(); + remaining--; + } + // if all bits are used, maybe the BIT/OCTET STRING holds ASN.1 objs + if(unused === 0) { + try { + // attempt to parse child asn1 object from the value + // (stored in array to signal composed value) + start = bytes.length(); + var subOptions = { + // enforce strict mode to avoid parsing ASN.1 from plain data + strict: true, + decodeBitStrings: true + }; + var composed = _fromDer(bytes, remaining, depth + 1, subOptions); + var used = start - bytes.length(); + remaining -= used; + if(type == asn1.Type.BITSTRING) { + used++; + } + + // if the data all decoded and the class indicates UNIVERSAL or + // CONTEXT_SPECIFIC then assume we've got an encapsulated ASN.1 object + var tc = composed.tagClass; + if(used === length && + (tc === asn1.Class.UNIVERSAL || tc === asn1.Class.CONTEXT_SPECIFIC)) { + value = [composed]; + } + } catch(ex) { + } + } + if(value === undefined) { + // restore read position + bytes.read = savedRead; + remaining = savedRemaining; + } + } + + if(value === undefined) { + // asn1 not constructed or composed, get raw value + // TODO: do DER to OID conversion and vice-versa in .toDer? + + if(length === undefined) { + if(options.strict) { + throw new Error('Non-constructed ASN.1 object of indefinite length.'); + } + // be lenient and use remaining state bytes + length = remaining; + } + + if(type === asn1.Type.BMPSTRING) { + value = ''; + for(; length > 0; length -= 2) { + _checkBufferLength(bytes, remaining, 2); + value += String.fromCharCode(bytes.getInt16()); + remaining -= 2; + } + } else { + value = bytes.getBytes(length); + remaining -= length; + } + } + + // add BIT STRING contents if available + var asn1Options = bitStringContents === undefined ? null : { + bitStringContents: bitStringContents + }; + + // create and return asn1 object + return asn1.create(tagClass, type, constructed, value, asn1Options); +} + +/** + * Converts the given asn1 object to a buffer of bytes in DER format. + * + * @param asn1 the asn1 object to convert to bytes. + * + * @return the buffer of bytes. + */ +asn1.toDer = function(obj) { + var bytes = forge.util.createBuffer(); + + // build the first byte + var b1 = obj.tagClass | obj.type; + + // for storing the ASN.1 value + var value = forge.util.createBuffer(); + + // use BIT STRING contents if available and data not changed + var useBitStringContents = false; + if('bitStringContents' in obj) { + useBitStringContents = true; + if(obj.original) { + useBitStringContents = asn1.equals(obj, obj.original); + } + } + + if(useBitStringContents) { + value.putBytes(obj.bitStringContents); + } else if(obj.composed) { + // if composed, use each child asn1 object's DER bytes as value + // turn on 6th bit (0x20 = 32) to indicate asn1 is constructed + // from other asn1 objects + if(obj.constructed) { + b1 |= 0x20; + } else { + // type is a bit string, add unused bits of 0x00 + value.putByte(0x00); + } + + // add all of the child DER bytes together + for(var i = 0; i < obj.value.length; ++i) { + if(obj.value[i] !== undefined) { + value.putBuffer(asn1.toDer(obj.value[i])); + } + } + } else { + // use asn1.value directly + if(obj.type === asn1.Type.BMPSTRING) { + for(var i = 0; i < obj.value.length; ++i) { + value.putInt16(obj.value.charCodeAt(i)); + } + } else { + // ensure integer is minimally-encoded + // TODO: should all leading bytes be stripped vs just one? + // .. ex '00 00 01' => '01'? + if(obj.type === asn1.Type.INTEGER && + obj.value.length > 1 && + // leading 0x00 for positive integer + ((obj.value.charCodeAt(0) === 0 && + (obj.value.charCodeAt(1) & 0x80) === 0) || + // leading 0xFF for negative integer + (obj.value.charCodeAt(0) === 0xFF && + (obj.value.charCodeAt(1) & 0x80) === 0x80))) { + value.putBytes(obj.value.substr(1)); + } else { + value.putBytes(obj.value); + } + } + } + + // add tag byte + bytes.putByte(b1); + + // use "short form" encoding + if(value.length() <= 127) { + // one byte describes the length + // bit 8 = 0 and bits 7-1 = length + bytes.putByte(value.length() & 0x7F); + } else { + // use "long form" encoding + // 2 to 127 bytes describe the length + // first byte: bit 8 = 1 and bits 7-1 = # of additional bytes + // other bytes: length in base 256, big-endian + var len = value.length(); + var lenBytes = ''; + do { + lenBytes += String.fromCharCode(len & 0xFF); + len = len >>> 8; + } while(len > 0); + + // set first byte to # bytes used to store the length and turn on + // bit 8 to indicate long-form length is used + bytes.putByte(lenBytes.length | 0x80); + + // concatenate length bytes in reverse since they were generated + // little endian and we need big endian + for(var i = lenBytes.length - 1; i >= 0; --i) { + bytes.putByte(lenBytes.charCodeAt(i)); + } + } + + // concatenate value bytes + bytes.putBuffer(value); + return bytes; +}; + +/** + * Converts an OID dot-separated string to a byte buffer. The byte buffer + * contains only the DER-encoded value, not any tag or length bytes. + * + * @param oid the OID dot-separated string. + * + * @return the byte buffer. + */ +asn1.oidToDer = function(oid) { + // split OID into individual values + var values = oid.split('.'); + var bytes = forge.util.createBuffer(); + + // first byte is 40 * value1 + value2 + bytes.putByte(40 * parseInt(values[0], 10) + parseInt(values[1], 10)); + // other bytes are each value in base 128 with 8th bit set except for + // the last byte for each value + var last, valueBytes, value, b; + for(var i = 2; i < values.length; ++i) { + // produce value bytes in reverse because we don't know how many + // bytes it will take to store the value + last = true; + valueBytes = []; + value = parseInt(values[i], 10); + do { + b = value & 0x7F; + value = value >>> 7; + // if value is not last, then turn on 8th bit + if(!last) { + b |= 0x80; + } + valueBytes.push(b); + last = false; + } while(value > 0); + + // add value bytes in reverse (needs to be in big endian) + for(var n = valueBytes.length - 1; n >= 0; --n) { + bytes.putByte(valueBytes[n]); + } + } + + return bytes; +}; + +/** + * Converts a DER-encoded byte buffer to an OID dot-separated string. The + * byte buffer should contain only the DER-encoded value, not any tag or + * length bytes. + * + * @param bytes the byte buffer. + * + * @return the OID dot-separated string. + */ +asn1.derToOid = function(bytes) { + var oid; + + // wrap in buffer if needed + if(typeof bytes === 'string') { + bytes = forge.util.createBuffer(bytes); + } + + // first byte is 40 * value1 + value2 + var b = bytes.getByte(); + oid = Math.floor(b / 40) + '.' + (b % 40); + + // other bytes are each value in base 128 with 8th bit set except for + // the last byte for each value + var value = 0; + while(bytes.length() > 0) { + b = bytes.getByte(); + value = value << 7; + // not the last byte for the value + if(b & 0x80) { + value += b & 0x7F; + } else { + // last byte + oid += '.' + (value + b); + value = 0; + } + } + + return oid; +}; + +/** + * Converts a UTCTime value to a date. + * + * Note: GeneralizedTime has 4 digits for the year and is used for X.509 + * dates past 2049. Parsing that structure hasn't been implemented yet. + * + * @param utc the UTCTime value to convert. + * + * @return the date. + */ +asn1.utcTimeToDate = function(utc) { + /* The following formats can be used: + + YYMMDDhhmmZ + YYMMDDhhmm+hh'mm' + YYMMDDhhmm-hh'mm' + YYMMDDhhmmssZ + YYMMDDhhmmss+hh'mm' + YYMMDDhhmmss-hh'mm' + + Where: + + YY is the least significant two digits of the year + MM is the month (01 to 12) + DD is the day (01 to 31) + hh is the hour (00 to 23) + mm are the minutes (00 to 59) + ss are the seconds (00 to 59) + Z indicates that local time is GMT, + indicates that local time is + later than GMT, and - indicates that local time is earlier than GMT + hh' is the absolute value of the offset from GMT in hours + mm' is the absolute value of the offset from GMT in minutes */ + var date = new Date(); + + // if YY >= 50 use 19xx, if YY < 50 use 20xx + var year = parseInt(utc.substr(0, 2), 10); + year = (year >= 50) ? 1900 + year : 2000 + year; + var MM = parseInt(utc.substr(2, 2), 10) - 1; // use 0-11 for month + var DD = parseInt(utc.substr(4, 2), 10); + var hh = parseInt(utc.substr(6, 2), 10); + var mm = parseInt(utc.substr(8, 2), 10); + var ss = 0; + + // not just YYMMDDhhmmZ + if(utc.length > 11) { + // get character after minutes + var c = utc.charAt(10); + var end = 10; + + // see if seconds are present + if(c !== '+' && c !== '-') { + // get seconds + ss = parseInt(utc.substr(10, 2), 10); + end += 2; + } + } + + // update date + date.setUTCFullYear(year, MM, DD); + date.setUTCHours(hh, mm, ss, 0); + + if(end) { + // get +/- after end of time + c = utc.charAt(end); + if(c === '+' || c === '-') { + // get hours+minutes offset + var hhoffset = parseInt(utc.substr(end + 1, 2), 10); + var mmoffset = parseInt(utc.substr(end + 4, 2), 10); + + // calculate offset in milliseconds + var offset = hhoffset * 60 + mmoffset; + offset *= 60000; + + // apply offset + if(c === '+') { + date.setTime(+date - offset); + } else { + date.setTime(+date + offset); + } + } + } + + return date; +}; + +/** + * Converts a GeneralizedTime value to a date. + * + * @param gentime the GeneralizedTime value to convert. + * + * @return the date. + */ +asn1.generalizedTimeToDate = function(gentime) { + /* The following formats can be used: + + YYYYMMDDHHMMSS + YYYYMMDDHHMMSS.fff + YYYYMMDDHHMMSSZ + YYYYMMDDHHMMSS.fffZ + YYYYMMDDHHMMSS+hh'mm' + YYYYMMDDHHMMSS.fff+hh'mm' + YYYYMMDDHHMMSS-hh'mm' + YYYYMMDDHHMMSS.fff-hh'mm' + + Where: + + YYYY is the year + MM is the month (01 to 12) + DD is the day (01 to 31) + hh is the hour (00 to 23) + mm are the minutes (00 to 59) + ss are the seconds (00 to 59) + .fff is the second fraction, accurate to three decimal places + Z indicates that local time is GMT, + indicates that local time is + later than GMT, and - indicates that local time is earlier than GMT + hh' is the absolute value of the offset from GMT in hours + mm' is the absolute value of the offset from GMT in minutes */ + var date = new Date(); + + var YYYY = parseInt(gentime.substr(0, 4), 10); + var MM = parseInt(gentime.substr(4, 2), 10) - 1; // use 0-11 for month + var DD = parseInt(gentime.substr(6, 2), 10); + var hh = parseInt(gentime.substr(8, 2), 10); + var mm = parseInt(gentime.substr(10, 2), 10); + var ss = parseInt(gentime.substr(12, 2), 10); + var fff = 0; + var offset = 0; + var isUTC = false; + + if(gentime.charAt(gentime.length - 1) === 'Z') { + isUTC = true; + } + + var end = gentime.length - 5, c = gentime.charAt(end); + if(c === '+' || c === '-') { + // get hours+minutes offset + var hhoffset = parseInt(gentime.substr(end + 1, 2), 10); + var mmoffset = parseInt(gentime.substr(end + 4, 2), 10); + + // calculate offset in milliseconds + offset = hhoffset * 60 + mmoffset; + offset *= 60000; + + // apply offset + if(c === '+') { + offset *= -1; + } + + isUTC = true; + } + + // check for second fraction + if(gentime.charAt(14) === '.') { + fff = parseFloat(gentime.substr(14), 10) * 1000; + } + + if(isUTC) { + date.setUTCFullYear(YYYY, MM, DD); + date.setUTCHours(hh, mm, ss, fff); + + // apply offset + date.setTime(+date + offset); + } else { + date.setFullYear(YYYY, MM, DD); + date.setHours(hh, mm, ss, fff); + } + + return date; +}; + +/** + * Converts a date to a UTCTime value. + * + * Note: GeneralizedTime has 4 digits for the year and is used for X.509 + * dates past 2049. Converting to a GeneralizedTime hasn't been + * implemented yet. + * + * @param date the date to convert. + * + * @return the UTCTime value. + */ +asn1.dateToUtcTime = function(date) { + // TODO: validate; currently assumes proper format + if(typeof date === 'string') { + return date; + } + + var rval = ''; + + // create format YYMMDDhhmmssZ + var format = []; + format.push(('' + date.getUTCFullYear()).substr(2)); + format.push('' + (date.getUTCMonth() + 1)); + format.push('' + date.getUTCDate()); + format.push('' + date.getUTCHours()); + format.push('' + date.getUTCMinutes()); + format.push('' + date.getUTCSeconds()); + + // ensure 2 digits are used for each format entry + for(var i = 0; i < format.length; ++i) { + if(format[i].length < 2) { + rval += '0'; + } + rval += format[i]; + } + rval += 'Z'; + + return rval; +}; + +/** + * Converts a date to a GeneralizedTime value. + * + * @param date the date to convert. + * + * @return the GeneralizedTime value as a string. + */ +asn1.dateToGeneralizedTime = function(date) { + // TODO: validate; currently assumes proper format + if(typeof date === 'string') { + return date; + } + + var rval = ''; + + // create format YYYYMMDDHHMMSSZ + var format = []; + format.push('' + date.getUTCFullYear()); + format.push('' + (date.getUTCMonth() + 1)); + format.push('' + date.getUTCDate()); + format.push('' + date.getUTCHours()); + format.push('' + date.getUTCMinutes()); + format.push('' + date.getUTCSeconds()); + + // ensure 2 digits are used for each format entry + for(var i = 0; i < format.length; ++i) { + if(format[i].length < 2) { + rval += '0'; + } + rval += format[i]; + } + rval += 'Z'; + + return rval; +}; + +/** + * Converts a javascript integer to a DER-encoded byte buffer to be used + * as the value for an INTEGER type. + * + * @param x the integer. + * + * @return the byte buffer. + */ +asn1.integerToDer = function(x) { + var rval = forge.util.createBuffer(); + if(x >= -0x80 && x < 0x80) { + return rval.putSignedInt(x, 8); + } + if(x >= -0x8000 && x < 0x8000) { + return rval.putSignedInt(x, 16); + } + if(x >= -0x800000 && x < 0x800000) { + return rval.putSignedInt(x, 24); + } + if(x >= -0x80000000 && x < 0x80000000) { + return rval.putSignedInt(x, 32); + } + var error = new Error('Integer too large; max is 32-bits.'); + error.integer = x; + throw error; +}; + +/** + * Converts a DER-encoded byte buffer to a javascript integer. This is + * typically used to decode the value of an INTEGER type. + * + * @param bytes the byte buffer. + * + * @return the integer. + */ +asn1.derToInteger = function(bytes) { + // wrap in buffer if needed + if(typeof bytes === 'string') { + bytes = forge.util.createBuffer(bytes); + } + + var n = bytes.length() * 8; + if(n > 32) { + throw new Error('Integer too large; max is 32-bits.'); + } + return bytes.getSignedInt(n); +}; + +/** + * Validates that the given ASN.1 object is at least a super set of the + * given ASN.1 structure. Only tag classes and types are checked. An + * optional map may also be provided to capture ASN.1 values while the + * structure is checked. + * + * To capture an ASN.1 value, set an object in the validator's 'capture' + * parameter to the key to use in the capture map. To capture the full + * ASN.1 object, specify 'captureAsn1'. To capture BIT STRING bytes, including + * the leading unused bits counter byte, specify 'captureBitStringContents'. + * To capture BIT STRING bytes, without the leading unused bits counter byte, + * specify 'captureBitStringValue'. + * + * Objects in the validator may set a field 'optional' to true to indicate + * that it isn't necessary to pass validation. + * + * @param obj the ASN.1 object to validate. + * @param v the ASN.1 structure validator. + * @param capture an optional map to capture values in. + * @param errors an optional array for storing validation errors. + * + * @return true on success, false on failure. + */ +asn1.validate = function(obj, v, capture, errors) { + var rval = false; + + // ensure tag class and type are the same if specified + if((obj.tagClass === v.tagClass || typeof(v.tagClass) === 'undefined') && + (obj.type === v.type || typeof(v.type) === 'undefined')) { + // ensure constructed flag is the same if specified + if(obj.constructed === v.constructed || + typeof(v.constructed) === 'undefined') { + rval = true; + + // handle sub values + if(v.value && forge.util.isArray(v.value)) { + var j = 0; + for(var i = 0; rval && i < v.value.length; ++i) { + rval = v.value[i].optional || false; + if(obj.value[j]) { + rval = asn1.validate(obj.value[j], v.value[i], capture, errors); + if(rval) { + ++j; + } else if(v.value[i].optional) { + rval = true; + } + } + if(!rval && errors) { + errors.push( + '[' + v.name + '] ' + + 'Tag class "' + v.tagClass + '", type "' + + v.type + '" expected value length "' + + v.value.length + '", got "' + + obj.value.length + '"'); + } + } + } + + if(rval && capture) { + if(v.capture) { + capture[v.capture] = obj.value; + } + if(v.captureAsn1) { + capture[v.captureAsn1] = obj; + } + if(v.captureBitStringContents && 'bitStringContents' in obj) { + capture[v.captureBitStringContents] = obj.bitStringContents; + } + if(v.captureBitStringValue && 'bitStringContents' in obj) { + var value; + if(obj.bitStringContents.length < 2) { + capture[v.captureBitStringValue] = ''; + } else { + // FIXME: support unused bits with data shifting + var unused = obj.bitStringContents.charCodeAt(0); + if(unused !== 0) { + throw new Error( + 'captureBitStringValue only supported for zero unused bits'); + } + capture[v.captureBitStringValue] = obj.bitStringContents.slice(1); + } + } + } + } else if(errors) { + errors.push( + '[' + v.name + '] ' + + 'Expected constructed "' + v.constructed + '", got "' + + obj.constructed + '"'); + } + } else if(errors) { + if(obj.tagClass !== v.tagClass) { + errors.push( + '[' + v.name + '] ' + + 'Expected tag class "' + v.tagClass + '", got "' + + obj.tagClass + '"'); + } + if(obj.type !== v.type) { + errors.push( + '[' + v.name + '] ' + + 'Expected type "' + v.type + '", got "' + obj.type + '"'); + } + } + return rval; +}; + +// regex for testing for non-latin characters +var _nonLatinRegex = /[^\\u0000-\\u00ff]/; + +/** + * Pretty prints an ASN.1 object to a string. + * + * @param obj the object to write out. + * @param level the level in the tree. + * @param indentation the indentation to use. + * + * @return the string. + */ +asn1.prettyPrint = function(obj, level, indentation) { + var rval = ''; + + // set default level and indentation + level = level || 0; + indentation = indentation || 2; + + // start new line for deep levels + if(level > 0) { + rval += '\n'; + } + + // create indent + var indent = ''; + for(var i = 0; i < level * indentation; ++i) { + indent += ' '; + } + + // print class:type + rval += indent + 'Tag: '; + switch(obj.tagClass) { + case asn1.Class.UNIVERSAL: + rval += 'Universal:'; + break; + case asn1.Class.APPLICATION: + rval += 'Application:'; + break; + case asn1.Class.CONTEXT_SPECIFIC: + rval += 'Context-Specific:'; + break; + case asn1.Class.PRIVATE: + rval += 'Private:'; + break; + } + + if(obj.tagClass === asn1.Class.UNIVERSAL) { + rval += obj.type; + + // known types + switch(obj.type) { + case asn1.Type.NONE: + rval += ' (None)'; + break; + case asn1.Type.BOOLEAN: + rval += ' (Boolean)'; + break; + case asn1.Type.INTEGER: + rval += ' (Integer)'; + break; + case asn1.Type.BITSTRING: + rval += ' (Bit string)'; + break; + case asn1.Type.OCTETSTRING: + rval += ' (Octet string)'; + break; + case asn1.Type.NULL: + rval += ' (Null)'; + break; + case asn1.Type.OID: + rval += ' (Object Identifier)'; + break; + case asn1.Type.ODESC: + rval += ' (Object Descriptor)'; + break; + case asn1.Type.EXTERNAL: + rval += ' (External or Instance of)'; + break; + case asn1.Type.REAL: + rval += ' (Real)'; + break; + case asn1.Type.ENUMERATED: + rval += ' (Enumerated)'; + break; + case asn1.Type.EMBEDDED: + rval += ' (Embedded PDV)'; + break; + case asn1.Type.UTF8: + rval += ' (UTF8)'; + break; + case asn1.Type.ROID: + rval += ' (Relative Object Identifier)'; + break; + case asn1.Type.SEQUENCE: + rval += ' (Sequence)'; + break; + case asn1.Type.SET: + rval += ' (Set)'; + break; + case asn1.Type.PRINTABLESTRING: + rval += ' (Printable String)'; + break; + case asn1.Type.IA5String: + rval += ' (IA5String (ASCII))'; + break; + case asn1.Type.UTCTIME: + rval += ' (UTC time)'; + break; + case asn1.Type.GENERALIZEDTIME: + rval += ' (Generalized time)'; + break; + case asn1.Type.BMPSTRING: + rval += ' (BMP String)'; + break; + } + } else { + rval += obj.type; + } + + rval += '\n'; + rval += indent + 'Constructed: ' + obj.constructed + '\n'; + + if(obj.composed) { + var subvalues = 0; + var sub = ''; + for(var i = 0; i < obj.value.length; ++i) { + if(obj.value[i] !== undefined) { + subvalues += 1; + sub += asn1.prettyPrint(obj.value[i], level + 1, indentation); + if((i + 1) < obj.value.length) { + sub += ','; + } + } + } + rval += indent + 'Sub values: ' + subvalues + sub; + } else { + rval += indent + 'Value: '; + if(obj.type === asn1.Type.OID) { + var oid = asn1.derToOid(obj.value); + rval += oid; + if(forge.pki && forge.pki.oids) { + if(oid in forge.pki.oids) { + rval += ' (' + forge.pki.oids[oid] + ') '; + } + } + } + if(obj.type === asn1.Type.INTEGER) { + try { + rval += asn1.derToInteger(obj.value); + } catch(ex) { + rval += '0x' + forge.util.bytesToHex(obj.value); + } + } else if(obj.type === asn1.Type.BITSTRING) { + // TODO: shift bits as needed to display without padding + if(obj.value.length > 1) { + // remove unused bits field + rval += '0x' + forge.util.bytesToHex(obj.value.slice(1)); + } else { + rval += '(none)'; + } + // show unused bit count + if(obj.value.length > 0) { + var unused = obj.value.charCodeAt(0); + if(unused == 1) { + rval += ' (1 unused bit shown)'; + } else if(unused > 1) { + rval += ' (' + unused + ' unused bits shown)'; + } + } + } else if(obj.type === asn1.Type.OCTETSTRING) { + if(!_nonLatinRegex.test(obj.value)) { + rval += '(' + obj.value + ') '; + } + rval += '0x' + forge.util.bytesToHex(obj.value); + } else if(obj.type === asn1.Type.UTF8) { + try { + rval += forge.util.decodeUtf8(obj.value); + } catch(e) { + if(e.message === 'URI malformed') { + rval += + '0x' + forge.util.bytesToHex(obj.value) + ' (malformed UTF8)'; + } else { + throw e; + } + } + } else if(obj.type === asn1.Type.PRINTABLESTRING || + obj.type === asn1.Type.IA5String) { + rval += obj.value; + } else if(_nonLatinRegex.test(obj.value)) { + rval += '0x' + forge.util.bytesToHex(obj.value); + } else if(obj.value.length === 0) { + rval += '[null]'; + } else { + rval += obj.value; + } + } + + return rval; +}; diff --git a/node_modules/node-forge/lib/baseN.js b/node_modules/node-forge/lib/baseN.js new file mode 100644 index 0000000..824fa36 --- /dev/null +++ b/node_modules/node-forge/lib/baseN.js @@ -0,0 +1,186 @@ +/** + * Base-N/Base-X encoding/decoding functions. + * + * Original implementation from base-x: + * https://github.com/cryptocoinjs/base-x + * + * Which is MIT licensed: + * + * The MIT License (MIT) + * + * Copyright base-x contributors (c) 2016 + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ +var api = {}; +module.exports = api; + +// baseN alphabet indexes +var _reverseAlphabets = {}; + +/** + * BaseN-encodes a Uint8Array using the given alphabet. + * + * @param input the Uint8Array to encode. + * @param maxline the maximum number of encoded characters per line to use, + * defaults to none. + * + * @return the baseN-encoded output string. + */ +api.encode = function(input, alphabet, maxline) { + if(typeof alphabet !== 'string') { + throw new TypeError('"alphabet" must be a string.'); + } + if(maxline !== undefined && typeof maxline !== 'number') { + throw new TypeError('"maxline" must be a number.'); + } + + var output = ''; + + if(!(input instanceof Uint8Array)) { + // assume forge byte buffer + output = _encodeWithByteBuffer(input, alphabet); + } else { + var i = 0; + var base = alphabet.length; + var first = alphabet.charAt(0); + var digits = [0]; + for(i = 0; i < input.length; ++i) { + for(var j = 0, carry = input[i]; j < digits.length; ++j) { + carry += digits[j] << 8; + digits[j] = carry % base; + carry = (carry / base) | 0; + } + + while(carry > 0) { + digits.push(carry % base); + carry = (carry / base) | 0; + } + } + + // deal with leading zeros + for(i = 0; input[i] === 0 && i < input.length - 1; ++i) { + output += first; + } + // convert digits to a string + for(i = digits.length - 1; i >= 0; --i) { + output += alphabet[digits[i]]; + } + } + + if(maxline) { + var regex = new RegExp('.{1,' + maxline + '}', 'g'); + output = output.match(regex).join('\r\n'); + } + + return output; +}; + +/** + * Decodes a baseN-encoded (using the given alphabet) string to a + * Uint8Array. + * + * @param input the baseN-encoded input string. + * + * @return the Uint8Array. + */ +api.decode = function(input, alphabet) { + if(typeof input !== 'string') { + throw new TypeError('"input" must be a string.'); + } + if(typeof alphabet !== 'string') { + throw new TypeError('"alphabet" must be a string.'); + } + + var table = _reverseAlphabets[alphabet]; + if(!table) { + // compute reverse alphabet + table = _reverseAlphabets[alphabet] = []; + for(var i = 0; i < alphabet.length; ++i) { + table[alphabet.charCodeAt(i)] = i; + } + } + + // remove whitespace characters + input = input.replace(/\s/g, ''); + + var base = alphabet.length; + var first = alphabet.charAt(0); + var bytes = [0]; + for(var i = 0; i < input.length; i++) { + var value = table[input.charCodeAt(i)]; + if(value === undefined) { + return; + } + + for(var j = 0, carry = value; j < bytes.length; ++j) { + carry += bytes[j] * base; + bytes[j] = carry & 0xff; + carry >>= 8; + } + + while(carry > 0) { + bytes.push(carry & 0xff); + carry >>= 8; + } + } + + // deal with leading zeros + for(var k = 0; input[k] === first && k < input.length - 1; ++k) { + bytes.push(0); + } + + if(typeof Buffer !== 'undefined') { + return Buffer.from(bytes.reverse()); + } + + return new Uint8Array(bytes.reverse()); +}; + +function _encodeWithByteBuffer(input, alphabet) { + var i = 0; + var base = alphabet.length; + var first = alphabet.charAt(0); + var digits = [0]; + for(i = 0; i < input.length(); ++i) { + for(var j = 0, carry = input.at(i); j < digits.length; ++j) { + carry += digits[j] << 8; + digits[j] = carry % base; + carry = (carry / base) | 0; + } + + while(carry > 0) { + digits.push(carry % base); + carry = (carry / base) | 0; + } + } + + var output = ''; + + // deal with leading zeros + for(i = 0; input.at(i) === 0 && i < input.length() - 1; ++i) { + output += first; + } + // convert digits to a string + for(i = digits.length - 1; i >= 0; --i) { + output += alphabet[digits[i]]; + } + + return output; +} diff --git a/node_modules/node-forge/lib/cipher.js b/node_modules/node-forge/lib/cipher.js new file mode 100644 index 0000000..f2c36e6 --- /dev/null +++ b/node_modules/node-forge/lib/cipher.js @@ -0,0 +1,230 @@ +/** + * Cipher base API. + * + * @author Dave Longley + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); + +module.exports = forge.cipher = forge.cipher || {}; + +// registered algorithms +forge.cipher.algorithms = forge.cipher.algorithms || {}; + +/** + * Creates a cipher object that can be used to encrypt data using the given + * algorithm and key. The algorithm may be provided as a string value for a + * previously registered algorithm or it may be given as a cipher algorithm + * API object. + * + * @param algorithm the algorithm to use, either a string or an algorithm API + * object. + * @param key the key to use, as a binary-encoded string of bytes or a + * byte buffer. + * + * @return the cipher. + */ +forge.cipher.createCipher = function(algorithm, key) { + var api = algorithm; + if(typeof api === 'string') { + api = forge.cipher.getAlgorithm(api); + if(api) { + api = api(); + } + } + if(!api) { + throw new Error('Unsupported algorithm: ' + algorithm); + } + + // assume block cipher + return new forge.cipher.BlockCipher({ + algorithm: api, + key: key, + decrypt: false + }); +}; + +/** + * Creates a decipher object that can be used to decrypt data using the given + * algorithm and key. The algorithm may be provided as a string value for a + * previously registered algorithm or it may be given as a cipher algorithm + * API object. + * + * @param algorithm the algorithm to use, either a string or an algorithm API + * object. + * @param key the key to use, as a binary-encoded string of bytes or a + * byte buffer. + * + * @return the cipher. + */ +forge.cipher.createDecipher = function(algorithm, key) { + var api = algorithm; + if(typeof api === 'string') { + api = forge.cipher.getAlgorithm(api); + if(api) { + api = api(); + } + } + if(!api) { + throw new Error('Unsupported algorithm: ' + algorithm); + } + + // assume block cipher + return new forge.cipher.BlockCipher({ + algorithm: api, + key: key, + decrypt: true + }); +}; + +/** + * Registers an algorithm by name. If the name was already registered, the + * algorithm API object will be overwritten. + * + * @param name the name of the algorithm. + * @param algorithm the algorithm API object. + */ +forge.cipher.registerAlgorithm = function(name, algorithm) { + name = name.toUpperCase(); + forge.cipher.algorithms[name] = algorithm; +}; + +/** + * Gets a registered algorithm by name. + * + * @param name the name of the algorithm. + * + * @return the algorithm, if found, null if not. + */ +forge.cipher.getAlgorithm = function(name) { + name = name.toUpperCase(); + if(name in forge.cipher.algorithms) { + return forge.cipher.algorithms[name]; + } + return null; +}; + +var BlockCipher = forge.cipher.BlockCipher = function(options) { + this.algorithm = options.algorithm; + this.mode = this.algorithm.mode; + this.blockSize = this.mode.blockSize; + this._finish = false; + this._input = null; + this.output = null; + this._op = options.decrypt ? this.mode.decrypt : this.mode.encrypt; + this._decrypt = options.decrypt; + this.algorithm.initialize(options); +}; + +/** + * Starts or restarts the encryption or decryption process, whichever + * was previously configured. + * + * For non-GCM mode, the IV may be a binary-encoded string of bytes, an array + * of bytes, a byte buffer, or an array of 32-bit integers. If the IV is in + * bytes, then it must be Nb (16) bytes in length. If the IV is given in as + * 32-bit integers, then it must be 4 integers long. + * + * Note: an IV is not required or used in ECB mode. + * + * For GCM-mode, the IV must be given as a binary-encoded string of bytes or + * a byte buffer. The number of bytes should be 12 (96 bits) as recommended + * by NIST SP-800-38D but another length may be given. + * + * @param options the options to use: + * iv the initialization vector to use as a binary-encoded string of + * bytes, null to reuse the last ciphered block from a previous + * update() (this "residue" method is for legacy support only). + * additionalData additional authentication data as a binary-encoded + * string of bytes, for 'GCM' mode, (default: none). + * tagLength desired length of authentication tag, in bits, for + * 'GCM' mode (0-128, default: 128). + * tag the authentication tag to check if decrypting, as a + * binary-encoded string of bytes. + * output the output the buffer to write to, null to create one. + */ +BlockCipher.prototype.start = function(options) { + options = options || {}; + var opts = {}; + for(var key in options) { + opts[key] = options[key]; + } + opts.decrypt = this._decrypt; + this._finish = false; + this._input = forge.util.createBuffer(); + this.output = options.output || forge.util.createBuffer(); + this.mode.start(opts); +}; + +/** + * Updates the next block according to the cipher mode. + * + * @param input the buffer to read from. + */ +BlockCipher.prototype.update = function(input) { + if(input) { + // input given, so empty it into the input buffer + this._input.putBuffer(input); + } + + // do cipher operation until it needs more input and not finished + while(!this._op.call(this.mode, this._input, this.output, this._finish) && + !this._finish) {} + + // free consumed memory from input buffer + this._input.compact(); +}; + +/** + * Finishes encrypting or decrypting. + * + * @param pad a padding function to use in CBC mode, null for default, + * signature(blockSize, buffer, decrypt). + * + * @return true if successful, false on error. + */ +BlockCipher.prototype.finish = function(pad) { + // backwards-compatibility w/deprecated padding API + // Note: will overwrite padding functions even after another start() call + if(pad && (this.mode.name === 'ECB' || this.mode.name === 'CBC')) { + this.mode.pad = function(input) { + return pad(this.blockSize, input, false); + }; + this.mode.unpad = function(output) { + return pad(this.blockSize, output, true); + }; + } + + // build options for padding and afterFinish functions + var options = {}; + options.decrypt = this._decrypt; + + // get # of bytes that won't fill a block + options.overflow = this._input.length() % this.blockSize; + + if(!this._decrypt && this.mode.pad) { + if(!this.mode.pad(this._input, options)) { + return false; + } + } + + // do final update + this._finish = true; + this.update(); + + if(this._decrypt && this.mode.unpad) { + if(!this.mode.unpad(this.output, options)) { + return false; + } + } + + if(this.mode.afterFinish) { + if(!this.mode.afterFinish(this.output, options)) { + return false; + } + } + + return true; +}; diff --git a/node_modules/node-forge/lib/cipherModes.js b/node_modules/node-forge/lib/cipherModes.js new file mode 100644 index 0000000..339915c --- /dev/null +++ b/node_modules/node-forge/lib/cipherModes.js @@ -0,0 +1,999 @@ +/** + * Supported cipher modes. + * + * @author Dave Longley + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); + +forge.cipher = forge.cipher || {}; + +// supported cipher modes +var modes = module.exports = forge.cipher.modes = forge.cipher.modes || {}; + +/** Electronic codebook (ECB) (Don't use this; it's not secure) **/ + +modes.ecb = function(options) { + options = options || {}; + this.name = 'ECB'; + this.cipher = options.cipher; + this.blockSize = options.blockSize || 16; + this._ints = this.blockSize / 4; + this._inBlock = new Array(this._ints); + this._outBlock = new Array(this._ints); +}; + +modes.ecb.prototype.start = function(options) {}; + +modes.ecb.prototype.encrypt = function(input, output, finish) { + // not enough input to encrypt + if(input.length() < this.blockSize && !(finish && input.length() > 0)) { + return true; + } + + // get next block + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = input.getInt32(); + } + + // encrypt block + this.cipher.encrypt(this._inBlock, this._outBlock); + + // write output + for(var i = 0; i < this._ints; ++i) { + output.putInt32(this._outBlock[i]); + } +}; + +modes.ecb.prototype.decrypt = function(input, output, finish) { + // not enough input to decrypt + if(input.length() < this.blockSize && !(finish && input.length() > 0)) { + return true; + } + + // get next block + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = input.getInt32(); + } + + // decrypt block + this.cipher.decrypt(this._inBlock, this._outBlock); + + // write output + for(var i = 0; i < this._ints; ++i) { + output.putInt32(this._outBlock[i]); + } +}; + +modes.ecb.prototype.pad = function(input, options) { + // add PKCS#7 padding to block (each pad byte is the + // value of the number of pad bytes) + var padding = (input.length() === this.blockSize ? + this.blockSize : (this.blockSize - input.length())); + input.fillWithByte(padding, padding); + return true; +}; + +modes.ecb.prototype.unpad = function(output, options) { + // check for error: input data not a multiple of blockSize + if(options.overflow > 0) { + return false; + } + + // ensure padding byte count is valid + var len = output.length(); + var count = output.at(len - 1); + if(count > (this.blockSize << 2)) { + return false; + } + + // trim off padding bytes + output.truncate(count); + return true; +}; + +/** Cipher-block Chaining (CBC) **/ + +modes.cbc = function(options) { + options = options || {}; + this.name = 'CBC'; + this.cipher = options.cipher; + this.blockSize = options.blockSize || 16; + this._ints = this.blockSize / 4; + this._inBlock = new Array(this._ints); + this._outBlock = new Array(this._ints); +}; + +modes.cbc.prototype.start = function(options) { + // Note: legacy support for using IV residue (has security flaws) + // if IV is null, reuse block from previous processing + if(options.iv === null) { + // must have a previous block + if(!this._prev) { + throw new Error('Invalid IV parameter.'); + } + this._iv = this._prev.slice(0); + } else if(!('iv' in options)) { + throw new Error('Invalid IV parameter.'); + } else { + // save IV as "previous" block + this._iv = transformIV(options.iv, this.blockSize); + this._prev = this._iv.slice(0); + } +}; + +modes.cbc.prototype.encrypt = function(input, output, finish) { + // not enough input to encrypt + if(input.length() < this.blockSize && !(finish && input.length() > 0)) { + return true; + } + + // get next block + // CBC XOR's IV (or previous block) with plaintext + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = this._prev[i] ^ input.getInt32(); + } + + // encrypt block + this.cipher.encrypt(this._inBlock, this._outBlock); + + // write output, save previous block + for(var i = 0; i < this._ints; ++i) { + output.putInt32(this._outBlock[i]); + } + this._prev = this._outBlock; +}; + +modes.cbc.prototype.decrypt = function(input, output, finish) { + // not enough input to decrypt + if(input.length() < this.blockSize && !(finish && input.length() > 0)) { + return true; + } + + // get next block + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = input.getInt32(); + } + + // decrypt block + this.cipher.decrypt(this._inBlock, this._outBlock); + + // write output, save previous ciphered block + // CBC XOR's IV (or previous block) with ciphertext + for(var i = 0; i < this._ints; ++i) { + output.putInt32(this._prev[i] ^ this._outBlock[i]); + } + this._prev = this._inBlock.slice(0); +}; + +modes.cbc.prototype.pad = function(input, options) { + // add PKCS#7 padding to block (each pad byte is the + // value of the number of pad bytes) + var padding = (input.length() === this.blockSize ? + this.blockSize : (this.blockSize - input.length())); + input.fillWithByte(padding, padding); + return true; +}; + +modes.cbc.prototype.unpad = function(output, options) { + // check for error: input data not a multiple of blockSize + if(options.overflow > 0) { + return false; + } + + // ensure padding byte count is valid + var len = output.length(); + var count = output.at(len - 1); + if(count > (this.blockSize << 2)) { + return false; + } + + // trim off padding bytes + output.truncate(count); + return true; +}; + +/** Cipher feedback (CFB) **/ + +modes.cfb = function(options) { + options = options || {}; + this.name = 'CFB'; + this.cipher = options.cipher; + this.blockSize = options.blockSize || 16; + this._ints = this.blockSize / 4; + this._inBlock = null; + this._outBlock = new Array(this._ints); + this._partialBlock = new Array(this._ints); + this._partialOutput = forge.util.createBuffer(); + this._partialBytes = 0; +}; + +modes.cfb.prototype.start = function(options) { + if(!('iv' in options)) { + throw new Error('Invalid IV parameter.'); + } + // use IV as first input + this._iv = transformIV(options.iv, this.blockSize); + this._inBlock = this._iv.slice(0); + this._partialBytes = 0; +}; + +modes.cfb.prototype.encrypt = function(input, output, finish) { + // not enough input to encrypt + var inputLength = input.length(); + if(inputLength === 0) { + return true; + } + + // encrypt block + this.cipher.encrypt(this._inBlock, this._outBlock); + + // handle full block + if(this._partialBytes === 0 && inputLength >= this.blockSize) { + // XOR input with output, write input as output + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = input.getInt32() ^ this._outBlock[i]; + output.putInt32(this._inBlock[i]); + } + return; + } + + // handle partial block + var partialBytes = (this.blockSize - inputLength) % this.blockSize; + if(partialBytes > 0) { + partialBytes = this.blockSize - partialBytes; + } + + // XOR input with output, write input as partial output + this._partialOutput.clear(); + for(var i = 0; i < this._ints; ++i) { + this._partialBlock[i] = input.getInt32() ^ this._outBlock[i]; + this._partialOutput.putInt32(this._partialBlock[i]); + } + + if(partialBytes > 0) { + // block still incomplete, restore input buffer + input.read -= this.blockSize; + } else { + // block complete, update input block + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = this._partialBlock[i]; + } + } + + // skip any previous partial bytes + if(this._partialBytes > 0) { + this._partialOutput.getBytes(this._partialBytes); + } + + if(partialBytes > 0 && !finish) { + output.putBytes(this._partialOutput.getBytes( + partialBytes - this._partialBytes)); + this._partialBytes = partialBytes; + return true; + } + + output.putBytes(this._partialOutput.getBytes( + inputLength - this._partialBytes)); + this._partialBytes = 0; +}; + +modes.cfb.prototype.decrypt = function(input, output, finish) { + // not enough input to decrypt + var inputLength = input.length(); + if(inputLength === 0) { + return true; + } + + // encrypt block (CFB always uses encryption mode) + this.cipher.encrypt(this._inBlock, this._outBlock); + + // handle full block + if(this._partialBytes === 0 && inputLength >= this.blockSize) { + // XOR input with output, write input as output + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = input.getInt32(); + output.putInt32(this._inBlock[i] ^ this._outBlock[i]); + } + return; + } + + // handle partial block + var partialBytes = (this.blockSize - inputLength) % this.blockSize; + if(partialBytes > 0) { + partialBytes = this.blockSize - partialBytes; + } + + // XOR input with output, write input as partial output + this._partialOutput.clear(); + for(var i = 0; i < this._ints; ++i) { + this._partialBlock[i] = input.getInt32(); + this._partialOutput.putInt32(this._partialBlock[i] ^ this._outBlock[i]); + } + + if(partialBytes > 0) { + // block still incomplete, restore input buffer + input.read -= this.blockSize; + } else { + // block complete, update input block + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = this._partialBlock[i]; + } + } + + // skip any previous partial bytes + if(this._partialBytes > 0) { + this._partialOutput.getBytes(this._partialBytes); + } + + if(partialBytes > 0 && !finish) { + output.putBytes(this._partialOutput.getBytes( + partialBytes - this._partialBytes)); + this._partialBytes = partialBytes; + return true; + } + + output.putBytes(this._partialOutput.getBytes( + inputLength - this._partialBytes)); + this._partialBytes = 0; +}; + +/** Output feedback (OFB) **/ + +modes.ofb = function(options) { + options = options || {}; + this.name = 'OFB'; + this.cipher = options.cipher; + this.blockSize = options.blockSize || 16; + this._ints = this.blockSize / 4; + this._inBlock = null; + this._outBlock = new Array(this._ints); + this._partialOutput = forge.util.createBuffer(); + this._partialBytes = 0; +}; + +modes.ofb.prototype.start = function(options) { + if(!('iv' in options)) { + throw new Error('Invalid IV parameter.'); + } + // use IV as first input + this._iv = transformIV(options.iv, this.blockSize); + this._inBlock = this._iv.slice(0); + this._partialBytes = 0; +}; + +modes.ofb.prototype.encrypt = function(input, output, finish) { + // not enough input to encrypt + var inputLength = input.length(); + if(input.length() === 0) { + return true; + } + + // encrypt block (OFB always uses encryption mode) + this.cipher.encrypt(this._inBlock, this._outBlock); + + // handle full block + if(this._partialBytes === 0 && inputLength >= this.blockSize) { + // XOR input with output and update next input + for(var i = 0; i < this._ints; ++i) { + output.putInt32(input.getInt32() ^ this._outBlock[i]); + this._inBlock[i] = this._outBlock[i]; + } + return; + } + + // handle partial block + var partialBytes = (this.blockSize - inputLength) % this.blockSize; + if(partialBytes > 0) { + partialBytes = this.blockSize - partialBytes; + } + + // XOR input with output + this._partialOutput.clear(); + for(var i = 0; i < this._ints; ++i) { + this._partialOutput.putInt32(input.getInt32() ^ this._outBlock[i]); + } + + if(partialBytes > 0) { + // block still incomplete, restore input buffer + input.read -= this.blockSize; + } else { + // block complete, update input block + for(var i = 0; i < this._ints; ++i) { + this._inBlock[i] = this._outBlock[i]; + } + } + + // skip any previous partial bytes + if(this._partialBytes > 0) { + this._partialOutput.getBytes(this._partialBytes); + } + + if(partialBytes > 0 && !finish) { + output.putBytes(this._partialOutput.getBytes( + partialBytes - this._partialBytes)); + this._partialBytes = partialBytes; + return true; + } + + output.putBytes(this._partialOutput.getBytes( + inputLength - this._partialBytes)); + this._partialBytes = 0; +}; + +modes.ofb.prototype.decrypt = modes.ofb.prototype.encrypt; + +/** Counter (CTR) **/ + +modes.ctr = function(options) { + options = options || {}; + this.name = 'CTR'; + this.cipher = options.cipher; + this.blockSize = options.blockSize || 16; + this._ints = this.blockSize / 4; + this._inBlock = null; + this._outBlock = new Array(this._ints); + this._partialOutput = forge.util.createBuffer(); + this._partialBytes = 0; +}; + +modes.ctr.prototype.start = function(options) { + if(!('iv' in options)) { + throw new Error('Invalid IV parameter.'); + } + // use IV as first input + this._iv = transformIV(options.iv, this.blockSize); + this._inBlock = this._iv.slice(0); + this._partialBytes = 0; +}; + +modes.ctr.prototype.encrypt = function(input, output, finish) { + // not enough input to encrypt + var inputLength = input.length(); + if(inputLength === 0) { + return true; + } + + // encrypt block (CTR always uses encryption mode) + this.cipher.encrypt(this._inBlock, this._outBlock); + + // handle full block + if(this._partialBytes === 0 && inputLength >= this.blockSize) { + // XOR input with output + for(var i = 0; i < this._ints; ++i) { + output.putInt32(input.getInt32() ^ this._outBlock[i]); + } + } else { + // handle partial block + var partialBytes = (this.blockSize - inputLength) % this.blockSize; + if(partialBytes > 0) { + partialBytes = this.blockSize - partialBytes; + } + + // XOR input with output + this._partialOutput.clear(); + for(var i = 0; i < this._ints; ++i) { + this._partialOutput.putInt32(input.getInt32() ^ this._outBlock[i]); + } + + if(partialBytes > 0) { + // block still incomplete, restore input buffer + input.read -= this.blockSize; + } + + // skip any previous partial bytes + if(this._partialBytes > 0) { + this._partialOutput.getBytes(this._partialBytes); + } + + if(partialBytes > 0 && !finish) { + output.putBytes(this._partialOutput.getBytes( + partialBytes - this._partialBytes)); + this._partialBytes = partialBytes; + return true; + } + + output.putBytes(this._partialOutput.getBytes( + inputLength - this._partialBytes)); + this._partialBytes = 0; + } + + // block complete, increment counter (input block) + inc32(this._inBlock); +}; + +modes.ctr.prototype.decrypt = modes.ctr.prototype.encrypt; + +/** Galois/Counter Mode (GCM) **/ + +modes.gcm = function(options) { + options = options || {}; + this.name = 'GCM'; + this.cipher = options.cipher; + this.blockSize = options.blockSize || 16; + this._ints = this.blockSize / 4; + this._inBlock = new Array(this._ints); + this._outBlock = new Array(this._ints); + this._partialOutput = forge.util.createBuffer(); + this._partialBytes = 0; + + // R is actually this value concatenated with 120 more zero bits, but + // we only XOR against R so the other zeros have no effect -- we just + // apply this value to the first integer in a block + this._R = 0xE1000000; +}; + +modes.gcm.prototype.start = function(options) { + if(!('iv' in options)) { + throw new Error('Invalid IV parameter.'); + } + // ensure IV is a byte buffer + var iv = forge.util.createBuffer(options.iv); + + // no ciphered data processed yet + this._cipherLength = 0; + + // default additional data is none + var additionalData; + if('additionalData' in options) { + additionalData = forge.util.createBuffer(options.additionalData); + } else { + additionalData = forge.util.createBuffer(); + } + + // default tag length is 128 bits + if('tagLength' in options) { + this._tagLength = options.tagLength; + } else { + this._tagLength = 128; + } + + // if tag is given, ensure tag matches tag length + this._tag = null; + if(options.decrypt) { + // save tag to check later + this._tag = forge.util.createBuffer(options.tag).getBytes(); + if(this._tag.length !== (this._tagLength / 8)) { + throw new Error('Authentication tag does not match tag length.'); + } + } + + // create tmp storage for hash calculation + this._hashBlock = new Array(this._ints); + + // no tag generated yet + this.tag = null; + + // generate hash subkey + // (apply block cipher to "zero" block) + this._hashSubkey = new Array(this._ints); + this.cipher.encrypt([0, 0, 0, 0], this._hashSubkey); + + // generate table M + // use 4-bit tables (32 component decomposition of a 16 byte value) + // 8-bit tables take more space and are known to have security + // vulnerabilities (in native implementations) + this.componentBits = 4; + this._m = this.generateHashTable(this._hashSubkey, this.componentBits); + + // Note: support IV length different from 96 bits? (only supporting + // 96 bits is recommended by NIST SP-800-38D) + // generate J_0 + var ivLength = iv.length(); + if(ivLength === 12) { + // 96-bit IV + this._j0 = [iv.getInt32(), iv.getInt32(), iv.getInt32(), 1]; + } else { + // IV is NOT 96-bits + this._j0 = [0, 0, 0, 0]; + while(iv.length() > 0) { + this._j0 = this.ghash( + this._hashSubkey, this._j0, + [iv.getInt32(), iv.getInt32(), iv.getInt32(), iv.getInt32()]); + } + this._j0 = this.ghash( + this._hashSubkey, this._j0, [0, 0].concat(from64To32(ivLength * 8))); + } + + // generate ICB (initial counter block) + this._inBlock = this._j0.slice(0); + inc32(this._inBlock); + this._partialBytes = 0; + + // consume authentication data + additionalData = forge.util.createBuffer(additionalData); + // save additional data length as a BE 64-bit number + this._aDataLength = from64To32(additionalData.length() * 8); + // pad additional data to 128 bit (16 byte) block size + var overflow = additionalData.length() % this.blockSize; + if(overflow) { + additionalData.fillWithByte(0, this.blockSize - overflow); + } + this._s = [0, 0, 0, 0]; + while(additionalData.length() > 0) { + this._s = this.ghash(this._hashSubkey, this._s, [ + additionalData.getInt32(), + additionalData.getInt32(), + additionalData.getInt32(), + additionalData.getInt32() + ]); + } +}; + +modes.gcm.prototype.encrypt = function(input, output, finish) { + // not enough input to encrypt + var inputLength = input.length(); + if(inputLength === 0) { + return true; + } + + // encrypt block + this.cipher.encrypt(this._inBlock, this._outBlock); + + // handle full block + if(this._partialBytes === 0 && inputLength >= this.blockSize) { + // XOR input with output + for(var i = 0; i < this._ints; ++i) { + output.putInt32(this._outBlock[i] ^= input.getInt32()); + } + this._cipherLength += this.blockSize; + } else { + // handle partial block + var partialBytes = (this.blockSize - inputLength) % this.blockSize; + if(partialBytes > 0) { + partialBytes = this.blockSize - partialBytes; + } + + // XOR input with output + this._partialOutput.clear(); + for(var i = 0; i < this._ints; ++i) { + this._partialOutput.putInt32(input.getInt32() ^ this._outBlock[i]); + } + + if(partialBytes <= 0 || finish) { + // handle overflow prior to hashing + if(finish) { + // get block overflow + var overflow = inputLength % this.blockSize; + this._cipherLength += overflow; + // truncate for hash function + this._partialOutput.truncate(this.blockSize - overflow); + } else { + this._cipherLength += this.blockSize; + } + + // get output block for hashing + for(var i = 0; i < this._ints; ++i) { + this._outBlock[i] = this._partialOutput.getInt32(); + } + this._partialOutput.read -= this.blockSize; + } + + // skip any previous partial bytes + if(this._partialBytes > 0) { + this._partialOutput.getBytes(this._partialBytes); + } + + if(partialBytes > 0 && !finish) { + // block still incomplete, restore input buffer, get partial output, + // and return early + input.read -= this.blockSize; + output.putBytes(this._partialOutput.getBytes( + partialBytes - this._partialBytes)); + this._partialBytes = partialBytes; + return true; + } + + output.putBytes(this._partialOutput.getBytes( + inputLength - this._partialBytes)); + this._partialBytes = 0; + } + + // update hash block S + this._s = this.ghash(this._hashSubkey, this._s, this._outBlock); + + // increment counter (input block) + inc32(this._inBlock); +}; + +modes.gcm.prototype.decrypt = function(input, output, finish) { + // not enough input to decrypt + var inputLength = input.length(); + if(inputLength < this.blockSize && !(finish && inputLength > 0)) { + return true; + } + + // encrypt block (GCM always uses encryption mode) + this.cipher.encrypt(this._inBlock, this._outBlock); + + // increment counter (input block) + inc32(this._inBlock); + + // update hash block S + this._hashBlock[0] = input.getInt32(); + this._hashBlock[1] = input.getInt32(); + this._hashBlock[2] = input.getInt32(); + this._hashBlock[3] = input.getInt32(); + this._s = this.ghash(this._hashSubkey, this._s, this._hashBlock); + + // XOR hash input with output + for(var i = 0; i < this._ints; ++i) { + output.putInt32(this._outBlock[i] ^ this._hashBlock[i]); + } + + // increment cipher data length + if(inputLength < this.blockSize) { + this._cipherLength += inputLength % this.blockSize; + } else { + this._cipherLength += this.blockSize; + } +}; + +modes.gcm.prototype.afterFinish = function(output, options) { + var rval = true; + + // handle overflow + if(options.decrypt && options.overflow) { + output.truncate(this.blockSize - options.overflow); + } + + // handle authentication tag + this.tag = forge.util.createBuffer(); + + // concatenate additional data length with cipher length + var lengths = this._aDataLength.concat(from64To32(this._cipherLength * 8)); + + // include lengths in hash + this._s = this.ghash(this._hashSubkey, this._s, lengths); + + // do GCTR(J_0, S) + var tag = []; + this.cipher.encrypt(this._j0, tag); + for(var i = 0; i < this._ints; ++i) { + this.tag.putInt32(this._s[i] ^ tag[i]); + } + + // trim tag to length + this.tag.truncate(this.tag.length() % (this._tagLength / 8)); + + // check authentication tag + if(options.decrypt && this.tag.bytes() !== this._tag) { + rval = false; + } + + return rval; +}; + +/** + * See NIST SP-800-38D 6.3 (Algorithm 1). This function performs Galois + * field multiplication. The field, GF(2^128), is defined by the polynomial: + * + * x^128 + x^7 + x^2 + x + 1 + * + * Which is represented in little-endian binary form as: 11100001 (0xe1). When + * the value of a coefficient is 1, a bit is set. The value R, is the + * concatenation of this value and 120 zero bits, yielding a 128-bit value + * which matches the block size. + * + * This function will multiply two elements (vectors of bytes), X and Y, in + * the field GF(2^128). The result is initialized to zero. For each bit of + * X (out of 128), x_i, if x_i is set, then the result is multiplied (XOR'd) + * by the current value of Y. For each bit, the value of Y will be raised by + * a power of x (multiplied by the polynomial x). This can be achieved by + * shifting Y once to the right. If the current value of Y, prior to being + * multiplied by x, has 0 as its LSB, then it is a 127th degree polynomial. + * Otherwise, we must divide by R after shifting to find the remainder. + * + * @param x the first block to multiply by the second. + * @param y the second block to multiply by the first. + * + * @return the block result of the multiplication. + */ +modes.gcm.prototype.multiply = function(x, y) { + var z_i = [0, 0, 0, 0]; + var v_i = y.slice(0); + + // calculate Z_128 (block has 128 bits) + for(var i = 0; i < 128; ++i) { + // if x_i is 0, Z_{i+1} = Z_i (unchanged) + // else Z_{i+1} = Z_i ^ V_i + // get x_i by finding 32-bit int position, then left shift 1 by remainder + var x_i = x[(i / 32) | 0] & (1 << (31 - i % 32)); + if(x_i) { + z_i[0] ^= v_i[0]; + z_i[1] ^= v_i[1]; + z_i[2] ^= v_i[2]; + z_i[3] ^= v_i[3]; + } + + // if LSB(V_i) is 1, V_i = V_i >> 1 + // else V_i = (V_i >> 1) ^ R + this.pow(v_i, v_i); + } + + return z_i; +}; + +modes.gcm.prototype.pow = function(x, out) { + // if LSB(x) is 1, x = x >>> 1 + // else x = (x >>> 1) ^ R + var lsb = x[3] & 1; + + // always do x >>> 1: + // starting with the rightmost integer, shift each integer to the right + // one bit, pulling in the bit from the integer to the left as its top + // most bit (do this for the last 3 integers) + for(var i = 3; i > 0; --i) { + out[i] = (x[i] >>> 1) | ((x[i - 1] & 1) << 31); + } + // shift the first integer normally + out[0] = x[0] >>> 1; + + // if lsb was not set, then polynomial had a degree of 127 and doesn't + // need to divided; otherwise, XOR with R to find the remainder; we only + // need to XOR the first integer since R technically ends w/120 zero bits + if(lsb) { + out[0] ^= this._R; + } +}; + +modes.gcm.prototype.tableMultiply = function(x) { + // assumes 4-bit tables are used + var z = [0, 0, 0, 0]; + for(var i = 0; i < 32; ++i) { + var idx = (i / 8) | 0; + var x_i = (x[idx] >>> ((7 - (i % 8)) * 4)) & 0xF; + var ah = this._m[i][x_i]; + z[0] ^= ah[0]; + z[1] ^= ah[1]; + z[2] ^= ah[2]; + z[3] ^= ah[3]; + } + return z; +}; + +/** + * A continuing version of the GHASH algorithm that operates on a single + * block. The hash block, last hash value (Ym) and the new block to hash + * are given. + * + * @param h the hash block. + * @param y the previous value for Ym, use [0, 0, 0, 0] for a new hash. + * @param x the block to hash. + * + * @return the hashed value (Ym). + */ +modes.gcm.prototype.ghash = function(h, y, x) { + y[0] ^= x[0]; + y[1] ^= x[1]; + y[2] ^= x[2]; + y[3] ^= x[3]; + return this.tableMultiply(y); + //return this.multiply(y, h); +}; + +/** + * Precomputes a table for multiplying against the hash subkey. This + * mechanism provides a substantial speed increase over multiplication + * performed without a table. The table-based multiplication this table is + * for solves X * H by multiplying each component of X by H and then + * composing the results together using XOR. + * + * This function can be used to generate tables with different bit sizes + * for the components, however, this implementation assumes there are + * 32 components of X (which is a 16 byte vector), therefore each component + * takes 4-bits (so the table is constructed with bits=4). + * + * @param h the hash subkey. + * @param bits the bit size for a component. + */ +modes.gcm.prototype.generateHashTable = function(h, bits) { + // TODO: There are further optimizations that would use only the + // first table M_0 (or some variant) along with a remainder table; + // this can be explored in the future + var multiplier = 8 / bits; + var perInt = 4 * multiplier; + var size = 16 * multiplier; + var m = new Array(size); + for(var i = 0; i < size; ++i) { + var tmp = [0, 0, 0, 0]; + var idx = (i / perInt) | 0; + var shft = ((perInt - 1 - (i % perInt)) * bits); + tmp[idx] = (1 << (bits - 1)) << shft; + m[i] = this.generateSubHashTable(this.multiply(tmp, h), bits); + } + return m; +}; + +/** + * Generates a table for multiplying against the hash subkey for one + * particular component (out of all possible component values). + * + * @param mid the pre-multiplied value for the middle key of the table. + * @param bits the bit size for a component. + */ +modes.gcm.prototype.generateSubHashTable = function(mid, bits) { + // compute the table quickly by minimizing the number of + // POW operations -- they only need to be performed for powers of 2, + // all other entries can be composed from those powers using XOR + var size = 1 << bits; + var half = size >>> 1; + var m = new Array(size); + m[half] = mid.slice(0); + var i = half >>> 1; + while(i > 0) { + // raise m0[2 * i] and store in m0[i] + this.pow(m[2 * i], m[i] = []); + i >>= 1; + } + i = 2; + while(i < half) { + for(var j = 1; j < i; ++j) { + var m_i = m[i]; + var m_j = m[j]; + m[i + j] = [ + m_i[0] ^ m_j[0], + m_i[1] ^ m_j[1], + m_i[2] ^ m_j[2], + m_i[3] ^ m_j[3] + ]; + } + i *= 2; + } + m[0] = [0, 0, 0, 0]; + /* Note: We could avoid storing these by doing composition during multiply + calculate top half using composition by speed is preferred. */ + for(i = half + 1; i < size; ++i) { + var c = m[i ^ half]; + m[i] = [mid[0] ^ c[0], mid[1] ^ c[1], mid[2] ^ c[2], mid[3] ^ c[3]]; + } + return m; +}; + +/** Utility functions */ + +function transformIV(iv, blockSize) { + if(typeof iv === 'string') { + // convert iv string into byte buffer + iv = forge.util.createBuffer(iv); + } + + if(forge.util.isArray(iv) && iv.length > 4) { + // convert iv byte array into byte buffer + var tmp = iv; + iv = forge.util.createBuffer(); + for(var i = 0; i < tmp.length; ++i) { + iv.putByte(tmp[i]); + } + } + + if(iv.length() < blockSize) { + throw new Error( + 'Invalid IV length; got ' + iv.length() + + ' bytes and expected ' + blockSize + ' bytes.'); + } + + if(!forge.util.isArray(iv)) { + // convert iv byte buffer into 32-bit integer array + var ints = []; + var blocks = blockSize / 4; + for(var i = 0; i < blocks; ++i) { + ints.push(iv.getInt32()); + } + iv = ints; + } + + return iv; +} + +function inc32(block) { + // increment last 32 bits of block only + block[block.length - 1] = (block[block.length - 1] + 1) & 0xFFFFFFFF; +} + +function from64To32(num) { + // convert 64-bit number to two BE Int32s + return [(num / 0x100000000) | 0, num & 0xFFFFFFFF]; +} diff --git a/node_modules/node-forge/lib/des.js b/node_modules/node-forge/lib/des.js new file mode 100644 index 0000000..ed8239a --- /dev/null +++ b/node_modules/node-forge/lib/des.js @@ -0,0 +1,496 @@ +/** + * DES (Data Encryption Standard) implementation. + * + * This implementation supports DES as well as 3DES-EDE in ECB and CBC mode. + * It is based on the BSD-licensed implementation by Paul Tero: + * + * Paul Tero, July 2001 + * http://www.tero.co.uk/des/ + * + * Optimised for performance with large blocks by + * Michael Hayworth, November 2001 + * http://www.netdealing.com + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @author Stefan Siegl + * @author Dave Longley + * + * Copyright (c) 2012 Stefan Siegl + * Copyright (c) 2012-2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./cipher'); +require('./cipherModes'); +require('./util'); + +/* DES API */ +module.exports = forge.des = forge.des || {}; + +/** + * Deprecated. Instead, use: + * + * var cipher = forge.cipher.createCipher('DES-', key); + * cipher.start({iv: iv}); + * + * Creates an DES cipher object to encrypt data using the given symmetric key. + * The output will be stored in the 'output' member of the returned cipher. + * + * The key and iv may be given as binary-encoded strings of bytes or + * byte buffers. + * + * @param key the symmetric key to use (64 or 192 bits). + * @param iv the initialization vector to use. + * @param output the buffer to write to, null to create one. + * @param mode the cipher mode to use (default: 'CBC' if IV is + * given, 'ECB' if null). + * + * @return the cipher. + */ +forge.des.startEncrypting = function(key, iv, output, mode) { + var cipher = _createCipher({ + key: key, + output: output, + decrypt: false, + mode: mode || (iv === null ? 'ECB' : 'CBC') + }); + cipher.start(iv); + return cipher; +}; + +/** + * Deprecated. Instead, use: + * + * var cipher = forge.cipher.createCipher('DES-', key); + * + * Creates an DES cipher object to encrypt data using the given symmetric key. + * + * The key may be given as a binary-encoded string of bytes or a byte buffer. + * + * @param key the symmetric key to use (64 or 192 bits). + * @param mode the cipher mode to use (default: 'CBC'). + * + * @return the cipher. + */ +forge.des.createEncryptionCipher = function(key, mode) { + return _createCipher({ + key: key, + output: null, + decrypt: false, + mode: mode + }); +}; + +/** + * Deprecated. Instead, use: + * + * var decipher = forge.cipher.createDecipher('DES-', key); + * decipher.start({iv: iv}); + * + * Creates an DES cipher object to decrypt data using the given symmetric key. + * The output will be stored in the 'output' member of the returned cipher. + * + * The key and iv may be given as binary-encoded strings of bytes or + * byte buffers. + * + * @param key the symmetric key to use (64 or 192 bits). + * @param iv the initialization vector to use. + * @param output the buffer to write to, null to create one. + * @param mode the cipher mode to use (default: 'CBC' if IV is + * given, 'ECB' if null). + * + * @return the cipher. + */ +forge.des.startDecrypting = function(key, iv, output, mode) { + var cipher = _createCipher({ + key: key, + output: output, + decrypt: true, + mode: mode || (iv === null ? 'ECB' : 'CBC') + }); + cipher.start(iv); + return cipher; +}; + +/** + * Deprecated. Instead, use: + * + * var decipher = forge.cipher.createDecipher('DES-', key); + * + * Creates an DES cipher object to decrypt data using the given symmetric key. + * + * The key may be given as a binary-encoded string of bytes or a byte buffer. + * + * @param key the symmetric key to use (64 or 192 bits). + * @param mode the cipher mode to use (default: 'CBC'). + * + * @return the cipher. + */ +forge.des.createDecryptionCipher = function(key, mode) { + return _createCipher({ + key: key, + output: null, + decrypt: true, + mode: mode + }); +}; + +/** + * Creates a new DES cipher algorithm object. + * + * @param name the name of the algorithm. + * @param mode the mode factory function. + * + * @return the DES algorithm object. + */ +forge.des.Algorithm = function(name, mode) { + var self = this; + self.name = name; + self.mode = new mode({ + blockSize: 8, + cipher: { + encrypt: function(inBlock, outBlock) { + return _updateBlock(self._keys, inBlock, outBlock, false); + }, + decrypt: function(inBlock, outBlock) { + return _updateBlock(self._keys, inBlock, outBlock, true); + } + } + }); + self._init = false; +}; + +/** + * Initializes this DES algorithm by expanding its key. + * + * @param options the options to use. + * key the key to use with this algorithm. + * decrypt true if the algorithm should be initialized for decryption, + * false for encryption. + */ +forge.des.Algorithm.prototype.initialize = function(options) { + if(this._init) { + return; + } + + var key = forge.util.createBuffer(options.key); + if(this.name.indexOf('3DES') === 0) { + if(key.length() !== 24) { + throw new Error('Invalid Triple-DES key size: ' + key.length() * 8); + } + } + + // do key expansion to 16 or 48 subkeys (single or triple DES) + this._keys = _createKeys(key); + this._init = true; +}; + +/** Register DES algorithms **/ + +registerAlgorithm('DES-ECB', forge.cipher.modes.ecb); +registerAlgorithm('DES-CBC', forge.cipher.modes.cbc); +registerAlgorithm('DES-CFB', forge.cipher.modes.cfb); +registerAlgorithm('DES-OFB', forge.cipher.modes.ofb); +registerAlgorithm('DES-CTR', forge.cipher.modes.ctr); + +registerAlgorithm('3DES-ECB', forge.cipher.modes.ecb); +registerAlgorithm('3DES-CBC', forge.cipher.modes.cbc); +registerAlgorithm('3DES-CFB', forge.cipher.modes.cfb); +registerAlgorithm('3DES-OFB', forge.cipher.modes.ofb); +registerAlgorithm('3DES-CTR', forge.cipher.modes.ctr); + +function registerAlgorithm(name, mode) { + var factory = function() { + return new forge.des.Algorithm(name, mode); + }; + forge.cipher.registerAlgorithm(name, factory); +} + +/** DES implementation **/ + +var spfunction1 = [0x1010400,0,0x10000,0x1010404,0x1010004,0x10404,0x4,0x10000,0x400,0x1010400,0x1010404,0x400,0x1000404,0x1010004,0x1000000,0x4,0x404,0x1000400,0x1000400,0x10400,0x10400,0x1010000,0x1010000,0x1000404,0x10004,0x1000004,0x1000004,0x10004,0,0x404,0x10404,0x1000000,0x10000,0x1010404,0x4,0x1010000,0x1010400,0x1000000,0x1000000,0x400,0x1010004,0x10000,0x10400,0x1000004,0x400,0x4,0x1000404,0x10404,0x1010404,0x10004,0x1010000,0x1000404,0x1000004,0x404,0x10404,0x1010400,0x404,0x1000400,0x1000400,0,0x10004,0x10400,0,0x1010004]; +var spfunction2 = [-0x7fef7fe0,-0x7fff8000,0x8000,0x108020,0x100000,0x20,-0x7fefffe0,-0x7fff7fe0,-0x7fffffe0,-0x7fef7fe0,-0x7fef8000,-0x80000000,-0x7fff8000,0x100000,0x20,-0x7fefffe0,0x108000,0x100020,-0x7fff7fe0,0,-0x80000000,0x8000,0x108020,-0x7ff00000,0x100020,-0x7fffffe0,0,0x108000,0x8020,-0x7fef8000,-0x7ff00000,0x8020,0,0x108020,-0x7fefffe0,0x100000,-0x7fff7fe0,-0x7ff00000,-0x7fef8000,0x8000,-0x7ff00000,-0x7fff8000,0x20,-0x7fef7fe0,0x108020,0x20,0x8000,-0x80000000,0x8020,-0x7fef8000,0x100000,-0x7fffffe0,0x100020,-0x7fff7fe0,-0x7fffffe0,0x100020,0x108000,0,-0x7fff8000,0x8020,-0x80000000,-0x7fefffe0,-0x7fef7fe0,0x108000]; +var spfunction3 = [0x208,0x8020200,0,0x8020008,0x8000200,0,0x20208,0x8000200,0x20008,0x8000008,0x8000008,0x20000,0x8020208,0x20008,0x8020000,0x208,0x8000000,0x8,0x8020200,0x200,0x20200,0x8020000,0x8020008,0x20208,0x8000208,0x20200,0x20000,0x8000208,0x8,0x8020208,0x200,0x8000000,0x8020200,0x8000000,0x20008,0x208,0x20000,0x8020200,0x8000200,0,0x200,0x20008,0x8020208,0x8000200,0x8000008,0x200,0,0x8020008,0x8000208,0x20000,0x8000000,0x8020208,0x8,0x20208,0x20200,0x8000008,0x8020000,0x8000208,0x208,0x8020000,0x20208,0x8,0x8020008,0x20200]; +var spfunction4 = [0x802001,0x2081,0x2081,0x80,0x802080,0x800081,0x800001,0x2001,0,0x802000,0x802000,0x802081,0x81,0,0x800080,0x800001,0x1,0x2000,0x800000,0x802001,0x80,0x800000,0x2001,0x2080,0x800081,0x1,0x2080,0x800080,0x2000,0x802080,0x802081,0x81,0x800080,0x800001,0x802000,0x802081,0x81,0,0,0x802000,0x2080,0x800080,0x800081,0x1,0x802001,0x2081,0x2081,0x80,0x802081,0x81,0x1,0x2000,0x800001,0x2001,0x802080,0x800081,0x2001,0x2080,0x800000,0x802001,0x80,0x800000,0x2000,0x802080]; +var spfunction5 = [0x100,0x2080100,0x2080000,0x42000100,0x80000,0x100,0x40000000,0x2080000,0x40080100,0x80000,0x2000100,0x40080100,0x42000100,0x42080000,0x80100,0x40000000,0x2000000,0x40080000,0x40080000,0,0x40000100,0x42080100,0x42080100,0x2000100,0x42080000,0x40000100,0,0x42000000,0x2080100,0x2000000,0x42000000,0x80100,0x80000,0x42000100,0x100,0x2000000,0x40000000,0x2080000,0x42000100,0x40080100,0x2000100,0x40000000,0x42080000,0x2080100,0x40080100,0x100,0x2000000,0x42080000,0x42080100,0x80100,0x42000000,0x42080100,0x2080000,0,0x40080000,0x42000000,0x80100,0x2000100,0x40000100,0x80000,0,0x40080000,0x2080100,0x40000100]; +var spfunction6 = [0x20000010,0x20400000,0x4000,0x20404010,0x20400000,0x10,0x20404010,0x400000,0x20004000,0x404010,0x400000,0x20000010,0x400010,0x20004000,0x20000000,0x4010,0,0x400010,0x20004010,0x4000,0x404000,0x20004010,0x10,0x20400010,0x20400010,0,0x404010,0x20404000,0x4010,0x404000,0x20404000,0x20000000,0x20004000,0x10,0x20400010,0x404000,0x20404010,0x400000,0x4010,0x20000010,0x400000,0x20004000,0x20000000,0x4010,0x20000010,0x20404010,0x404000,0x20400000,0x404010,0x20404000,0,0x20400010,0x10,0x4000,0x20400000,0x404010,0x4000,0x400010,0x20004010,0,0x20404000,0x20000000,0x400010,0x20004010]; +var spfunction7 = [0x200000,0x4200002,0x4000802,0,0x800,0x4000802,0x200802,0x4200800,0x4200802,0x200000,0,0x4000002,0x2,0x4000000,0x4200002,0x802,0x4000800,0x200802,0x200002,0x4000800,0x4000002,0x4200000,0x4200800,0x200002,0x4200000,0x800,0x802,0x4200802,0x200800,0x2,0x4000000,0x200800,0x4000000,0x200800,0x200000,0x4000802,0x4000802,0x4200002,0x4200002,0x2,0x200002,0x4000000,0x4000800,0x200000,0x4200800,0x802,0x200802,0x4200800,0x802,0x4000002,0x4200802,0x4200000,0x200800,0,0x2,0x4200802,0,0x200802,0x4200000,0x800,0x4000002,0x4000800,0x800,0x200002]; +var spfunction8 = [0x10001040,0x1000,0x40000,0x10041040,0x10000000,0x10001040,0x40,0x10000000,0x40040,0x10040000,0x10041040,0x41000,0x10041000,0x41040,0x1000,0x40,0x10040000,0x10000040,0x10001000,0x1040,0x41000,0x40040,0x10040040,0x10041000,0x1040,0,0,0x10040040,0x10000040,0x10001000,0x41040,0x40000,0x41040,0x40000,0x10041000,0x1000,0x40,0x10040040,0x1000,0x41040,0x10001000,0x40,0x10000040,0x10040000,0x10040040,0x10000000,0x40000,0x10001040,0,0x10041040,0x40040,0x10000040,0x10040000,0x10001000,0x10001040,0,0x10041040,0x41000,0x41000,0x1040,0x1040,0x40040,0x10000000,0x10041000]; + +/** + * Create necessary sub keys. + * + * @param key the 64-bit or 192-bit key. + * + * @return the expanded keys. + */ +function _createKeys(key) { + var pc2bytes0 = [0,0x4,0x20000000,0x20000004,0x10000,0x10004,0x20010000,0x20010004,0x200,0x204,0x20000200,0x20000204,0x10200,0x10204,0x20010200,0x20010204], + pc2bytes1 = [0,0x1,0x100000,0x100001,0x4000000,0x4000001,0x4100000,0x4100001,0x100,0x101,0x100100,0x100101,0x4000100,0x4000101,0x4100100,0x4100101], + pc2bytes2 = [0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808,0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808], + pc2bytes3 = [0,0x200000,0x8000000,0x8200000,0x2000,0x202000,0x8002000,0x8202000,0x20000,0x220000,0x8020000,0x8220000,0x22000,0x222000,0x8022000,0x8222000], + pc2bytes4 = [0,0x40000,0x10,0x40010,0,0x40000,0x10,0x40010,0x1000,0x41000,0x1010,0x41010,0x1000,0x41000,0x1010,0x41010], + pc2bytes5 = [0,0x400,0x20,0x420,0,0x400,0x20,0x420,0x2000000,0x2000400,0x2000020,0x2000420,0x2000000,0x2000400,0x2000020,0x2000420], + pc2bytes6 = [0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002,0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002], + pc2bytes7 = [0,0x10000,0x800,0x10800,0x20000000,0x20010000,0x20000800,0x20010800,0x20000,0x30000,0x20800,0x30800,0x20020000,0x20030000,0x20020800,0x20030800], + pc2bytes8 = [0,0x40000,0,0x40000,0x2,0x40002,0x2,0x40002,0x2000000,0x2040000,0x2000000,0x2040000,0x2000002,0x2040002,0x2000002,0x2040002], + pc2bytes9 = [0,0x10000000,0x8,0x10000008,0,0x10000000,0x8,0x10000008,0x400,0x10000400,0x408,0x10000408,0x400,0x10000400,0x408,0x10000408], + pc2bytes10 = [0,0x20,0,0x20,0x100000,0x100020,0x100000,0x100020,0x2000,0x2020,0x2000,0x2020,0x102000,0x102020,0x102000,0x102020], + pc2bytes11 = [0,0x1000000,0x200,0x1000200,0x200000,0x1200000,0x200200,0x1200200,0x4000000,0x5000000,0x4000200,0x5000200,0x4200000,0x5200000,0x4200200,0x5200200], + pc2bytes12 = [0,0x1000,0x8000000,0x8001000,0x80000,0x81000,0x8080000,0x8081000,0x10,0x1010,0x8000010,0x8001010,0x80010,0x81010,0x8080010,0x8081010], + pc2bytes13 = [0,0x4,0x100,0x104,0,0x4,0x100,0x104,0x1,0x5,0x101,0x105,0x1,0x5,0x101,0x105]; + + // how many iterations (1 for des, 3 for triple des) + // changed by Paul 16/6/2007 to use Triple DES for 9+ byte keys + var iterations = key.length() > 8 ? 3 : 1; + + // stores the return keys + var keys = []; + + // now define the left shifts which need to be done + var shifts = [0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0]; + + var n = 0, tmp; + for(var j = 0; j < iterations; j++) { + var left = key.getInt32(); + var right = key.getInt32(); + + tmp = ((left >>> 4) ^ right) & 0x0f0f0f0f; + right ^= tmp; + left ^= (tmp << 4); + + tmp = ((right >>> -16) ^ left) & 0x0000ffff; + left ^= tmp; + right ^= (tmp << -16); + + tmp = ((left >>> 2) ^ right) & 0x33333333; + right ^= tmp; + left ^= (tmp << 2); + + tmp = ((right >>> -16) ^ left) & 0x0000ffff; + left ^= tmp; + right ^= (tmp << -16); + + tmp = ((left >>> 1) ^ right) & 0x55555555; + right ^= tmp; + left ^= (tmp << 1); + + tmp = ((right >>> 8) ^ left) & 0x00ff00ff; + left ^= tmp; + right ^= (tmp << 8); + + tmp = ((left >>> 1) ^ right) & 0x55555555; + right ^= tmp; + left ^= (tmp << 1); + + // right needs to be shifted and OR'd with last four bits of left + tmp = (left << 8) | ((right >>> 20) & 0x000000f0); + + // left needs to be put upside down + left = ((right << 24) | ((right << 8) & 0xff0000) | + ((right >>> 8) & 0xff00) | ((right >>> 24) & 0xf0)); + right = tmp; + + // now go through and perform these shifts on the left and right keys + for(var i = 0; i < shifts.length; ++i) { + //shift the keys either one or two bits to the left + if(shifts[i]) { + left = (left << 2) | (left >>> 26); + right = (right << 2) | (right >>> 26); + } else { + left = (left << 1) | (left >>> 27); + right = (right << 1) | (right >>> 27); + } + left &= -0xf; + right &= -0xf; + + // now apply PC-2, in such a way that E is easier when encrypting or + // decrypting this conversion will look like PC-2 except only the last 6 + // bits of each byte are used rather than 48 consecutive bits and the + // order of lines will be according to how the S selection functions will + // be applied: S2, S4, S6, S8, S1, S3, S5, S7 + var lefttmp = ( + pc2bytes0[left >>> 28] | pc2bytes1[(left >>> 24) & 0xf] | + pc2bytes2[(left >>> 20) & 0xf] | pc2bytes3[(left >>> 16) & 0xf] | + pc2bytes4[(left >>> 12) & 0xf] | pc2bytes5[(left >>> 8) & 0xf] | + pc2bytes6[(left >>> 4) & 0xf]); + var righttmp = ( + pc2bytes7[right >>> 28] | pc2bytes8[(right >>> 24) & 0xf] | + pc2bytes9[(right >>> 20) & 0xf] | pc2bytes10[(right >>> 16) & 0xf] | + pc2bytes11[(right >>> 12) & 0xf] | pc2bytes12[(right >>> 8) & 0xf] | + pc2bytes13[(right >>> 4) & 0xf]); + tmp = ((righttmp >>> 16) ^ lefttmp) & 0x0000ffff; + keys[n++] = lefttmp ^ tmp; + keys[n++] = righttmp ^ (tmp << 16); + } + } + + return keys; +} + +/** + * Updates a single block (1 byte) using DES. The update will either + * encrypt or decrypt the block. + * + * @param keys the expanded keys. + * @param input the input block (an array of 32-bit words). + * @param output the updated output block. + * @param decrypt true to decrypt the block, false to encrypt it. + */ +function _updateBlock(keys, input, output, decrypt) { + // set up loops for single or triple DES + var iterations = keys.length === 32 ? 3 : 9; + var looping; + if(iterations === 3) { + looping = decrypt ? [30, -2, -2] : [0, 32, 2]; + } else { + looping = (decrypt ? + [94, 62, -2, 32, 64, 2, 30, -2, -2] : + [0, 32, 2, 62, 30, -2, 64, 96, 2]); + } + + var tmp; + + var left = input[0]; + var right = input[1]; + + // first each 64 bit chunk of the message must be permuted according to IP + tmp = ((left >>> 4) ^ right) & 0x0f0f0f0f; + right ^= tmp; + left ^= (tmp << 4); + + tmp = ((left >>> 16) ^ right) & 0x0000ffff; + right ^= tmp; + left ^= (tmp << 16); + + tmp = ((right >>> 2) ^ left) & 0x33333333; + left ^= tmp; + right ^= (tmp << 2); + + tmp = ((right >>> 8) ^ left) & 0x00ff00ff; + left ^= tmp; + right ^= (tmp << 8); + + tmp = ((left >>> 1) ^ right) & 0x55555555; + right ^= tmp; + left ^= (tmp << 1); + + // rotate left 1 bit + left = ((left << 1) | (left >>> 31)); + right = ((right << 1) | (right >>> 31)); + + for(var j = 0; j < iterations; j += 3) { + var endloop = looping[j + 1]; + var loopinc = looping[j + 2]; + + // now go through and perform the encryption or decryption + for(var i = looping[j]; i != endloop; i += loopinc) { + var right1 = right ^ keys[i]; + var right2 = ((right >>> 4) | (right << 28)) ^ keys[i + 1]; + + // passing these bytes through the S selection functions + tmp = left; + left = right; + right = tmp ^ ( + spfunction2[(right1 >>> 24) & 0x3f] | + spfunction4[(right1 >>> 16) & 0x3f] | + spfunction6[(right1 >>> 8) & 0x3f] | + spfunction8[right1 & 0x3f] | + spfunction1[(right2 >>> 24) & 0x3f] | + spfunction3[(right2 >>> 16) & 0x3f] | + spfunction5[(right2 >>> 8) & 0x3f] | + spfunction7[right2 & 0x3f]); + } + // unreverse left and right + tmp = left; + left = right; + right = tmp; + } + + // rotate right 1 bit + left = ((left >>> 1) | (left << 31)); + right = ((right >>> 1) | (right << 31)); + + // now perform IP-1, which is IP in the opposite direction + tmp = ((left >>> 1) ^ right) & 0x55555555; + right ^= tmp; + left ^= (tmp << 1); + + tmp = ((right >>> 8) ^ left) & 0x00ff00ff; + left ^= tmp; + right ^= (tmp << 8); + + tmp = ((right >>> 2) ^ left) & 0x33333333; + left ^= tmp; + right ^= (tmp << 2); + + tmp = ((left >>> 16) ^ right) & 0x0000ffff; + right ^= tmp; + left ^= (tmp << 16); + + tmp = ((left >>> 4) ^ right) & 0x0f0f0f0f; + right ^= tmp; + left ^= (tmp << 4); + + output[0] = left; + output[1] = right; +} + +/** + * Deprecated. Instead, use: + * + * forge.cipher.createCipher('DES-', key); + * forge.cipher.createDecipher('DES-', key); + * + * Creates a deprecated DES cipher object. This object's mode will default to + * CBC (cipher-block-chaining). + * + * The key may be given as a binary-encoded string of bytes or a byte buffer. + * + * @param options the options to use. + * key the symmetric key to use (64 or 192 bits). + * output the buffer to write to. + * decrypt true for decryption, false for encryption. + * mode the cipher mode to use (default: 'CBC'). + * + * @return the cipher. + */ +function _createCipher(options) { + options = options || {}; + var mode = (options.mode || 'CBC').toUpperCase(); + var algorithm = 'DES-' + mode; + + var cipher; + if(options.decrypt) { + cipher = forge.cipher.createDecipher(algorithm, options.key); + } else { + cipher = forge.cipher.createCipher(algorithm, options.key); + } + + // backwards compatible start API + var start = cipher.start; + cipher.start = function(iv, options) { + // backwards compatibility: support second arg as output buffer + var output = null; + if(options instanceof forge.util.ByteBuffer) { + output = options; + options = {}; + } + options = options || {}; + options.output = output; + options.iv = iv; + start.call(cipher, options); + }; + + return cipher; +} diff --git a/node_modules/node-forge/lib/ed25519.js b/node_modules/node-forge/lib/ed25519.js new file mode 100644 index 0000000..f3e6faa --- /dev/null +++ b/node_modules/node-forge/lib/ed25519.js @@ -0,0 +1,1072 @@ +/** + * JavaScript implementation of Ed25519. + * + * Copyright (c) 2017-2019 Digital Bazaar, Inc. + * + * This implementation is based on the most excellent TweetNaCl which is + * in the public domain. Many thanks to its contributors: + * + * https://github.com/dchest/tweetnacl-js + */ +var forge = require('./forge'); +require('./jsbn'); +require('./random'); +require('./sha512'); +require('./util'); +var asn1Validator = require('./asn1-validator'); +var publicKeyValidator = asn1Validator.publicKeyValidator; +var privateKeyValidator = asn1Validator.privateKeyValidator; + +if(typeof BigInteger === 'undefined') { + var BigInteger = forge.jsbn.BigInteger; +} + +var ByteBuffer = forge.util.ByteBuffer; +var NativeBuffer = typeof Buffer === 'undefined' ? Uint8Array : Buffer; + +/* + * Ed25519 algorithms, see RFC 8032: + * https://tools.ietf.org/html/rfc8032 + */ +forge.pki = forge.pki || {}; +module.exports = forge.pki.ed25519 = forge.ed25519 = forge.ed25519 || {}; +var ed25519 = forge.ed25519; + +ed25519.constants = {}; +ed25519.constants.PUBLIC_KEY_BYTE_LENGTH = 32; +ed25519.constants.PRIVATE_KEY_BYTE_LENGTH = 64; +ed25519.constants.SEED_BYTE_LENGTH = 32; +ed25519.constants.SIGN_BYTE_LENGTH = 64; +ed25519.constants.HASH_BYTE_LENGTH = 64; + +ed25519.generateKeyPair = function(options) { + options = options || {}; + var seed = options.seed; + if(seed === undefined) { + // generate seed + seed = forge.random.getBytesSync(ed25519.constants.SEED_BYTE_LENGTH); + } else if(typeof seed === 'string') { + if(seed.length !== ed25519.constants.SEED_BYTE_LENGTH) { + throw new TypeError( + '"seed" must be ' + ed25519.constants.SEED_BYTE_LENGTH + + ' bytes in length.'); + } + } else if(!(seed instanceof Uint8Array)) { + throw new TypeError( + '"seed" must be a node.js Buffer, Uint8Array, or a binary string.'); + } + + seed = messageToNativeBuffer({message: seed, encoding: 'binary'}); + + var pk = new NativeBuffer(ed25519.constants.PUBLIC_KEY_BYTE_LENGTH); + var sk = new NativeBuffer(ed25519.constants.PRIVATE_KEY_BYTE_LENGTH); + for(var i = 0; i < 32; ++i) { + sk[i] = seed[i]; + } + crypto_sign_keypair(pk, sk); + return {publicKey: pk, privateKey: sk}; +}; + +/** + * Converts a private key from a RFC8410 ASN.1 encoding. + * + * @param obj - The asn1 representation of a private key. + * + * @returns {Object} keyInfo - The key information. + * @returns {Buffer|Uint8Array} keyInfo.privateKeyBytes - 32 private key bytes. + */ +ed25519.privateKeyFromAsn1 = function(obj) { + var capture = {}; + var errors = []; + var valid = forge.asn1.validate(obj, privateKeyValidator, capture, errors); + if(!valid) { + var error = new Error('Invalid Key.'); + error.errors = errors; + throw error; + } + var oid = forge.asn1.derToOid(capture.privateKeyOid); + var ed25519Oid = forge.oids.EdDSA25519; + if(oid !== ed25519Oid) { + throw new Error('Invalid OID "' + oid + '"; OID must be "' + + ed25519Oid + '".'); + } + var privateKey = capture.privateKey; + // manually extract the private key bytes from nested octet string, see FIXME: + // https://github.com/digitalbazaar/forge/blob/master/lib/asn1.js#L542 + var privateKeyBytes = messageToNativeBuffer({ + message: forge.asn1.fromDer(privateKey).value, + encoding: 'binary' + }); + // TODO: RFC8410 specifies a format for encoding the public key bytes along + // with the private key bytes. `publicKeyBytes` can be returned in the + // future. https://tools.ietf.org/html/rfc8410#section-10.3 + return {privateKeyBytes: privateKeyBytes}; +}; + +/** + * Converts a public key from a RFC8410 ASN.1 encoding. + * + * @param obj - The asn1 representation of a public key. + * + * @return {Buffer|Uint8Array} - 32 public key bytes. + */ +ed25519.publicKeyFromAsn1 = function(obj) { + // get SubjectPublicKeyInfo + var capture = {}; + var errors = []; + var valid = forge.asn1.validate(obj, publicKeyValidator, capture, errors); + if(!valid) { + var error = new Error('Invalid Key.'); + error.errors = errors; + throw error; + } + var oid = forge.asn1.derToOid(capture.publicKeyOid); + var ed25519Oid = forge.oids.EdDSA25519; + if(oid !== ed25519Oid) { + throw new Error('Invalid OID "' + oid + '"; OID must be "' + + ed25519Oid + '".'); + } + var publicKeyBytes = capture.ed25519PublicKey; + if(publicKeyBytes.length !== ed25519.constants.PUBLIC_KEY_BYTE_LENGTH) { + throw new Error('Key length is invalid.'); + } + return messageToNativeBuffer({ + message: publicKeyBytes, + encoding: 'binary' + }); +}; + +ed25519.publicKeyFromPrivateKey = function(options) { + options = options || {}; + var privateKey = messageToNativeBuffer({ + message: options.privateKey, encoding: 'binary' + }); + if(privateKey.length !== ed25519.constants.PRIVATE_KEY_BYTE_LENGTH) { + throw new TypeError( + '"options.privateKey" must have a byte length of ' + + ed25519.constants.PRIVATE_KEY_BYTE_LENGTH); + } + + var pk = new NativeBuffer(ed25519.constants.PUBLIC_KEY_BYTE_LENGTH); + for(var i = 0; i < pk.length; ++i) { + pk[i] = privateKey[32 + i]; + } + return pk; +}; + +ed25519.sign = function(options) { + options = options || {}; + var msg = messageToNativeBuffer(options); + var privateKey = messageToNativeBuffer({ + message: options.privateKey, + encoding: 'binary' + }); + if(privateKey.length === ed25519.constants.SEED_BYTE_LENGTH) { + var keyPair = ed25519.generateKeyPair({seed: privateKey}); + privateKey = keyPair.privateKey; + } else if(privateKey.length !== ed25519.constants.PRIVATE_KEY_BYTE_LENGTH) { + throw new TypeError( + '"options.privateKey" must have a byte length of ' + + ed25519.constants.SEED_BYTE_LENGTH + ' or ' + + ed25519.constants.PRIVATE_KEY_BYTE_LENGTH); + } + + var signedMsg = new NativeBuffer( + ed25519.constants.SIGN_BYTE_LENGTH + msg.length); + crypto_sign(signedMsg, msg, msg.length, privateKey); + + var sig = new NativeBuffer(ed25519.constants.SIGN_BYTE_LENGTH); + for(var i = 0; i < sig.length; ++i) { + sig[i] = signedMsg[i]; + } + return sig; +}; + +ed25519.verify = function(options) { + options = options || {}; + var msg = messageToNativeBuffer(options); + if(options.signature === undefined) { + throw new TypeError( + '"options.signature" must be a node.js Buffer, a Uint8Array, a forge ' + + 'ByteBuffer, or a binary string.'); + } + var sig = messageToNativeBuffer({ + message: options.signature, + encoding: 'binary' + }); + if(sig.length !== ed25519.constants.SIGN_BYTE_LENGTH) { + throw new TypeError( + '"options.signature" must have a byte length of ' + + ed25519.constants.SIGN_BYTE_LENGTH); + } + var publicKey = messageToNativeBuffer({ + message: options.publicKey, + encoding: 'binary' + }); + if(publicKey.length !== ed25519.constants.PUBLIC_KEY_BYTE_LENGTH) { + throw new TypeError( + '"options.publicKey" must have a byte length of ' + + ed25519.constants.PUBLIC_KEY_BYTE_LENGTH); + } + + var sm = new NativeBuffer(ed25519.constants.SIGN_BYTE_LENGTH + msg.length); + var m = new NativeBuffer(ed25519.constants.SIGN_BYTE_LENGTH + msg.length); + var i; + for(i = 0; i < ed25519.constants.SIGN_BYTE_LENGTH; ++i) { + sm[i] = sig[i]; + } + for(i = 0; i < msg.length; ++i) { + sm[i + ed25519.constants.SIGN_BYTE_LENGTH] = msg[i]; + } + return (crypto_sign_open(m, sm, sm.length, publicKey) >= 0); +}; + +function messageToNativeBuffer(options) { + var message = options.message; + if(message instanceof Uint8Array || message instanceof NativeBuffer) { + return message; + } + + var encoding = options.encoding; + if(message === undefined) { + if(options.md) { + // TODO: more rigorous validation that `md` is a MessageDigest + message = options.md.digest().getBytes(); + encoding = 'binary'; + } else { + throw new TypeError('"options.message" or "options.md" not specified.'); + } + } + + if(typeof message === 'string' && !encoding) { + throw new TypeError('"options.encoding" must be "binary" or "utf8".'); + } + + if(typeof message === 'string') { + if(typeof Buffer !== 'undefined') { + return Buffer.from(message, encoding); + } + message = new ByteBuffer(message, encoding); + } else if(!(message instanceof ByteBuffer)) { + throw new TypeError( + '"options.message" must be a node.js Buffer, a Uint8Array, a forge ' + + 'ByteBuffer, or a string with "options.encoding" specifying its ' + + 'encoding.'); + } + + // convert to native buffer + var buffer = new NativeBuffer(message.length()); + for(var i = 0; i < buffer.length; ++i) { + buffer[i] = message.at(i); + } + return buffer; +} + +var gf0 = gf(); +var gf1 = gf([1]); +var D = gf([ + 0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, + 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203]); +var D2 = gf([ + 0xf159, 0x26b2, 0x9b94, 0xebd6, 0xb156, 0x8283, 0x149a, 0x00e0, + 0xd130, 0xeef3, 0x80f2, 0x198e, 0xfce7, 0x56df, 0xd9dc, 0x2406]); +var X = gf([ + 0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, + 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169]); +var Y = gf([ + 0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, + 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666]); +var L = new Float64Array([ + 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, + 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10]); +var I = gf([ + 0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, + 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83]); + +// TODO: update forge buffer implementation to use `Buffer` or `Uint8Array`, +// whichever is available, to improve performance +function sha512(msg, msgLen) { + // Note: `out` and `msg` are NativeBuffer + var md = forge.md.sha512.create(); + var buffer = new ByteBuffer(msg); + md.update(buffer.getBytes(msgLen), 'binary'); + var hash = md.digest().getBytes(); + if(typeof Buffer !== 'undefined') { + return Buffer.from(hash, 'binary'); + } + var out = new NativeBuffer(ed25519.constants.HASH_BYTE_LENGTH); + for(var i = 0; i < 64; ++i) { + out[i] = hash.charCodeAt(i); + } + return out; +} + +function crypto_sign_keypair(pk, sk) { + var p = [gf(), gf(), gf(), gf()]; + var i; + + var d = sha512(sk, 32); + d[0] &= 248; + d[31] &= 127; + d[31] |= 64; + + scalarbase(p, d); + pack(pk, p); + + for(i = 0; i < 32; ++i) { + sk[i + 32] = pk[i]; + } + return 0; +} + +// Note: difference from C - smlen returned, not passed as argument. +function crypto_sign(sm, m, n, sk) { + var i, j, x = new Float64Array(64); + var p = [gf(), gf(), gf(), gf()]; + + var d = sha512(sk, 32); + d[0] &= 248; + d[31] &= 127; + d[31] |= 64; + + var smlen = n + 64; + for(i = 0; i < n; ++i) { + sm[64 + i] = m[i]; + } + for(i = 0; i < 32; ++i) { + sm[32 + i] = d[32 + i]; + } + + var r = sha512(sm.subarray(32), n + 32); + reduce(r); + scalarbase(p, r); + pack(sm, p); + + for(i = 32; i < 64; ++i) { + sm[i] = sk[i]; + } + var h = sha512(sm, n + 64); + reduce(h); + + for(i = 32; i < 64; ++i) { + x[i] = 0; + } + for(i = 0; i < 32; ++i) { + x[i] = r[i]; + } + for(i = 0; i < 32; ++i) { + for(j = 0; j < 32; j++) { + x[i + j] += h[i] * d[j]; + } + } + + modL(sm.subarray(32), x); + return smlen; +} + +function crypto_sign_open(m, sm, n, pk) { + var i, mlen; + var t = new NativeBuffer(32); + var p = [gf(), gf(), gf(), gf()], + q = [gf(), gf(), gf(), gf()]; + + mlen = -1; + if(n < 64) { + return -1; + } + + if(unpackneg(q, pk)) { + return -1; + } + + for(i = 0; i < n; ++i) { + m[i] = sm[i]; + } + for(i = 0; i < 32; ++i) { + m[i + 32] = pk[i]; + } + var h = sha512(m, n); + reduce(h); + scalarmult(p, q, h); + + scalarbase(q, sm.subarray(32)); + add(p, q); + pack(t, p); + + n -= 64; + if(crypto_verify_32(sm, 0, t, 0)) { + for(i = 0; i < n; ++i) { + m[i] = 0; + } + return -1; + } + + for(i = 0; i < n; ++i) { + m[i] = sm[i + 64]; + } + mlen = n; + return mlen; +} + +function modL(r, x) { + var carry, i, j, k; + for(i = 63; i >= 32; --i) { + carry = 0; + for(j = i - 32, k = i - 12; j < k; ++j) { + x[j] += carry - 16 * x[i] * L[j - (i - 32)]; + carry = (x[j] + 128) >> 8; + x[j] -= carry * 256; + } + x[j] += carry; + x[i] = 0; + } + carry = 0; + for(j = 0; j < 32; ++j) { + x[j] += carry - (x[31] >> 4) * L[j]; + carry = x[j] >> 8; + x[j] &= 255; + } + for(j = 0; j < 32; ++j) { + x[j] -= carry * L[j]; + } + for(i = 0; i < 32; ++i) { + x[i + 1] += x[i] >> 8; + r[i] = x[i] & 255; + } +} + +function reduce(r) { + var x = new Float64Array(64); + for(var i = 0; i < 64; ++i) { + x[i] = r[i]; + r[i] = 0; + } + modL(r, x); +} + +function add(p, q) { + var a = gf(), b = gf(), c = gf(), + d = gf(), e = gf(), f = gf(), + g = gf(), h = gf(), t = gf(); + + Z(a, p[1], p[0]); + Z(t, q[1], q[0]); + M(a, a, t); + A(b, p[0], p[1]); + A(t, q[0], q[1]); + M(b, b, t); + M(c, p[3], q[3]); + M(c, c, D2); + M(d, p[2], q[2]); + A(d, d, d); + Z(e, b, a); + Z(f, d, c); + A(g, d, c); + A(h, b, a); + + M(p[0], e, f); + M(p[1], h, g); + M(p[2], g, f); + M(p[3], e, h); +} + +function cswap(p, q, b) { + for(var i = 0; i < 4; ++i) { + sel25519(p[i], q[i], b); + } +} + +function pack(r, p) { + var tx = gf(), ty = gf(), zi = gf(); + inv25519(zi, p[2]); + M(tx, p[0], zi); + M(ty, p[1], zi); + pack25519(r, ty); + r[31] ^= par25519(tx) << 7; +} + +function pack25519(o, n) { + var i, j, b; + var m = gf(), t = gf(); + for(i = 0; i < 16; ++i) { + t[i] = n[i]; + } + car25519(t); + car25519(t); + car25519(t); + for(j = 0; j < 2; ++j) { + m[0] = t[0] - 0xffed; + for(i = 1; i < 15; ++i) { + m[i] = t[i] - 0xffff - ((m[i - 1] >> 16) & 1); + m[i-1] &= 0xffff; + } + m[15] = t[15] - 0x7fff - ((m[14] >> 16) & 1); + b = (m[15] >> 16) & 1; + m[14] &= 0xffff; + sel25519(t, m, 1 - b); + } + for (i = 0; i < 16; i++) { + o[2 * i] = t[i] & 0xff; + o[2 * i + 1] = t[i] >> 8; + } +} + +function unpackneg(r, p) { + var t = gf(), chk = gf(), num = gf(), + den = gf(), den2 = gf(), den4 = gf(), + den6 = gf(); + + set25519(r[2], gf1); + unpack25519(r[1], p); + S(num, r[1]); + M(den, num, D); + Z(num, num, r[2]); + A(den, r[2], den); + + S(den2, den); + S(den4, den2); + M(den6, den4, den2); + M(t, den6, num); + M(t, t, den); + + pow2523(t, t); + M(t, t, num); + M(t, t, den); + M(t, t, den); + M(r[0], t, den); + + S(chk, r[0]); + M(chk, chk, den); + if(neq25519(chk, num)) { + M(r[0], r[0], I); + } + + S(chk, r[0]); + M(chk, chk, den); + if(neq25519(chk, num)) { + return -1; + } + + if(par25519(r[0]) === (p[31] >> 7)) { + Z(r[0], gf0, r[0]); + } + + M(r[3], r[0], r[1]); + return 0; +} + +function unpack25519(o, n) { + var i; + for(i = 0; i < 16; ++i) { + o[i] = n[2 * i] + (n[2 * i + 1] << 8); + } + o[15] &= 0x7fff; +} + +function pow2523(o, i) { + var c = gf(); + var a; + for(a = 0; a < 16; ++a) { + c[a] = i[a]; + } + for(a = 250; a >= 0; --a) { + S(c, c); + if(a !== 1) { + M(c, c, i); + } + } + for(a = 0; a < 16; ++a) { + o[a] = c[a]; + } +} + +function neq25519(a, b) { + var c = new NativeBuffer(32); + var d = new NativeBuffer(32); + pack25519(c, a); + pack25519(d, b); + return crypto_verify_32(c, 0, d, 0); +} + +function crypto_verify_32(x, xi, y, yi) { + return vn(x, xi, y, yi, 32); +} + +function vn(x, xi, y, yi, n) { + var i, d = 0; + for(i = 0; i < n; ++i) { + d |= x[xi + i] ^ y[yi + i]; + } + return (1 & ((d - 1) >>> 8)) - 1; +} + +function par25519(a) { + var d = new NativeBuffer(32); + pack25519(d, a); + return d[0] & 1; +} + +function scalarmult(p, q, s) { + var b, i; + set25519(p[0], gf0); + set25519(p[1], gf1); + set25519(p[2], gf1); + set25519(p[3], gf0); + for(i = 255; i >= 0; --i) { + b = (s[(i / 8)|0] >> (i & 7)) & 1; + cswap(p, q, b); + add(q, p); + add(p, p); + cswap(p, q, b); + } +} + +function scalarbase(p, s) { + var q = [gf(), gf(), gf(), gf()]; + set25519(q[0], X); + set25519(q[1], Y); + set25519(q[2], gf1); + M(q[3], X, Y); + scalarmult(p, q, s); +} + +function set25519(r, a) { + var i; + for(i = 0; i < 16; i++) { + r[i] = a[i] | 0; + } +} + +function inv25519(o, i) { + var c = gf(); + var a; + for(a = 0; a < 16; ++a) { + c[a] = i[a]; + } + for(a = 253; a >= 0; --a) { + S(c, c); + if(a !== 2 && a !== 4) { + M(c, c, i); + } + } + for(a = 0; a < 16; ++a) { + o[a] = c[a]; + } +} + +function car25519(o) { + var i, v, c = 1; + for(i = 0; i < 16; ++i) { + v = o[i] + c + 65535; + c = Math.floor(v / 65536); + o[i] = v - c * 65536; + } + o[0] += c - 1 + 37 * (c - 1); +} + +function sel25519(p, q, b) { + var t, c = ~(b - 1); + for(var i = 0; i < 16; ++i) { + t = c & (p[i] ^ q[i]); + p[i] ^= t; + q[i] ^= t; + } +} + +function gf(init) { + var i, r = new Float64Array(16); + if(init) { + for(i = 0; i < init.length; ++i) { + r[i] = init[i]; + } + } + return r; +} + +function A(o, a, b) { + for(var i = 0; i < 16; ++i) { + o[i] = a[i] + b[i]; + } +} + +function Z(o, a, b) { + for(var i = 0; i < 16; ++i) { + o[i] = a[i] - b[i]; + } +} + +function S(o, a) { + M(o, a, a); +} + +function M(o, a, b) { + var v, c, + t0 = 0, t1 = 0, t2 = 0, t3 = 0, t4 = 0, t5 = 0, t6 = 0, t7 = 0, + t8 = 0, t9 = 0, t10 = 0, t11 = 0, t12 = 0, t13 = 0, t14 = 0, t15 = 0, + t16 = 0, t17 = 0, t18 = 0, t19 = 0, t20 = 0, t21 = 0, t22 = 0, t23 = 0, + t24 = 0, t25 = 0, t26 = 0, t27 = 0, t28 = 0, t29 = 0, t30 = 0, + b0 = b[0], + b1 = b[1], + b2 = b[2], + b3 = b[3], + b4 = b[4], + b5 = b[5], + b6 = b[6], + b7 = b[7], + b8 = b[8], + b9 = b[9], + b10 = b[10], + b11 = b[11], + b12 = b[12], + b13 = b[13], + b14 = b[14], + b15 = b[15]; + + v = a[0]; + t0 += v * b0; + t1 += v * b1; + t2 += v * b2; + t3 += v * b3; + t4 += v * b4; + t5 += v * b5; + t6 += v * b6; + t7 += v * b7; + t8 += v * b8; + t9 += v * b9; + t10 += v * b10; + t11 += v * b11; + t12 += v * b12; + t13 += v * b13; + t14 += v * b14; + t15 += v * b15; + v = a[1]; + t1 += v * b0; + t2 += v * b1; + t3 += v * b2; + t4 += v * b3; + t5 += v * b4; + t6 += v * b5; + t7 += v * b6; + t8 += v * b7; + t9 += v * b8; + t10 += v * b9; + t11 += v * b10; + t12 += v * b11; + t13 += v * b12; + t14 += v * b13; + t15 += v * b14; + t16 += v * b15; + v = a[2]; + t2 += v * b0; + t3 += v * b1; + t4 += v * b2; + t5 += v * b3; + t6 += v * b4; + t7 += v * b5; + t8 += v * b6; + t9 += v * b7; + t10 += v * b8; + t11 += v * b9; + t12 += v * b10; + t13 += v * b11; + t14 += v * b12; + t15 += v * b13; + t16 += v * b14; + t17 += v * b15; + v = a[3]; + t3 += v * b0; + t4 += v * b1; + t5 += v * b2; + t6 += v * b3; + t7 += v * b4; + t8 += v * b5; + t9 += v * b6; + t10 += v * b7; + t11 += v * b8; + t12 += v * b9; + t13 += v * b10; + t14 += v * b11; + t15 += v * b12; + t16 += v * b13; + t17 += v * b14; + t18 += v * b15; + v = a[4]; + t4 += v * b0; + t5 += v * b1; + t6 += v * b2; + t7 += v * b3; + t8 += v * b4; + t9 += v * b5; + t10 += v * b6; + t11 += v * b7; + t12 += v * b8; + t13 += v * b9; + t14 += v * b10; + t15 += v * b11; + t16 += v * b12; + t17 += v * b13; + t18 += v * b14; + t19 += v * b15; + v = a[5]; + t5 += v * b0; + t6 += v * b1; + t7 += v * b2; + t8 += v * b3; + t9 += v * b4; + t10 += v * b5; + t11 += v * b6; + t12 += v * b7; + t13 += v * b8; + t14 += v * b9; + t15 += v * b10; + t16 += v * b11; + t17 += v * b12; + t18 += v * b13; + t19 += v * b14; + t20 += v * b15; + v = a[6]; + t6 += v * b0; + t7 += v * b1; + t8 += v * b2; + t9 += v * b3; + t10 += v * b4; + t11 += v * b5; + t12 += v * b6; + t13 += v * b7; + t14 += v * b8; + t15 += v * b9; + t16 += v * b10; + t17 += v * b11; + t18 += v * b12; + t19 += v * b13; + t20 += v * b14; + t21 += v * b15; + v = a[7]; + t7 += v * b0; + t8 += v * b1; + t9 += v * b2; + t10 += v * b3; + t11 += v * b4; + t12 += v * b5; + t13 += v * b6; + t14 += v * b7; + t15 += v * b8; + t16 += v * b9; + t17 += v * b10; + t18 += v * b11; + t19 += v * b12; + t20 += v * b13; + t21 += v * b14; + t22 += v * b15; + v = a[8]; + t8 += v * b0; + t9 += v * b1; + t10 += v * b2; + t11 += v * b3; + t12 += v * b4; + t13 += v * b5; + t14 += v * b6; + t15 += v * b7; + t16 += v * b8; + t17 += v * b9; + t18 += v * b10; + t19 += v * b11; + t20 += v * b12; + t21 += v * b13; + t22 += v * b14; + t23 += v * b15; + v = a[9]; + t9 += v * b0; + t10 += v * b1; + t11 += v * b2; + t12 += v * b3; + t13 += v * b4; + t14 += v * b5; + t15 += v * b6; + t16 += v * b7; + t17 += v * b8; + t18 += v * b9; + t19 += v * b10; + t20 += v * b11; + t21 += v * b12; + t22 += v * b13; + t23 += v * b14; + t24 += v * b15; + v = a[10]; + t10 += v * b0; + t11 += v * b1; + t12 += v * b2; + t13 += v * b3; + t14 += v * b4; + t15 += v * b5; + t16 += v * b6; + t17 += v * b7; + t18 += v * b8; + t19 += v * b9; + t20 += v * b10; + t21 += v * b11; + t22 += v * b12; + t23 += v * b13; + t24 += v * b14; + t25 += v * b15; + v = a[11]; + t11 += v * b0; + t12 += v * b1; + t13 += v * b2; + t14 += v * b3; + t15 += v * b4; + t16 += v * b5; + t17 += v * b6; + t18 += v * b7; + t19 += v * b8; + t20 += v * b9; + t21 += v * b10; + t22 += v * b11; + t23 += v * b12; + t24 += v * b13; + t25 += v * b14; + t26 += v * b15; + v = a[12]; + t12 += v * b0; + t13 += v * b1; + t14 += v * b2; + t15 += v * b3; + t16 += v * b4; + t17 += v * b5; + t18 += v * b6; + t19 += v * b7; + t20 += v * b8; + t21 += v * b9; + t22 += v * b10; + t23 += v * b11; + t24 += v * b12; + t25 += v * b13; + t26 += v * b14; + t27 += v * b15; + v = a[13]; + t13 += v * b0; + t14 += v * b1; + t15 += v * b2; + t16 += v * b3; + t17 += v * b4; + t18 += v * b5; + t19 += v * b6; + t20 += v * b7; + t21 += v * b8; + t22 += v * b9; + t23 += v * b10; + t24 += v * b11; + t25 += v * b12; + t26 += v * b13; + t27 += v * b14; + t28 += v * b15; + v = a[14]; + t14 += v * b0; + t15 += v * b1; + t16 += v * b2; + t17 += v * b3; + t18 += v * b4; + t19 += v * b5; + t20 += v * b6; + t21 += v * b7; + t22 += v * b8; + t23 += v * b9; + t24 += v * b10; + t25 += v * b11; + t26 += v * b12; + t27 += v * b13; + t28 += v * b14; + t29 += v * b15; + v = a[15]; + t15 += v * b0; + t16 += v * b1; + t17 += v * b2; + t18 += v * b3; + t19 += v * b4; + t20 += v * b5; + t21 += v * b6; + t22 += v * b7; + t23 += v * b8; + t24 += v * b9; + t25 += v * b10; + t26 += v * b11; + t27 += v * b12; + t28 += v * b13; + t29 += v * b14; + t30 += v * b15; + + t0 += 38 * t16; + t1 += 38 * t17; + t2 += 38 * t18; + t3 += 38 * t19; + t4 += 38 * t20; + t5 += 38 * t21; + t6 += 38 * t22; + t7 += 38 * t23; + t8 += 38 * t24; + t9 += 38 * t25; + t10 += 38 * t26; + t11 += 38 * t27; + t12 += 38 * t28; + t13 += 38 * t29; + t14 += 38 * t30; + // t15 left as is + + // first car + c = 1; + v = t0 + c + 65535; c = Math.floor(v / 65536); t0 = v - c * 65536; + v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536; + v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536; + v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536; + v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536; + v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536; + v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536; + v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536; + v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536; + v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536; + v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536; + v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536; + v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536; + v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536; + v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536; + v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536; + t0 += c-1 + 37 * (c-1); + + // second car + c = 1; + v = t0 + c + 65535; c = Math.floor(v / 65536); t0 = v - c * 65536; + v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536; + v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536; + v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536; + v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536; + v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536; + v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536; + v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536; + v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536; + v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536; + v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536; + v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536; + v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536; + v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536; + v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536; + v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536; + t0 += c-1 + 37 * (c-1); + + o[ 0] = t0; + o[ 1] = t1; + o[ 2] = t2; + o[ 3] = t3; + o[ 4] = t4; + o[ 5] = t5; + o[ 6] = t6; + o[ 7] = t7; + o[ 8] = t8; + o[ 9] = t9; + o[10] = t10; + o[11] = t11; + o[12] = t12; + o[13] = t13; + o[14] = t14; + o[15] = t15; +} diff --git a/node_modules/node-forge/lib/forge.js b/node_modules/node-forge/lib/forge.js new file mode 100644 index 0000000..2e243a9 --- /dev/null +++ b/node_modules/node-forge/lib/forge.js @@ -0,0 +1,13 @@ +/** + * Node.js module for Forge. + * + * @author Dave Longley + * + * Copyright 2011-2016 Digital Bazaar, Inc. + */ +module.exports = { + // default options + options: { + usePureJavaScript: false + } +}; diff --git a/node_modules/node-forge/lib/form.js b/node_modules/node-forge/lib/form.js new file mode 100644 index 0000000..4d7843a --- /dev/null +++ b/node_modules/node-forge/lib/form.js @@ -0,0 +1,149 @@ +/** + * Functions for manipulating web forms. + * + * @author David I. Lehn + * @author Dave Longley + * @author Mike Johnson + * + * Copyright (c) 2011-2014 Digital Bazaar, Inc. All rights reserved. + */ +var forge = require('./forge'); + +/* Form API */ +var form = module.exports = forge.form = forge.form || {}; + +(function($) { + +/** + * Regex for parsing a single name property (handles array brackets). + */ +var _regex = /([^\[]*?)\[(.*?)\]/g; + +/** + * Parses a single name property into an array with the name and any + * array indices. + * + * @param name the name to parse. + * + * @return the array of the name and its array indices in order. + */ +var _parseName = function(name) { + var rval = []; + + var matches; + while(!!(matches = _regex.exec(name))) { + if(matches[1].length > 0) { + rval.push(matches[1]); + } + if(matches.length >= 2) { + rval.push(matches[2]); + } + } + if(rval.length === 0) { + rval.push(name); + } + + return rval; +}; + +/** + * Adds a field from the given form to the given object. + * + * @param obj the object. + * @param names the field as an array of object property names. + * @param value the value of the field. + * @param dict a dictionary of names to replace. + */ +var _addField = function(obj, names, value, dict) { + // combine array names that fall within square brackets + var tmp = []; + for(var i = 0; i < names.length; ++i) { + // check name for starting square bracket but no ending one + var name = names[i]; + if(name.indexOf('[') !== -1 && name.indexOf(']') === -1 && + i < names.length - 1) { + do { + name += '.' + names[++i]; + } while(i < names.length - 1 && names[i].indexOf(']') === -1); + } + tmp.push(name); + } + names = tmp; + + // split out array indexes + var tmp = []; + $.each(names, function(n, name) { + tmp = tmp.concat(_parseName(name)); + }); + names = tmp; + + // iterate over object property names until value is set + $.each(names, function(n, name) { + // do dictionary name replacement + if(dict && name.length !== 0 && name in dict) { + name = dict[name]; + } + + // blank name indicates appending to an array, set name to + // new last index of array + if(name.length === 0) { + name = obj.length; + } + + // value already exists, append value + if(obj[name]) { + // last name in the field + if(n == names.length - 1) { + // more than one value, so convert into an array + if(!$.isArray(obj[name])) { + obj[name] = [obj[name]]; + } + obj[name].push(value); + } else { + // not last name, go deeper into object + obj = obj[name]; + } + } else if(n == names.length - 1) { + // new value, last name in the field, set value + obj[name] = value; + } else { + // new value, not last name, go deeper + // get next name + var next = names[n + 1]; + + // blank next value indicates array-appending, so create array + if(next.length === 0) { + obj[name] = []; + } else { + // if next name is a number create an array, otherwise a map + var isNum = ((next - 0) == next && next.length > 0); + obj[name] = isNum ? [] : {}; + } + obj = obj[name]; + } + }); +}; + +/** + * Serializes a form to a JSON object. Object properties will be separated + * using the given separator (defaults to '.') and by square brackets. + * + * @param input the jquery form to serialize. + * @param sep the object-property separator (defaults to '.'). + * @param dict a dictionary of names to replace (name=replace). + * + * @return the JSON-serialized form. + */ +form.serialize = function(input, sep, dict) { + var rval = {}; + + // add all fields in the form to the object + sep = sep || '.'; + $.each(input.serializeArray(), function() { + _addField(rval, this.name.split(sep), this.value || '', dict); + }); + + return rval; +}; + +})(jQuery); diff --git a/node_modules/node-forge/lib/hmac.js b/node_modules/node-forge/lib/hmac.js new file mode 100644 index 0000000..b155f24 --- /dev/null +++ b/node_modules/node-forge/lib/hmac.js @@ -0,0 +1,146 @@ +/** + * Hash-based Message Authentication Code implementation. Requires a message + * digest object that can be obtained, for example, from forge.md.sha1 or + * forge.md.md5. + * + * @author Dave Longley + * + * Copyright (c) 2010-2012 Digital Bazaar, Inc. All rights reserved. + */ +var forge = require('./forge'); +require('./md'); +require('./util'); + +/* HMAC API */ +var hmac = module.exports = forge.hmac = forge.hmac || {}; + +/** + * Creates an HMAC object that uses the given message digest object. + * + * @return an HMAC object. + */ +hmac.create = function() { + // the hmac key to use + var _key = null; + + // the message digest to use + var _md = null; + + // the inner padding + var _ipadding = null; + + // the outer padding + var _opadding = null; + + // hmac context + var ctx = {}; + + /** + * Starts or restarts the HMAC with the given key and message digest. + * + * @param md the message digest to use, null to reuse the previous one, + * a string to use builtin 'sha1', 'md5', 'sha256'. + * @param key the key to use as a string, array of bytes, byte buffer, + * or null to reuse the previous key. + */ + ctx.start = function(md, key) { + if(md !== null) { + if(typeof md === 'string') { + // create builtin message digest + md = md.toLowerCase(); + if(md in forge.md.algorithms) { + _md = forge.md.algorithms[md].create(); + } else { + throw new Error('Unknown hash algorithm "' + md + '"'); + } + } else { + // store message digest + _md = md; + } + } + + if(key === null) { + // reuse previous key + key = _key; + } else { + if(typeof key === 'string') { + // convert string into byte buffer + key = forge.util.createBuffer(key); + } else if(forge.util.isArray(key)) { + // convert byte array into byte buffer + var tmp = key; + key = forge.util.createBuffer(); + for(var i = 0; i < tmp.length; ++i) { + key.putByte(tmp[i]); + } + } + + // if key is longer than blocksize, hash it + var keylen = key.length(); + if(keylen > _md.blockLength) { + _md.start(); + _md.update(key.bytes()); + key = _md.digest(); + } + + // mix key into inner and outer padding + // ipadding = [0x36 * blocksize] ^ key + // opadding = [0x5C * blocksize] ^ key + _ipadding = forge.util.createBuffer(); + _opadding = forge.util.createBuffer(); + keylen = key.length(); + for(var i = 0; i < keylen; ++i) { + var tmp = key.at(i); + _ipadding.putByte(0x36 ^ tmp); + _opadding.putByte(0x5C ^ tmp); + } + + // if key is shorter than blocksize, add additional padding + if(keylen < _md.blockLength) { + var tmp = _md.blockLength - keylen; + for(var i = 0; i < tmp; ++i) { + _ipadding.putByte(0x36); + _opadding.putByte(0x5C); + } + } + _key = key; + _ipadding = _ipadding.bytes(); + _opadding = _opadding.bytes(); + } + + // digest is done like so: hash(opadding | hash(ipadding | message)) + + // prepare to do inner hash + // hash(ipadding | message) + _md.start(); + _md.update(_ipadding); + }; + + /** + * Updates the HMAC with the given message bytes. + * + * @param bytes the bytes to update with. + */ + ctx.update = function(bytes) { + _md.update(bytes); + }; + + /** + * Produces the Message Authentication Code (MAC). + * + * @return a byte buffer containing the digest value. + */ + ctx.getMac = function() { + // digest is done like so: hash(opadding | hash(ipadding | message)) + // here we do the outer hashing + var inner = _md.digest().bytes(); + _md.start(); + _md.update(_opadding); + _md.update(inner); + return _md.digest(); + }; + // alias for getMac + ctx.digest = ctx.getMac; + + return ctx; +}; diff --git a/node_modules/node-forge/lib/http.js b/node_modules/node-forge/lib/http.js new file mode 100644 index 0000000..fe52986 --- /dev/null +++ b/node_modules/node-forge/lib/http.js @@ -0,0 +1,1346 @@ +/** + * HTTP client-side implementation that uses forge.net sockets. + * + * @author Dave Longley + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. All rights reserved. + */ +var forge = require('./forge'); +require('./tls'); +require('./util'); + +// define http namespace +var http = module.exports = forge.http = forge.http || {}; + +// logging category +var cat = 'forge.http'; + +// normalizes an http header field name +var _normalize = function(name) { + return name.toLowerCase().replace(/(^.)|(-.)/g, + function(a) {return a.toUpperCase();}); +}; + +/** + * Gets the local storage ID for the given client. + * + * @param client the client to get the local storage ID for. + * + * @return the local storage ID to use. + */ +var _getStorageId = function(client) { + // TODO: include browser in ID to avoid sharing cookies between + // browsers (if this is undesirable) + // navigator.userAgent + return 'forge.http.' + + client.url.protocol.slice(0, -1) + '.' + + client.url.hostname + '.' + + client.url.port; +}; + +/** + * Loads persistent cookies from disk for the given client. + * + * @param client the client. + */ +var _loadCookies = function(client) { + if(client.persistCookies) { + try { + var cookies = forge.util.getItem( + client.socketPool.flashApi, + _getStorageId(client), 'cookies'); + client.cookies = cookies || {}; + } catch(ex) { + // no flash storage available, just silently fail + // TODO: i assume we want this logged somewhere or + // should it actually generate an error + //forge.log.error(cat, ex); + } + } +}; + +/** + * Saves persistent cookies on disk for the given client. + * + * @param client the client. + */ +var _saveCookies = function(client) { + if(client.persistCookies) { + try { + forge.util.setItem( + client.socketPool.flashApi, + _getStorageId(client), 'cookies', client.cookies); + } catch(ex) { + // no flash storage available, just silently fail + // TODO: i assume we want this logged somewhere or + // should it actually generate an error + //forge.log.error(cat, ex); + } + } + + // FIXME: remove me + _loadCookies(client); +}; + +/** + * Clears persistent cookies on disk for the given client. + * + * @param client the client. + */ +var _clearCookies = function(client) { + if(client.persistCookies) { + try { + // only thing stored is 'cookies', so clear whole storage + forge.util.clearItems( + client.socketPool.flashApi, + _getStorageId(client)); + } catch(ex) { + // no flash storage available, just silently fail + // TODO: i assume we want this logged somewhere or + // should it actually generate an error + //forge.log.error(cat, ex); + } + } +}; + +/** + * Connects and sends a request. + * + * @param client the http client. + * @param socket the socket to use. + */ +var _doRequest = function(client, socket) { + if(socket.isConnected()) { + // already connected + socket.options.request.connectTime = +new Date(); + socket.connected({ + type: 'connect', + id: socket.id + }); + } else { + // connect + socket.options.request.connectTime = +new Date(); + socket.connect({ + host: client.url.hostname, + port: client.url.port, + policyPort: client.policyPort, + policyUrl: client.policyUrl + }); + } +}; + +/** + * Handles the next request or marks a socket as idle. + * + * @param client the http client. + * @param socket the socket. + */ +var _handleNextRequest = function(client, socket) { + // clear buffer + socket.buffer.clear(); + + // get pending request + var pending = null; + while(pending === null && client.requests.length > 0) { + pending = client.requests.shift(); + if(pending.request.aborted) { + pending = null; + } + } + + // mark socket idle if no pending requests + if(pending === null) { + if(socket.options !== null) { + socket.options = null; + } + client.idle.push(socket); + } else { + // handle pending request, allow 1 retry + socket.retries = 1; + socket.options = pending; + _doRequest(client, socket); + } +}; + +/** + * Sets up a socket for use with an http client. + * + * @param client the parent http client. + * @param socket the socket to set up. + * @param tlsOptions if the socket must use TLS, the TLS options. + */ +var _initSocket = function(client, socket, tlsOptions) { + // no socket options yet + socket.options = null; + + // set up handlers + socket.connected = function(e) { + // socket primed by caching TLS session, handle next request + if(socket.options === null) { + _handleNextRequest(client, socket); + } else { + // socket in use + var request = socket.options.request; + request.connectTime = +new Date() - request.connectTime; + e.socket = socket; + socket.options.connected(e); + if(request.aborted) { + socket.close(); + } else { + var out = request.toString(); + if(request.body) { + out += request.body; + } + request.time = +new Date(); + socket.send(out); + request.time = +new Date() - request.time; + socket.options.response.time = +new Date(); + socket.sending = true; + } + } + }; + socket.closed = function(e) { + if(socket.sending) { + socket.sending = false; + if(socket.retries > 0) { + --socket.retries; + _doRequest(client, socket); + } else { + // error, closed during send + socket.error({ + id: socket.id, + type: 'ioError', + message: 'Connection closed during send. Broken pipe.', + bytesAvailable: 0 + }); + } + } else { + // handle unspecified content-length transfer + var response = socket.options.response; + if(response.readBodyUntilClose) { + response.time = +new Date() - response.time; + response.bodyReceived = true; + socket.options.bodyReady({ + request: socket.options.request, + response: response, + socket: socket + }); + } + socket.options.closed(e); + _handleNextRequest(client, socket); + } + }; + socket.data = function(e) { + socket.sending = false; + var request = socket.options.request; + if(request.aborted) { + socket.close(); + } else { + // receive all bytes available + var response = socket.options.response; + var bytes = socket.receive(e.bytesAvailable); + if(bytes !== null) { + // receive header and then body + socket.buffer.putBytes(bytes); + if(!response.headerReceived) { + response.readHeader(socket.buffer); + if(response.headerReceived) { + socket.options.headerReady({ + request: socket.options.request, + response: response, + socket: socket + }); + } + } + if(response.headerReceived && !response.bodyReceived) { + response.readBody(socket.buffer); + } + if(response.bodyReceived) { + socket.options.bodyReady({ + request: socket.options.request, + response: response, + socket: socket + }); + // close connection if requested or by default on http/1.0 + var value = response.getField('Connection') || ''; + if(value.indexOf('close') != -1 || + (response.version === 'HTTP/1.0' && + response.getField('Keep-Alive') === null)) { + socket.close(); + } else { + _handleNextRequest(client, socket); + } + } + } + } + }; + socket.error = function(e) { + // do error callback, include request + socket.options.error({ + type: e.type, + message: e.message, + request: socket.options.request, + response: socket.options.response, + socket: socket + }); + socket.close(); + }; + + // wrap socket for TLS + if(tlsOptions) { + socket = forge.tls.wrapSocket({ + sessionId: null, + sessionCache: {}, + caStore: tlsOptions.caStore, + cipherSuites: tlsOptions.cipherSuites, + socket: socket, + virtualHost: tlsOptions.virtualHost, + verify: tlsOptions.verify, + getCertificate: tlsOptions.getCertificate, + getPrivateKey: tlsOptions.getPrivateKey, + getSignature: tlsOptions.getSignature, + deflate: tlsOptions.deflate || null, + inflate: tlsOptions.inflate || null + }); + + socket.options = null; + socket.buffer = forge.util.createBuffer(); + client.sockets.push(socket); + if(tlsOptions.prime) { + // prime socket by connecting and caching TLS session, will do + // next request from there + socket.connect({ + host: client.url.hostname, + port: client.url.port, + policyPort: client.policyPort, + policyUrl: client.policyUrl + }); + } else { + // do not prime socket, just add as idle + client.idle.push(socket); + } + } else { + // no need to prime non-TLS sockets + socket.buffer = forge.util.createBuffer(); + client.sockets.push(socket); + client.idle.push(socket); + } +}; + +/** + * Checks to see if the given cookie has expired. If the cookie's max-age + * plus its created time is less than the time now, it has expired, unless + * its max-age is set to -1 which indicates it will never expire. + * + * @param cookie the cookie to check. + * + * @return true if it has expired, false if not. + */ +var _hasCookieExpired = function(cookie) { + var rval = false; + + if(cookie.maxAge !== -1) { + var now = _getUtcTime(new Date()); + var expires = cookie.created + cookie.maxAge; + if(expires <= now) { + rval = true; + } + } + + return rval; +}; + +/** + * Adds cookies in the given client to the given request. + * + * @param client the client. + * @param request the request. + */ +var _writeCookies = function(client, request) { + var expired = []; + var url = client.url; + var cookies = client.cookies; + for(var name in cookies) { + // get cookie paths + var paths = cookies[name]; + for(var p in paths) { + var cookie = paths[p]; + if(_hasCookieExpired(cookie)) { + // store for clean up + expired.push(cookie); + } else if(request.path.indexOf(cookie.path) === 0) { + // path or path's ancestor must match cookie.path + request.addCookie(cookie); + } + } + } + + // clean up expired cookies + for(var i = 0; i < expired.length; ++i) { + var cookie = expired[i]; + client.removeCookie(cookie.name, cookie.path); + } +}; + +/** + * Gets cookies from the given response and adds the to the given client. + * + * @param client the client. + * @param response the response. + */ +var _readCookies = function(client, response) { + var cookies = response.getCookies(); + for(var i = 0; i < cookies.length; ++i) { + try { + client.setCookie(cookies[i]); + } catch(ex) { + // ignore failure to add other-domain, etc. cookies + } + } +}; + +/** + * Creates an http client that uses forge.net sockets as a backend and + * forge.tls for security. + * + * @param options: + * url: the url to connect to (scheme://host:port). + * socketPool: the flash socket pool to use. + * policyPort: the flash policy port to use (if other than the + * socket pool default), use 0 for flash default. + * policyUrl: the flash policy file URL to use (if provided will + * be used instead of a policy port). + * connections: number of connections to use to handle requests. + * caCerts: an array of certificates to trust for TLS, certs may + * be PEM-formatted or cert objects produced via forge.pki. + * cipherSuites: an optional array of cipher suites to use, + * see forge.tls.CipherSuites. + * virtualHost: the virtual server name to use in a TLS SNI + * extension, if not provided the url host will be used. + * verify: a custom TLS certificate verify callback to use. + * getCertificate: an optional callback used to get a client-side + * certificate (see forge.tls for details). + * getPrivateKey: an optional callback used to get a client-side + * private key (see forge.tls for details). + * getSignature: an optional callback used to get a client-side + * signature (see forge.tls for details). + * persistCookies: true to use persistent cookies via flash local + * storage, false to only keep cookies in javascript. + * primeTlsSockets: true to immediately connect TLS sockets on + * their creation so that they will cache TLS sessions for reuse. + * + * @return the client. + */ +http.createClient = function(options) { + // create CA store to share with all TLS connections + var caStore = null; + if(options.caCerts) { + caStore = forge.pki.createCaStore(options.caCerts); + } + + // get scheme, host, and port from url + options.url = (options.url || + window.location.protocol + '//' + window.location.host); + var url; + try { + url = new URL(options.url); + } catch(e) { + var error = new Error('Invalid url.'); + error.details = {url: options.url}; + throw error; + } + + // default to 1 connection + options.connections = options.connections || 1; + + // create client + var sp = options.socketPool; + var client = { + // url + url: url, + // socket pool + socketPool: sp, + // the policy port to use + policyPort: options.policyPort, + // policy url to use + policyUrl: options.policyUrl, + // queue of requests to service + requests: [], + // all sockets + sockets: [], + // idle sockets + idle: [], + // whether or not the connections are secure + secure: (url.protocol === 'https:'), + // cookie jar (key'd off of name and then path, there is only 1 domain + // and one setting for secure per client so name+path is unique) + cookies: {}, + // default to flash storage of cookies + persistCookies: (typeof(options.persistCookies) === 'undefined') ? + true : options.persistCookies + }; + + // load cookies from disk + _loadCookies(client); + + /** + * A default certificate verify function that checks a certificate common + * name against the client's URL host. + * + * @param c the TLS connection. + * @param verified true if cert is verified, otherwise alert number. + * @param depth the chain depth. + * @param certs the cert chain. + * + * @return true if verified and the common name matches the host, error + * otherwise. + */ + var _defaultCertificateVerify = function(c, verified, depth, certs) { + if(depth === 0 && verified === true) { + // compare common name to url host + var cn = certs[depth].subject.getField('CN'); + if(cn === null || client.url.hostname !== cn.value) { + verified = { + message: 'Certificate common name does not match url host.' + }; + } + } + return verified; + }; + + // determine if TLS is used + var tlsOptions = null; + if(client.secure) { + tlsOptions = { + caStore: caStore, + cipherSuites: options.cipherSuites || null, + virtualHost: options.virtualHost || url.hostname, + verify: options.verify || _defaultCertificateVerify, + getCertificate: options.getCertificate || null, + getPrivateKey: options.getPrivateKey || null, + getSignature: options.getSignature || null, + prime: options.primeTlsSockets || false + }; + + // if socket pool uses a flash api, then add deflate support to TLS + if(sp.flashApi !== null) { + tlsOptions.deflate = function(bytes) { + // strip 2 byte zlib header and 4 byte trailer + return forge.util.deflate(sp.flashApi, bytes, true); + }; + tlsOptions.inflate = function(bytes) { + return forge.util.inflate(sp.flashApi, bytes, true); + }; + } + } + + // create and initialize sockets + for(var i = 0; i < options.connections; ++i) { + _initSocket(client, sp.createSocket(), tlsOptions); + } + + /** + * Sends a request. A method 'abort' will be set on the request that + * can be called to attempt to abort the request. + * + * @param options: + * request: the request to send. + * connected: a callback for when the connection is open. + * closed: a callback for when the connection is closed. + * headerReady: a callback for when the response header arrives. + * bodyReady: a callback for when the response body arrives. + * error: a callback for if an error occurs. + */ + client.send = function(options) { + // add host header if not set + if(options.request.getField('Host') === null) { + options.request.setField('Host', client.url.origin); + } + + // set default dummy handlers + var opts = {}; + opts.request = options.request; + opts.connected = options.connected || function() {}; + opts.closed = options.close || function() {}; + opts.headerReady = function(e) { + // read cookies + _readCookies(client, e.response); + if(options.headerReady) { + options.headerReady(e); + } + }; + opts.bodyReady = options.bodyReady || function() {}; + opts.error = options.error || function() {}; + + // create response + opts.response = http.createResponse(); + opts.response.time = 0; + opts.response.flashApi = client.socketPool.flashApi; + opts.request.flashApi = client.socketPool.flashApi; + + // create abort function + opts.request.abort = function() { + // set aborted, clear handlers + opts.request.aborted = true; + opts.connected = function() {}; + opts.closed = function() {}; + opts.headerReady = function() {}; + opts.bodyReady = function() {}; + opts.error = function() {}; + }; + + // add cookies to request + _writeCookies(client, opts.request); + + // queue request options if there are no idle sockets + if(client.idle.length === 0) { + client.requests.push(opts); + } else { + // use an idle socket, prefer an idle *connected* socket first + var socket = null; + var len = client.idle.length; + for(var i = 0; socket === null && i < len; ++i) { + socket = client.idle[i]; + if(socket.isConnected()) { + client.idle.splice(i, 1); + } else { + socket = null; + } + } + // no connected socket available, get unconnected socket + if(socket === null) { + socket = client.idle.pop(); + } + socket.options = opts; + _doRequest(client, socket); + } + }; + + /** + * Destroys this client. + */ + client.destroy = function() { + // clear pending requests, close and destroy sockets + client.requests = []; + for(var i = 0; i < client.sockets.length; ++i) { + client.sockets[i].close(); + client.sockets[i].destroy(); + } + client.socketPool = null; + client.sockets = []; + client.idle = []; + }; + + /** + * Sets a cookie for use with all connections made by this client. Any + * cookie with the same name will be replaced. If the cookie's value + * is undefined, null, or the blank string, the cookie will be removed. + * + * If the cookie's domain doesn't match this client's url host or the + * cookie's secure flag doesn't match this client's url scheme, then + * setting the cookie will fail with an exception. + * + * @param cookie the cookie with parameters: + * name: the name of the cookie. + * value: the value of the cookie. + * comment: an optional comment string. + * maxAge: the age of the cookie in seconds relative to created time. + * secure: true if the cookie must be sent over a secure protocol. + * httpOnly: true to restrict access to the cookie from javascript + * (inaffective since the cookies are stored in javascript). + * path: the path for the cookie. + * domain: optional domain the cookie belongs to (must start with dot). + * version: optional version of the cookie. + * created: creation time, in UTC seconds, of the cookie. + */ + client.setCookie = function(cookie) { + var rval; + if(typeof(cookie.name) !== 'undefined') { + if(cookie.value === null || typeof(cookie.value) === 'undefined' || + cookie.value === '') { + // remove cookie + rval = client.removeCookie(cookie.name, cookie.path); + } else { + // set cookie defaults + cookie.comment = cookie.comment || ''; + cookie.maxAge = cookie.maxAge || 0; + cookie.secure = (typeof(cookie.secure) === 'undefined') ? + true : cookie.secure; + cookie.httpOnly = cookie.httpOnly || true; + cookie.path = cookie.path || '/'; + cookie.domain = cookie.domain || null; + cookie.version = cookie.version || null; + cookie.created = _getUtcTime(new Date()); + + // do secure check + if(cookie.secure !== client.secure) { + var error = new Error('Http client url scheme is incompatible ' + + 'with cookie secure flag.'); + error.url = client.url; + error.cookie = cookie; + throw error; + } + // make sure url host is within cookie.domain + if(!http.withinCookieDomain(client.url, cookie)) { + var error = new Error('Http client url scheme is incompatible ' + + 'with cookie secure flag.'); + error.url = client.url; + error.cookie = cookie; + throw error; + } + + // add new cookie + if(!(cookie.name in client.cookies)) { + client.cookies[cookie.name] = {}; + } + client.cookies[cookie.name][cookie.path] = cookie; + rval = true; + + // save cookies + _saveCookies(client); + } + } + + return rval; + }; + + /** + * Gets a cookie by its name. + * + * @param name the name of the cookie to retrieve. + * @param path an optional path for the cookie (if there are multiple + * cookies with the same name but different paths). + * + * @return the cookie or null if not found. + */ + client.getCookie = function(name, path) { + var rval = null; + if(name in client.cookies) { + var paths = client.cookies[name]; + + // get path-specific cookie + if(path) { + if(path in paths) { + rval = paths[path]; + } + } else { + // get first cookie + for(var p in paths) { + rval = paths[p]; + break; + } + } + } + return rval; + }; + + /** + * Removes a cookie. + * + * @param name the name of the cookie to remove. + * @param path an optional path for the cookie (if there are multiple + * cookies with the same name but different paths). + * + * @return true if a cookie was removed, false if not. + */ + client.removeCookie = function(name, path) { + var rval = false; + if(name in client.cookies) { + // delete the specific path + if(path) { + var paths = client.cookies[name]; + if(path in paths) { + rval = true; + delete client.cookies[name][path]; + // clean up entry if empty + var empty = true; + for(var i in client.cookies[name]) { + empty = false; + break; + } + if(empty) { + delete client.cookies[name]; + } + } + } else { + // delete all cookies with the given name + rval = true; + delete client.cookies[name]; + } + } + if(rval) { + // save cookies + _saveCookies(client); + } + return rval; + }; + + /** + * Clears all cookies stored in this client. + */ + client.clearCookies = function() { + client.cookies = {}; + _clearCookies(client); + }; + + if(forge.log) { + forge.log.debug('forge.http', 'created client', options); + } + + return client; +}; + +/** + * Trims the whitespace off of the beginning and end of a string. + * + * @param str the string to trim. + * + * @return the trimmed string. + */ +var _trimString = function(str) { + return str.replace(/^\s*/, '').replace(/\s*$/, ''); +}; + +/** + * Creates an http header object. + * + * @return the http header object. + */ +var _createHeader = function() { + var header = { + fields: {}, + setField: function(name, value) { + // normalize field name, trim value + header.fields[_normalize(name)] = [_trimString('' + value)]; + }, + appendField: function(name, value) { + name = _normalize(name); + if(!(name in header.fields)) { + header.fields[name] = []; + } + header.fields[name].push(_trimString('' + value)); + }, + getField: function(name, index) { + var rval = null; + name = _normalize(name); + if(name in header.fields) { + index = index || 0; + rval = header.fields[name][index]; + } + return rval; + } + }; + return header; +}; + +/** + * Gets the time in utc seconds given a date. + * + * @param d the date to use. + * + * @return the time in utc seconds. + */ +var _getUtcTime = function(d) { + var utc = +d + d.getTimezoneOffset() * 60000; + return Math.floor(+new Date() / 1000); +}; + +/** + * Creates an http request. + * + * @param options: + * version: the version. + * method: the method. + * path: the path. + * body: the body. + * headers: custom header fields to add, + * eg: [{'Content-Length': 0}]. + * + * @return the http request. + */ +http.createRequest = function(options) { + options = options || {}; + var request = _createHeader(); + request.version = options.version || 'HTTP/1.1'; + request.method = options.method || null; + request.path = options.path || null; + request.body = options.body || null; + request.bodyDeflated = false; + request.flashApi = null; + + // add custom headers + var headers = options.headers || []; + if(!forge.util.isArray(headers)) { + headers = [headers]; + } + for(var i = 0; i < headers.length; ++i) { + for(var name in headers[i]) { + request.appendField(name, headers[i][name]); + } + } + + /** + * Adds a cookie to the request 'Cookie' header. + * + * @param cookie a cookie to add. + */ + request.addCookie = function(cookie) { + var value = ''; + var field = request.getField('Cookie'); + if(field !== null) { + // separate cookies by semi-colons + value = field + '; '; + } + + // get current time in utc seconds + var now = _getUtcTime(new Date()); + + // output cookie name and value + value += cookie.name + '=' + cookie.value; + request.setField('Cookie', value); + }; + + /** + * Converts an http request into a string that can be sent as an + * HTTP request. Does not include any data. + * + * @return the string representation of the request. + */ + request.toString = function() { + /* Sample request header: + GET /some/path/?query HTTP/1.1 + Host: www.someurl.com + Connection: close + Accept-Encoding: deflate + Accept: image/gif, text/html + User-Agent: Mozilla 4.0 + */ + + // set default headers + if(request.getField('User-Agent') === null) { + request.setField('User-Agent', 'forge.http 1.0'); + } + if(request.getField('Accept') === null) { + request.setField('Accept', '*/*'); + } + if(request.getField('Connection') === null) { + request.setField('Connection', 'keep-alive'); + request.setField('Keep-Alive', '115'); + } + + // add Accept-Encoding if not specified + if(request.flashApi !== null && + request.getField('Accept-Encoding') === null) { + request.setField('Accept-Encoding', 'deflate'); + } + + // if the body isn't null, deflate it if its larger than 100 bytes + if(request.flashApi !== null && request.body !== null && + request.getField('Content-Encoding') === null && + !request.bodyDeflated && request.body.length > 100) { + // use flash to compress data + request.body = forge.util.deflate(request.flashApi, request.body); + request.bodyDeflated = true; + request.setField('Content-Encoding', 'deflate'); + request.setField('Content-Length', request.body.length); + } else if(request.body !== null) { + // set content length for body + request.setField('Content-Length', request.body.length); + } + + // build start line + var rval = + request.method.toUpperCase() + ' ' + request.path + ' ' + + request.version + '\r\n'; + + // add each header + for(var name in request.fields) { + var fields = request.fields[name]; + for(var i = 0; i < fields.length; ++i) { + rval += name + ': ' + fields[i] + '\r\n'; + } + } + // final terminating CRLF + rval += '\r\n'; + + return rval; + }; + + return request; +}; + +/** + * Creates an empty http response header. + * + * @return the empty http response header. + */ +http.createResponse = function() { + // private vars + var _first = true; + var _chunkSize = 0; + var _chunksFinished = false; + + // create response + var response = _createHeader(); + response.version = null; + response.code = 0; + response.message = null; + response.body = null; + response.headerReceived = false; + response.bodyReceived = false; + response.flashApi = null; + + /** + * Reads a line that ends in CRLF from a byte buffer. + * + * @param b the byte buffer. + * + * @return the line or null if none was found. + */ + var _readCrlf = function(b) { + var line = null; + var i = b.data.indexOf('\r\n', b.read); + if(i != -1) { + // read line, skip CRLF + line = b.getBytes(i - b.read); + b.getBytes(2); + } + return line; + }; + + /** + * Parses a header field and appends it to the response. + * + * @param line the header field line. + */ + var _parseHeader = function(line) { + var tmp = line.indexOf(':'); + var name = line.substring(0, tmp++); + response.appendField( + name, (tmp < line.length) ? line.substring(tmp) : ''); + }; + + /** + * Reads an http response header from a buffer of bytes. + * + * @param b the byte buffer to parse the header from. + * + * @return true if the whole header was read, false if not. + */ + response.readHeader = function(b) { + // read header lines (each ends in CRLF) + var line = ''; + while(!response.headerReceived && line !== null) { + line = _readCrlf(b); + if(line !== null) { + // parse first line + if(_first) { + _first = false; + var tmp = line.split(' '); + if(tmp.length >= 3) { + response.version = tmp[0]; + response.code = parseInt(tmp[1], 10); + response.message = tmp.slice(2).join(' '); + } else { + // invalid header + var error = new Error('Invalid http response header.'); + error.details = {'line': line}; + throw error; + } + } else if(line.length === 0) { + // handle final line, end of header + response.headerReceived = true; + } else { + _parseHeader(line); + } + } + } + + return response.headerReceived; + }; + + /** + * Reads some chunked http response entity-body from the given buffer of + * bytes. + * + * @param b the byte buffer to read from. + * + * @return true if the whole body was read, false if not. + */ + var _readChunkedBody = function(b) { + /* Chunked transfer-encoding sends data in a series of chunks, + followed by a set of 0-N http trailers. + The format is as follows: + + chunk-size (in hex) CRLF + chunk data (with "chunk-size" many bytes) CRLF + ... (N many chunks) + chunk-size (of 0 indicating the last chunk) CRLF + N many http trailers followed by CRLF + blank line + CRLF (terminates the trailers) + + If there are no http trailers, then after the chunk-size of 0, + there is still a single CRLF (indicating the blank line + CRLF + that terminates the trailers). In other words, you always terminate + the trailers with blank line + CRLF, regardless of 0-N trailers. */ + + /* From RFC-2616, section 3.6.1, here is the pseudo-code for + implementing chunked transfer-encoding: + + length := 0 + read chunk-size, chunk-extension (if any) and CRLF + while (chunk-size > 0) { + read chunk-data and CRLF + append chunk-data to entity-body + length := length + chunk-size + read chunk-size and CRLF + } + read entity-header + while (entity-header not empty) { + append entity-header to existing header fields + read entity-header + } + Content-Length := length + Remove "chunked" from Transfer-Encoding + */ + + var line = ''; + while(line !== null && b.length() > 0) { + // if in the process of reading a chunk + if(_chunkSize > 0) { + // if there are not enough bytes to read chunk and its + // trailing CRLF, we must wait for more data to be received + if(_chunkSize + 2 > b.length()) { + break; + } + + // read chunk data, skip CRLF + response.body += b.getBytes(_chunkSize); + b.getBytes(2); + _chunkSize = 0; + } else if(!_chunksFinished) { + // more chunks, read next chunk-size line + line = _readCrlf(b); + if(line !== null) { + // parse chunk-size (ignore any chunk extension) + _chunkSize = parseInt(line.split(';', 1)[0], 16); + _chunksFinished = (_chunkSize === 0); + } + } else { + // chunks finished, read next trailer + line = _readCrlf(b); + while(line !== null) { + if(line.length > 0) { + // parse trailer + _parseHeader(line); + // read next trailer + line = _readCrlf(b); + } else { + // body received + response.bodyReceived = true; + line = null; + } + } + } + } + + return response.bodyReceived; + }; + + /** + * Reads an http response body from a buffer of bytes. + * + * @param b the byte buffer to read from. + * + * @return true if the whole body was read, false if not. + */ + response.readBody = function(b) { + var contentLength = response.getField('Content-Length'); + var transferEncoding = response.getField('Transfer-Encoding'); + if(contentLength !== null) { + contentLength = parseInt(contentLength); + } + + // read specified length + if(contentLength !== null && contentLength >= 0) { + response.body = response.body || ''; + response.body += b.getBytes(contentLength); + response.bodyReceived = (response.body.length === contentLength); + } else if(transferEncoding !== null) { + // read chunked encoding + if(transferEncoding.indexOf('chunked') != -1) { + response.body = response.body || ''; + _readChunkedBody(b); + } else { + var error = new Error('Unknown Transfer-Encoding.'); + error.details = {'transferEncoding': transferEncoding}; + throw error; + } + } else if((contentLength !== null && contentLength < 0) || + (contentLength === null && + response.getField('Content-Type') !== null)) { + // read all data in the buffer + response.body = response.body || ''; + response.body += b.getBytes(); + response.readBodyUntilClose = true; + } else { + // no body + response.body = null; + response.bodyReceived = true; + } + + if(response.bodyReceived) { + response.time = +new Date() - response.time; + } + + if(response.flashApi !== null && + response.bodyReceived && response.body !== null && + response.getField('Content-Encoding') === 'deflate') { + // inflate using flash api + response.body = forge.util.inflate( + response.flashApi, response.body); + } + + return response.bodyReceived; + }; + + /** + * Parses an array of cookies from the 'Set-Cookie' field, if present. + * + * @return the array of cookies. + */ + response.getCookies = function() { + var rval = []; + + // get Set-Cookie field + if('Set-Cookie' in response.fields) { + var field = response.fields['Set-Cookie']; + + // get current local time in seconds + var now = +new Date() / 1000; + + // regex for parsing 'name1=value1; name2=value2; name3' + var regex = /\s*([^=]*)=?([^;]*)(;|$)/g; + + // examples: + // Set-Cookie: cookie1_name=cookie1_value; max-age=0; path=/ + // Set-Cookie: c2=v2; expires=Thu, 21-Aug-2008 23:47:25 GMT; path=/ + for(var i = 0; i < field.length; ++i) { + var fv = field[i]; + var m; + regex.lastIndex = 0; + var first = true; + var cookie = {}; + do { + m = regex.exec(fv); + if(m !== null) { + var name = _trimString(m[1]); + var value = _trimString(m[2]); + + // cookie_name=value + if(first) { + cookie.name = name; + cookie.value = value; + first = false; + } else { + // property_name=value + name = name.toLowerCase(); + switch(name) { + case 'expires': + // replace hyphens w/spaces so date will parse + value = value.replace(/-/g, ' '); + var secs = Date.parse(value) / 1000; + cookie.maxAge = Math.max(0, secs - now); + break; + case 'max-age': + cookie.maxAge = parseInt(value, 10); + break; + case 'secure': + cookie.secure = true; + break; + case 'httponly': + cookie.httpOnly = true; + break; + default: + if(name !== '') { + cookie[name] = value; + } + } + } + } + } while(m !== null && m[0] !== ''); + rval.push(cookie); + } + } + + return rval; + }; + + /** + * Converts an http response into a string that can be sent as an + * HTTP response. Does not include any data. + * + * @return the string representation of the response. + */ + response.toString = function() { + /* Sample response header: + HTTP/1.0 200 OK + Host: www.someurl.com + Connection: close + */ + + // build start line + var rval = + response.version + ' ' + response.code + ' ' + response.message + '\r\n'; + + // add each header + for(var name in response.fields) { + var fields = response.fields[name]; + for(var i = 0; i < fields.length; ++i) { + rval += name + ': ' + fields[i] + '\r\n'; + } + } + // final terminating CRLF + rval += '\r\n'; + + return rval; + }; + + return response; +}; + +/** + * Returns true if the given url is within the given cookie's domain. + * + * @param url the url to check. + * @param cookie the cookie or cookie domain to check. + */ +http.withinCookieDomain = function(url, cookie) { + var rval = false; + + // cookie may be null, a cookie object, or a domain string + var domain = (cookie === null || typeof cookie === 'string') ? + cookie : cookie.domain; + + // any domain will do + if(domain === null) { + rval = true; + } else if(domain.charAt(0) === '.') { + // ensure domain starts with a '.' + // parse URL as necessary + if(typeof url === 'string') { + url = new URL(url); + } + + // add '.' to front of URL hostname to match against domain + var host = '.' + url.hostname; + + // if the host ends with domain then it falls within it + var idx = host.lastIndexOf(domain); + if(idx !== -1 && (idx + domain.length === host.length)) { + rval = true; + } + } + + return rval; +}; diff --git a/node_modules/node-forge/lib/index.all.js b/node_modules/node-forge/lib/index.all.js new file mode 100644 index 0000000..22ba72b --- /dev/null +++ b/node_modules/node-forge/lib/index.all.js @@ -0,0 +1,16 @@ +/** + * Node.js module for Forge with extra utils and networking. + * + * @author Dave Longley + * + * Copyright 2011-2016 Digital Bazaar, Inc. + */ +module.exports = require('./forge'); +// require core forge +require('./index'); +// additional utils and networking support +require('./form'); +require('./socket'); +require('./tlssocket'); +require('./http'); +require('./xhr'); diff --git a/node_modules/node-forge/lib/index.js b/node_modules/node-forge/lib/index.js new file mode 100644 index 0000000..6cdd5a9 --- /dev/null +++ b/node_modules/node-forge/lib/index.js @@ -0,0 +1,33 @@ +/** + * Node.js module for Forge. + * + * @author Dave Longley + * + * Copyright 2011-2016 Digital Bazaar, Inc. + */ +module.exports = require('./forge'); +require('./aes'); +require('./aesCipherSuites'); +require('./asn1'); +require('./cipher'); +require('./des'); +require('./ed25519'); +require('./hmac'); +require('./kem'); +require('./log'); +require('./md.all'); +require('./mgf1'); +require('./pbkdf2'); +require('./pem'); +require('./pkcs1'); +require('./pkcs12'); +require('./pkcs7'); +require('./pki'); +require('./prime'); +require('./prng'); +require('./pss'); +require('./random'); +require('./rc2'); +require('./ssh'); +require('./tls'); +require('./util'); diff --git a/node_modules/node-forge/lib/jsbn.js b/node_modules/node-forge/lib/jsbn.js new file mode 100644 index 0000000..11f965c --- /dev/null +++ b/node_modules/node-forge/lib/jsbn.js @@ -0,0 +1,1264 @@ +// Copyright (c) 2005 Tom Wu +// All Rights Reserved. +// See "LICENSE" for details. + +// Basic JavaScript BN library - subset useful for RSA encryption. + +/* +Licensing (LICENSE) +------------------- + +This software is covered under the following copyright: +*/ +/* + * Copyright (c) 2003-2005 Tom Wu + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL TOM WU BE LIABLE FOR ANY SPECIAL, INCIDENTAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF + * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT + * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * In addition, the following condition applies: + * + * All redistributions must retain an intact copy of this copyright notice + * and disclaimer. + */ +/* +Address all questions regarding this license to: + + Tom Wu + tjw@cs.Stanford.EDU +*/ +var forge = require('./forge'); + +module.exports = forge.jsbn = forge.jsbn || {}; + +// Bits per digit +var dbits; + +// JavaScript engine analysis +var canary = 0xdeadbeefcafe; +var j_lm = ((canary&0xffffff)==0xefcafe); + +// (public) Constructor +function BigInteger(a,b,c) { + this.data = []; + if(a != null) + if("number" == typeof a) this.fromNumber(a,b,c); + else if(b == null && "string" != typeof a) this.fromString(a,256); + else this.fromString(a,b); +} +forge.jsbn.BigInteger = BigInteger; + +// return new, unset BigInteger +function nbi() { return new BigInteger(null); } + +// am: Compute w_j += (x*this_i), propagate carries, +// c is initial carry, returns final carry. +// c < 3*dvalue, x < 2*dvalue, this_i < dvalue +// We need to select the fastest one that works in this environment. + +// am1: use a single mult and divide to get the high bits, +// max digit bits should be 26 because +// max internal value = 2*dvalue^2-2*dvalue (< 2^53) +function am1(i,x,w,j,c,n) { + while(--n >= 0) { + var v = x*this.data[i++]+w.data[j]+c; + c = Math.floor(v/0x4000000); + w.data[j++] = v&0x3ffffff; + } + return c; +} +// am2 avoids a big mult-and-extract completely. +// Max digit bits should be <= 30 because we do bitwise ops +// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31) +function am2(i,x,w,j,c,n) { + var xl = x&0x7fff, xh = x>>15; + while(--n >= 0) { + var l = this.data[i]&0x7fff; + var h = this.data[i++]>>15; + var m = xh*l+h*xl; + l = xl*l+((m&0x7fff)<<15)+w.data[j]+(c&0x3fffffff); + c = (l>>>30)+(m>>>15)+xh*h+(c>>>30); + w.data[j++] = l&0x3fffffff; + } + return c; +} +// Alternately, set max digit bits to 28 since some +// browsers slow down when dealing with 32-bit numbers. +function am3(i,x,w,j,c,n) { + var xl = x&0x3fff, xh = x>>14; + while(--n >= 0) { + var l = this.data[i]&0x3fff; + var h = this.data[i++]>>14; + var m = xh*l+h*xl; + l = xl*l+((m&0x3fff)<<14)+w.data[j]+c; + c = (l>>28)+(m>>14)+xh*h; + w.data[j++] = l&0xfffffff; + } + return c; +} + +// node.js (no browser) +if(typeof(navigator) === 'undefined') +{ + BigInteger.prototype.am = am3; + dbits = 28; +} else if(j_lm && (navigator.appName == "Microsoft Internet Explorer")) { + BigInteger.prototype.am = am2; + dbits = 30; +} else if(j_lm && (navigator.appName != "Netscape")) { + BigInteger.prototype.am = am1; + dbits = 26; +} else { // Mozilla/Netscape seems to prefer am3 + BigInteger.prototype.am = am3; + dbits = 28; +} + +BigInteger.prototype.DB = dbits; +BigInteger.prototype.DM = ((1<= 0; --i) r.data[i] = this.data[i]; + r.t = this.t; + r.s = this.s; +} + +// (protected) set from integer value x, -DV <= x < DV +function bnpFromInt(x) { + this.t = 1; + this.s = (x<0)?-1:0; + if(x > 0) this.data[0] = x; + else if(x < -1) this.data[0] = x+this.DV; + else this.t = 0; +} + +// return bigint initialized to value +function nbv(i) { var r = nbi(); r.fromInt(i); return r; } + +// (protected) set from string and radix +function bnpFromString(s,b) { + var k; + if(b == 16) k = 4; + else if(b == 8) k = 3; + else if(b == 256) k = 8; // byte array + else if(b == 2) k = 1; + else if(b == 32) k = 5; + else if(b == 4) k = 2; + else { this.fromRadix(s,b); return; } + this.t = 0; + this.s = 0; + var i = s.length, mi = false, sh = 0; + while(--i >= 0) { + var x = (k==8)?s[i]&0xff:intAt(s,i); + if(x < 0) { + if(s.charAt(i) == "-") mi = true; + continue; + } + mi = false; + if(sh == 0) + this.data[this.t++] = x; + else if(sh+k > this.DB) { + this.data[this.t-1] |= (x&((1<<(this.DB-sh))-1))<>(this.DB-sh)); + } else + this.data[this.t-1] |= x<= this.DB) sh -= this.DB; + } + if(k == 8 && (s[0]&0x80) != 0) { + this.s = -1; + if(sh > 0) this.data[this.t-1] |= ((1<<(this.DB-sh))-1)< 0 && this.data[this.t-1] == c) --this.t; +} + +// (public) return string representation in given radix +function bnToString(b) { + if(this.s < 0) return "-"+this.negate().toString(b); + var k; + if(b == 16) k = 4; + else if(b == 8) k = 3; + else if(b == 2) k = 1; + else if(b == 32) k = 5; + else if(b == 4) k = 2; + else return this.toRadix(b); + var km = (1< 0) { + if(p < this.DB && (d = this.data[i]>>p) > 0) { m = true; r = int2char(d); } + while(i >= 0) { + if(p < k) { + d = (this.data[i]&((1<>(p+=this.DB-k); + } else { + d = (this.data[i]>>(p-=k))&km; + if(p <= 0) { p += this.DB; --i; } + } + if(d > 0) m = true; + if(m) r += int2char(d); + } + } + return m?r:"0"; +} + +// (public) -this +function bnNegate() { var r = nbi(); BigInteger.ZERO.subTo(this,r); return r; } + +// (public) |this| +function bnAbs() { return (this.s<0)?this.negate():this; } + +// (public) return + if this > a, - if this < a, 0 if equal +function bnCompareTo(a) { + var r = this.s-a.s; + if(r != 0) return r; + var i = this.t; + r = i-a.t; + if(r != 0) return (this.s<0)?-r:r; + while(--i >= 0) if((r=this.data[i]-a.data[i]) != 0) return r; + return 0; +} + +// returns bit length of the integer x +function nbits(x) { + var r = 1, t; + if((t=x>>>16) != 0) { x = t; r += 16; } + if((t=x>>8) != 0) { x = t; r += 8; } + if((t=x>>4) != 0) { x = t; r += 4; } + if((t=x>>2) != 0) { x = t; r += 2; } + if((t=x>>1) != 0) { x = t; r += 1; } + return r; +} + +// (public) return the number of bits in "this" +function bnBitLength() { + if(this.t <= 0) return 0; + return this.DB*(this.t-1)+nbits(this.data[this.t-1]^(this.s&this.DM)); +} + +// (protected) r = this << n*DB +function bnpDLShiftTo(n,r) { + var i; + for(i = this.t-1; i >= 0; --i) r.data[i+n] = this.data[i]; + for(i = n-1; i >= 0; --i) r.data[i] = 0; + r.t = this.t+n; + r.s = this.s; +} + +// (protected) r = this >> n*DB +function bnpDRShiftTo(n,r) { + for(var i = n; i < this.t; ++i) r.data[i-n] = this.data[i]; + r.t = Math.max(this.t-n,0); + r.s = this.s; +} + +// (protected) r = this << n +function bnpLShiftTo(n,r) { + var bs = n%this.DB; + var cbs = this.DB-bs; + var bm = (1<= 0; --i) { + r.data[i+ds+1] = (this.data[i]>>cbs)|c; + c = (this.data[i]&bm)<= 0; --i) r.data[i] = 0; + r.data[ds] = c; + r.t = this.t+ds+1; + r.s = this.s; + r.clamp(); +} + +// (protected) r = this >> n +function bnpRShiftTo(n,r) { + r.s = this.s; + var ds = Math.floor(n/this.DB); + if(ds >= this.t) { r.t = 0; return; } + var bs = n%this.DB; + var cbs = this.DB-bs; + var bm = (1<>bs; + for(var i = ds+1; i < this.t; ++i) { + r.data[i-ds-1] |= (this.data[i]&bm)<>bs; + } + if(bs > 0) r.data[this.t-ds-1] |= (this.s&bm)<>= this.DB; + } + if(a.t < this.t) { + c -= a.s; + while(i < this.t) { + c += this.data[i]; + r.data[i++] = c&this.DM; + c >>= this.DB; + } + c += this.s; + } else { + c += this.s; + while(i < a.t) { + c -= a.data[i]; + r.data[i++] = c&this.DM; + c >>= this.DB; + } + c -= a.s; + } + r.s = (c<0)?-1:0; + if(c < -1) r.data[i++] = this.DV+c; + else if(c > 0) r.data[i++] = c; + r.t = i; + r.clamp(); +} + +// (protected) r = this * a, r != this,a (HAC 14.12) +// "this" should be the larger one if appropriate. +function bnpMultiplyTo(a,r) { + var x = this.abs(), y = a.abs(); + var i = x.t; + r.t = i+y.t; + while(--i >= 0) r.data[i] = 0; + for(i = 0; i < y.t; ++i) r.data[i+x.t] = x.am(0,y.data[i],r,i,0,x.t); + r.s = 0; + r.clamp(); + if(this.s != a.s) BigInteger.ZERO.subTo(r,r); +} + +// (protected) r = this^2, r != this (HAC 14.16) +function bnpSquareTo(r) { + var x = this.abs(); + var i = r.t = 2*x.t; + while(--i >= 0) r.data[i] = 0; + for(i = 0; i < x.t-1; ++i) { + var c = x.am(i,x.data[i],r,2*i,0,1); + if((r.data[i+x.t]+=x.am(i+1,2*x.data[i],r,2*i+1,c,x.t-i-1)) >= x.DV) { + r.data[i+x.t] -= x.DV; + r.data[i+x.t+1] = 1; + } + } + if(r.t > 0) r.data[r.t-1] += x.am(i,x.data[i],r,2*i,0,1); + r.s = 0; + r.clamp(); +} + +// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20) +// r != q, this != m. q or r may be null. +function bnpDivRemTo(m,q,r) { + var pm = m.abs(); + if(pm.t <= 0) return; + var pt = this.abs(); + if(pt.t < pm.t) { + if(q != null) q.fromInt(0); + if(r != null) this.copyTo(r); + return; + } + if(r == null) r = nbi(); + var y = nbi(), ts = this.s, ms = m.s; + var nsh = this.DB-nbits(pm.data[pm.t-1]); // normalize modulus + if(nsh > 0) { pm.lShiftTo(nsh,y); pt.lShiftTo(nsh,r); } else { pm.copyTo(y); pt.copyTo(r); } + var ys = y.t; + var y0 = y.data[ys-1]; + if(y0 == 0) return; + var yt = y0*(1<1)?y.data[ys-2]>>this.F2:0); + var d1 = this.FV/yt, d2 = (1<= 0) { + r.data[r.t++] = 1; + r.subTo(t,r); + } + BigInteger.ONE.dlShiftTo(ys,t); + t.subTo(y,y); // "negative" y so we can replace sub with am later + while(y.t < ys) y.data[y.t++] = 0; + while(--j >= 0) { + // Estimate quotient digit + var qd = (r.data[--i]==y0)?this.DM:Math.floor(r.data[i]*d1+(r.data[i-1]+e)*d2); + if((r.data[i]+=y.am(0,qd,r,j,0,ys)) < qd) { // Try it out + y.dlShiftTo(j,t); + r.subTo(t,r); + while(r.data[i] < --qd) r.subTo(t,r); + } + } + if(q != null) { + r.drShiftTo(ys,q); + if(ts != ms) BigInteger.ZERO.subTo(q,q); + } + r.t = ys; + r.clamp(); + if(nsh > 0) r.rShiftTo(nsh,r); // Denormalize remainder + if(ts < 0) BigInteger.ZERO.subTo(r,r); +} + +// (public) this mod a +function bnMod(a) { + var r = nbi(); + this.abs().divRemTo(a,null,r); + if(this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r,r); + return r; +} + +// Modular reduction using "classic" algorithm +function Classic(m) { this.m = m; } +function cConvert(x) { + if(x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m); + else return x; +} +function cRevert(x) { return x; } +function cReduce(x) { x.divRemTo(this.m,null,x); } +function cMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); } +function cSqrTo(x,r) { x.squareTo(r); this.reduce(r); } + +Classic.prototype.convert = cConvert; +Classic.prototype.revert = cRevert; +Classic.prototype.reduce = cReduce; +Classic.prototype.mulTo = cMulTo; +Classic.prototype.sqrTo = cSqrTo; + +// (protected) return "-1/this % 2^DB"; useful for Mont. reduction +// justification: +// xy == 1 (mod m) +// xy = 1+km +// xy(2-xy) = (1+km)(1-km) +// x[y(2-xy)] = 1-k^2m^2 +// x[y(2-xy)] == 1 (mod m^2) +// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2 +// should reduce x and y(2-xy) by m^2 at each step to keep size bounded. +// JS multiply "overflows" differently from C/C++, so care is needed here. +function bnpInvDigit() { + if(this.t < 1) return 0; + var x = this.data[0]; + if((x&1) == 0) return 0; + var y = x&3; // y == 1/x mod 2^2 + y = (y*(2-(x&0xf)*y))&0xf; // y == 1/x mod 2^4 + y = (y*(2-(x&0xff)*y))&0xff; // y == 1/x mod 2^8 + y = (y*(2-(((x&0xffff)*y)&0xffff)))&0xffff; // y == 1/x mod 2^16 + // last step - calculate inverse mod DV directly; + // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints + y = (y*(2-x*y%this.DV))%this.DV; // y == 1/x mod 2^dbits + // we really want the negative inverse, and -DV < y < DV + return (y>0)?this.DV-y:-y; +} + +// Montgomery reduction +function Montgomery(m) { + this.m = m; + this.mp = m.invDigit(); + this.mpl = this.mp&0x7fff; + this.mph = this.mp>>15; + this.um = (1<<(m.DB-15))-1; + this.mt2 = 2*m.t; +} + +// xR mod m +function montConvert(x) { + var r = nbi(); + x.abs().dlShiftTo(this.m.t,r); + r.divRemTo(this.m,null,r); + if(x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r,r); + return r; +} + +// x/R mod m +function montRevert(x) { + var r = nbi(); + x.copyTo(r); + this.reduce(r); + return r; +} + +// x = x/R mod m (HAC 14.32) +function montReduce(x) { + while(x.t <= this.mt2) // pad x so am has enough room later + x.data[x.t++] = 0; + for(var i = 0; i < this.m.t; ++i) { + // faster way of calculating u0 = x.data[i]*mp mod DV + var j = x.data[i]&0x7fff; + var u0 = (j*this.mpl+(((j*this.mph+(x.data[i]>>15)*this.mpl)&this.um)<<15))&x.DM; + // use am to combine the multiply-shift-add into one call + j = i+this.m.t; + x.data[j] += this.m.am(0,u0,x,i,0,this.m.t); + // propagate carry + while(x.data[j] >= x.DV) { x.data[j] -= x.DV; x.data[++j]++; } + } + x.clamp(); + x.drShiftTo(this.m.t,x); + if(x.compareTo(this.m) >= 0) x.subTo(this.m,x); +} + +// r = "x^2/R mod m"; x != r +function montSqrTo(x,r) { x.squareTo(r); this.reduce(r); } + +// r = "xy/R mod m"; x,y != r +function montMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); } + +Montgomery.prototype.convert = montConvert; +Montgomery.prototype.revert = montRevert; +Montgomery.prototype.reduce = montReduce; +Montgomery.prototype.mulTo = montMulTo; +Montgomery.prototype.sqrTo = montSqrTo; + +// (protected) true iff this is even +function bnpIsEven() { return ((this.t>0)?(this.data[0]&1):this.s) == 0; } + +// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79) +function bnpExp(e,z) { + if(e > 0xffffffff || e < 1) return BigInteger.ONE; + var r = nbi(), r2 = nbi(), g = z.convert(this), i = nbits(e)-1; + g.copyTo(r); + while(--i >= 0) { + z.sqrTo(r,r2); + if((e&(1< 0) z.mulTo(r2,g,r); + else { var t = r; r = r2; r2 = t; } + } + return z.revert(r); +} + +// (public) this^e % m, 0 <= e < 2^32 +function bnModPowInt(e,m) { + var z; + if(e < 256 || m.isEven()) z = new Classic(m); else z = new Montgomery(m); + return this.exp(e,z); +} + +// protected +BigInteger.prototype.copyTo = bnpCopyTo; +BigInteger.prototype.fromInt = bnpFromInt; +BigInteger.prototype.fromString = bnpFromString; +BigInteger.prototype.clamp = bnpClamp; +BigInteger.prototype.dlShiftTo = bnpDLShiftTo; +BigInteger.prototype.drShiftTo = bnpDRShiftTo; +BigInteger.prototype.lShiftTo = bnpLShiftTo; +BigInteger.prototype.rShiftTo = bnpRShiftTo; +BigInteger.prototype.subTo = bnpSubTo; +BigInteger.prototype.multiplyTo = bnpMultiplyTo; +BigInteger.prototype.squareTo = bnpSquareTo; +BigInteger.prototype.divRemTo = bnpDivRemTo; +BigInteger.prototype.invDigit = bnpInvDigit; +BigInteger.prototype.isEven = bnpIsEven; +BigInteger.prototype.exp = bnpExp; + +// public +BigInteger.prototype.toString = bnToString; +BigInteger.prototype.negate = bnNegate; +BigInteger.prototype.abs = bnAbs; +BigInteger.prototype.compareTo = bnCompareTo; +BigInteger.prototype.bitLength = bnBitLength; +BigInteger.prototype.mod = bnMod; +BigInteger.prototype.modPowInt = bnModPowInt; + +// "constants" +BigInteger.ZERO = nbv(0); +BigInteger.ONE = nbv(1); + +// jsbn2 lib + +//Copyright (c) 2005-2009 Tom Wu +//All Rights Reserved. +//See "LICENSE" for details (See jsbn.js for LICENSE). + +//Extended JavaScript BN functions, required for RSA private ops. + +//Version 1.1: new BigInteger("0", 10) returns "proper" zero + +//(public) +function bnClone() { var r = nbi(); this.copyTo(r); return r; } + +//(public) return value as integer +function bnIntValue() { +if(this.s < 0) { + if(this.t == 1) return this.data[0]-this.DV; + else if(this.t == 0) return -1; +} else if(this.t == 1) return this.data[0]; +else if(this.t == 0) return 0; +// assumes 16 < DB < 32 +return ((this.data[1]&((1<<(32-this.DB))-1))<>24; } + +//(public) return value as short (assumes DB>=16) +function bnShortValue() { return (this.t==0)?this.s:(this.data[0]<<16)>>16; } + +//(protected) return x s.t. r^x < DV +function bnpChunkSize(r) { return Math.floor(Math.LN2*this.DB/Math.log(r)); } + +//(public) 0 if this == 0, 1 if this > 0 +function bnSigNum() { +if(this.s < 0) return -1; +else if(this.t <= 0 || (this.t == 1 && this.data[0] <= 0)) return 0; +else return 1; +} + +//(protected) convert to radix string +function bnpToRadix(b) { +if(b == null) b = 10; +if(this.signum() == 0 || b < 2 || b > 36) return "0"; +var cs = this.chunkSize(b); +var a = Math.pow(b,cs); +var d = nbv(a), y = nbi(), z = nbi(), r = ""; +this.divRemTo(d,y,z); +while(y.signum() > 0) { + r = (a+z.intValue()).toString(b).substr(1) + r; + y.divRemTo(d,y,z); +} +return z.intValue().toString(b) + r; +} + +//(protected) convert from radix string +function bnpFromRadix(s,b) { +this.fromInt(0); +if(b == null) b = 10; +var cs = this.chunkSize(b); +var d = Math.pow(b,cs), mi = false, j = 0, w = 0; +for(var i = 0; i < s.length; ++i) { + var x = intAt(s,i); + if(x < 0) { + if(s.charAt(i) == "-" && this.signum() == 0) mi = true; + continue; + } + w = b*w+x; + if(++j >= cs) { + this.dMultiply(d); + this.dAddOffset(w,0); + j = 0; + w = 0; + } +} +if(j > 0) { + this.dMultiply(Math.pow(b,j)); + this.dAddOffset(w,0); +} +if(mi) BigInteger.ZERO.subTo(this,this); +} + +//(protected) alternate constructor +function bnpFromNumber(a,b,c) { +if("number" == typeof b) { + // new BigInteger(int,int,RNG) + if(a < 2) this.fromInt(1); + else { + this.fromNumber(a,c); + if(!this.testBit(a-1)) // force MSB set + this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this); + if(this.isEven()) this.dAddOffset(1,0); // force odd + while(!this.isProbablePrime(b)) { + this.dAddOffset(2,0); + if(this.bitLength() > a) this.subTo(BigInteger.ONE.shiftLeft(a-1),this); + } + } +} else { + // new BigInteger(int,RNG) + var x = new Array(), t = a&7; + x.length = (a>>3)+1; + b.nextBytes(x); + if(t > 0) x[0] &= ((1< 0) { + if(p < this.DB && (d = this.data[i]>>p) != (this.s&this.DM)>>p) + r[k++] = d|(this.s<<(this.DB-p)); + while(i >= 0) { + if(p < 8) { + d = (this.data[i]&((1<>(p+=this.DB-8); + } else { + d = (this.data[i]>>(p-=8))&0xff; + if(p <= 0) { p += this.DB; --i; } + } + if((d&0x80) != 0) d |= -256; + if(k == 0 && (this.s&0x80) != (d&0x80)) ++k; + if(k > 0 || d != this.s) r[k++] = d; + } +} +return r; +} + +function bnEquals(a) { return(this.compareTo(a)==0); } +function bnMin(a) { return(this.compareTo(a)<0)?this:a; } +function bnMax(a) { return(this.compareTo(a)>0)?this:a; } + +//(protected) r = this op a (bitwise) +function bnpBitwiseTo(a,op,r) { +var i, f, m = Math.min(a.t,this.t); +for(i = 0; i < m; ++i) r.data[i] = op(this.data[i],a.data[i]); +if(a.t < this.t) { + f = a.s&this.DM; + for(i = m; i < this.t; ++i) r.data[i] = op(this.data[i],f); + r.t = this.t; +} else { + f = this.s&this.DM; + for(i = m; i < a.t; ++i) r.data[i] = op(f,a.data[i]); + r.t = a.t; +} +r.s = op(this.s,a.s); +r.clamp(); +} + +//(public) this & a +function op_and(x,y) { return x&y; } +function bnAnd(a) { var r = nbi(); this.bitwiseTo(a,op_and,r); return r; } + +//(public) this | a +function op_or(x,y) { return x|y; } +function bnOr(a) { var r = nbi(); this.bitwiseTo(a,op_or,r); return r; } + +//(public) this ^ a +function op_xor(x,y) { return x^y; } +function bnXor(a) { var r = nbi(); this.bitwiseTo(a,op_xor,r); return r; } + +//(public) this & ~a +function op_andnot(x,y) { return x&~y; } +function bnAndNot(a) { var r = nbi(); this.bitwiseTo(a,op_andnot,r); return r; } + +//(public) ~this +function bnNot() { +var r = nbi(); +for(var i = 0; i < this.t; ++i) r.data[i] = this.DM&~this.data[i]; +r.t = this.t; +r.s = ~this.s; +return r; +} + +//(public) this << n +function bnShiftLeft(n) { +var r = nbi(); +if(n < 0) this.rShiftTo(-n,r); else this.lShiftTo(n,r); +return r; +} + +//(public) this >> n +function bnShiftRight(n) { +var r = nbi(); +if(n < 0) this.lShiftTo(-n,r); else this.rShiftTo(n,r); +return r; +} + +//return index of lowest 1-bit in x, x < 2^31 +function lbit(x) { +if(x == 0) return -1; +var r = 0; +if((x&0xffff) == 0) { x >>= 16; r += 16; } +if((x&0xff) == 0) { x >>= 8; r += 8; } +if((x&0xf) == 0) { x >>= 4; r += 4; } +if((x&3) == 0) { x >>= 2; r += 2; } +if((x&1) == 0) ++r; +return r; +} + +//(public) returns index of lowest 1-bit (or -1 if none) +function bnGetLowestSetBit() { +for(var i = 0; i < this.t; ++i) + if(this.data[i] != 0) return i*this.DB+lbit(this.data[i]); +if(this.s < 0) return this.t*this.DB; +return -1; +} + +//return number of 1 bits in x +function cbit(x) { +var r = 0; +while(x != 0) { x &= x-1; ++r; } +return r; +} + +//(public) return number of set bits +function bnBitCount() { +var r = 0, x = this.s&this.DM; +for(var i = 0; i < this.t; ++i) r += cbit(this.data[i]^x); +return r; +} + +//(public) true iff nth bit is set +function bnTestBit(n) { +var j = Math.floor(n/this.DB); +if(j >= this.t) return(this.s!=0); +return((this.data[j]&(1<<(n%this.DB)))!=0); +} + +//(protected) this op (1<>= this.DB; +} +if(a.t < this.t) { + c += a.s; + while(i < this.t) { + c += this.data[i]; + r.data[i++] = c&this.DM; + c >>= this.DB; + } + c += this.s; +} else { + c += this.s; + while(i < a.t) { + c += a.data[i]; + r.data[i++] = c&this.DM; + c >>= this.DB; + } + c += a.s; +} +r.s = (c<0)?-1:0; +if(c > 0) r.data[i++] = c; +else if(c < -1) r.data[i++] = this.DV+c; +r.t = i; +r.clamp(); +} + +//(public) this + a +function bnAdd(a) { var r = nbi(); this.addTo(a,r); return r; } + +//(public) this - a +function bnSubtract(a) { var r = nbi(); this.subTo(a,r); return r; } + +//(public) this * a +function bnMultiply(a) { var r = nbi(); this.multiplyTo(a,r); return r; } + +//(public) this / a +function bnDivide(a) { var r = nbi(); this.divRemTo(a,r,null); return r; } + +//(public) this % a +function bnRemainder(a) { var r = nbi(); this.divRemTo(a,null,r); return r; } + +//(public) [this/a,this%a] +function bnDivideAndRemainder(a) { +var q = nbi(), r = nbi(); +this.divRemTo(a,q,r); +return new Array(q,r); +} + +//(protected) this *= n, this >= 0, 1 < n < DV +function bnpDMultiply(n) { +this.data[this.t] = this.am(0,n-1,this,0,0,this.t); +++this.t; +this.clamp(); +} + +//(protected) this += n << w words, this >= 0 +function bnpDAddOffset(n,w) { +if(n == 0) return; +while(this.t <= w) this.data[this.t++] = 0; +this.data[w] += n; +while(this.data[w] >= this.DV) { + this.data[w] -= this.DV; + if(++w >= this.t) this.data[this.t++] = 0; + ++this.data[w]; +} +} + +//A "null" reducer +function NullExp() {} +function nNop(x) { return x; } +function nMulTo(x,y,r) { x.multiplyTo(y,r); } +function nSqrTo(x,r) { x.squareTo(r); } + +NullExp.prototype.convert = nNop; +NullExp.prototype.revert = nNop; +NullExp.prototype.mulTo = nMulTo; +NullExp.prototype.sqrTo = nSqrTo; + +//(public) this^e +function bnPow(e) { return this.exp(e,new NullExp()); } + +//(protected) r = lower n words of "this * a", a.t <= n +//"this" should be the larger one if appropriate. +function bnpMultiplyLowerTo(a,n,r) { +var i = Math.min(this.t+a.t,n); +r.s = 0; // assumes a,this >= 0 +r.t = i; +while(i > 0) r.data[--i] = 0; +var j; +for(j = r.t-this.t; i < j; ++i) r.data[i+this.t] = this.am(0,a.data[i],r,i,0,this.t); +for(j = Math.min(a.t,n); i < j; ++i) this.am(0,a.data[i],r,i,0,n-i); +r.clamp(); +} + +//(protected) r = "this * a" without lower n words, n > 0 +//"this" should be the larger one if appropriate. +function bnpMultiplyUpperTo(a,n,r) { +--n; +var i = r.t = this.t+a.t-n; +r.s = 0; // assumes a,this >= 0 +while(--i >= 0) r.data[i] = 0; +for(i = Math.max(n-this.t,0); i < a.t; ++i) + r.data[this.t+i-n] = this.am(n-i,a.data[i],r,0,0,this.t+i-n); +r.clamp(); +r.drShiftTo(1,r); +} + +//Barrett modular reduction +function Barrett(m) { +// setup Barrett +this.r2 = nbi(); +this.q3 = nbi(); +BigInteger.ONE.dlShiftTo(2*m.t,this.r2); +this.mu = this.r2.divide(m); +this.m = m; +} + +function barrettConvert(x) { +if(x.s < 0 || x.t > 2*this.m.t) return x.mod(this.m); +else if(x.compareTo(this.m) < 0) return x; +else { var r = nbi(); x.copyTo(r); this.reduce(r); return r; } +} + +function barrettRevert(x) { return x; } + +//x = x mod m (HAC 14.42) +function barrettReduce(x) { +x.drShiftTo(this.m.t-1,this.r2); +if(x.t > this.m.t+1) { x.t = this.m.t+1; x.clamp(); } +this.mu.multiplyUpperTo(this.r2,this.m.t+1,this.q3); +this.m.multiplyLowerTo(this.q3,this.m.t+1,this.r2); +while(x.compareTo(this.r2) < 0) x.dAddOffset(1,this.m.t+1); +x.subTo(this.r2,x); +while(x.compareTo(this.m) >= 0) x.subTo(this.m,x); +} + +//r = x^2 mod m; x != r +function barrettSqrTo(x,r) { x.squareTo(r); this.reduce(r); } + +//r = x*y mod m; x,y != r +function barrettMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); } + +Barrett.prototype.convert = barrettConvert; +Barrett.prototype.revert = barrettRevert; +Barrett.prototype.reduce = barrettReduce; +Barrett.prototype.mulTo = barrettMulTo; +Barrett.prototype.sqrTo = barrettSqrTo; + +//(public) this^e % m (HAC 14.85) +function bnModPow(e,m) { +var i = e.bitLength(), k, r = nbv(1), z; +if(i <= 0) return r; +else if(i < 18) k = 1; +else if(i < 48) k = 3; +else if(i < 144) k = 4; +else if(i < 768) k = 5; +else k = 6; +if(i < 8) + z = new Classic(m); +else if(m.isEven()) + z = new Barrett(m); +else + z = new Montgomery(m); + +// precomputation +var g = new Array(), n = 3, k1 = k-1, km = (1< 1) { + var g2 = nbi(); + z.sqrTo(g[1],g2); + while(n <= km) { + g[n] = nbi(); + z.mulTo(g2,g[n-2],g[n]); + n += 2; + } +} + +var j = e.t-1, w, is1 = true, r2 = nbi(), t; +i = nbits(e.data[j])-1; +while(j >= 0) { + if(i >= k1) w = (e.data[j]>>(i-k1))&km; + else { + w = (e.data[j]&((1<<(i+1))-1))<<(k1-i); + if(j > 0) w |= e.data[j-1]>>(this.DB+i-k1); + } + + n = k; + while((w&1) == 0) { w >>= 1; --n; } + if((i -= n) < 0) { i += this.DB; --j; } + if(is1) { // ret == 1, don't bother squaring or multiplying it + g[w].copyTo(r); + is1 = false; + } else { + while(n > 1) { z.sqrTo(r,r2); z.sqrTo(r2,r); n -= 2; } + if(n > 0) z.sqrTo(r,r2); else { t = r; r = r2; r2 = t; } + z.mulTo(r2,g[w],r); + } + + while(j >= 0 && (e.data[j]&(1< 0) { + x.rShiftTo(g,x); + y.rShiftTo(g,y); +} +while(x.signum() > 0) { + if((i = x.getLowestSetBit()) > 0) x.rShiftTo(i,x); + if((i = y.getLowestSetBit()) > 0) y.rShiftTo(i,y); + if(x.compareTo(y) >= 0) { + x.subTo(y,x); + x.rShiftTo(1,x); + } else { + y.subTo(x,y); + y.rShiftTo(1,y); + } +} +if(g > 0) y.lShiftTo(g,y); +return y; +} + +//(protected) this % n, n < 2^26 +function bnpModInt(n) { +if(n <= 0) return 0; +var d = this.DV%n, r = (this.s<0)?n-1:0; +if(this.t > 0) + if(d == 0) r = this.data[0]%n; + else for(var i = this.t-1; i >= 0; --i) r = (d*r+this.data[i])%n; +return r; +} + +//(public) 1/this % m (HAC 14.61) +function bnModInverse(m) { +var ac = m.isEven(); +if((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO; +var u = m.clone(), v = this.clone(); +var a = nbv(1), b = nbv(0), c = nbv(0), d = nbv(1); +while(u.signum() != 0) { + while(u.isEven()) { + u.rShiftTo(1,u); + if(ac) { + if(!a.isEven() || !b.isEven()) { a.addTo(this,a); b.subTo(m,b); } + a.rShiftTo(1,a); + } else if(!b.isEven()) b.subTo(m,b); + b.rShiftTo(1,b); + } + while(v.isEven()) { + v.rShiftTo(1,v); + if(ac) { + if(!c.isEven() || !d.isEven()) { c.addTo(this,c); d.subTo(m,d); } + c.rShiftTo(1,c); + } else if(!d.isEven()) d.subTo(m,d); + d.rShiftTo(1,d); + } + if(u.compareTo(v) >= 0) { + u.subTo(v,u); + if(ac) a.subTo(c,a); + b.subTo(d,b); + } else { + v.subTo(u,v); + if(ac) c.subTo(a,c); + d.subTo(b,d); + } +} +if(v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO; +if(d.compareTo(m) >= 0) return d.subtract(m); +if(d.signum() < 0) d.addTo(m,d); else return d; +if(d.signum() < 0) return d.add(m); else return d; +} + +var lowprimes = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509]; +var lplim = (1<<26)/lowprimes[lowprimes.length-1]; + +//(public) test primality with certainty >= 1-.5^t +function bnIsProbablePrime(t) { +var i, x = this.abs(); +if(x.t == 1 && x.data[0] <= lowprimes[lowprimes.length-1]) { + for(i = 0; i < lowprimes.length; ++i) + if(x.data[0] == lowprimes[i]) return true; + return false; +} +if(x.isEven()) return false; +i = 1; +while(i < lowprimes.length) { + var m = lowprimes[i], j = i+1; + while(j < lowprimes.length && m < lplim) m *= lowprimes[j++]; + m = x.modInt(m); + while(i < j) if(m%lowprimes[i++] == 0) return false; +} +return x.millerRabin(t); +} + +//(protected) true if probably prime (HAC 4.24, Miller-Rabin) +function bnpMillerRabin(t) { +var n1 = this.subtract(BigInteger.ONE); +var k = n1.getLowestSetBit(); +if(k <= 0) return false; +var r = n1.shiftRight(k); +var prng = bnGetPrng(); +var a; +for(var i = 0; i < t; ++i) { + // select witness 'a' at random from between 1 and n1 + do { + a = new BigInteger(this.bitLength(), prng); + } + while(a.compareTo(BigInteger.ONE) <= 0 || a.compareTo(n1) >= 0); + var y = a.modPow(r,this); + if(y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) { + var j = 1; + while(j++ < k && y.compareTo(n1) != 0) { + y = y.modPowInt(2,this); + if(y.compareTo(BigInteger.ONE) == 0) return false; + } + if(y.compareTo(n1) != 0) return false; + } +} +return true; +} + +// get pseudo random number generator +function bnGetPrng() { + // create prng with api that matches BigInteger secure random + return { + // x is an array to fill with bytes + nextBytes: function(x) { + for(var i = 0; i < x.length; ++i) { + x[i] = Math.floor(Math.random() * 0x0100); + } + } + }; +} + +//protected +BigInteger.prototype.chunkSize = bnpChunkSize; +BigInteger.prototype.toRadix = bnpToRadix; +BigInteger.prototype.fromRadix = bnpFromRadix; +BigInteger.prototype.fromNumber = bnpFromNumber; +BigInteger.prototype.bitwiseTo = bnpBitwiseTo; +BigInteger.prototype.changeBit = bnpChangeBit; +BigInteger.prototype.addTo = bnpAddTo; +BigInteger.prototype.dMultiply = bnpDMultiply; +BigInteger.prototype.dAddOffset = bnpDAddOffset; +BigInteger.prototype.multiplyLowerTo = bnpMultiplyLowerTo; +BigInteger.prototype.multiplyUpperTo = bnpMultiplyUpperTo; +BigInteger.prototype.modInt = bnpModInt; +BigInteger.prototype.millerRabin = bnpMillerRabin; + +//public +BigInteger.prototype.clone = bnClone; +BigInteger.prototype.intValue = bnIntValue; +BigInteger.prototype.byteValue = bnByteValue; +BigInteger.prototype.shortValue = bnShortValue; +BigInteger.prototype.signum = bnSigNum; +BigInteger.prototype.toByteArray = bnToByteArray; +BigInteger.prototype.equals = bnEquals; +BigInteger.prototype.min = bnMin; +BigInteger.prototype.max = bnMax; +BigInteger.prototype.and = bnAnd; +BigInteger.prototype.or = bnOr; +BigInteger.prototype.xor = bnXor; +BigInteger.prototype.andNot = bnAndNot; +BigInteger.prototype.not = bnNot; +BigInteger.prototype.shiftLeft = bnShiftLeft; +BigInteger.prototype.shiftRight = bnShiftRight; +BigInteger.prototype.getLowestSetBit = bnGetLowestSetBit; +BigInteger.prototype.bitCount = bnBitCount; +BigInteger.prototype.testBit = bnTestBit; +BigInteger.prototype.setBit = bnSetBit; +BigInteger.prototype.clearBit = bnClearBit; +BigInteger.prototype.flipBit = bnFlipBit; +BigInteger.prototype.add = bnAdd; +BigInteger.prototype.subtract = bnSubtract; +BigInteger.prototype.multiply = bnMultiply; +BigInteger.prototype.divide = bnDivide; +BigInteger.prototype.remainder = bnRemainder; +BigInteger.prototype.divideAndRemainder = bnDivideAndRemainder; +BigInteger.prototype.modPow = bnModPow; +BigInteger.prototype.modInverse = bnModInverse; +BigInteger.prototype.pow = bnPow; +BigInteger.prototype.gcd = bnGCD; +BigInteger.prototype.isProbablePrime = bnIsProbablePrime; + +//BigInteger interfaces not implemented in jsbn: + +//BigInteger(int signum, byte[] magnitude) +//double doubleValue() +//float floatValue() +//int hashCode() +//long longValue() +//static BigInteger valueOf(long val) diff --git a/node_modules/node-forge/lib/kem.js b/node_modules/node-forge/lib/kem.js new file mode 100644 index 0000000..1967016 --- /dev/null +++ b/node_modules/node-forge/lib/kem.js @@ -0,0 +1,168 @@ +/** + * Javascript implementation of RSA-KEM. + * + * @author Lautaro Cozzani Rodriguez + * @author Dave Longley + * + * Copyright (c) 2014 Lautaro Cozzani + * Copyright (c) 2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); +require('./random'); +require('./jsbn'); + +module.exports = forge.kem = forge.kem || {}; + +var BigInteger = forge.jsbn.BigInteger; + +/** + * The API for the RSA Key Encapsulation Mechanism (RSA-KEM) from ISO 18033-2. + */ +forge.kem.rsa = {}; + +/** + * Creates an RSA KEM API object for generating a secret asymmetric key. + * + * The symmetric key may be generated via a call to 'encrypt', which will + * produce a ciphertext to be transmitted to the recipient and a key to be + * kept secret. The ciphertext is a parameter to be passed to 'decrypt' which + * will produce the same secret key for the recipient to use to decrypt a + * message that was encrypted with the secret key. + * + * @param kdf the KDF API to use (eg: new forge.kem.kdf1()). + * @param options the options to use. + * [prng] a custom crypto-secure pseudo-random number generator to use, + * that must define "getBytesSync". + */ +forge.kem.rsa.create = function(kdf, options) { + options = options || {}; + var prng = options.prng || forge.random; + + var kem = {}; + + /** + * Generates a secret key and its encapsulation. + * + * @param publicKey the RSA public key to encrypt with. + * @param keyLength the length, in bytes, of the secret key to generate. + * + * @return an object with: + * encapsulation: the ciphertext for generating the secret key, as a + * binary-encoded string of bytes. + * key: the secret key to use for encrypting a message. + */ + kem.encrypt = function(publicKey, keyLength) { + // generate a random r where 1 < r < n + var byteLength = Math.ceil(publicKey.n.bitLength() / 8); + var r; + do { + r = new BigInteger( + forge.util.bytesToHex(prng.getBytesSync(byteLength)), + 16).mod(publicKey.n); + } while(r.compareTo(BigInteger.ONE) <= 0); + + // prepend r with zeros + r = forge.util.hexToBytes(r.toString(16)); + var zeros = byteLength - r.length; + if(zeros > 0) { + r = forge.util.fillString(String.fromCharCode(0), zeros) + r; + } + + // encrypt the random + var encapsulation = publicKey.encrypt(r, 'NONE'); + + // generate the secret key + var key = kdf.generate(r, keyLength); + + return {encapsulation: encapsulation, key: key}; + }; + + /** + * Decrypts an encapsulated secret key. + * + * @param privateKey the RSA private key to decrypt with. + * @param encapsulation the ciphertext for generating the secret key, as + * a binary-encoded string of bytes. + * @param keyLength the length, in bytes, of the secret key to generate. + * + * @return the secret key as a binary-encoded string of bytes. + */ + kem.decrypt = function(privateKey, encapsulation, keyLength) { + // decrypt the encapsulation and generate the secret key + var r = privateKey.decrypt(encapsulation, 'NONE'); + return kdf.generate(r, keyLength); + }; + + return kem; +}; + +// TODO: add forge.kem.kdf.create('KDF1', {md: ..., ...}) API? + +/** + * Creates a key derivation API object that implements KDF1 per ISO 18033-2. + * + * @param md the hash API to use. + * @param [digestLength] an optional digest length that must be positive and + * less than or equal to md.digestLength. + * + * @return a KDF1 API object. + */ +forge.kem.kdf1 = function(md, digestLength) { + _createKDF(this, md, 0, digestLength || md.digestLength); +}; + +/** + * Creates a key derivation API object that implements KDF2 per ISO 18033-2. + * + * @param md the hash API to use. + * @param [digestLength] an optional digest length that must be positive and + * less than or equal to md.digestLength. + * + * @return a KDF2 API object. + */ +forge.kem.kdf2 = function(md, digestLength) { + _createKDF(this, md, 1, digestLength || md.digestLength); +}; + +/** + * Creates a KDF1 or KDF2 API object. + * + * @param md the hash API to use. + * @param counterStart the starting index for the counter. + * @param digestLength the digest length to use. + * + * @return the KDF API object. + */ +function _createKDF(kdf, md, counterStart, digestLength) { + /** + * Generate a key of the specified length. + * + * @param x the binary-encoded byte string to generate a key from. + * @param length the number of bytes to generate (the size of the key). + * + * @return the key as a binary-encoded string. + */ + kdf.generate = function(x, length) { + var key = new forge.util.ByteBuffer(); + + // run counter from counterStart to ceil(length / Hash.len) + var k = Math.ceil(length / digestLength) + counterStart; + + var c = new forge.util.ByteBuffer(); + for(var i = counterStart; i < k; ++i) { + // I2OSP(i, 4): convert counter to an octet string of 4 octets + c.putInt32(i); + + // digest 'x' and the counter and add the result to the key + md.start(); + md.update(x + c.getBytes()); + var hash = md.digest(); + key.putBytes(hash.getBytes(digestLength)); + } + + // truncate to the correct key length + key.truncate(key.length() - length); + return key.getBytes(); + }; +} diff --git a/node_modules/node-forge/lib/log.js b/node_modules/node-forge/lib/log.js new file mode 100644 index 0000000..4ef7005 --- /dev/null +++ b/node_modules/node-forge/lib/log.js @@ -0,0 +1,319 @@ +/** + * Cross-browser support for logging in a web application. + * + * @author David I. Lehn + * + * Copyright (c) 2008-2013 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); + +/* LOG API */ +module.exports = forge.log = forge.log || {}; + +/** + * Application logging system. + * + * Each logger level available as it's own function of the form: + * forge.log.level(category, args...) + * The category is an arbitrary string, and the args are the same as + * Firebug's console.log API. By default the call will be output as: + * 'LEVEL [category] , args[1], ...' + * This enables proper % formatting via the first argument. + * Each category is enabled by default but can be enabled or disabled with + * the setCategoryEnabled() function. + */ +// list of known levels +forge.log.levels = [ + 'none', 'error', 'warning', 'info', 'debug', 'verbose', 'max']; +// info on the levels indexed by name: +// index: level index +// name: uppercased display name +var sLevelInfo = {}; +// list of loggers +var sLoggers = []; +/** + * Standard console logger. If no console support is enabled this will + * remain null. Check before using. + */ +var sConsoleLogger = null; + +// logger flags +/** + * Lock the level at the current value. Used in cases where user config may + * set the level such that only critical messages are seen but more verbose + * messages are needed for debugging or other purposes. + */ +forge.log.LEVEL_LOCKED = (1 << 1); +/** + * Always call log function. By default, the logging system will check the + * message level against logger.level before calling the log function. This + * flag allows the function to do its own check. + */ +forge.log.NO_LEVEL_CHECK = (1 << 2); +/** + * Perform message interpolation with the passed arguments. "%" style + * fields in log messages will be replaced by arguments as needed. Some + * loggers, such as Firebug, may do this automatically. The original log + * message will be available as 'message' and the interpolated version will + * be available as 'fullMessage'. + */ +forge.log.INTERPOLATE = (1 << 3); + +// setup each log level +for(var i = 0; i < forge.log.levels.length; ++i) { + var level = forge.log.levels[i]; + sLevelInfo[level] = { + index: i, + name: level.toUpperCase() + }; +} + +/** + * Message logger. Will dispatch a message to registered loggers as needed. + * + * @param message message object + */ +forge.log.logMessage = function(message) { + var messageLevelIndex = sLevelInfo[message.level].index; + for(var i = 0; i < sLoggers.length; ++i) { + var logger = sLoggers[i]; + if(logger.flags & forge.log.NO_LEVEL_CHECK) { + logger.f(message); + } else { + // get logger level + var loggerLevelIndex = sLevelInfo[logger.level].index; + // check level + if(messageLevelIndex <= loggerLevelIndex) { + // message critical enough, call logger + logger.f(logger, message); + } + } + } +}; + +/** + * Sets the 'standard' key on a message object to: + * "LEVEL [category] " + message + * + * @param message a message log object + */ +forge.log.prepareStandard = function(message) { + if(!('standard' in message)) { + message.standard = + sLevelInfo[message.level].name + + //' ' + +message.timestamp + + ' [' + message.category + '] ' + + message.message; + } +}; + +/** + * Sets the 'full' key on a message object to the original message + * interpolated via % formatting with the message arguments. + * + * @param message a message log object. + */ +forge.log.prepareFull = function(message) { + if(!('full' in message)) { + // copy args and insert message at the front + var args = [message.message]; + args = args.concat([] || message['arguments']); + // format the message + message.full = forge.util.format.apply(this, args); + } +}; + +/** + * Applies both preparseStandard() and prepareFull() to a message object and + * store result in 'standardFull'. + * + * @param message a message log object. + */ +forge.log.prepareStandardFull = function(message) { + if(!('standardFull' in message)) { + // FIXME implement 'standardFull' logging + forge.log.prepareStandard(message); + message.standardFull = message.standard; + } +}; + +// create log level functions +if(true) { + // levels for which we want functions + var levels = ['error', 'warning', 'info', 'debug', 'verbose']; + for(var i = 0; i < levels.length; ++i) { + // wrap in a function to ensure proper level var is passed + (function(level) { + // create function for this level + forge.log[level] = function(category, message/*, args...*/) { + // convert arguments to real array, remove category and message + var args = Array.prototype.slice.call(arguments).slice(2); + // create message object + // Note: interpolation and standard formatting is done lazily + var msg = { + timestamp: new Date(), + level: level, + category: category, + message: message, + 'arguments': args + /*standard*/ + /*full*/ + /*fullMessage*/ + }; + // process this message + forge.log.logMessage(msg); + }; + })(levels[i]); + } +} + +/** + * Creates a new logger with specified custom logging function. + * + * The logging function has a signature of: + * function(logger, message) + * logger: current logger + * message: object: + * level: level id + * category: category + * message: string message + * arguments: Array of extra arguments + * fullMessage: interpolated message and arguments if INTERPOLATE flag set + * + * @param logFunction a logging function which takes a log message object + * as a parameter. + * + * @return a logger object. + */ +forge.log.makeLogger = function(logFunction) { + var logger = { + flags: 0, + f: logFunction + }; + forge.log.setLevel(logger, 'none'); + return logger; +}; + +/** + * Sets the current log level on a logger. + * + * @param logger the target logger. + * @param level the new maximum log level as a string. + * + * @return true if set, false if not. + */ +forge.log.setLevel = function(logger, level) { + var rval = false; + if(logger && !(logger.flags & forge.log.LEVEL_LOCKED)) { + for(var i = 0; i < forge.log.levels.length; ++i) { + var aValidLevel = forge.log.levels[i]; + if(level == aValidLevel) { + // set level + logger.level = level; + rval = true; + break; + } + } + } + + return rval; +}; + +/** + * Locks the log level at its current value. + * + * @param logger the target logger. + * @param lock boolean lock value, default to true. + */ +forge.log.lock = function(logger, lock) { + if(typeof lock === 'undefined' || lock) { + logger.flags |= forge.log.LEVEL_LOCKED; + } else { + logger.flags &= ~forge.log.LEVEL_LOCKED; + } +}; + +/** + * Adds a logger. + * + * @param logger the logger object. + */ +forge.log.addLogger = function(logger) { + sLoggers.push(logger); +}; + +// setup the console logger if possible, else create fake console.log +if(typeof(console) !== 'undefined' && 'log' in console) { + var logger; + if(console.error && console.warn && console.info && console.debug) { + // looks like Firebug-style logging is available + // level handlers map + var levelHandlers = { + error: console.error, + warning: console.warn, + info: console.info, + debug: console.debug, + verbose: console.debug + }; + var f = function(logger, message) { + forge.log.prepareStandard(message); + var handler = levelHandlers[message.level]; + // prepend standard message and concat args + var args = [message.standard]; + args = args.concat(message['arguments'].slice()); + // apply to low-level console function + handler.apply(console, args); + }; + logger = forge.log.makeLogger(f); + } else { + // only appear to have basic console.log + var f = function(logger, message) { + forge.log.prepareStandardFull(message); + console.log(message.standardFull); + }; + logger = forge.log.makeLogger(f); + } + forge.log.setLevel(logger, 'debug'); + forge.log.addLogger(logger); + sConsoleLogger = logger; +} else { + // define fake console.log to avoid potential script errors on + // browsers that do not have console logging + console = { + log: function() {} + }; +} + +/* + * Check for logging control query vars in current URL. + * + * console.level= + * Set's the console log level by name. Useful to override defaults and + * allow more verbose logging before a user config is loaded. + * + * console.lock= + * Lock the console log level at whatever level it is set at. This is run + * after console.level is processed. Useful to force a level of verbosity + * that could otherwise be limited by a user config. + */ +if(sConsoleLogger !== null && + typeof window !== 'undefined' && window.location +) { + var query = new URL(window.location.href).searchParams; + if(query.has('console.level')) { + // set with last value + forge.log.setLevel( + sConsoleLogger, query.get('console.level').slice(-1)[0]); + } + if(query.has('console.lock')) { + // set with last value + var lock = query.get('console.lock').slice(-1)[0]; + if(lock == 'true') { + forge.log.lock(sConsoleLogger); + } + } +} + +// provide public access to console logger +forge.log.consoleLogger = sConsoleLogger; diff --git a/node_modules/node-forge/lib/md.all.js b/node_modules/node-forge/lib/md.all.js new file mode 100644 index 0000000..4e0974b --- /dev/null +++ b/node_modules/node-forge/lib/md.all.js @@ -0,0 +1,13 @@ +/** + * Node.js module for all known Forge message digests. + * + * @author Dave Longley + * + * Copyright 2011-2017 Digital Bazaar, Inc. + */ +module.exports = require('./md'); + +require('./md5'); +require('./sha1'); +require('./sha256'); +require('./sha512'); diff --git a/node_modules/node-forge/lib/md.js b/node_modules/node-forge/lib/md.js new file mode 100644 index 0000000..e4a280c --- /dev/null +++ b/node_modules/node-forge/lib/md.js @@ -0,0 +1,11 @@ +/** + * Node.js module for Forge message digests. + * + * @author Dave Longley + * + * Copyright 2011-2017 Digital Bazaar, Inc. + */ +var forge = require('./forge'); + +module.exports = forge.md = forge.md || {}; +forge.md.algorithms = forge.md.algorithms || {}; diff --git a/node_modules/node-forge/lib/md5.js b/node_modules/node-forge/lib/md5.js new file mode 100644 index 0000000..d0ba8f6 --- /dev/null +++ b/node_modules/node-forge/lib/md5.js @@ -0,0 +1,289 @@ +/** + * Message Digest Algorithm 5 with 128-bit digest (MD5) implementation. + * + * @author Dave Longley + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./md'); +require('./util'); + +var md5 = module.exports = forge.md5 = forge.md5 || {}; +forge.md.md5 = forge.md.algorithms.md5 = md5; + +/** + * Creates an MD5 message digest object. + * + * @return a message digest object. + */ +md5.create = function() { + // do initialization as necessary + if(!_initialized) { + _init(); + } + + // MD5 state contains four 32-bit integers + var _state = null; + + // input buffer + var _input = forge.util.createBuffer(); + + // used for word storage + var _w = new Array(16); + + // message digest object + var md = { + algorithm: 'md5', + blockLength: 64, + digestLength: 16, + // 56-bit length of message so far (does not including padding) + messageLength: 0, + // true message length + fullMessageLength: null, + // size of message length in bytes + messageLengthSize: 8 + }; + + /** + * Starts the digest. + * + * @return this digest object. + */ + md.start = function() { + // up to 56-bit message length for convenience + md.messageLength = 0; + + // full message length (set md.messageLength64 for backwards-compatibility) + md.fullMessageLength = md.messageLength64 = []; + var int32s = md.messageLengthSize / 4; + for(var i = 0; i < int32s; ++i) { + md.fullMessageLength.push(0); + } + _input = forge.util.createBuffer(); + _state = { + h0: 0x67452301, + h1: 0xEFCDAB89, + h2: 0x98BADCFE, + h3: 0x10325476 + }; + return md; + }; + // start digest automatically for first time + md.start(); + + /** + * Updates the digest with the given message input. The given input can + * treated as raw input (no encoding will be applied) or an encoding of + * 'utf8' maybe given to encode the input using UTF-8. + * + * @param msg the message input to update with. + * @param encoding the encoding to use (default: 'raw', other: 'utf8'). + * + * @return this digest object. + */ + md.update = function(msg, encoding) { + if(encoding === 'utf8') { + msg = forge.util.encodeUtf8(msg); + } + + // update message length + var len = msg.length; + md.messageLength += len; + len = [(len / 0x100000000) >>> 0, len >>> 0]; + for(var i = md.fullMessageLength.length - 1; i >= 0; --i) { + md.fullMessageLength[i] += len[1]; + len[1] = len[0] + ((md.fullMessageLength[i] / 0x100000000) >>> 0); + md.fullMessageLength[i] = md.fullMessageLength[i] >>> 0; + len[0] = (len[1] / 0x100000000) >>> 0; + } + + // add bytes to input buffer + _input.putBytes(msg); + + // process bytes + _update(_state, _w, _input); + + // compact input buffer every 2K or if empty + if(_input.read > 2048 || _input.length() === 0) { + _input.compact(); + } + + return md; + }; + + /** + * Produces the digest. + * + * @return a byte buffer containing the digest value. + */ + md.digest = function() { + /* Note: Here we copy the remaining bytes in the input buffer and + add the appropriate MD5 padding. Then we do the final update + on a copy of the state so that if the user wants to get + intermediate digests they can do so. */ + + /* Determine the number of bytes that must be added to the message + to ensure its length is congruent to 448 mod 512. In other words, + the data to be digested must be a multiple of 512 bits (or 128 bytes). + This data includes the message, some padding, and the length of the + message. Since the length of the message will be encoded as 8 bytes (64 + bits), that means that the last segment of the data must have 56 bytes + (448 bits) of message and padding. Therefore, the length of the message + plus the padding must be congruent to 448 mod 512 because + 512 - 128 = 448. + + In order to fill up the message length it must be filled with + padding that begins with 1 bit followed by all 0 bits. Padding + must *always* be present, so if the message length is already + congruent to 448 mod 512, then 512 padding bits must be added. */ + + var finalBlock = forge.util.createBuffer(); + finalBlock.putBytes(_input.bytes()); + + // compute remaining size to be digested (include message length size) + var remaining = ( + md.fullMessageLength[md.fullMessageLength.length - 1] + + md.messageLengthSize); + + // add padding for overflow blockSize - overflow + // _padding starts with 1 byte with first bit is set (byte value 128), then + // there may be up to (blockSize - 1) other pad bytes + var overflow = remaining & (md.blockLength - 1); + finalBlock.putBytes(_padding.substr(0, md.blockLength - overflow)); + + // serialize message length in bits in little-endian order; since length + // is stored in bytes we multiply by 8 and add carry + var bits, carry = 0; + for(var i = md.fullMessageLength.length - 1; i >= 0; --i) { + bits = md.fullMessageLength[i] * 8 + carry; + carry = (bits / 0x100000000) >>> 0; + finalBlock.putInt32Le(bits >>> 0); + } + + var s2 = { + h0: _state.h0, + h1: _state.h1, + h2: _state.h2, + h3: _state.h3 + }; + _update(s2, _w, finalBlock); + var rval = forge.util.createBuffer(); + rval.putInt32Le(s2.h0); + rval.putInt32Le(s2.h1); + rval.putInt32Le(s2.h2); + rval.putInt32Le(s2.h3); + return rval; + }; + + return md; +}; + +// padding, constant tables for calculating md5 +var _padding = null; +var _g = null; +var _r = null; +var _k = null; +var _initialized = false; + +/** + * Initializes the constant tables. + */ +function _init() { + // create padding + _padding = String.fromCharCode(128); + _padding += forge.util.fillString(String.fromCharCode(0x00), 64); + + // g values + _g = [ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 1, 6, 11, 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12, + 5, 8, 11, 14, 1, 4, 7, 10, 13, 0, 3, 6, 9, 12, 15, 2, + 0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9]; + + // rounds table + _r = [ + 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, + 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, + 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, + 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21]; + + // get the result of abs(sin(i + 1)) as a 32-bit integer + _k = new Array(64); + for(var i = 0; i < 64; ++i) { + _k[i] = Math.floor(Math.abs(Math.sin(i + 1)) * 0x100000000); + } + + // now initialized + _initialized = true; +} + +/** + * Updates an MD5 state with the given byte buffer. + * + * @param s the MD5 state to update. + * @param w the array to use to store words. + * @param bytes the byte buffer to update with. + */ +function _update(s, w, bytes) { + // consume 512 bit (64 byte) chunks + var t, a, b, c, d, f, r, i; + var len = bytes.length(); + while(len >= 64) { + // initialize hash value for this chunk + a = s.h0; + b = s.h1; + c = s.h2; + d = s.h3; + + // round 1 + for(i = 0; i < 16; ++i) { + w[i] = bytes.getInt32Le(); + f = d ^ (b & (c ^ d)); + t = (a + f + _k[i] + w[i]); + r = _r[i]; + a = d; + d = c; + c = b; + b += (t << r) | (t >>> (32 - r)); + } + // round 2 + for(; i < 32; ++i) { + f = c ^ (d & (b ^ c)); + t = (a + f + _k[i] + w[_g[i]]); + r = _r[i]; + a = d; + d = c; + c = b; + b += (t << r) | (t >>> (32 - r)); + } + // round 3 + for(; i < 48; ++i) { + f = b ^ c ^ d; + t = (a + f + _k[i] + w[_g[i]]); + r = _r[i]; + a = d; + d = c; + c = b; + b += (t << r) | (t >>> (32 - r)); + } + // round 4 + for(; i < 64; ++i) { + f = c ^ (b | ~d); + t = (a + f + _k[i] + w[_g[i]]); + r = _r[i]; + a = d; + d = c; + c = b; + b += (t << r) | (t >>> (32 - r)); + } + + // update hash state + s.h0 = (s.h0 + a) | 0; + s.h1 = (s.h1 + b) | 0; + s.h2 = (s.h2 + c) | 0; + s.h3 = (s.h3 + d) | 0; + + len -= 64; + } +} diff --git a/node_modules/node-forge/lib/mgf.js b/node_modules/node-forge/lib/mgf.js new file mode 100644 index 0000000..0223bc3 --- /dev/null +++ b/node_modules/node-forge/lib/mgf.js @@ -0,0 +1,12 @@ +/** + * Node.js module for Forge mask generation functions. + * + * @author Stefan Siegl + * + * Copyright 2012 Stefan Siegl + */ +var forge = require('./forge'); +require('./mgf1'); + +module.exports = forge.mgf = forge.mgf || {}; +forge.mgf.mgf1 = forge.mgf1; diff --git a/node_modules/node-forge/lib/mgf1.js b/node_modules/node-forge/lib/mgf1.js new file mode 100644 index 0000000..25ed1f7 --- /dev/null +++ b/node_modules/node-forge/lib/mgf1.js @@ -0,0 +1,57 @@ +/** + * Javascript implementation of mask generation function MGF1. + * + * @author Stefan Siegl + * @author Dave Longley + * + * Copyright (c) 2012 Stefan Siegl + * Copyright (c) 2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); + +forge.mgf = forge.mgf || {}; +var mgf1 = module.exports = forge.mgf.mgf1 = forge.mgf1 = forge.mgf1 || {}; + +/** + * Creates a MGF1 mask generation function object. + * + * @param md the message digest API to use (eg: forge.md.sha1.create()). + * + * @return a mask generation function object. + */ +mgf1.create = function(md) { + var mgf = { + /** + * Generate mask of specified length. + * + * @param {String} seed The seed for mask generation. + * @param maskLen Number of bytes to generate. + * @return {String} The generated mask. + */ + generate: function(seed, maskLen) { + /* 2. Let T be the empty octet string. */ + var t = new forge.util.ByteBuffer(); + + /* 3. For counter from 0 to ceil(maskLen / hLen), do the following: */ + var len = Math.ceil(maskLen / md.digestLength); + for(var i = 0; i < len; i++) { + /* a. Convert counter to an octet string C of length 4 octets */ + var c = new forge.util.ByteBuffer(); + c.putInt32(i); + + /* b. Concatenate the hash of the seed mgfSeed and C to the octet + * string T: */ + md.start(); + md.update(seed + c.getBytes()); + t.putBuffer(md.digest()); + } + + /* Output the leading maskLen octets of T as the octet string mask. */ + t.truncate(t.length() - maskLen); + return t.getBytes(); + } + }; + + return mgf; +}; diff --git a/node_modules/node-forge/lib/oids.js b/node_modules/node-forge/lib/oids.js new file mode 100644 index 0000000..d1504eb --- /dev/null +++ b/node_modules/node-forge/lib/oids.js @@ -0,0 +1,179 @@ +/** + * Object IDs for ASN.1. + * + * @author Dave Longley + * + * Copyright (c) 2010-2013 Digital Bazaar, Inc. + */ +var forge = require('./forge'); + +forge.pki = forge.pki || {}; +var oids = module.exports = forge.pki.oids = forge.oids = forge.oids || {}; + +// set id to name mapping and name to id mapping +function _IN(id, name) { + oids[id] = name; + oids[name] = id; +} +// set id to name mapping only +function _I_(id, name) { + oids[id] = name; +} + +// algorithm OIDs +_IN('1.2.840.113549.1.1.1', 'rsaEncryption'); +// Note: md2 & md4 not implemented +//_IN('1.2.840.113549.1.1.2', 'md2WithRSAEncryption'); +//_IN('1.2.840.113549.1.1.3', 'md4WithRSAEncryption'); +_IN('1.2.840.113549.1.1.4', 'md5WithRSAEncryption'); +_IN('1.2.840.113549.1.1.5', 'sha1WithRSAEncryption'); +_IN('1.2.840.113549.1.1.7', 'RSAES-OAEP'); +_IN('1.2.840.113549.1.1.8', 'mgf1'); +_IN('1.2.840.113549.1.1.9', 'pSpecified'); +_IN('1.2.840.113549.1.1.10', 'RSASSA-PSS'); +_IN('1.2.840.113549.1.1.11', 'sha256WithRSAEncryption'); +_IN('1.2.840.113549.1.1.12', 'sha384WithRSAEncryption'); +_IN('1.2.840.113549.1.1.13', 'sha512WithRSAEncryption'); +// Edwards-curve Digital Signature Algorithm (EdDSA) Ed25519 +_IN('1.3.101.112', 'EdDSA25519'); + +_IN('1.2.840.10040.4.3', 'dsa-with-sha1'); + +_IN('1.3.14.3.2.7', 'desCBC'); + +_IN('1.3.14.3.2.26', 'sha1'); +// Deprecated equivalent of sha1WithRSAEncryption +_IN('1.3.14.3.2.29', 'sha1WithRSASignature'); +_IN('2.16.840.1.101.3.4.2.1', 'sha256'); +_IN('2.16.840.1.101.3.4.2.2', 'sha384'); +_IN('2.16.840.1.101.3.4.2.3', 'sha512'); +_IN('2.16.840.1.101.3.4.2.4', 'sha224'); +_IN('2.16.840.1.101.3.4.2.5', 'sha512-224'); +_IN('2.16.840.1.101.3.4.2.6', 'sha512-256'); +_IN('1.2.840.113549.2.2', 'md2'); +_IN('1.2.840.113549.2.5', 'md5'); + +// pkcs#7 content types +_IN('1.2.840.113549.1.7.1', 'data'); +_IN('1.2.840.113549.1.7.2', 'signedData'); +_IN('1.2.840.113549.1.7.3', 'envelopedData'); +_IN('1.2.840.113549.1.7.4', 'signedAndEnvelopedData'); +_IN('1.2.840.113549.1.7.5', 'digestedData'); +_IN('1.2.840.113549.1.7.6', 'encryptedData'); + +// pkcs#9 oids +_IN('1.2.840.113549.1.9.1', 'emailAddress'); +_IN('1.2.840.113549.1.9.2', 'unstructuredName'); +_IN('1.2.840.113549.1.9.3', 'contentType'); +_IN('1.2.840.113549.1.9.4', 'messageDigest'); +_IN('1.2.840.113549.1.9.5', 'signingTime'); +_IN('1.2.840.113549.1.9.6', 'counterSignature'); +_IN('1.2.840.113549.1.9.7', 'challengePassword'); +_IN('1.2.840.113549.1.9.8', 'unstructuredAddress'); +_IN('1.2.840.113549.1.9.14', 'extensionRequest'); + +_IN('1.2.840.113549.1.9.20', 'friendlyName'); +_IN('1.2.840.113549.1.9.21', 'localKeyId'); +_IN('1.2.840.113549.1.9.22.1', 'x509Certificate'); + +// pkcs#12 safe bags +_IN('1.2.840.113549.1.12.10.1.1', 'keyBag'); +_IN('1.2.840.113549.1.12.10.1.2', 'pkcs8ShroudedKeyBag'); +_IN('1.2.840.113549.1.12.10.1.3', 'certBag'); +_IN('1.2.840.113549.1.12.10.1.4', 'crlBag'); +_IN('1.2.840.113549.1.12.10.1.5', 'secretBag'); +_IN('1.2.840.113549.1.12.10.1.6', 'safeContentsBag'); + +// password-based-encryption for pkcs#12 +_IN('1.2.840.113549.1.5.13', 'pkcs5PBES2'); +_IN('1.2.840.113549.1.5.12', 'pkcs5PBKDF2'); + +_IN('1.2.840.113549.1.12.1.1', 'pbeWithSHAAnd128BitRC4'); +_IN('1.2.840.113549.1.12.1.2', 'pbeWithSHAAnd40BitRC4'); +_IN('1.2.840.113549.1.12.1.3', 'pbeWithSHAAnd3-KeyTripleDES-CBC'); +_IN('1.2.840.113549.1.12.1.4', 'pbeWithSHAAnd2-KeyTripleDES-CBC'); +_IN('1.2.840.113549.1.12.1.5', 'pbeWithSHAAnd128BitRC2-CBC'); +_IN('1.2.840.113549.1.12.1.6', 'pbewithSHAAnd40BitRC2-CBC'); + +// hmac OIDs +_IN('1.2.840.113549.2.7', 'hmacWithSHA1'); +_IN('1.2.840.113549.2.8', 'hmacWithSHA224'); +_IN('1.2.840.113549.2.9', 'hmacWithSHA256'); +_IN('1.2.840.113549.2.10', 'hmacWithSHA384'); +_IN('1.2.840.113549.2.11', 'hmacWithSHA512'); + +// symmetric key algorithm oids +_IN('1.2.840.113549.3.7', 'des-EDE3-CBC'); +_IN('2.16.840.1.101.3.4.1.2', 'aes128-CBC'); +_IN('2.16.840.1.101.3.4.1.22', 'aes192-CBC'); +_IN('2.16.840.1.101.3.4.1.42', 'aes256-CBC'); + +// certificate issuer/subject OIDs +_IN('2.5.4.3', 'commonName'); +_IN('2.5.4.4', 'surname'); +_IN('2.5.4.5', 'serialNumber'); +_IN('2.5.4.6', 'countryName'); +_IN('2.5.4.7', 'localityName'); +_IN('2.5.4.8', 'stateOrProvinceName'); +_IN('2.5.4.9', 'streetAddress'); +_IN('2.5.4.10', 'organizationName'); +_IN('2.5.4.11', 'organizationalUnitName'); +_IN('2.5.4.12', 'title'); +_IN('2.5.4.13', 'description'); +_IN('2.5.4.15', 'businessCategory'); +_IN('2.5.4.17', 'postalCode'); +_IN('2.5.4.42', 'givenName'); +_IN('1.3.6.1.4.1.311.60.2.1.2', 'jurisdictionOfIncorporationStateOrProvinceName'); +_IN('1.3.6.1.4.1.311.60.2.1.3', 'jurisdictionOfIncorporationCountryName'); + +// X.509 extension OIDs +_IN('2.16.840.1.113730.1.1', 'nsCertType'); +_IN('2.16.840.1.113730.1.13', 'nsComment'); // deprecated in theory; still widely used +_I_('2.5.29.1', 'authorityKeyIdentifier'); // deprecated, use .35 +_I_('2.5.29.2', 'keyAttributes'); // obsolete use .37 or .15 +_I_('2.5.29.3', 'certificatePolicies'); // deprecated, use .32 +_I_('2.5.29.4', 'keyUsageRestriction'); // obsolete use .37 or .15 +_I_('2.5.29.5', 'policyMapping'); // deprecated use .33 +_I_('2.5.29.6', 'subtreesConstraint'); // obsolete use .30 +_I_('2.5.29.7', 'subjectAltName'); // deprecated use .17 +_I_('2.5.29.8', 'issuerAltName'); // deprecated use .18 +_I_('2.5.29.9', 'subjectDirectoryAttributes'); +_I_('2.5.29.10', 'basicConstraints'); // deprecated use .19 +_I_('2.5.29.11', 'nameConstraints'); // deprecated use .30 +_I_('2.5.29.12', 'policyConstraints'); // deprecated use .36 +_I_('2.5.29.13', 'basicConstraints'); // deprecated use .19 +_IN('2.5.29.14', 'subjectKeyIdentifier'); +_IN('2.5.29.15', 'keyUsage'); +_I_('2.5.29.16', 'privateKeyUsagePeriod'); +_IN('2.5.29.17', 'subjectAltName'); +_IN('2.5.29.18', 'issuerAltName'); +_IN('2.5.29.19', 'basicConstraints'); +_I_('2.5.29.20', 'cRLNumber'); +_I_('2.5.29.21', 'cRLReason'); +_I_('2.5.29.22', 'expirationDate'); +_I_('2.5.29.23', 'instructionCode'); +_I_('2.5.29.24', 'invalidityDate'); +_I_('2.5.29.25', 'cRLDistributionPoints'); // deprecated use .31 +_I_('2.5.29.26', 'issuingDistributionPoint'); // deprecated use .28 +_I_('2.5.29.27', 'deltaCRLIndicator'); +_I_('2.5.29.28', 'issuingDistributionPoint'); +_I_('2.5.29.29', 'certificateIssuer'); +_I_('2.5.29.30', 'nameConstraints'); +_IN('2.5.29.31', 'cRLDistributionPoints'); +_IN('2.5.29.32', 'certificatePolicies'); +_I_('2.5.29.33', 'policyMappings'); +_I_('2.5.29.34', 'policyConstraints'); // deprecated use .36 +_IN('2.5.29.35', 'authorityKeyIdentifier'); +_I_('2.5.29.36', 'policyConstraints'); +_IN('2.5.29.37', 'extKeyUsage'); +_I_('2.5.29.46', 'freshestCRL'); +_I_('2.5.29.54', 'inhibitAnyPolicy'); + +// extKeyUsage purposes +_IN('1.3.6.1.4.1.11129.2.4.2', 'timestampList'); +_IN('1.3.6.1.5.5.7.1.1', 'authorityInfoAccess'); +_IN('1.3.6.1.5.5.7.3.1', 'serverAuth'); +_IN('1.3.6.1.5.5.7.3.2', 'clientAuth'); +_IN('1.3.6.1.5.5.7.3.3', 'codeSigning'); +_IN('1.3.6.1.5.5.7.3.4', 'emailProtection'); +_IN('1.3.6.1.5.5.7.3.8', 'timeStamping'); diff --git a/node_modules/node-forge/lib/pbe.js b/node_modules/node-forge/lib/pbe.js new file mode 100644 index 0000000..cf8456b --- /dev/null +++ b/node_modules/node-forge/lib/pbe.js @@ -0,0 +1,1023 @@ +/** + * Password-based encryption functions. + * + * @author Dave Longley + * @author Stefan Siegl + * + * Copyright (c) 2010-2013 Digital Bazaar, Inc. + * Copyright (c) 2012 Stefan Siegl + * + * An EncryptedPrivateKeyInfo: + * + * EncryptedPrivateKeyInfo ::= SEQUENCE { + * encryptionAlgorithm EncryptionAlgorithmIdentifier, + * encryptedData EncryptedData } + * + * EncryptionAlgorithmIdentifier ::= AlgorithmIdentifier + * + * EncryptedData ::= OCTET STRING + */ +var forge = require('./forge'); +require('./aes'); +require('./asn1'); +require('./des'); +require('./md'); +require('./oids'); +require('./pbkdf2'); +require('./pem'); +require('./random'); +require('./rc2'); +require('./rsa'); +require('./util'); + +if(typeof BigInteger === 'undefined') { + var BigInteger = forge.jsbn.BigInteger; +} + +// shortcut for asn.1 API +var asn1 = forge.asn1; + +/* Password-based encryption implementation. */ +var pki = forge.pki = forge.pki || {}; +module.exports = pki.pbe = forge.pbe = forge.pbe || {}; +var oids = pki.oids; + +// validator for an EncryptedPrivateKeyInfo structure +// Note: Currently only works w/algorithm params +var encryptedPrivateKeyValidator = { + name: 'EncryptedPrivateKeyInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'EncryptedPrivateKeyInfo.encryptionAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'AlgorithmIdentifier.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'encryptionOid' + }, { + name: 'AlgorithmIdentifier.parameters', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'encryptionParams' + }] + }, { + // encryptedData + name: 'EncryptedPrivateKeyInfo.encryptedData', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'encryptedData' + }] +}; + +// validator for a PBES2Algorithms structure +// Note: Currently only works w/PBKDF2 + AES encryption schemes +var PBES2AlgorithmsValidator = { + name: 'PBES2Algorithms', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'PBES2Algorithms.keyDerivationFunc', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'PBES2Algorithms.keyDerivationFunc.oid', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'kdfOid' + }, { + name: 'PBES2Algorithms.params', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'PBES2Algorithms.params.salt', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'kdfSalt' + }, { + name: 'PBES2Algorithms.params.iterationCount', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'kdfIterationCount' + }, { + name: 'PBES2Algorithms.params.keyLength', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + optional: true, + capture: 'keyLength' + }, { + // prf + name: 'PBES2Algorithms.params.prf', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + optional: true, + value: [{ + name: 'PBES2Algorithms.params.prf.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'prfOid' + }] + }] + }] + }, { + name: 'PBES2Algorithms.encryptionScheme', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'PBES2Algorithms.encryptionScheme.oid', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'encOid' + }, { + name: 'PBES2Algorithms.encryptionScheme.iv', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'encIv' + }] + }] +}; + +var pkcs12PbeParamsValidator = { + name: 'pkcs-12PbeParams', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'pkcs-12PbeParams.salt', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'salt' + }, { + name: 'pkcs-12PbeParams.iterations', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'iterations' + }] +}; + +/** + * Encrypts a ASN.1 PrivateKeyInfo object, producing an EncryptedPrivateKeyInfo. + * + * PBES2Algorithms ALGORITHM-IDENTIFIER ::= + * { {PBES2-params IDENTIFIED BY id-PBES2}, ...} + * + * id-PBES2 OBJECT IDENTIFIER ::= {pkcs-5 13} + * + * PBES2-params ::= SEQUENCE { + * keyDerivationFunc AlgorithmIdentifier {{PBES2-KDFs}}, + * encryptionScheme AlgorithmIdentifier {{PBES2-Encs}} + * } + * + * PBES2-KDFs ALGORITHM-IDENTIFIER ::= + * { {PBKDF2-params IDENTIFIED BY id-PBKDF2}, ... } + * + * PBES2-Encs ALGORITHM-IDENTIFIER ::= { ... } + * + * PBKDF2-params ::= SEQUENCE { + * salt CHOICE { + * specified OCTET STRING, + * otherSource AlgorithmIdentifier {{PBKDF2-SaltSources}} + * }, + * iterationCount INTEGER (1..MAX), + * keyLength INTEGER (1..MAX) OPTIONAL, + * prf AlgorithmIdentifier {{PBKDF2-PRFs}} DEFAULT algid-hmacWithSHA1 + * } + * + * @param obj the ASN.1 PrivateKeyInfo object. + * @param password the password to encrypt with. + * @param options: + * algorithm the encryption algorithm to use + * ('aes128', 'aes192', 'aes256', '3des'), defaults to 'aes128'. + * count the iteration count to use. + * saltSize the salt size to use. + * prfAlgorithm the PRF message digest algorithm to use + * ('sha1', 'sha224', 'sha256', 'sha384', 'sha512') + * + * @return the ASN.1 EncryptedPrivateKeyInfo. + */ +pki.encryptPrivateKeyInfo = function(obj, password, options) { + // set default options + options = options || {}; + options.saltSize = options.saltSize || 8; + options.count = options.count || 2048; + options.algorithm = options.algorithm || 'aes128'; + options.prfAlgorithm = options.prfAlgorithm || 'sha1'; + + // generate PBE params + var salt = forge.random.getBytesSync(options.saltSize); + var count = options.count; + var countBytes = asn1.integerToDer(count); + var dkLen; + var encryptionAlgorithm; + var encryptedData; + if(options.algorithm.indexOf('aes') === 0 || options.algorithm === 'des') { + // do PBES2 + var ivLen, encOid, cipherFn; + switch(options.algorithm) { + case 'aes128': + dkLen = 16; + ivLen = 16; + encOid = oids['aes128-CBC']; + cipherFn = forge.aes.createEncryptionCipher; + break; + case 'aes192': + dkLen = 24; + ivLen = 16; + encOid = oids['aes192-CBC']; + cipherFn = forge.aes.createEncryptionCipher; + break; + case 'aes256': + dkLen = 32; + ivLen = 16; + encOid = oids['aes256-CBC']; + cipherFn = forge.aes.createEncryptionCipher; + break; + case 'des': + dkLen = 8; + ivLen = 8; + encOid = oids['desCBC']; + cipherFn = forge.des.createEncryptionCipher; + break; + default: + var error = new Error('Cannot encrypt private key. Unknown encryption algorithm.'); + error.algorithm = options.algorithm; + throw error; + } + + // get PRF message digest + var prfAlgorithm = 'hmacWith' + options.prfAlgorithm.toUpperCase(); + var md = prfAlgorithmToMessageDigest(prfAlgorithm); + + // encrypt private key using pbe SHA-1 and AES/DES + var dk = forge.pkcs5.pbkdf2(password, salt, count, dkLen, md); + var iv = forge.random.getBytesSync(ivLen); + var cipher = cipherFn(dk); + cipher.start(iv); + cipher.update(asn1.toDer(obj)); + cipher.finish(); + encryptedData = cipher.output.getBytes(); + + // get PBKDF2-params + var params = createPbkdf2Params(salt, countBytes, dkLen, prfAlgorithm); + + encryptionAlgorithm = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(oids['pkcs5PBES2']).getBytes()), + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // keyDerivationFunc + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(oids['pkcs5PBKDF2']).getBytes()), + // PBKDF2-params + params + ]), + // encryptionScheme + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(encOid).getBytes()), + // iv + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, iv) + ]) + ]) + ]); + } else if(options.algorithm === '3des') { + // Do PKCS12 PBE + dkLen = 24; + + var saltBytes = new forge.util.ByteBuffer(salt); + var dk = pki.pbe.generatePkcs12Key(password, saltBytes, 1, count, dkLen); + var iv = pki.pbe.generatePkcs12Key(password, saltBytes, 2, count, dkLen); + var cipher = forge.des.createEncryptionCipher(dk); + cipher.start(iv); + cipher.update(asn1.toDer(obj)); + cipher.finish(); + encryptedData = cipher.output.getBytes(); + + encryptionAlgorithm = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(oids['pbeWithSHAAnd3-KeyTripleDES-CBC']).getBytes()), + // pkcs-12PbeParams + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // salt + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, salt), + // iteration count + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + countBytes.getBytes()) + ]) + ]); + } else { + var error = new Error('Cannot encrypt private key. Unknown encryption algorithm.'); + error.algorithm = options.algorithm; + throw error; + } + + // EncryptedPrivateKeyInfo + var rval = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // encryptionAlgorithm + encryptionAlgorithm, + // encryptedData + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, encryptedData) + ]); + return rval; +}; + +/** + * Decrypts a ASN.1 PrivateKeyInfo object. + * + * @param obj the ASN.1 EncryptedPrivateKeyInfo object. + * @param password the password to decrypt with. + * + * @return the ASN.1 PrivateKeyInfo on success, null on failure. + */ +pki.decryptPrivateKeyInfo = function(obj, password) { + var rval = null; + + // get PBE params + var capture = {}; + var errors = []; + if(!asn1.validate(obj, encryptedPrivateKeyValidator, capture, errors)) { + var error = new Error('Cannot read encrypted private key. ' + + 'ASN.1 object is not a supported EncryptedPrivateKeyInfo.'); + error.errors = errors; + throw error; + } + + // get cipher + var oid = asn1.derToOid(capture.encryptionOid); + var cipher = pki.pbe.getCipher(oid, capture.encryptionParams, password); + + // get encrypted data + var encrypted = forge.util.createBuffer(capture.encryptedData); + + cipher.update(encrypted); + if(cipher.finish()) { + rval = asn1.fromDer(cipher.output); + } + + return rval; +}; + +/** + * Converts a EncryptedPrivateKeyInfo to PEM format. + * + * @param epki the EncryptedPrivateKeyInfo. + * @param maxline the maximum characters per line, defaults to 64. + * + * @return the PEM-formatted encrypted private key. + */ +pki.encryptedPrivateKeyToPem = function(epki, maxline) { + // convert to DER, then PEM-encode + var msg = { + type: 'ENCRYPTED PRIVATE KEY', + body: asn1.toDer(epki).getBytes() + }; + return forge.pem.encode(msg, {maxline: maxline}); +}; + +/** + * Converts a PEM-encoded EncryptedPrivateKeyInfo to ASN.1 format. Decryption + * is not performed. + * + * @param pem the EncryptedPrivateKeyInfo in PEM-format. + * + * @return the ASN.1 EncryptedPrivateKeyInfo. + */ +pki.encryptedPrivateKeyFromPem = function(pem) { + var msg = forge.pem.decode(pem)[0]; + + if(msg.type !== 'ENCRYPTED PRIVATE KEY') { + var error = new Error('Could not convert encrypted private key from PEM; ' + + 'PEM header type is "ENCRYPTED PRIVATE KEY".'); + error.headerType = msg.type; + throw error; + } + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + throw new Error('Could not convert encrypted private key from PEM; ' + + 'PEM is encrypted.'); + } + + // convert DER to ASN.1 object + return asn1.fromDer(msg.body); +}; + +/** + * Encrypts an RSA private key. By default, the key will be wrapped in + * a PrivateKeyInfo and encrypted to produce a PKCS#8 EncryptedPrivateKeyInfo. + * This is the standard, preferred way to encrypt a private key. + * + * To produce a non-standard PEM-encrypted private key that uses encapsulated + * headers to indicate the encryption algorithm (old-style non-PKCS#8 OpenSSL + * private key encryption), set the 'legacy' option to true. Note: Using this + * option will cause the iteration count to be forced to 1. + * + * Note: The 'des' algorithm is supported, but it is not considered to be + * secure because it only uses a single 56-bit key. If possible, it is highly + * recommended that a different algorithm be used. + * + * @param rsaKey the RSA key to encrypt. + * @param password the password to use. + * @param options: + * algorithm: the encryption algorithm to use + * ('aes128', 'aes192', 'aes256', '3des', 'des'). + * count: the iteration count to use. + * saltSize: the salt size to use. + * legacy: output an old non-PKCS#8 PEM-encrypted+encapsulated + * headers (DEK-Info) private key. + * + * @return the PEM-encoded ASN.1 EncryptedPrivateKeyInfo. + */ +pki.encryptRsaPrivateKey = function(rsaKey, password, options) { + // standard PKCS#8 + options = options || {}; + if(!options.legacy) { + // encrypt PrivateKeyInfo + var rval = pki.wrapRsaPrivateKey(pki.privateKeyToAsn1(rsaKey)); + rval = pki.encryptPrivateKeyInfo(rval, password, options); + return pki.encryptedPrivateKeyToPem(rval); + } + + // legacy non-PKCS#8 + var algorithm; + var iv; + var dkLen; + var cipherFn; + switch(options.algorithm) { + case 'aes128': + algorithm = 'AES-128-CBC'; + dkLen = 16; + iv = forge.random.getBytesSync(16); + cipherFn = forge.aes.createEncryptionCipher; + break; + case 'aes192': + algorithm = 'AES-192-CBC'; + dkLen = 24; + iv = forge.random.getBytesSync(16); + cipherFn = forge.aes.createEncryptionCipher; + break; + case 'aes256': + algorithm = 'AES-256-CBC'; + dkLen = 32; + iv = forge.random.getBytesSync(16); + cipherFn = forge.aes.createEncryptionCipher; + break; + case '3des': + algorithm = 'DES-EDE3-CBC'; + dkLen = 24; + iv = forge.random.getBytesSync(8); + cipherFn = forge.des.createEncryptionCipher; + break; + case 'des': + algorithm = 'DES-CBC'; + dkLen = 8; + iv = forge.random.getBytesSync(8); + cipherFn = forge.des.createEncryptionCipher; + break; + default: + var error = new Error('Could not encrypt RSA private key; unsupported ' + + 'encryption algorithm "' + options.algorithm + '".'); + error.algorithm = options.algorithm; + throw error; + } + + // encrypt private key using OpenSSL legacy key derivation + var dk = forge.pbe.opensslDeriveBytes(password, iv.substr(0, 8), dkLen); + var cipher = cipherFn(dk); + cipher.start(iv); + cipher.update(asn1.toDer(pki.privateKeyToAsn1(rsaKey))); + cipher.finish(); + + var msg = { + type: 'RSA PRIVATE KEY', + procType: { + version: '4', + type: 'ENCRYPTED' + }, + dekInfo: { + algorithm: algorithm, + parameters: forge.util.bytesToHex(iv).toUpperCase() + }, + body: cipher.output.getBytes() + }; + return forge.pem.encode(msg); +}; + +/** + * Decrypts an RSA private key. + * + * @param pem the PEM-formatted EncryptedPrivateKeyInfo to decrypt. + * @param password the password to use. + * + * @return the RSA key on success, null on failure. + */ +pki.decryptRsaPrivateKey = function(pem, password) { + var rval = null; + + var msg = forge.pem.decode(pem)[0]; + + if(msg.type !== 'ENCRYPTED PRIVATE KEY' && + msg.type !== 'PRIVATE KEY' && + msg.type !== 'RSA PRIVATE KEY') { + var error = new Error('Could not convert private key from PEM; PEM header type ' + + 'is not "ENCRYPTED PRIVATE KEY", "PRIVATE KEY", or "RSA PRIVATE KEY".'); + error.headerType = error; + throw error; + } + + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + var dkLen; + var cipherFn; + switch(msg.dekInfo.algorithm) { + case 'DES-CBC': + dkLen = 8; + cipherFn = forge.des.createDecryptionCipher; + break; + case 'DES-EDE3-CBC': + dkLen = 24; + cipherFn = forge.des.createDecryptionCipher; + break; + case 'AES-128-CBC': + dkLen = 16; + cipherFn = forge.aes.createDecryptionCipher; + break; + case 'AES-192-CBC': + dkLen = 24; + cipherFn = forge.aes.createDecryptionCipher; + break; + case 'AES-256-CBC': + dkLen = 32; + cipherFn = forge.aes.createDecryptionCipher; + break; + case 'RC2-40-CBC': + dkLen = 5; + cipherFn = function(key) { + return forge.rc2.createDecryptionCipher(key, 40); + }; + break; + case 'RC2-64-CBC': + dkLen = 8; + cipherFn = function(key) { + return forge.rc2.createDecryptionCipher(key, 64); + }; + break; + case 'RC2-128-CBC': + dkLen = 16; + cipherFn = function(key) { + return forge.rc2.createDecryptionCipher(key, 128); + }; + break; + default: + var error = new Error('Could not decrypt private key; unsupported ' + + 'encryption algorithm "' + msg.dekInfo.algorithm + '".'); + error.algorithm = msg.dekInfo.algorithm; + throw error; + } + + // use OpenSSL legacy key derivation + var iv = forge.util.hexToBytes(msg.dekInfo.parameters); + var dk = forge.pbe.opensslDeriveBytes(password, iv.substr(0, 8), dkLen); + var cipher = cipherFn(dk); + cipher.start(iv); + cipher.update(forge.util.createBuffer(msg.body)); + if(cipher.finish()) { + rval = cipher.output.getBytes(); + } else { + return rval; + } + } else { + rval = msg.body; + } + + if(msg.type === 'ENCRYPTED PRIVATE KEY') { + rval = pki.decryptPrivateKeyInfo(asn1.fromDer(rval), password); + } else { + // decryption already performed above + rval = asn1.fromDer(rval); + } + + if(rval !== null) { + rval = pki.privateKeyFromAsn1(rval); + } + + return rval; +}; + +/** + * Derives a PKCS#12 key. + * + * @param password the password to derive the key material from, null or + * undefined for none. + * @param salt the salt, as a ByteBuffer, to use. + * @param id the PKCS#12 ID byte (1 = key material, 2 = IV, 3 = MAC). + * @param iter the iteration count. + * @param n the number of bytes to derive from the password. + * @param md the message digest to use, defaults to SHA-1. + * + * @return a ByteBuffer with the bytes derived from the password. + */ +pki.pbe.generatePkcs12Key = function(password, salt, id, iter, n, md) { + var j, l; + + if(typeof md === 'undefined' || md === null) { + if(!('sha1' in forge.md)) { + throw new Error('"sha1" hash algorithm unavailable.'); + } + md = forge.md.sha1.create(); + } + + var u = md.digestLength; + var v = md.blockLength; + var result = new forge.util.ByteBuffer(); + + /* Convert password to Unicode byte buffer + trailing 0-byte. */ + var passBuf = new forge.util.ByteBuffer(); + if(password !== null && password !== undefined) { + for(l = 0; l < password.length; l++) { + passBuf.putInt16(password.charCodeAt(l)); + } + passBuf.putInt16(0); + } + + /* Length of salt and password in BYTES. */ + var p = passBuf.length(); + var s = salt.length(); + + /* 1. Construct a string, D (the "diversifier"), by concatenating + v copies of ID. */ + var D = new forge.util.ByteBuffer(); + D.fillWithByte(id, v); + + /* 2. Concatenate copies of the salt together to create a string S of length + v * ceil(s / v) bytes (the final copy of the salt may be trunacted + to create S). + Note that if the salt is the empty string, then so is S. */ + var Slen = v * Math.ceil(s / v); + var S = new forge.util.ByteBuffer(); + for(l = 0; l < Slen; l++) { + S.putByte(salt.at(l % s)); + } + + /* 3. Concatenate copies of the password together to create a string P of + length v * ceil(p / v) bytes (the final copy of the password may be + truncated to create P). + Note that if the password is the empty string, then so is P. */ + var Plen = v * Math.ceil(p / v); + var P = new forge.util.ByteBuffer(); + for(l = 0; l < Plen; l++) { + P.putByte(passBuf.at(l % p)); + } + + /* 4. Set I=S||P to be the concatenation of S and P. */ + var I = S; + I.putBuffer(P); + + /* 5. Set c=ceil(n / u). */ + var c = Math.ceil(n / u); + + /* 6. For i=1, 2, ..., c, do the following: */ + for(var i = 1; i <= c; i++) { + /* a) Set Ai=H^r(D||I). (l.e. the rth hash of D||I, H(H(H(...H(D||I)))) */ + var buf = new forge.util.ByteBuffer(); + buf.putBytes(D.bytes()); + buf.putBytes(I.bytes()); + for(var round = 0; round < iter; round++) { + md.start(); + md.update(buf.getBytes()); + buf = md.digest(); + } + + /* b) Concatenate copies of Ai to create a string B of length v bytes (the + final copy of Ai may be truncated to create B). */ + var B = new forge.util.ByteBuffer(); + for(l = 0; l < v; l++) { + B.putByte(buf.at(l % u)); + } + + /* c) Treating I as a concatenation I0, I1, ..., Ik-1 of v-byte blocks, + where k=ceil(s / v) + ceil(p / v), modify I by setting + Ij=(Ij+B+1) mod 2v for each j. */ + var k = Math.ceil(s / v) + Math.ceil(p / v); + var Inew = new forge.util.ByteBuffer(); + for(j = 0; j < k; j++) { + var chunk = new forge.util.ByteBuffer(I.getBytes(v)); + var x = 0x1ff; + for(l = B.length() - 1; l >= 0; l--) { + x = x >> 8; + x += B.at(l) + chunk.at(l); + chunk.setAt(l, x & 0xff); + } + Inew.putBuffer(chunk); + } + I = Inew; + + /* Add Ai to A. */ + result.putBuffer(buf); + } + + result.truncate(result.length() - n); + return result; +}; + +/** + * Get new Forge cipher object instance. + * + * @param oid the OID (in string notation). + * @param params the ASN.1 params object. + * @param password the password to decrypt with. + * + * @return new cipher object instance. + */ +pki.pbe.getCipher = function(oid, params, password) { + switch(oid) { + case pki.oids['pkcs5PBES2']: + return pki.pbe.getCipherForPBES2(oid, params, password); + + case pki.oids['pbeWithSHAAnd3-KeyTripleDES-CBC']: + case pki.oids['pbewithSHAAnd40BitRC2-CBC']: + return pki.pbe.getCipherForPKCS12PBE(oid, params, password); + + default: + var error = new Error('Cannot read encrypted PBE data block. Unsupported OID.'); + error.oid = oid; + error.supportedOids = [ + 'pkcs5PBES2', + 'pbeWithSHAAnd3-KeyTripleDES-CBC', + 'pbewithSHAAnd40BitRC2-CBC' + ]; + throw error; + } +}; + +/** + * Get new Forge cipher object instance according to PBES2 params block. + * + * The returned cipher instance is already started using the IV + * from PBES2 parameter block. + * + * @param oid the PKCS#5 PBKDF2 OID (in string notation). + * @param params the ASN.1 PBES2-params object. + * @param password the password to decrypt with. + * + * @return new cipher object instance. + */ +pki.pbe.getCipherForPBES2 = function(oid, params, password) { + // get PBE params + var capture = {}; + var errors = []; + if(!asn1.validate(params, PBES2AlgorithmsValidator, capture, errors)) { + var error = new Error('Cannot read password-based-encryption algorithm ' + + 'parameters. ASN.1 object is not a supported EncryptedPrivateKeyInfo.'); + error.errors = errors; + throw error; + } + + // check oids + oid = asn1.derToOid(capture.kdfOid); + if(oid !== pki.oids['pkcs5PBKDF2']) { + var error = new Error('Cannot read encrypted private key. ' + + 'Unsupported key derivation function OID.'); + error.oid = oid; + error.supportedOids = ['pkcs5PBKDF2']; + throw error; + } + oid = asn1.derToOid(capture.encOid); + if(oid !== pki.oids['aes128-CBC'] && + oid !== pki.oids['aes192-CBC'] && + oid !== pki.oids['aes256-CBC'] && + oid !== pki.oids['des-EDE3-CBC'] && + oid !== pki.oids['desCBC']) { + var error = new Error('Cannot read encrypted private key. ' + + 'Unsupported encryption scheme OID.'); + error.oid = oid; + error.supportedOids = [ + 'aes128-CBC', 'aes192-CBC', 'aes256-CBC', 'des-EDE3-CBC', 'desCBC']; + throw error; + } + + // set PBE params + var salt = capture.kdfSalt; + var count = forge.util.createBuffer(capture.kdfIterationCount); + count = count.getInt(count.length() << 3); + var dkLen; + var cipherFn; + switch(pki.oids[oid]) { + case 'aes128-CBC': + dkLen = 16; + cipherFn = forge.aes.createDecryptionCipher; + break; + case 'aes192-CBC': + dkLen = 24; + cipherFn = forge.aes.createDecryptionCipher; + break; + case 'aes256-CBC': + dkLen = 32; + cipherFn = forge.aes.createDecryptionCipher; + break; + case 'des-EDE3-CBC': + dkLen = 24; + cipherFn = forge.des.createDecryptionCipher; + break; + case 'desCBC': + dkLen = 8; + cipherFn = forge.des.createDecryptionCipher; + break; + } + + // get PRF message digest + var md = prfOidToMessageDigest(capture.prfOid); + + // decrypt private key using pbe with chosen PRF and AES/DES + var dk = forge.pkcs5.pbkdf2(password, salt, count, dkLen, md); + var iv = capture.encIv; + var cipher = cipherFn(dk); + cipher.start(iv); + + return cipher; +}; + +/** + * Get new Forge cipher object instance for PKCS#12 PBE. + * + * The returned cipher instance is already started using the key & IV + * derived from the provided password and PKCS#12 PBE salt. + * + * @param oid The PKCS#12 PBE OID (in string notation). + * @param params The ASN.1 PKCS#12 PBE-params object. + * @param password The password to decrypt with. + * + * @return the new cipher object instance. + */ +pki.pbe.getCipherForPKCS12PBE = function(oid, params, password) { + // get PBE params + var capture = {}; + var errors = []; + if(!asn1.validate(params, pkcs12PbeParamsValidator, capture, errors)) { + var error = new Error('Cannot read password-based-encryption algorithm ' + + 'parameters. ASN.1 object is not a supported EncryptedPrivateKeyInfo.'); + error.errors = errors; + throw error; + } + + var salt = forge.util.createBuffer(capture.salt); + var count = forge.util.createBuffer(capture.iterations); + count = count.getInt(count.length() << 3); + + var dkLen, dIvLen, cipherFn; + switch(oid) { + case pki.oids['pbeWithSHAAnd3-KeyTripleDES-CBC']: + dkLen = 24; + dIvLen = 8; + cipherFn = forge.des.startDecrypting; + break; + + case pki.oids['pbewithSHAAnd40BitRC2-CBC']: + dkLen = 5; + dIvLen = 8; + cipherFn = function(key, iv) { + var cipher = forge.rc2.createDecryptionCipher(key, 40); + cipher.start(iv, null); + return cipher; + }; + break; + + default: + var error = new Error('Cannot read PKCS #12 PBE data block. Unsupported OID.'); + error.oid = oid; + throw error; + } + + // get PRF message digest + var md = prfOidToMessageDigest(capture.prfOid); + var key = pki.pbe.generatePkcs12Key(password, salt, 1, count, dkLen, md); + md.start(); + var iv = pki.pbe.generatePkcs12Key(password, salt, 2, count, dIvLen, md); + + return cipherFn(key, iv); +}; + +/** + * OpenSSL's legacy key derivation function. + * + * See: http://www.openssl.org/docs/crypto/EVP_BytesToKey.html + * + * @param password the password to derive the key from. + * @param salt the salt to use, null for none. + * @param dkLen the number of bytes needed for the derived key. + * @param [options] the options to use: + * [md] an optional message digest object to use. + */ +pki.pbe.opensslDeriveBytes = function(password, salt, dkLen, md) { + if(typeof md === 'undefined' || md === null) { + if(!('md5' in forge.md)) { + throw new Error('"md5" hash algorithm unavailable.'); + } + md = forge.md.md5.create(); + } + if(salt === null) { + salt = ''; + } + var digests = [hash(md, password + salt)]; + for(var length = 16, i = 1; length < dkLen; ++i, length += 16) { + digests.push(hash(md, digests[i - 1] + password + salt)); + } + return digests.join('').substr(0, dkLen); +}; + +function hash(md, bytes) { + return md.start().update(bytes).digest().getBytes(); +} + +function prfOidToMessageDigest(prfOid) { + // get PRF algorithm, default to SHA-1 + var prfAlgorithm; + if(!prfOid) { + prfAlgorithm = 'hmacWithSHA1'; + } else { + prfAlgorithm = pki.oids[asn1.derToOid(prfOid)]; + if(!prfAlgorithm) { + var error = new Error('Unsupported PRF OID.'); + error.oid = prfOid; + error.supported = [ + 'hmacWithSHA1', 'hmacWithSHA224', 'hmacWithSHA256', 'hmacWithSHA384', + 'hmacWithSHA512']; + throw error; + } + } + return prfAlgorithmToMessageDigest(prfAlgorithm); +} + +function prfAlgorithmToMessageDigest(prfAlgorithm) { + var factory = forge.md; + switch(prfAlgorithm) { + case 'hmacWithSHA224': + factory = forge.md.sha512; + case 'hmacWithSHA1': + case 'hmacWithSHA256': + case 'hmacWithSHA384': + case 'hmacWithSHA512': + prfAlgorithm = prfAlgorithm.substr(8).toLowerCase(); + break; + default: + var error = new Error('Unsupported PRF algorithm.'); + error.algorithm = prfAlgorithm; + error.supported = [ + 'hmacWithSHA1', 'hmacWithSHA224', 'hmacWithSHA256', 'hmacWithSHA384', + 'hmacWithSHA512']; + throw error; + } + if(!factory || !(prfAlgorithm in factory)) { + throw new Error('Unknown hash algorithm: ' + prfAlgorithm); + } + return factory[prfAlgorithm].create(); +} + +function createPbkdf2Params(salt, countBytes, dkLen, prfAlgorithm) { + var params = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // salt + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, salt), + // iteration count + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + countBytes.getBytes()) + ]); + // when PRF algorithm is not SHA-1 default, add key length and PRF algorithm + if(prfAlgorithm !== 'hmacWithSHA1') { + params.value.push( + // key length + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + forge.util.hexToBytes(dkLen.toString(16))), + // AlgorithmIdentifier + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids[prfAlgorithm]).getBytes()), + // parameters (null) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ])); + } + return params; +} diff --git a/node_modules/node-forge/lib/pbkdf2.js b/node_modules/node-forge/lib/pbkdf2.js new file mode 100644 index 0000000..714560e --- /dev/null +++ b/node_modules/node-forge/lib/pbkdf2.js @@ -0,0 +1,211 @@ +/** + * Password-Based Key-Derivation Function #2 implementation. + * + * See RFC 2898 for details. + * + * @author Dave Longley + * + * Copyright (c) 2010-2013 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./hmac'); +require('./md'); +require('./util'); + +var pkcs5 = forge.pkcs5 = forge.pkcs5 || {}; + +var crypto; +if(forge.util.isNodejs && !forge.options.usePureJavaScript) { + crypto = require('crypto'); +} + +/** + * Derives a key from a password. + * + * @param p the password as a binary-encoded string of bytes. + * @param s the salt as a binary-encoded string of bytes. + * @param c the iteration count, a positive integer. + * @param dkLen the intended length, in bytes, of the derived key, + * (max: 2^32 - 1) * hash length of the PRF. + * @param [md] the message digest (or algorithm identifier as a string) to use + * in the PRF, defaults to SHA-1. + * @param [callback(err, key)] presence triggers asynchronous version, called + * once the operation completes. + * + * @return the derived key, as a binary-encoded string of bytes, for the + * synchronous version (if no callback is specified). + */ +module.exports = forge.pbkdf2 = pkcs5.pbkdf2 = function( + p, s, c, dkLen, md, callback) { + if(typeof md === 'function') { + callback = md; + md = null; + } + + // use native implementation if possible and not disabled, note that + // some node versions only support SHA-1, others allow digest to be changed + if(forge.util.isNodejs && !forge.options.usePureJavaScript && + crypto.pbkdf2 && (md === null || typeof md !== 'object') && + (crypto.pbkdf2Sync.length > 4 || (!md || md === 'sha1'))) { + if(typeof md !== 'string') { + // default prf to SHA-1 + md = 'sha1'; + } + p = Buffer.from(p, 'binary'); + s = Buffer.from(s, 'binary'); + if(!callback) { + if(crypto.pbkdf2Sync.length === 4) { + return crypto.pbkdf2Sync(p, s, c, dkLen).toString('binary'); + } + return crypto.pbkdf2Sync(p, s, c, dkLen, md).toString('binary'); + } + if(crypto.pbkdf2Sync.length === 4) { + return crypto.pbkdf2(p, s, c, dkLen, function(err, key) { + if(err) { + return callback(err); + } + callback(null, key.toString('binary')); + }); + } + return crypto.pbkdf2(p, s, c, dkLen, md, function(err, key) { + if(err) { + return callback(err); + } + callback(null, key.toString('binary')); + }); + } + + if(typeof md === 'undefined' || md === null) { + // default prf to SHA-1 + md = 'sha1'; + } + if(typeof md === 'string') { + if(!(md in forge.md.algorithms)) { + throw new Error('Unknown hash algorithm: ' + md); + } + md = forge.md[md].create(); + } + + var hLen = md.digestLength; + + /* 1. If dkLen > (2^32 - 1) * hLen, output "derived key too long" and + stop. */ + if(dkLen > (0xFFFFFFFF * hLen)) { + var err = new Error('Derived key is too long.'); + if(callback) { + return callback(err); + } + throw err; + } + + /* 2. Let len be the number of hLen-octet blocks in the derived key, + rounding up, and let r be the number of octets in the last + block: + + len = CEIL(dkLen / hLen), + r = dkLen - (len - 1) * hLen. */ + var len = Math.ceil(dkLen / hLen); + var r = dkLen - (len - 1) * hLen; + + /* 3. For each block of the derived key apply the function F defined + below to the password P, the salt S, the iteration count c, and + the block index to compute the block: + + T_1 = F(P, S, c, 1), + T_2 = F(P, S, c, 2), + ... + T_len = F(P, S, c, len), + + where the function F is defined as the exclusive-or sum of the + first c iterates of the underlying pseudorandom function PRF + applied to the password P and the concatenation of the salt S + and the block index i: + + F(P, S, c, i) = u_1 XOR u_2 XOR ... XOR u_c + + where + + u_1 = PRF(P, S || INT(i)), + u_2 = PRF(P, u_1), + ... + u_c = PRF(P, u_{c-1}). + + Here, INT(i) is a four-octet encoding of the integer i, most + significant octet first. */ + var prf = forge.hmac.create(); + prf.start(md, p); + var dk = ''; + var xor, u_c, u_c1; + + // sync version + if(!callback) { + for(var i = 1; i <= len; ++i) { + // PRF(P, S || INT(i)) (first iteration) + prf.start(null, null); + prf.update(s); + prf.update(forge.util.int32ToBytes(i)); + xor = u_c1 = prf.digest().getBytes(); + + // PRF(P, u_{c-1}) (other iterations) + for(var j = 2; j <= c; ++j) { + prf.start(null, null); + prf.update(u_c1); + u_c = prf.digest().getBytes(); + // F(p, s, c, i) + xor = forge.util.xorBytes(xor, u_c, hLen); + u_c1 = u_c; + } + + /* 4. Concatenate the blocks and extract the first dkLen octets to + produce a derived key DK: + + DK = T_1 || T_2 || ... || T_len<0..r-1> */ + dk += (i < len) ? xor : xor.substr(0, r); + } + /* 5. Output the derived key DK. */ + return dk; + } + + // async version + var i = 1, j; + function outer() { + if(i > len) { + // done + return callback(null, dk); + } + + // PRF(P, S || INT(i)) (first iteration) + prf.start(null, null); + prf.update(s); + prf.update(forge.util.int32ToBytes(i)); + xor = u_c1 = prf.digest().getBytes(); + + // PRF(P, u_{c-1}) (other iterations) + j = 2; + inner(); + } + + function inner() { + if(j <= c) { + prf.start(null, null); + prf.update(u_c1); + u_c = prf.digest().getBytes(); + // F(p, s, c, i) + xor = forge.util.xorBytes(xor, u_c, hLen); + u_c1 = u_c; + ++j; + return forge.util.setImmediate(inner); + } + + /* 4. Concatenate the blocks and extract the first dkLen octets to + produce a derived key DK: + + DK = T_1 || T_2 || ... || T_len<0..r-1> */ + dk += (i < len) ? xor : xor.substr(0, r); + + ++i; + outer(); + } + + outer(); +}; diff --git a/node_modules/node-forge/lib/pem.js b/node_modules/node-forge/lib/pem.js new file mode 100644 index 0000000..1992bc7 --- /dev/null +++ b/node_modules/node-forge/lib/pem.js @@ -0,0 +1,237 @@ +/** + * Javascript implementation of basic PEM (Privacy Enhanced Mail) algorithms. + * + * See: RFC 1421. + * + * @author Dave Longley + * + * Copyright (c) 2013-2014 Digital Bazaar, Inc. + * + * A Forge PEM object has the following fields: + * + * type: identifies the type of message (eg: "RSA PRIVATE KEY"). + * + * procType: identifies the type of processing performed on the message, + * it has two subfields: version and type, eg: 4,ENCRYPTED. + * + * contentDomain: identifies the type of content in the message, typically + * only uses the value: "RFC822". + * + * dekInfo: identifies the message encryption algorithm and mode and includes + * any parameters for the algorithm, it has two subfields: algorithm and + * parameters, eg: DES-CBC,F8143EDE5960C597. + * + * headers: contains all other PEM encapsulated headers -- where order is + * significant (for pairing data like recipient ID + key info). + * + * body: the binary-encoded body. + */ +var forge = require('./forge'); +require('./util'); + +// shortcut for pem API +var pem = module.exports = forge.pem = forge.pem || {}; + +/** + * Encodes (serializes) the given PEM object. + * + * @param msg the PEM message object to encode. + * @param options the options to use: + * maxline the maximum characters per line for the body, (default: 64). + * + * @return the PEM-formatted string. + */ +pem.encode = function(msg, options) { + options = options || {}; + var rval = '-----BEGIN ' + msg.type + '-----\r\n'; + + // encode special headers + var header; + if(msg.procType) { + header = { + name: 'Proc-Type', + values: [String(msg.procType.version), msg.procType.type] + }; + rval += foldHeader(header); + } + if(msg.contentDomain) { + header = {name: 'Content-Domain', values: [msg.contentDomain]}; + rval += foldHeader(header); + } + if(msg.dekInfo) { + header = {name: 'DEK-Info', values: [msg.dekInfo.algorithm]}; + if(msg.dekInfo.parameters) { + header.values.push(msg.dekInfo.parameters); + } + rval += foldHeader(header); + } + + if(msg.headers) { + // encode all other headers + for(var i = 0; i < msg.headers.length; ++i) { + rval += foldHeader(msg.headers[i]); + } + } + + // terminate header + if(msg.procType) { + rval += '\r\n'; + } + + // add body + rval += forge.util.encode64(msg.body, options.maxline || 64) + '\r\n'; + + rval += '-----END ' + msg.type + '-----\r\n'; + return rval; +}; + +/** + * Decodes (deserializes) all PEM messages found in the given string. + * + * @param str the PEM-formatted string to decode. + * + * @return the PEM message objects in an array. + */ +pem.decode = function(str) { + var rval = []; + + // split string into PEM messages (be lenient w/EOF on BEGIN line) + var rMessage = /\s*-----BEGIN ([A-Z0-9- ]+)-----\r?\n?([\x21-\x7e\s]+?(?:\r?\n\r?\n))?([:A-Za-z0-9+\/=\s]+?)-----END \1-----/g; + var rHeader = /([\x21-\x7e]+):\s*([\x21-\x7e\s^:]+)/; + var rCRLF = /\r?\n/; + var match; + while(true) { + match = rMessage.exec(str); + if(!match) { + break; + } + + // accept "NEW CERTIFICATE REQUEST" as "CERTIFICATE REQUEST" + // https://datatracker.ietf.org/doc/html/rfc7468#section-7 + var type = match[1]; + if(type === 'NEW CERTIFICATE REQUEST') { + type = 'CERTIFICATE REQUEST'; + } + + var msg = { + type: type, + procType: null, + contentDomain: null, + dekInfo: null, + headers: [], + body: forge.util.decode64(match[3]) + }; + rval.push(msg); + + // no headers + if(!match[2]) { + continue; + } + + // parse headers + var lines = match[2].split(rCRLF); + var li = 0; + while(match && li < lines.length) { + // get line, trim any rhs whitespace + var line = lines[li].replace(/\s+$/, ''); + + // RFC2822 unfold any following folded lines + for(var nl = li + 1; nl < lines.length; ++nl) { + var next = lines[nl]; + if(!/\s/.test(next[0])) { + break; + } + line += next; + li = nl; + } + + // parse header + match = line.match(rHeader); + if(match) { + var header = {name: match[1], values: []}; + var values = match[2].split(','); + for(var vi = 0; vi < values.length; ++vi) { + header.values.push(ltrim(values[vi])); + } + + // Proc-Type must be the first header + if(!msg.procType) { + if(header.name !== 'Proc-Type') { + throw new Error('Invalid PEM formatted message. The first ' + + 'encapsulated header must be "Proc-Type".'); + } else if(header.values.length !== 2) { + throw new Error('Invalid PEM formatted message. The "Proc-Type" ' + + 'header must have two subfields.'); + } + msg.procType = {version: values[0], type: values[1]}; + } else if(!msg.contentDomain && header.name === 'Content-Domain') { + // special-case Content-Domain + msg.contentDomain = values[0] || ''; + } else if(!msg.dekInfo && header.name === 'DEK-Info') { + // special-case DEK-Info + if(header.values.length === 0) { + throw new Error('Invalid PEM formatted message. The "DEK-Info" ' + + 'header must have at least one subfield.'); + } + msg.dekInfo = {algorithm: values[0], parameters: values[1] || null}; + } else { + msg.headers.push(header); + } + } + + ++li; + } + + if(msg.procType === 'ENCRYPTED' && !msg.dekInfo) { + throw new Error('Invalid PEM formatted message. The "DEK-Info" ' + + 'header must be present if "Proc-Type" is "ENCRYPTED".'); + } + } + + if(rval.length === 0) { + throw new Error('Invalid PEM formatted message.'); + } + + return rval; +}; + +function foldHeader(header) { + var rval = header.name + ': '; + + // ensure values with CRLF are folded + var values = []; + var insertSpace = function(match, $1) { + return ' ' + $1; + }; + for(var i = 0; i < header.values.length; ++i) { + values.push(header.values[i].replace(/^(\S+\r\n)/, insertSpace)); + } + rval += values.join(',') + '\r\n'; + + // do folding + var length = 0; + var candidate = -1; + for(var i = 0; i < rval.length; ++i, ++length) { + if(length > 65 && candidate !== -1) { + var insert = rval[candidate]; + if(insert === ',') { + ++candidate; + rval = rval.substr(0, candidate) + '\r\n ' + rval.substr(candidate); + } else { + rval = rval.substr(0, candidate) + + '\r\n' + insert + rval.substr(candidate + 1); + } + length = (i - candidate - 1); + candidate = -1; + ++i; + } else if(rval[i] === ' ' || rval[i] === '\t' || rval[i] === ',') { + candidate = i; + } + } + + return rval; +} + +function ltrim(str) { + return str.replace(/^\s+/, ''); +} diff --git a/node_modules/node-forge/lib/pkcs1.js b/node_modules/node-forge/lib/pkcs1.js new file mode 100644 index 0000000..a3af924 --- /dev/null +++ b/node_modules/node-forge/lib/pkcs1.js @@ -0,0 +1,276 @@ +/** + * Partial implementation of PKCS#1 v2.2: RSA-OEAP + * + * Modified but based on the following MIT and BSD licensed code: + * + * https://github.com/kjur/jsjws/blob/master/rsa.js: + * + * The 'jsjws'(JSON Web Signature JavaScript Library) License + * + * Copyright (c) 2012 Kenji Urushima + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * http://webrsa.cvs.sourceforge.net/viewvc/webrsa/Client/RSAES-OAEP.js?content-type=text%2Fplain: + * + * RSAES-OAEP.js + * $Id: RSAES-OAEP.js,v 1.1.1.1 2003/03/19 15:37:20 ellispritchard Exp $ + * JavaScript Implementation of PKCS #1 v2.1 RSA CRYPTOGRAPHY STANDARD (RSA Laboratories, June 14, 2002) + * Copyright (C) Ellis Pritchard, Guardian Unlimited 2003. + * Contact: ellis@nukinetics.com + * Distributed under the BSD License. + * + * Official documentation: http://www.rsa.com/rsalabs/node.asp?id=2125 + * + * @author Evan Jones (http://evanjones.ca/) + * @author Dave Longley + * + * Copyright (c) 2013-2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); +require('./random'); +require('./sha1'); + +// shortcut for PKCS#1 API +var pkcs1 = module.exports = forge.pkcs1 = forge.pkcs1 || {}; + +/** + * Encode the given RSAES-OAEP message (M) using key, with optional label (L) + * and seed. + * + * This method does not perform RSA encryption, it only encodes the message + * using RSAES-OAEP. + * + * @param key the RSA key to use. + * @param message the message to encode. + * @param options the options to use: + * label an optional label to use. + * seed the seed to use. + * md the message digest object to use, undefined for SHA-1. + * mgf1 optional mgf1 parameters: + * md the message digest object to use for MGF1. + * + * @return the encoded message bytes. + */ +pkcs1.encode_rsa_oaep = function(key, message, options) { + // parse arguments + var label; + var seed; + var md; + var mgf1Md; + // legacy args (label, seed, md) + if(typeof options === 'string') { + label = options; + seed = arguments[3] || undefined; + md = arguments[4] || undefined; + } else if(options) { + label = options.label || undefined; + seed = options.seed || undefined; + md = options.md || undefined; + if(options.mgf1 && options.mgf1.md) { + mgf1Md = options.mgf1.md; + } + } + + // default OAEP to SHA-1 message digest + if(!md) { + md = forge.md.sha1.create(); + } else { + md.start(); + } + + // default MGF-1 to same as OAEP + if(!mgf1Md) { + mgf1Md = md; + } + + // compute length in bytes and check output + var keyLength = Math.ceil(key.n.bitLength() / 8); + var maxLength = keyLength - 2 * md.digestLength - 2; + if(message.length > maxLength) { + var error = new Error('RSAES-OAEP input message length is too long.'); + error.length = message.length; + error.maxLength = maxLength; + throw error; + } + + if(!label) { + label = ''; + } + md.update(label, 'raw'); + var lHash = md.digest(); + + var PS = ''; + var PS_length = maxLength - message.length; + for(var i = 0; i < PS_length; i++) { + PS += '\x00'; + } + + var DB = lHash.getBytes() + PS + '\x01' + message; + + if(!seed) { + seed = forge.random.getBytes(md.digestLength); + } else if(seed.length !== md.digestLength) { + var error = new Error('Invalid RSAES-OAEP seed. The seed length must ' + + 'match the digest length.'); + error.seedLength = seed.length; + error.digestLength = md.digestLength; + throw error; + } + + var dbMask = rsa_mgf1(seed, keyLength - md.digestLength - 1, mgf1Md); + var maskedDB = forge.util.xorBytes(DB, dbMask, DB.length); + + var seedMask = rsa_mgf1(maskedDB, md.digestLength, mgf1Md); + var maskedSeed = forge.util.xorBytes(seed, seedMask, seed.length); + + // return encoded message + return '\x00' + maskedSeed + maskedDB; +}; + +/** + * Decode the given RSAES-OAEP encoded message (EM) using key, with optional + * label (L). + * + * This method does not perform RSA decryption, it only decodes the message + * using RSAES-OAEP. + * + * @param key the RSA key to use. + * @param em the encoded message to decode. + * @param options the options to use: + * label an optional label to use. + * md the message digest object to use for OAEP, undefined for SHA-1. + * mgf1 optional mgf1 parameters: + * md the message digest object to use for MGF1. + * + * @return the decoded message bytes. + */ +pkcs1.decode_rsa_oaep = function(key, em, options) { + // parse args + var label; + var md; + var mgf1Md; + // legacy args + if(typeof options === 'string') { + label = options; + md = arguments[3] || undefined; + } else if(options) { + label = options.label || undefined; + md = options.md || undefined; + if(options.mgf1 && options.mgf1.md) { + mgf1Md = options.mgf1.md; + } + } + + // compute length in bytes + var keyLength = Math.ceil(key.n.bitLength() / 8); + + if(em.length !== keyLength) { + var error = new Error('RSAES-OAEP encoded message length is invalid.'); + error.length = em.length; + error.expectedLength = keyLength; + throw error; + } + + // default OAEP to SHA-1 message digest + if(md === undefined) { + md = forge.md.sha1.create(); + } else { + md.start(); + } + + // default MGF-1 to same as OAEP + if(!mgf1Md) { + mgf1Md = md; + } + + if(keyLength < 2 * md.digestLength + 2) { + throw new Error('RSAES-OAEP key is too short for the hash function.'); + } + + if(!label) { + label = ''; + } + md.update(label, 'raw'); + var lHash = md.digest().getBytes(); + + // split the message into its parts + var y = em.charAt(0); + var maskedSeed = em.substring(1, md.digestLength + 1); + var maskedDB = em.substring(1 + md.digestLength); + + var seedMask = rsa_mgf1(maskedDB, md.digestLength, mgf1Md); + var seed = forge.util.xorBytes(maskedSeed, seedMask, maskedSeed.length); + + var dbMask = rsa_mgf1(seed, keyLength - md.digestLength - 1, mgf1Md); + var db = forge.util.xorBytes(maskedDB, dbMask, maskedDB.length); + + var lHashPrime = db.substring(0, md.digestLength); + + // constant time check that all values match what is expected + var error = (y !== '\x00'); + + // constant time check lHash vs lHashPrime + for(var i = 0; i < md.digestLength; ++i) { + error |= (lHash.charAt(i) !== lHashPrime.charAt(i)); + } + + // "constant time" find the 0x1 byte separating the padding (zeros) from the + // message + // TODO: It must be possible to do this in a better/smarter way? + var in_ps = 1; + var index = md.digestLength; + for(var j = md.digestLength; j < db.length; j++) { + var code = db.charCodeAt(j); + + var is_0 = (code & 0x1) ^ 0x1; + + // non-zero if not 0 or 1 in the ps section + var error_mask = in_ps ? 0xfffe : 0x0000; + error |= (code & error_mask); + + // latch in_ps to zero after we find 0x1 + in_ps = in_ps & is_0; + index += in_ps; + } + + if(error || db.charCodeAt(index) !== 0x1) { + throw new Error('Invalid RSAES-OAEP padding.'); + } + + return db.substring(index + 1); +}; + +function rsa_mgf1(seed, maskLength, hash) { + // default to SHA-1 message digest + if(!hash) { + hash = forge.md.sha1.create(); + } + var t = ''; + var count = Math.ceil(maskLength / hash.digestLength); + for(var i = 0; i < count; ++i) { + var c = String.fromCharCode( + (i >> 24) & 0xFF, (i >> 16) & 0xFF, (i >> 8) & 0xFF, i & 0xFF); + hash.start(); + hash.update(seed + c); + t += hash.digest().getBytes(); + } + return t.substring(0, maskLength); +} diff --git a/node_modules/node-forge/lib/pkcs12.js b/node_modules/node-forge/lib/pkcs12.js new file mode 100644 index 0000000..cd06c49 --- /dev/null +++ b/node_modules/node-forge/lib/pkcs12.js @@ -0,0 +1,1074 @@ +/** + * Javascript implementation of PKCS#12. + * + * @author Dave Longley + * @author Stefan Siegl + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. + * Copyright (c) 2012 Stefan Siegl + * + * The ASN.1 representation of PKCS#12 is as follows + * (see ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-12/pkcs-12-tc1.pdf for details) + * + * PFX ::= SEQUENCE { + * version INTEGER {v3(3)}(v3,...), + * authSafe ContentInfo, + * macData MacData OPTIONAL + * } + * + * MacData ::= SEQUENCE { + * mac DigestInfo, + * macSalt OCTET STRING, + * iterations INTEGER DEFAULT 1 + * } + * Note: The iterations default is for historical reasons and its use is + * deprecated. A higher value, like 1024, is recommended. + * + * DigestInfo is defined in PKCS#7 as follows: + * + * DigestInfo ::= SEQUENCE { + * digestAlgorithm DigestAlgorithmIdentifier, + * digest Digest + * } + * + * DigestAlgorithmIdentifier ::= AlgorithmIdentifier + * + * The AlgorithmIdentifier contains an Object Identifier (OID) and parameters + * for the algorithm, if any. In the case of SHA1 there is none. + * + * AlgorithmIdentifer ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters ANY DEFINED BY algorithm OPTIONAL + * } + * + * Digest ::= OCTET STRING + * + * + * ContentInfo ::= SEQUENCE { + * contentType ContentType, + * content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL + * } + * + * ContentType ::= OBJECT IDENTIFIER + * + * AuthenticatedSafe ::= SEQUENCE OF ContentInfo + * -- Data if unencrypted + * -- EncryptedData if password-encrypted + * -- EnvelopedData if public key-encrypted + * + * + * SafeContents ::= SEQUENCE OF SafeBag + * + * SafeBag ::= SEQUENCE { + * bagId BAG-TYPE.&id ({PKCS12BagSet}) + * bagValue [0] EXPLICIT BAG-TYPE.&Type({PKCS12BagSet}{@bagId}), + * bagAttributes SET OF PKCS12Attribute OPTIONAL + * } + * + * PKCS12Attribute ::= SEQUENCE { + * attrId ATTRIBUTE.&id ({PKCS12AttrSet}), + * attrValues SET OF ATTRIBUTE.&Type ({PKCS12AttrSet}{@attrId}) + * } -- This type is compatible with the X.500 type 'Attribute' + * + * PKCS12AttrSet ATTRIBUTE ::= { + * friendlyName | -- from PKCS #9 + * localKeyId, -- from PKCS #9 + * ... -- Other attributes are allowed + * } + * + * CertBag ::= SEQUENCE { + * certId BAG-TYPE.&id ({CertTypes}), + * certValue [0] EXPLICIT BAG-TYPE.&Type ({CertTypes}{@certId}) + * } + * + * x509Certificate BAG-TYPE ::= {OCTET STRING IDENTIFIED BY {certTypes 1}} + * -- DER-encoded X.509 certificate stored in OCTET STRING + * + * sdsiCertificate BAG-TYPE ::= {IA5String IDENTIFIED BY {certTypes 2}} + * -- Base64-encoded SDSI certificate stored in IA5String + * + * CertTypes BAG-TYPE ::= { + * x509Certificate | + * sdsiCertificate, + * ... -- For future extensions + * } + */ +var forge = require('./forge'); +require('./asn1'); +require('./hmac'); +require('./oids'); +require('./pkcs7asn1'); +require('./pbe'); +require('./random'); +require('./rsa'); +require('./sha1'); +require('./util'); +require('./x509'); + +// shortcut for asn.1 & PKI API +var asn1 = forge.asn1; +var pki = forge.pki; + +// shortcut for PKCS#12 API +var p12 = module.exports = forge.pkcs12 = forge.pkcs12 || {}; + +var contentInfoValidator = { + name: 'ContentInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, // a ContentInfo + constructed: true, + value: [{ + name: 'ContentInfo.contentType', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'contentType' + }, { + name: 'ContentInfo.content', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + constructed: true, + captureAsn1: 'content' + }] +}; + +var pfxValidator = { + name: 'PFX', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'PFX.version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'version' + }, + contentInfoValidator, { + name: 'PFX.macData', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + optional: true, + captureAsn1: 'mac', + value: [{ + name: 'PFX.macData.mac', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, // DigestInfo + constructed: true, + value: [{ + name: 'PFX.macData.mac.digestAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, // DigestAlgorithmIdentifier + constructed: true, + value: [{ + name: 'PFX.macData.mac.digestAlgorithm.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'macAlgorithm' + }, { + name: 'PFX.macData.mac.digestAlgorithm.parameters', + tagClass: asn1.Class.UNIVERSAL, + captureAsn1: 'macAlgorithmParameters' + }] + }, { + name: 'PFX.macData.mac.digest', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'macDigest' + }] + }, { + name: 'PFX.macData.macSalt', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'macSalt' + }, { + name: 'PFX.macData.iterations', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + optional: true, + capture: 'macIterations' + }] + }] +}; + +var safeBagValidator = { + name: 'SafeBag', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'SafeBag.bagId', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'bagId' + }, { + name: 'SafeBag.bagValue', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + constructed: true, + captureAsn1: 'bagValue' + }, { + name: 'SafeBag.bagAttributes', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SET, + constructed: true, + optional: true, + capture: 'bagAttributes' + }] +}; + +var attributeValidator = { + name: 'Attribute', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'Attribute.attrId', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'oid' + }, { + name: 'Attribute.attrValues', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SET, + constructed: true, + capture: 'values' + }] +}; + +var certBagValidator = { + name: 'CertBag', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'CertBag.certId', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'certId' + }, { + name: 'CertBag.certValue', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + constructed: true, + /* So far we only support X.509 certificates (which are wrapped in + an OCTET STRING, hence hard code that here). */ + value: [{ + name: 'CertBag.certValue[0]', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Class.OCTETSTRING, + constructed: false, + capture: 'cert' + }] + }] +}; + +/** + * Search SafeContents structure for bags with matching attributes. + * + * The search can optionally be narrowed by a certain bag type. + * + * @param safeContents the SafeContents structure to search in. + * @param attrName the name of the attribute to compare against. + * @param attrValue the attribute value to search for. + * @param [bagType] bag type to narrow search by. + * + * @return an array of matching bags. + */ +function _getBagsByAttribute(safeContents, attrName, attrValue, bagType) { + var result = []; + + for(var i = 0; i < safeContents.length; i++) { + for(var j = 0; j < safeContents[i].safeBags.length; j++) { + var bag = safeContents[i].safeBags[j]; + if(bagType !== undefined && bag.type !== bagType) { + continue; + } + // only filter by bag type, no attribute specified + if(attrName === null) { + result.push(bag); + continue; + } + if(bag.attributes[attrName] !== undefined && + bag.attributes[attrName].indexOf(attrValue) >= 0) { + result.push(bag); + } + } + } + + return result; +} + +/** + * Converts a PKCS#12 PFX in ASN.1 notation into a PFX object. + * + * @param obj The PKCS#12 PFX in ASN.1 notation. + * @param strict true to use strict DER decoding, false not to (default: true). + * @param {String} password Password to decrypt with (optional). + * + * @return PKCS#12 PFX object. + */ +p12.pkcs12FromAsn1 = function(obj, strict, password) { + // handle args + if(typeof strict === 'string') { + password = strict; + strict = true; + } else if(strict === undefined) { + strict = true; + } + + // validate PFX and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(obj, pfxValidator, capture, errors)) { + var error = new Error('Cannot read PKCS#12 PFX. ' + + 'ASN.1 object is not an PKCS#12 PFX.'); + error.errors = error; + throw error; + } + + var pfx = { + version: capture.version.charCodeAt(0), + safeContents: [], + + /** + * Gets bags with matching attributes. + * + * @param filter the attributes to filter by: + * [localKeyId] the localKeyId to search for. + * [localKeyIdHex] the localKeyId in hex to search for. + * [friendlyName] the friendly name to search for. + * [bagType] bag type to narrow each attribute search by. + * + * @return a map of attribute type to an array of matching bags or, if no + * attribute was given but a bag type, the map key will be the + * bag type. + */ + getBags: function(filter) { + var rval = {}; + + var localKeyId; + if('localKeyId' in filter) { + localKeyId = filter.localKeyId; + } else if('localKeyIdHex' in filter) { + localKeyId = forge.util.hexToBytes(filter.localKeyIdHex); + } + + // filter on bagType only + if(localKeyId === undefined && !('friendlyName' in filter) && + 'bagType' in filter) { + rval[filter.bagType] = _getBagsByAttribute( + pfx.safeContents, null, null, filter.bagType); + } + + if(localKeyId !== undefined) { + rval.localKeyId = _getBagsByAttribute( + pfx.safeContents, 'localKeyId', + localKeyId, filter.bagType); + } + if('friendlyName' in filter) { + rval.friendlyName = _getBagsByAttribute( + pfx.safeContents, 'friendlyName', + filter.friendlyName, filter.bagType); + } + + return rval; + }, + + /** + * DEPRECATED: use getBags() instead. + * + * Get bags with matching friendlyName attribute. + * + * @param friendlyName the friendly name to search for. + * @param [bagType] bag type to narrow search by. + * + * @return an array of bags with matching friendlyName attribute. + */ + getBagsByFriendlyName: function(friendlyName, bagType) { + return _getBagsByAttribute( + pfx.safeContents, 'friendlyName', friendlyName, bagType); + }, + + /** + * DEPRECATED: use getBags() instead. + * + * Get bags with matching localKeyId attribute. + * + * @param localKeyId the localKeyId to search for. + * @param [bagType] bag type to narrow search by. + * + * @return an array of bags with matching localKeyId attribute. + */ + getBagsByLocalKeyId: function(localKeyId, bagType) { + return _getBagsByAttribute( + pfx.safeContents, 'localKeyId', localKeyId, bagType); + } + }; + + if(capture.version.charCodeAt(0) !== 3) { + var error = new Error('PKCS#12 PFX of version other than 3 not supported.'); + error.version = capture.version.charCodeAt(0); + throw error; + } + + if(asn1.derToOid(capture.contentType) !== pki.oids.data) { + var error = new Error('Only PKCS#12 PFX in password integrity mode supported.'); + error.oid = asn1.derToOid(capture.contentType); + throw error; + } + + var data = capture.content.value[0]; + if(data.tagClass !== asn1.Class.UNIVERSAL || + data.type !== asn1.Type.OCTETSTRING) { + throw new Error('PKCS#12 authSafe content data is not an OCTET STRING.'); + } + data = _decodePkcs7Data(data); + + // check for MAC + if(capture.mac) { + var md = null; + var macKeyBytes = 0; + var macAlgorithm = asn1.derToOid(capture.macAlgorithm); + switch(macAlgorithm) { + case pki.oids.sha1: + md = forge.md.sha1.create(); + macKeyBytes = 20; + break; + case pki.oids.sha256: + md = forge.md.sha256.create(); + macKeyBytes = 32; + break; + case pki.oids.sha384: + md = forge.md.sha384.create(); + macKeyBytes = 48; + break; + case pki.oids.sha512: + md = forge.md.sha512.create(); + macKeyBytes = 64; + break; + case pki.oids.md5: + md = forge.md.md5.create(); + macKeyBytes = 16; + break; + } + if(md === null) { + throw new Error('PKCS#12 uses unsupported MAC algorithm: ' + macAlgorithm); + } + + // verify MAC (iterations default to 1) + var macSalt = new forge.util.ByteBuffer(capture.macSalt); + var macIterations = (('macIterations' in capture) ? + parseInt(forge.util.bytesToHex(capture.macIterations), 16) : 1); + var macKey = p12.generateKey( + password, macSalt, 3, macIterations, macKeyBytes, md); + var mac = forge.hmac.create(); + mac.start(md, macKey); + mac.update(data.value); + var macValue = mac.getMac(); + if(macValue.getBytes() !== capture.macDigest) { + throw new Error('PKCS#12 MAC could not be verified. Invalid password?'); + } + } + + _decodeAuthenticatedSafe(pfx, data.value, strict, password); + return pfx; +}; + +/** + * Decodes PKCS#7 Data. PKCS#7 (RFC 2315) defines "Data" as an OCTET STRING, + * but it is sometimes an OCTET STRING that is composed/constructed of chunks, + * each its own OCTET STRING. This is BER-encoding vs. DER-encoding. This + * function transforms this corner-case into the usual simple, + * non-composed/constructed OCTET STRING. + * + * This function may be moved to ASN.1 at some point to better deal with + * more BER-encoding issues, should they arise. + * + * @param data the ASN.1 Data object to transform. + */ +function _decodePkcs7Data(data) { + // handle special case of "chunked" data content: an octet string composed + // of other octet strings + if(data.composed || data.constructed) { + var value = forge.util.createBuffer(); + for(var i = 0; i < data.value.length; ++i) { + value.putBytes(data.value[i].value); + } + data.composed = data.constructed = false; + data.value = value.getBytes(); + } + return data; +} + +/** + * Decode PKCS#12 AuthenticatedSafe (BER encoded) into PFX object. + * + * The AuthenticatedSafe is a BER-encoded SEQUENCE OF ContentInfo. + * + * @param pfx The PKCS#12 PFX object to fill. + * @param {String} authSafe BER-encoded AuthenticatedSafe. + * @param strict true to use strict DER decoding, false not to. + * @param {String} password Password to decrypt with (optional). + */ +function _decodeAuthenticatedSafe(pfx, authSafe, strict, password) { + authSafe = asn1.fromDer(authSafe, strict); /* actually it's BER encoded */ + + if(authSafe.tagClass !== asn1.Class.UNIVERSAL || + authSafe.type !== asn1.Type.SEQUENCE || + authSafe.constructed !== true) { + throw new Error('PKCS#12 AuthenticatedSafe expected to be a ' + + 'SEQUENCE OF ContentInfo'); + } + + for(var i = 0; i < authSafe.value.length; i++) { + var contentInfo = authSafe.value[i]; + + // validate contentInfo and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(contentInfo, contentInfoValidator, capture, errors)) { + var error = new Error('Cannot read ContentInfo.'); + error.errors = errors; + throw error; + } + + var obj = { + encrypted: false + }; + var safeContents = null; + var data = capture.content.value[0]; + switch(asn1.derToOid(capture.contentType)) { + case pki.oids.data: + if(data.tagClass !== asn1.Class.UNIVERSAL || + data.type !== asn1.Type.OCTETSTRING) { + throw new Error('PKCS#12 SafeContents Data is not an OCTET STRING.'); + } + safeContents = _decodePkcs7Data(data).value; + break; + case pki.oids.encryptedData: + safeContents = _decryptSafeContents(data, password); + obj.encrypted = true; + break; + default: + var error = new Error('Unsupported PKCS#12 contentType.'); + error.contentType = asn1.derToOid(capture.contentType); + throw error; + } + + obj.safeBags = _decodeSafeContents(safeContents, strict, password); + pfx.safeContents.push(obj); + } +} + +/** + * Decrypt PKCS#7 EncryptedData structure. + * + * @param data ASN.1 encoded EncryptedContentInfo object. + * @param password The user-provided password. + * + * @return The decrypted SafeContents (ASN.1 object). + */ +function _decryptSafeContents(data, password) { + var capture = {}; + var errors = []; + if(!asn1.validate( + data, forge.pkcs7.asn1.encryptedDataValidator, capture, errors)) { + var error = new Error('Cannot read EncryptedContentInfo.'); + error.errors = errors; + throw error; + } + + var oid = asn1.derToOid(capture.contentType); + if(oid !== pki.oids.data) { + var error = new Error( + 'PKCS#12 EncryptedContentInfo ContentType is not Data.'); + error.oid = oid; + throw error; + } + + // get cipher + oid = asn1.derToOid(capture.encAlgorithm); + var cipher = pki.pbe.getCipher(oid, capture.encParameter, password); + + // get encrypted data + var encryptedContentAsn1 = _decodePkcs7Data(capture.encryptedContentAsn1); + var encrypted = forge.util.createBuffer(encryptedContentAsn1.value); + + cipher.update(encrypted); + if(!cipher.finish()) { + throw new Error('Failed to decrypt PKCS#12 SafeContents.'); + } + + return cipher.output.getBytes(); +} + +/** + * Decode PKCS#12 SafeContents (BER-encoded) into array of Bag objects. + * + * The safeContents is a BER-encoded SEQUENCE OF SafeBag. + * + * @param {String} safeContents BER-encoded safeContents. + * @param strict true to use strict DER decoding, false not to. + * @param {String} password Password to decrypt with (optional). + * + * @return {Array} Array of Bag objects. + */ +function _decodeSafeContents(safeContents, strict, password) { + // if strict and no safe contents, return empty safes + if(!strict && safeContents.length === 0) { + return []; + } + + // actually it's BER-encoded + safeContents = asn1.fromDer(safeContents, strict); + + if(safeContents.tagClass !== asn1.Class.UNIVERSAL || + safeContents.type !== asn1.Type.SEQUENCE || + safeContents.constructed !== true) { + throw new Error( + 'PKCS#12 SafeContents expected to be a SEQUENCE OF SafeBag.'); + } + + var res = []; + for(var i = 0; i < safeContents.value.length; i++) { + var safeBag = safeContents.value[i]; + + // validate SafeBag and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(safeBag, safeBagValidator, capture, errors)) { + var error = new Error('Cannot read SafeBag.'); + error.errors = errors; + throw error; + } + + /* Create bag object and push to result array. */ + var bag = { + type: asn1.derToOid(capture.bagId), + attributes: _decodeBagAttributes(capture.bagAttributes) + }; + res.push(bag); + + var validator, decoder; + var bagAsn1 = capture.bagValue.value[0]; + switch(bag.type) { + case pki.oids.pkcs8ShroudedKeyBag: + /* bagAsn1 has a EncryptedPrivateKeyInfo, which we need to decrypt. + Afterwards we can handle it like a keyBag, + which is a PrivateKeyInfo. */ + bagAsn1 = pki.decryptPrivateKeyInfo(bagAsn1, password); + if(bagAsn1 === null) { + throw new Error( + 'Unable to decrypt PKCS#8 ShroudedKeyBag, wrong password?'); + } + + /* fall through */ + case pki.oids.keyBag: + /* A PKCS#12 keyBag is a simple PrivateKeyInfo as understood by our + PKI module, hence we don't have to do validation/capturing here, + just pass what we already got. */ + try { + bag.key = pki.privateKeyFromAsn1(bagAsn1); + } catch(e) { + // ignore unknown key type, pass asn1 value + bag.key = null; + bag.asn1 = bagAsn1; + } + continue; /* Nothing more to do. */ + + case pki.oids.certBag: + /* A PKCS#12 certBag can wrap both X.509 and sdsi certificates. + Therefore put the SafeBag content through another validator to + capture the fields. Afterwards check & store the results. */ + validator = certBagValidator; + decoder = function() { + if(asn1.derToOid(capture.certId) !== pki.oids.x509Certificate) { + var error = new Error( + 'Unsupported certificate type, only X.509 supported.'); + error.oid = asn1.derToOid(capture.certId); + throw error; + } + + // true=produce cert hash + var certAsn1 = asn1.fromDer(capture.cert, strict); + try { + bag.cert = pki.certificateFromAsn1(certAsn1, true); + } catch(e) { + // ignore unknown cert type, pass asn1 value + bag.cert = null; + bag.asn1 = certAsn1; + } + }; + break; + + default: + var error = new Error('Unsupported PKCS#12 SafeBag type.'); + error.oid = bag.type; + throw error; + } + + /* Validate SafeBag value (i.e. CertBag, etc.) and capture data if needed. */ + if(validator !== undefined && + !asn1.validate(bagAsn1, validator, capture, errors)) { + var error = new Error('Cannot read PKCS#12 ' + validator.name); + error.errors = errors; + throw error; + } + + /* Call decoder function from above to store the results. */ + decoder(); + } + + return res; +} + +/** + * Decode PKCS#12 SET OF PKCS12Attribute into JavaScript object. + * + * @param attributes SET OF PKCS12Attribute (ASN.1 object). + * + * @return the decoded attributes. + */ +function _decodeBagAttributes(attributes) { + var decodedAttrs = {}; + + if(attributes !== undefined) { + for(var i = 0; i < attributes.length; ++i) { + var capture = {}; + var errors = []; + if(!asn1.validate(attributes[i], attributeValidator, capture, errors)) { + var error = new Error('Cannot read PKCS#12 BagAttribute.'); + error.errors = errors; + throw error; + } + + var oid = asn1.derToOid(capture.oid); + if(pki.oids[oid] === undefined) { + // unsupported attribute type, ignore. + continue; + } + + decodedAttrs[pki.oids[oid]] = []; + for(var j = 0; j < capture.values.length; ++j) { + decodedAttrs[pki.oids[oid]].push(capture.values[j].value); + } + } + } + + return decodedAttrs; +} + +/** + * Wraps a private key and certificate in a PKCS#12 PFX wrapper. If a + * password is provided then the private key will be encrypted. + * + * An entire certificate chain may also be included. To do this, pass + * an array for the "cert" parameter where the first certificate is + * the one that is paired with the private key and each subsequent one + * verifies the previous one. The certificates may be in PEM format or + * have been already parsed by Forge. + * + * @todo implement password-based-encryption for the whole package + * + * @param key the private key. + * @param cert the certificate (may be an array of certificates in order + * to specify a certificate chain). + * @param password the password to use, null for none. + * @param options: + * algorithm the encryption algorithm to use + * ('aes128', 'aes192', 'aes256', '3des'), defaults to 'aes128'. + * count the iteration count to use. + * saltSize the salt size to use. + * useMac true to include a MAC, false not to, defaults to true. + * localKeyId the local key ID to use, in hex. + * friendlyName the friendly name to use. + * generateLocalKeyId true to generate a random local key ID, + * false not to, defaults to true. + * + * @return the PKCS#12 PFX ASN.1 object. + */ +p12.toPkcs12Asn1 = function(key, cert, password, options) { + // set default options + options = options || {}; + options.saltSize = options.saltSize || 8; + options.count = options.count || 2048; + options.algorithm = options.algorithm || options.encAlgorithm || 'aes128'; + if(!('useMac' in options)) { + options.useMac = true; + } + if(!('localKeyId' in options)) { + options.localKeyId = null; + } + if(!('generateLocalKeyId' in options)) { + options.generateLocalKeyId = true; + } + + var localKeyId = options.localKeyId; + var bagAttrs; + if(localKeyId !== null) { + localKeyId = forge.util.hexToBytes(localKeyId); + } else if(options.generateLocalKeyId) { + // use SHA-1 of paired cert, if available + if(cert) { + var pairedCert = forge.util.isArray(cert) ? cert[0] : cert; + if(typeof pairedCert === 'string') { + pairedCert = pki.certificateFromPem(pairedCert); + } + var sha1 = forge.md.sha1.create(); + sha1.update(asn1.toDer(pki.certificateToAsn1(pairedCert)).getBytes()); + localKeyId = sha1.digest().getBytes(); + } else { + // FIXME: consider using SHA-1 of public key (which can be generated + // from private key components), see: cert.generateSubjectKeyIdentifier + // generate random bytes + localKeyId = forge.random.getBytes(20); + } + } + + var attrs = []; + if(localKeyId !== null) { + attrs.push( + // localKeyID + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // attrId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.localKeyId).getBytes()), + // attrValues + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + localKeyId) + ]) + ])); + } + if('friendlyName' in options) { + attrs.push( + // friendlyName + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // attrId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.friendlyName).getBytes()), + // attrValues + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BMPSTRING, false, + options.friendlyName) + ]) + ])); + } + + if(attrs.length > 0) { + bagAttrs = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, attrs); + } + + // collect contents for AuthenticatedSafe + var contents = []; + + // create safe bag(s) for certificate chain + var chain = []; + if(cert !== null) { + if(forge.util.isArray(cert)) { + chain = cert; + } else { + chain = [cert]; + } + } + + var certSafeBags = []; + for(var i = 0; i < chain.length; ++i) { + // convert cert from PEM as necessary + cert = chain[i]; + if(typeof cert === 'string') { + cert = pki.certificateFromPem(cert); + } + + // SafeBag + var certBagAttrs = (i === 0) ? bagAttrs : undefined; + var certAsn1 = pki.certificateToAsn1(cert); + var certSafeBag = + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // bagId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.certBag).getBytes()), + // bagValue + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + // CertBag + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // certId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.x509Certificate).getBytes()), + // certValue (x509Certificate) + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(certAsn1).getBytes()) + ])])]), + // bagAttributes (OPTIONAL) + certBagAttrs + ]); + certSafeBags.push(certSafeBag); + } + + if(certSafeBags.length > 0) { + // SafeContents + var certSafeContents = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, certSafeBags); + + // ContentInfo + var certCI = + // PKCS#7 ContentInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // contentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + // OID for the content type is 'data' + asn1.oidToDer(pki.oids.data).getBytes()), + // content + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(certSafeContents).getBytes()) + ]) + ]); + contents.push(certCI); + } + + // create safe contents for private key + var keyBag = null; + if(key !== null) { + // SafeBag + var pkAsn1 = pki.wrapRsaPrivateKey(pki.privateKeyToAsn1(key)); + if(password === null) { + // no encryption + keyBag = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // bagId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.keyBag).getBytes()), + // bagValue + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + // PrivateKeyInfo + pkAsn1 + ]), + // bagAttributes (OPTIONAL) + bagAttrs + ]); + } else { + // encrypted PrivateKeyInfo + keyBag = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // bagId + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.pkcs8ShroudedKeyBag).getBytes()), + // bagValue + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + // EncryptedPrivateKeyInfo + pki.encryptPrivateKeyInfo(pkAsn1, password, options) + ]), + // bagAttributes (OPTIONAL) + bagAttrs + ]); + } + + // SafeContents + var keySafeContents = + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [keyBag]); + + // ContentInfo + var keyCI = + // PKCS#7 ContentInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // contentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + // OID for the content type is 'data' + asn1.oidToDer(pki.oids.data).getBytes()), + // content + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(keySafeContents).getBytes()) + ]) + ]); + contents.push(keyCI); + } + + // create AuthenticatedSafe by stringing together the contents + var safe = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, contents); + + var macData; + if(options.useMac) { + // MacData + var sha1 = forge.md.sha1.create(); + var macSalt = new forge.util.ByteBuffer( + forge.random.getBytes(options.saltSize)); + var count = options.count; + // 160-bit key + var key = p12.generateKey(password, macSalt, 3, count, 20); + var mac = forge.hmac.create(); + mac.start(sha1, key); + mac.update(asn1.toDer(safe).getBytes()); + var macValue = mac.getMac(); + macData = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // mac DigestInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // digestAlgorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm = SHA-1 + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.sha1).getBytes()), + // parameters = Null + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]), + // digest + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, + false, macValue.getBytes()) + ]), + // macSalt OCTET STRING + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, macSalt.getBytes()), + // iterations INTEGER (XXX: Only support count < 65536) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(count).getBytes() + ) + ]); + } + + // PFX + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // version (3) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(3).getBytes()), + // PKCS#7 ContentInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // contentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + // OID for the content type is 'data' + asn1.oidToDer(pki.oids.data).getBytes()), + // content + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(safe).getBytes()) + ]) + ]), + macData + ]); +}; + +/** + * Derives a PKCS#12 key. + * + * @param password the password to derive the key material from, null or + * undefined for none. + * @param salt the salt, as a ByteBuffer, to use. + * @param id the PKCS#12 ID byte (1 = key material, 2 = IV, 3 = MAC). + * @param iter the iteration count. + * @param n the number of bytes to derive from the password. + * @param md the message digest to use, defaults to SHA-1. + * + * @return a ByteBuffer with the bytes derived from the password. + */ +p12.generateKey = forge.pbe.generatePkcs12Key; diff --git a/node_modules/node-forge/lib/pkcs7.js b/node_modules/node-forge/lib/pkcs7.js new file mode 100644 index 0000000..3a5d845 --- /dev/null +++ b/node_modules/node-forge/lib/pkcs7.js @@ -0,0 +1,1260 @@ +/** + * Javascript implementation of PKCS#7 v1.5. + * + * @author Stefan Siegl + * @author Dave Longley + * + * Copyright (c) 2012 Stefan Siegl + * Copyright (c) 2012-2015 Digital Bazaar, Inc. + * + * Currently this implementation only supports ContentType of EnvelopedData, + * EncryptedData, or SignedData at the root level. The top level elements may + * contain only a ContentInfo of ContentType Data, i.e. plain data. Further + * nesting is not (yet) supported. + * + * The Forge validators for PKCS #7's ASN.1 structures are available from + * a separate file pkcs7asn1.js, since those are referenced from other + * PKCS standards like PKCS #12. + */ +var forge = require('./forge'); +require('./aes'); +require('./asn1'); +require('./des'); +require('./oids'); +require('./pem'); +require('./pkcs7asn1'); +require('./random'); +require('./util'); +require('./x509'); + +// shortcut for ASN.1 API +var asn1 = forge.asn1; + +// shortcut for PKCS#7 API +var p7 = module.exports = forge.pkcs7 = forge.pkcs7 || {}; + +/** + * Converts a PKCS#7 message from PEM format. + * + * @param pem the PEM-formatted PKCS#7 message. + * + * @return the PKCS#7 message. + */ +p7.messageFromPem = function(pem) { + var msg = forge.pem.decode(pem)[0]; + + if(msg.type !== 'PKCS7') { + var error = new Error('Could not convert PKCS#7 message from PEM; PEM ' + + 'header type is not "PKCS#7".'); + error.headerType = msg.type; + throw error; + } + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + throw new Error('Could not convert PKCS#7 message from PEM; PEM is encrypted.'); + } + + // convert DER to ASN.1 object + var obj = asn1.fromDer(msg.body); + + return p7.messageFromAsn1(obj); +}; + +/** + * Converts a PKCS#7 message to PEM format. + * + * @param msg The PKCS#7 message object + * @param maxline The maximum characters per line, defaults to 64. + * + * @return The PEM-formatted PKCS#7 message. + */ +p7.messageToPem = function(msg, maxline) { + // convert to ASN.1, then DER, then PEM-encode + var pemObj = { + type: 'PKCS7', + body: asn1.toDer(msg.toAsn1()).getBytes() + }; + return forge.pem.encode(pemObj, {maxline: maxline}); +}; + +/** + * Converts a PKCS#7 message from an ASN.1 object. + * + * @param obj the ASN.1 representation of a ContentInfo. + * + * @return the PKCS#7 message. + */ +p7.messageFromAsn1 = function(obj) { + // validate root level ContentInfo and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(obj, p7.asn1.contentInfoValidator, capture, errors)) { + var error = new Error('Cannot read PKCS#7 message. ' + + 'ASN.1 object is not an PKCS#7 ContentInfo.'); + error.errors = errors; + throw error; + } + + var contentType = asn1.derToOid(capture.contentType); + var msg; + + switch(contentType) { + case forge.pki.oids.envelopedData: + msg = p7.createEnvelopedData(); + break; + + case forge.pki.oids.encryptedData: + msg = p7.createEncryptedData(); + break; + + case forge.pki.oids.signedData: + msg = p7.createSignedData(); + break; + + default: + throw new Error('Cannot read PKCS#7 message. ContentType with OID ' + + contentType + ' is not (yet) supported.'); + } + + msg.fromAsn1(capture.content.value[0]); + return msg; +}; + +p7.createSignedData = function() { + var msg = null; + msg = { + type: forge.pki.oids.signedData, + version: 1, + certificates: [], + crls: [], + // TODO: add json-formatted signer stuff here? + signers: [], + // populated during sign() + digestAlgorithmIdentifiers: [], + contentInfo: null, + signerInfos: [], + + fromAsn1: function(obj) { + // validate SignedData content block and capture data. + _fromAsn1(msg, obj, p7.asn1.signedDataValidator); + msg.certificates = []; + msg.crls = []; + msg.digestAlgorithmIdentifiers = []; + msg.contentInfo = null; + msg.signerInfos = []; + + if(msg.rawCapture.certificates) { + var certs = msg.rawCapture.certificates.value; + for(var i = 0; i < certs.length; ++i) { + msg.certificates.push(forge.pki.certificateFromAsn1(certs[i])); + } + } + + // TODO: parse crls + }, + + toAsn1: function() { + // degenerate case with no content + if(!msg.contentInfo) { + msg.sign(); + } + + var certs = []; + for(var i = 0; i < msg.certificates.length; ++i) { + certs.push(forge.pki.certificateToAsn1(msg.certificates[i])); + } + + var crls = []; + // TODO: implement CRLs + + // [0] SignedData + var signedData = asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // Version + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(msg.version).getBytes()), + // DigestAlgorithmIdentifiers + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SET, true, + msg.digestAlgorithmIdentifiers), + // ContentInfo + msg.contentInfo + ]) + ]); + if(certs.length > 0) { + // [0] IMPLICIT ExtendedCertificatesAndCertificates OPTIONAL + signedData.value[0].value.push( + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, certs)); + } + if(crls.length > 0) { + // [1] IMPLICIT CertificateRevocationLists OPTIONAL + signedData.value[0].value.push( + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 1, true, crls)); + } + // SignerInfos + signedData.value[0].value.push( + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, + msg.signerInfos)); + + // ContentInfo + return asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // ContentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(msg.type).getBytes()), + // [0] SignedData + signedData + ]); + }, + + /** + * Add (another) entity to list of signers. + * + * Note: If authenticatedAttributes are provided, then, per RFC 2315, + * they must include at least two attributes: content type and + * message digest. The message digest attribute value will be + * auto-calculated during signing and will be ignored if provided. + * + * Here's an example of providing these two attributes: + * + * forge.pkcs7.createSignedData(); + * p7.addSigner({ + * issuer: cert.issuer.attributes, + * serialNumber: cert.serialNumber, + * key: privateKey, + * digestAlgorithm: forge.pki.oids.sha1, + * authenticatedAttributes: [{ + * type: forge.pki.oids.contentType, + * value: forge.pki.oids.data + * }, { + * type: forge.pki.oids.messageDigest + * }] + * }); + * + * TODO: Support [subjectKeyIdentifier] as signer's ID. + * + * @param signer the signer information: + * key the signer's private key. + * [certificate] a certificate containing the public key + * associated with the signer's private key; use this option as + * an alternative to specifying signer.issuer and + * signer.serialNumber. + * [issuer] the issuer attributes (eg: cert.issuer.attributes). + * [serialNumber] the signer's certificate's serial number in + * hexadecimal (eg: cert.serialNumber). + * [digestAlgorithm] the message digest OID, as a string, to use + * (eg: forge.pki.oids.sha1). + * [authenticatedAttributes] an optional array of attributes + * to also sign along with the content. + */ + addSigner: function(signer) { + var issuer = signer.issuer; + var serialNumber = signer.serialNumber; + if(signer.certificate) { + var cert = signer.certificate; + if(typeof cert === 'string') { + cert = forge.pki.certificateFromPem(cert); + } + issuer = cert.issuer.attributes; + serialNumber = cert.serialNumber; + } + var key = signer.key; + if(!key) { + throw new Error( + 'Could not add PKCS#7 signer; no private key specified.'); + } + if(typeof key === 'string') { + key = forge.pki.privateKeyFromPem(key); + } + + // ensure OID known for digest algorithm + var digestAlgorithm = signer.digestAlgorithm || forge.pki.oids.sha1; + switch(digestAlgorithm) { + case forge.pki.oids.sha1: + case forge.pki.oids.sha256: + case forge.pki.oids.sha384: + case forge.pki.oids.sha512: + case forge.pki.oids.md5: + break; + default: + throw new Error( + 'Could not add PKCS#7 signer; unknown message digest algorithm: ' + + digestAlgorithm); + } + + // if authenticatedAttributes is present, then the attributes + // must contain at least PKCS #9 content-type and message-digest + var authenticatedAttributes = signer.authenticatedAttributes || []; + if(authenticatedAttributes.length > 0) { + var contentType = false; + var messageDigest = false; + for(var i = 0; i < authenticatedAttributes.length; ++i) { + var attr = authenticatedAttributes[i]; + if(!contentType && attr.type === forge.pki.oids.contentType) { + contentType = true; + if(messageDigest) { + break; + } + continue; + } + if(!messageDigest && attr.type === forge.pki.oids.messageDigest) { + messageDigest = true; + if(contentType) { + break; + } + continue; + } + } + + if(!contentType || !messageDigest) { + throw new Error('Invalid signer.authenticatedAttributes. If ' + + 'signer.authenticatedAttributes is specified, then it must ' + + 'contain at least two attributes, PKCS #9 content-type and ' + + 'PKCS #9 message-digest.'); + } + } + + msg.signers.push({ + key: key, + version: 1, + issuer: issuer, + serialNumber: serialNumber, + digestAlgorithm: digestAlgorithm, + signatureAlgorithm: forge.pki.oids.rsaEncryption, + signature: null, + authenticatedAttributes: authenticatedAttributes, + unauthenticatedAttributes: [] + }); + }, + + /** + * Signs the content. + * @param options Options to apply when signing: + * [detached] boolean. If signing should be done in detached mode. Defaults to false. + */ + sign: function(options) { + options = options || {}; + // auto-generate content info + if(typeof msg.content !== 'object' || msg.contentInfo === null) { + // use Data ContentInfo + msg.contentInfo = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // ContentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(forge.pki.oids.data).getBytes()) + ]); + + // add actual content, if present + if('content' in msg) { + var content; + if(msg.content instanceof forge.util.ByteBuffer) { + content = msg.content.bytes(); + } else if(typeof msg.content === 'string') { + content = forge.util.encodeUtf8(msg.content); + } + + if (options.detached) { + msg.detachedContent = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, content); + } else { + msg.contentInfo.value.push( + // [0] EXPLICIT content + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + content) + ])); + } + } + } + + // no signers, return early (degenerate case for certificate container) + if(msg.signers.length === 0) { + return; + } + + // generate digest algorithm identifiers + var mds = addDigestAlgorithmIds(); + + // generate signerInfos + addSignerInfos(mds); + }, + + verify: function() { + throw new Error('PKCS#7 signature verification not yet implemented.'); + }, + + /** + * Add a certificate. + * + * @param cert the certificate to add. + */ + addCertificate: function(cert) { + // convert from PEM + if(typeof cert === 'string') { + cert = forge.pki.certificateFromPem(cert); + } + msg.certificates.push(cert); + }, + + /** + * Add a certificate revokation list. + * + * @param crl the certificate revokation list to add. + */ + addCertificateRevokationList: function(crl) { + throw new Error('PKCS#7 CRL support not yet implemented.'); + } + }; + return msg; + + function addDigestAlgorithmIds() { + var mds = {}; + + for(var i = 0; i < msg.signers.length; ++i) { + var signer = msg.signers[i]; + var oid = signer.digestAlgorithm; + if(!(oid in mds)) { + // content digest + mds[oid] = forge.md[forge.pki.oids[oid]].create(); + } + if(signer.authenticatedAttributes.length === 0) { + // no custom attributes to digest; use content message digest + signer.md = mds[oid]; + } else { + // custom attributes to be digested; use own message digest + // TODO: optimize to just copy message digest state if that + // feature is ever supported with message digests + signer.md = forge.md[forge.pki.oids[oid]].create(); + } + } + + // add unique digest algorithm identifiers + msg.digestAlgorithmIdentifiers = []; + for(var oid in mds) { + msg.digestAlgorithmIdentifiers.push( + // AlgorithmIdentifier + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(oid).getBytes()), + // parameters (null) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ])); + } + + return mds; + } + + function addSignerInfos(mds) { + var content; + + if (msg.detachedContent) { + // Signature has been made in detached mode. + content = msg.detachedContent; + } else { + // Note: ContentInfo is a SEQUENCE with 2 values, second value is + // the content field and is optional for a ContentInfo but required here + // since signers are present + // get ContentInfo content + content = msg.contentInfo.value[1]; + // skip [0] EXPLICIT content wrapper + content = content.value[0]; + } + + if(!content) { + throw new Error( + 'Could not sign PKCS#7 message; there is no content to sign.'); + } + + // get ContentInfo content type + var contentType = asn1.derToOid(msg.contentInfo.value[0].value); + + // serialize content + var bytes = asn1.toDer(content); + + // skip identifier and length per RFC 2315 9.3 + // skip identifier (1 byte) + bytes.getByte(); + // read and discard length bytes + asn1.getBerValueLength(bytes); + bytes = bytes.getBytes(); + + // digest content DER value bytes + for(var oid in mds) { + mds[oid].start().update(bytes); + } + + // sign content + var signingTime = new Date(); + for(var i = 0; i < msg.signers.length; ++i) { + var signer = msg.signers[i]; + + if(signer.authenticatedAttributes.length === 0) { + // if ContentInfo content type is not "Data", then + // authenticatedAttributes must be present per RFC 2315 + if(contentType !== forge.pki.oids.data) { + throw new Error( + 'Invalid signer; authenticatedAttributes must be present ' + + 'when the ContentInfo content type is not PKCS#7 Data.'); + } + } else { + // process authenticated attributes + // [0] IMPLICIT + signer.authenticatedAttributesAsn1 = asn1.create( + asn1.Class.CONTEXT_SPECIFIC, 0, true, []); + + // per RFC 2315, attributes are to be digested using a SET container + // not the above [0] IMPLICIT container + var attrsAsn1 = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SET, true, []); + + for(var ai = 0; ai < signer.authenticatedAttributes.length; ++ai) { + var attr = signer.authenticatedAttributes[ai]; + if(attr.type === forge.pki.oids.messageDigest) { + // use content message digest as value + attr.value = mds[signer.digestAlgorithm].digest(); + } else if(attr.type === forge.pki.oids.signingTime) { + // auto-populate signing time if not already set + if(!attr.value) { + attr.value = signingTime; + } + } + + // convert to ASN.1 and push onto Attributes SET (for signing) and + // onto authenticatedAttributesAsn1 to complete SignedData ASN.1 + // TODO: optimize away duplication + attrsAsn1.value.push(_attributeToAsn1(attr)); + signer.authenticatedAttributesAsn1.value.push(_attributeToAsn1(attr)); + } + + // DER-serialize and digest SET OF attributes only + bytes = asn1.toDer(attrsAsn1).getBytes(); + signer.md.start().update(bytes); + } + + // sign digest + signer.signature = signer.key.sign(signer.md, 'RSASSA-PKCS1-V1_5'); + } + + // add signer info + msg.signerInfos = _signersToAsn1(msg.signers); + } +}; + +/** + * Creates an empty PKCS#7 message of type EncryptedData. + * + * @return the message. + */ +p7.createEncryptedData = function() { + var msg = null; + msg = { + type: forge.pki.oids.encryptedData, + version: 0, + encryptedContent: { + algorithm: forge.pki.oids['aes256-CBC'] + }, + + /** + * Reads an EncryptedData content block (in ASN.1 format) + * + * @param obj The ASN.1 representation of the EncryptedData content block + */ + fromAsn1: function(obj) { + // Validate EncryptedData content block and capture data. + _fromAsn1(msg, obj, p7.asn1.encryptedDataValidator); + }, + + /** + * Decrypt encrypted content + * + * @param key The (symmetric) key as a byte buffer + */ + decrypt: function(key) { + if(key !== undefined) { + msg.encryptedContent.key = key; + } + _decryptContent(msg); + } + }; + return msg; +}; + +/** + * Creates an empty PKCS#7 message of type EnvelopedData. + * + * @return the message. + */ +p7.createEnvelopedData = function() { + var msg = null; + msg = { + type: forge.pki.oids.envelopedData, + version: 0, + recipients: [], + encryptedContent: { + algorithm: forge.pki.oids['aes256-CBC'] + }, + + /** + * Reads an EnvelopedData content block (in ASN.1 format) + * + * @param obj the ASN.1 representation of the EnvelopedData content block. + */ + fromAsn1: function(obj) { + // validate EnvelopedData content block and capture data + var capture = _fromAsn1(msg, obj, p7.asn1.envelopedDataValidator); + msg.recipients = _recipientsFromAsn1(capture.recipientInfos.value); + }, + + toAsn1: function() { + // ContentInfo + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // ContentType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(msg.type).getBytes()), + // [0] EnvelopedData + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // Version + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(msg.version).getBytes()), + // RecipientInfos + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, + _recipientsToAsn1(msg.recipients)), + // EncryptedContentInfo + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, + _encryptedContentToAsn1(msg.encryptedContent)) + ]) + ]) + ]); + }, + + /** + * Find recipient by X.509 certificate's issuer. + * + * @param cert the certificate with the issuer to look for. + * + * @return the recipient object. + */ + findRecipient: function(cert) { + var sAttr = cert.issuer.attributes; + + for(var i = 0; i < msg.recipients.length; ++i) { + var r = msg.recipients[i]; + var rAttr = r.issuer; + + if(r.serialNumber !== cert.serialNumber) { + continue; + } + + if(rAttr.length !== sAttr.length) { + continue; + } + + var match = true; + for(var j = 0; j < sAttr.length; ++j) { + if(rAttr[j].type !== sAttr[j].type || + rAttr[j].value !== sAttr[j].value) { + match = false; + break; + } + } + + if(match) { + return r; + } + } + + return null; + }, + + /** + * Decrypt enveloped content + * + * @param recipient The recipient object related to the private key + * @param privKey The (RSA) private key object + */ + decrypt: function(recipient, privKey) { + if(msg.encryptedContent.key === undefined && recipient !== undefined && + privKey !== undefined) { + switch(recipient.encryptedContent.algorithm) { + case forge.pki.oids.rsaEncryption: + case forge.pki.oids.desCBC: + var key = privKey.decrypt(recipient.encryptedContent.content); + msg.encryptedContent.key = forge.util.createBuffer(key); + break; + + default: + throw new Error('Unsupported asymmetric cipher, ' + + 'OID ' + recipient.encryptedContent.algorithm); + } + } + + _decryptContent(msg); + }, + + /** + * Add (another) entity to list of recipients. + * + * @param cert The certificate of the entity to add. + */ + addRecipient: function(cert) { + msg.recipients.push({ + version: 0, + issuer: cert.issuer.attributes, + serialNumber: cert.serialNumber, + encryptedContent: { + // We simply assume rsaEncryption here, since forge.pki only + // supports RSA so far. If the PKI module supports other + // ciphers one day, we need to modify this one as well. + algorithm: forge.pki.oids.rsaEncryption, + key: cert.publicKey + } + }); + }, + + /** + * Encrypt enveloped content. + * + * This function supports two optional arguments, cipher and key, which + * can be used to influence symmetric encryption. Unless cipher is + * provided, the cipher specified in encryptedContent.algorithm is used + * (defaults to AES-256-CBC). If no key is provided, encryptedContent.key + * is (re-)used. If that one's not set, a random key will be generated + * automatically. + * + * @param [key] The key to be used for symmetric encryption. + * @param [cipher] The OID of the symmetric cipher to use. + */ + encrypt: function(key, cipher) { + // Part 1: Symmetric encryption + if(msg.encryptedContent.content === undefined) { + cipher = cipher || msg.encryptedContent.algorithm; + key = key || msg.encryptedContent.key; + + var keyLen, ivLen, ciphFn; + switch(cipher) { + case forge.pki.oids['aes128-CBC']: + keyLen = 16; + ivLen = 16; + ciphFn = forge.aes.createEncryptionCipher; + break; + + case forge.pki.oids['aes192-CBC']: + keyLen = 24; + ivLen = 16; + ciphFn = forge.aes.createEncryptionCipher; + break; + + case forge.pki.oids['aes256-CBC']: + keyLen = 32; + ivLen = 16; + ciphFn = forge.aes.createEncryptionCipher; + break; + + case forge.pki.oids['des-EDE3-CBC']: + keyLen = 24; + ivLen = 8; + ciphFn = forge.des.createEncryptionCipher; + break; + + default: + throw new Error('Unsupported symmetric cipher, OID ' + cipher); + } + + if(key === undefined) { + key = forge.util.createBuffer(forge.random.getBytes(keyLen)); + } else if(key.length() != keyLen) { + throw new Error('Symmetric key has wrong length; ' + + 'got ' + key.length() + ' bytes, expected ' + keyLen + '.'); + } + + // Keep a copy of the key & IV in the object, so the caller can + // use it for whatever reason. + msg.encryptedContent.algorithm = cipher; + msg.encryptedContent.key = key; + msg.encryptedContent.parameter = forge.util.createBuffer( + forge.random.getBytes(ivLen)); + + var ciph = ciphFn(key); + ciph.start(msg.encryptedContent.parameter.copy()); + ciph.update(msg.content); + + // The finish function does PKCS#7 padding by default, therefore + // no action required by us. + if(!ciph.finish()) { + throw new Error('Symmetric encryption failed.'); + } + + msg.encryptedContent.content = ciph.output; + } + + // Part 2: asymmetric encryption for each recipient + for(var i = 0; i < msg.recipients.length; ++i) { + var recipient = msg.recipients[i]; + + // Nothing to do, encryption already done. + if(recipient.encryptedContent.content !== undefined) { + continue; + } + + switch(recipient.encryptedContent.algorithm) { + case forge.pki.oids.rsaEncryption: + recipient.encryptedContent.content = + recipient.encryptedContent.key.encrypt( + msg.encryptedContent.key.data); + break; + + default: + throw new Error('Unsupported asymmetric cipher, OID ' + + recipient.encryptedContent.algorithm); + } + } + } + }; + return msg; +}; + +/** + * Converts a single recipient from an ASN.1 object. + * + * @param obj the ASN.1 RecipientInfo. + * + * @return the recipient object. + */ +function _recipientFromAsn1(obj) { + // validate EnvelopedData content block and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(obj, p7.asn1.recipientInfoValidator, capture, errors)) { + var error = new Error('Cannot read PKCS#7 RecipientInfo. ' + + 'ASN.1 object is not an PKCS#7 RecipientInfo.'); + error.errors = errors; + throw error; + } + + return { + version: capture.version.charCodeAt(0), + issuer: forge.pki.RDNAttributesAsArray(capture.issuer), + serialNumber: forge.util.createBuffer(capture.serial).toHex(), + encryptedContent: { + algorithm: asn1.derToOid(capture.encAlgorithm), + parameter: capture.encParameter ? capture.encParameter.value : undefined, + content: capture.encKey + } + }; +} + +/** + * Converts a single recipient object to an ASN.1 object. + * + * @param obj the recipient object. + * + * @return the ASN.1 RecipientInfo. + */ +function _recipientToAsn1(obj) { + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // Version + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(obj.version).getBytes()), + // IssuerAndSerialNumber + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // Name + forge.pki.distinguishedNameToAsn1({attributes: obj.issuer}), + // Serial + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + forge.util.hexToBytes(obj.serialNumber)) + ]), + // KeyEncryptionAlgorithmIdentifier + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // Algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(obj.encryptedContent.algorithm).getBytes()), + // Parameter, force NULL, only RSA supported for now. + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]), + // EncryptedKey + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + obj.encryptedContent.content) + ]); +} + +/** + * Map a set of RecipientInfo ASN.1 objects to recipient objects. + * + * @param infos an array of ASN.1 representations RecipientInfo (i.e. SET OF). + * + * @return an array of recipient objects. + */ +function _recipientsFromAsn1(infos) { + var ret = []; + for(var i = 0; i < infos.length; ++i) { + ret.push(_recipientFromAsn1(infos[i])); + } + return ret; +} + +/** + * Map an array of recipient objects to ASN.1 RecipientInfo objects. + * + * @param recipients an array of recipientInfo objects. + * + * @return an array of ASN.1 RecipientInfos. + */ +function _recipientsToAsn1(recipients) { + var ret = []; + for(var i = 0; i < recipients.length; ++i) { + ret.push(_recipientToAsn1(recipients[i])); + } + return ret; +} + +/** + * Converts a single signer from an ASN.1 object. + * + * @param obj the ASN.1 representation of a SignerInfo. + * + * @return the signer object. + */ +function _signerFromAsn1(obj) { + // validate EnvelopedData content block and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(obj, p7.asn1.signerInfoValidator, capture, errors)) { + var error = new Error('Cannot read PKCS#7 SignerInfo. ' + + 'ASN.1 object is not an PKCS#7 SignerInfo.'); + error.errors = errors; + throw error; + } + + var rval = { + version: capture.version.charCodeAt(0), + issuer: forge.pki.RDNAttributesAsArray(capture.issuer), + serialNumber: forge.util.createBuffer(capture.serial).toHex(), + digestAlgorithm: asn1.derToOid(capture.digestAlgorithm), + signatureAlgorithm: asn1.derToOid(capture.signatureAlgorithm), + signature: capture.signature, + authenticatedAttributes: [], + unauthenticatedAttributes: [] + }; + + // TODO: convert attributes + var authenticatedAttributes = capture.authenticatedAttributes || []; + var unauthenticatedAttributes = capture.unauthenticatedAttributes || []; + + return rval; +} + +/** + * Converts a single signerInfo object to an ASN.1 object. + * + * @param obj the signerInfo object. + * + * @return the ASN.1 representation of a SignerInfo. + */ +function _signerToAsn1(obj) { + // SignerInfo + var rval = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // version + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(obj.version).getBytes()), + // issuerAndSerialNumber + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // name + forge.pki.distinguishedNameToAsn1({attributes: obj.issuer}), + // serial + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + forge.util.hexToBytes(obj.serialNumber)) + ]), + // digestAlgorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(obj.digestAlgorithm).getBytes()), + // parameters (null) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]) + ]); + + // authenticatedAttributes (OPTIONAL) + if(obj.authenticatedAttributesAsn1) { + // add ASN.1 previously generated during signing + rval.value.push(obj.authenticatedAttributesAsn1); + } + + // digestEncryptionAlgorithm + rval.value.push(asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(obj.signatureAlgorithm).getBytes()), + // parameters (null) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ])); + + // encryptedDigest + rval.value.push(asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, obj.signature)); + + // unauthenticatedAttributes (OPTIONAL) + if(obj.unauthenticatedAttributes.length > 0) { + // [1] IMPLICIT + var attrsAsn1 = asn1.create(asn1.Class.CONTEXT_SPECIFIC, 1, true, []); + for(var i = 0; i < obj.unauthenticatedAttributes.length; ++i) { + var attr = obj.unauthenticatedAttributes[i]; + attrsAsn1.values.push(_attributeToAsn1(attr)); + } + rval.value.push(attrsAsn1); + } + + return rval; +} + +/** + * Map a set of SignerInfo ASN.1 objects to an array of signer objects. + * + * @param signerInfoAsn1s an array of ASN.1 SignerInfos (i.e. SET OF). + * + * @return an array of signers objects. + */ +function _signersFromAsn1(signerInfoAsn1s) { + var ret = []; + for(var i = 0; i < signerInfoAsn1s.length; ++i) { + ret.push(_signerFromAsn1(signerInfoAsn1s[i])); + } + return ret; +} + +/** + * Map an array of signer objects to ASN.1 objects. + * + * @param signers an array of signer objects. + * + * @return an array of ASN.1 SignerInfos. + */ +function _signersToAsn1(signers) { + var ret = []; + for(var i = 0; i < signers.length; ++i) { + ret.push(_signerToAsn1(signers[i])); + } + return ret; +} + +/** + * Convert an attribute object to an ASN.1 Attribute. + * + * @param attr the attribute object. + * + * @return the ASN.1 Attribute. + */ +function _attributeToAsn1(attr) { + var value; + + // TODO: generalize to support more attributes + if(attr.type === forge.pki.oids.contentType) { + value = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(attr.value).getBytes()); + } else if(attr.type === forge.pki.oids.messageDigest) { + value = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + attr.value.bytes()); + } else if(attr.type === forge.pki.oids.signingTime) { + /* Note per RFC 2985: Dates between 1 January 1950 and 31 December 2049 + (inclusive) MUST be encoded as UTCTime. Any dates with year values + before 1950 or after 2049 MUST be encoded as GeneralizedTime. [Further,] + UTCTime values MUST be expressed in Greenwich Mean Time (Zulu) and MUST + include seconds (i.e., times are YYMMDDHHMMSSZ), even where the + number of seconds is zero. Midnight (GMT) must be represented as + "YYMMDD000000Z". */ + // TODO: make these module-level constants + var jan_1_1950 = new Date('1950-01-01T00:00:00Z'); + var jan_1_2050 = new Date('2050-01-01T00:00:00Z'); + var date = attr.value; + if(typeof date === 'string') { + // try to parse date + var timestamp = Date.parse(date); + if(!isNaN(timestamp)) { + date = new Date(timestamp); + } else if(date.length === 13) { + // YYMMDDHHMMSSZ (13 chars for UTCTime) + date = asn1.utcTimeToDate(date); + } else { + // assume generalized time + date = asn1.generalizedTimeToDate(date); + } + } + + if(date >= jan_1_1950 && date < jan_1_2050) { + value = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.UTCTIME, false, + asn1.dateToUtcTime(date)); + } else { + value = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.GENERALIZEDTIME, false, + asn1.dateToGeneralizedTime(date)); + } + } + + // TODO: expose as common API call + // create a RelativeDistinguishedName set + // each value in the set is an AttributeTypeAndValue first + // containing the type (an OID) and second the value + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // AttributeType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(attr.type).getBytes()), + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, [ + // AttributeValue + value + ]) + ]); +} + +/** + * Map messages encrypted content to ASN.1 objects. + * + * @param ec The encryptedContent object of the message. + * + * @return ASN.1 representation of the encryptedContent object (SEQUENCE). + */ +function _encryptedContentToAsn1(ec) { + return [ + // ContentType, always Data for the moment + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(forge.pki.oids.data).getBytes()), + // ContentEncryptionAlgorithmIdentifier + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // Algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(ec.algorithm).getBytes()), + // Parameters (IV) + !ec.parameter ? + undefined : + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + ec.parameter.getBytes()) + ]), + // [0] EncryptedContent + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + ec.content.getBytes()) + ]) + ]; +} + +/** + * Reads the "common part" of an PKCS#7 content block (in ASN.1 format) + * + * This function reads the "common part" of the PKCS#7 content blocks + * EncryptedData and EnvelopedData, i.e. version number and symmetrically + * encrypted content block. + * + * The result of the ASN.1 validate and capture process is returned + * to allow the caller to extract further data, e.g. the list of recipients + * in case of a EnvelopedData object. + * + * @param msg the PKCS#7 object to read the data to. + * @param obj the ASN.1 representation of the content block. + * @param validator the ASN.1 structure validator object to use. + * + * @return the value map captured by validator object. + */ +function _fromAsn1(msg, obj, validator) { + var capture = {}; + var errors = []; + if(!asn1.validate(obj, validator, capture, errors)) { + var error = new Error('Cannot read PKCS#7 message. ' + + 'ASN.1 object is not a supported PKCS#7 message.'); + error.errors = error; + throw error; + } + + // Check contentType, so far we only support (raw) Data. + var contentType = asn1.derToOid(capture.contentType); + if(contentType !== forge.pki.oids.data) { + throw new Error('Unsupported PKCS#7 message. ' + + 'Only wrapped ContentType Data supported.'); + } + + if(capture.encryptedContent) { + var content = ''; + if(forge.util.isArray(capture.encryptedContent)) { + for(var i = 0; i < capture.encryptedContent.length; ++i) { + if(capture.encryptedContent[i].type !== asn1.Type.OCTETSTRING) { + throw new Error('Malformed PKCS#7 message, expecting encrypted ' + + 'content constructed of only OCTET STRING objects.'); + } + content += capture.encryptedContent[i].value; + } + } else { + content = capture.encryptedContent; + } + msg.encryptedContent = { + algorithm: asn1.derToOid(capture.encAlgorithm), + parameter: forge.util.createBuffer(capture.encParameter.value), + content: forge.util.createBuffer(content) + }; + } + + if(capture.content) { + var content = ''; + if(forge.util.isArray(capture.content)) { + for(var i = 0; i < capture.content.length; ++i) { + if(capture.content[i].type !== asn1.Type.OCTETSTRING) { + throw new Error('Malformed PKCS#7 message, expecting ' + + 'content constructed of only OCTET STRING objects.'); + } + content += capture.content[i].value; + } + } else { + content = capture.content; + } + msg.content = forge.util.createBuffer(content); + } + + msg.version = capture.version.charCodeAt(0); + msg.rawCapture = capture; + + return capture; +} + +/** + * Decrypt the symmetrically encrypted content block of the PKCS#7 message. + * + * Decryption is skipped in case the PKCS#7 message object already has a + * (decrypted) content attribute. The algorithm, key and cipher parameters + * (probably the iv) are taken from the encryptedContent attribute of the + * message object. + * + * @param The PKCS#7 message object. + */ +function _decryptContent(msg) { + if(msg.encryptedContent.key === undefined) { + throw new Error('Symmetric key not available.'); + } + + if(msg.content === undefined) { + var ciph; + + switch(msg.encryptedContent.algorithm) { + case forge.pki.oids['aes128-CBC']: + case forge.pki.oids['aes192-CBC']: + case forge.pki.oids['aes256-CBC']: + ciph = forge.aes.createDecryptionCipher(msg.encryptedContent.key); + break; + + case forge.pki.oids['desCBC']: + case forge.pki.oids['des-EDE3-CBC']: + ciph = forge.des.createDecryptionCipher(msg.encryptedContent.key); + break; + + default: + throw new Error('Unsupported symmetric cipher, OID ' + + msg.encryptedContent.algorithm); + } + ciph.start(msg.encryptedContent.parameter); + ciph.update(msg.encryptedContent.content); + + if(!ciph.finish()) { + throw new Error('Symmetric decryption failed.'); + } + + msg.content = ciph.output; + } +} diff --git a/node_modules/node-forge/lib/pkcs7asn1.js b/node_modules/node-forge/lib/pkcs7asn1.js new file mode 100644 index 0000000..0e13c89 --- /dev/null +++ b/node_modules/node-forge/lib/pkcs7asn1.js @@ -0,0 +1,410 @@ +/** + * Javascript implementation of ASN.1 validators for PKCS#7 v1.5. + * + * @author Dave Longley + * @author Stefan Siegl + * + * Copyright (c) 2012-2015 Digital Bazaar, Inc. + * Copyright (c) 2012 Stefan Siegl + * + * The ASN.1 representation of PKCS#7 is as follows + * (see RFC #2315 for details, http://www.ietf.org/rfc/rfc2315.txt): + * + * A PKCS#7 message consists of a ContentInfo on root level, which may + * contain any number of further ContentInfo nested into it. + * + * ContentInfo ::= SEQUENCE { + * contentType ContentType, + * content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL + * } + * + * ContentType ::= OBJECT IDENTIFIER + * + * EnvelopedData ::= SEQUENCE { + * version Version, + * recipientInfos RecipientInfos, + * encryptedContentInfo EncryptedContentInfo + * } + * + * EncryptedData ::= SEQUENCE { + * version Version, + * encryptedContentInfo EncryptedContentInfo + * } + * + * id-signedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) + * us(840) rsadsi(113549) pkcs(1) pkcs7(7) 2 } + * + * SignedData ::= SEQUENCE { + * version INTEGER, + * digestAlgorithms DigestAlgorithmIdentifiers, + * contentInfo ContentInfo, + * certificates [0] IMPLICIT Certificates OPTIONAL, + * crls [1] IMPLICIT CertificateRevocationLists OPTIONAL, + * signerInfos SignerInfos + * } + * + * SignerInfos ::= SET OF SignerInfo + * + * SignerInfo ::= SEQUENCE { + * version Version, + * issuerAndSerialNumber IssuerAndSerialNumber, + * digestAlgorithm DigestAlgorithmIdentifier, + * authenticatedAttributes [0] IMPLICIT Attributes OPTIONAL, + * digestEncryptionAlgorithm DigestEncryptionAlgorithmIdentifier, + * encryptedDigest EncryptedDigest, + * unauthenticatedAttributes [1] IMPLICIT Attributes OPTIONAL + * } + * + * EncryptedDigest ::= OCTET STRING + * + * Attributes ::= SET OF Attribute + * + * Attribute ::= SEQUENCE { + * attrType OBJECT IDENTIFIER, + * attrValues SET OF AttributeValue + * } + * + * AttributeValue ::= ANY + * + * Version ::= INTEGER + * + * RecipientInfos ::= SET OF RecipientInfo + * + * EncryptedContentInfo ::= SEQUENCE { + * contentType ContentType, + * contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier, + * encryptedContent [0] IMPLICIT EncryptedContent OPTIONAL + * } + * + * ContentEncryptionAlgorithmIdentifier ::= AlgorithmIdentifier + * + * The AlgorithmIdentifier contains an Object Identifier (OID) and parameters + * for the algorithm, if any. In the case of AES and DES3, there is only one, + * the IV. + * + * AlgorithmIdentifer ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters ANY DEFINED BY algorithm OPTIONAL + * } + * + * EncryptedContent ::= OCTET STRING + * + * RecipientInfo ::= SEQUENCE { + * version Version, + * issuerAndSerialNumber IssuerAndSerialNumber, + * keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier, + * encryptedKey EncryptedKey + * } + * + * IssuerAndSerialNumber ::= SEQUENCE { + * issuer Name, + * serialNumber CertificateSerialNumber + * } + * + * CertificateSerialNumber ::= INTEGER + * + * KeyEncryptionAlgorithmIdentifier ::= AlgorithmIdentifier + * + * EncryptedKey ::= OCTET STRING + */ +var forge = require('./forge'); +require('./asn1'); +require('./util'); + +// shortcut for ASN.1 API +var asn1 = forge.asn1; + +// shortcut for PKCS#7 API +var p7v = module.exports = forge.pkcs7asn1 = forge.pkcs7asn1 || {}; +forge.pkcs7 = forge.pkcs7 || {}; +forge.pkcs7.asn1 = p7v; + +var contentInfoValidator = { + name: 'ContentInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'ContentInfo.ContentType', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'contentType' + }, { + name: 'ContentInfo.content', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 0, + constructed: true, + optional: true, + captureAsn1: 'content' + }] +}; +p7v.contentInfoValidator = contentInfoValidator; + +var encryptedContentInfoValidator = { + name: 'EncryptedContentInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'EncryptedContentInfo.contentType', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'contentType' + }, { + name: 'EncryptedContentInfo.contentEncryptionAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'EncryptedContentInfo.contentEncryptionAlgorithm.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'encAlgorithm' + }, { + name: 'EncryptedContentInfo.contentEncryptionAlgorithm.parameter', + tagClass: asn1.Class.UNIVERSAL, + captureAsn1: 'encParameter' + }] + }, { + name: 'EncryptedContentInfo.encryptedContent', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 0, + /* The PKCS#7 structure output by OpenSSL somewhat differs from what + * other implementations do generate. + * + * OpenSSL generates a structure like this: + * SEQUENCE { + * ... + * [0] + * 26 DA 67 D2 17 9C 45 3C B1 2A A8 59 2F 29 33 38 + * C3 C3 DF 86 71 74 7A 19 9F 40 D0 29 BE 85 90 45 + * ... + * } + * + * Whereas other implementations (and this PKCS#7 module) generate: + * SEQUENCE { + * ... + * [0] { + * OCTET STRING + * 26 DA 67 D2 17 9C 45 3C B1 2A A8 59 2F 29 33 38 + * C3 C3 DF 86 71 74 7A 19 9F 40 D0 29 BE 85 90 45 + * ... + * } + * } + * + * In order to support both, we just capture the context specific + * field here. The OCTET STRING bit is removed below. + */ + capture: 'encryptedContent', + captureAsn1: 'encryptedContentAsn1' + }] +}; + +p7v.envelopedDataValidator = { + name: 'EnvelopedData', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'EnvelopedData.Version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'version' + }, { + name: 'EnvelopedData.RecipientInfos', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SET, + constructed: true, + captureAsn1: 'recipientInfos' + }].concat(encryptedContentInfoValidator) +}; + +p7v.encryptedDataValidator = { + name: 'EncryptedData', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'EncryptedData.Version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'version' + }].concat(encryptedContentInfoValidator) +}; + +var signerValidator = { + name: 'SignerInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'SignerInfo.version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false + }, { + name: 'SignerInfo.issuerAndSerialNumber', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'SignerInfo.issuerAndSerialNumber.issuer', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'issuer' + }, { + name: 'SignerInfo.issuerAndSerialNumber.serialNumber', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'serial' + }] + }, { + name: 'SignerInfo.digestAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'SignerInfo.digestAlgorithm.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'digestAlgorithm' + }, { + name: 'SignerInfo.digestAlgorithm.parameter', + tagClass: asn1.Class.UNIVERSAL, + constructed: false, + captureAsn1: 'digestParameter', + optional: true + }] + }, { + name: 'SignerInfo.authenticatedAttributes', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 0, + constructed: true, + optional: true, + capture: 'authenticatedAttributes' + }, { + name: 'SignerInfo.digestEncryptionAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + capture: 'signatureAlgorithm' + }, { + name: 'SignerInfo.encryptedDigest', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'signature' + }, { + name: 'SignerInfo.unauthenticatedAttributes', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 1, + constructed: true, + optional: true, + capture: 'unauthenticatedAttributes' + }] +}; + +p7v.signedDataValidator = { + name: 'SignedData', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'SignedData.Version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'version' + }, { + name: 'SignedData.DigestAlgorithms', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SET, + constructed: true, + captureAsn1: 'digestAlgorithms' + }, + contentInfoValidator, + { + name: 'SignedData.Certificates', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 0, + optional: true, + captureAsn1: 'certificates' + }, { + name: 'SignedData.CertificateRevocationLists', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 1, + optional: true, + captureAsn1: 'crls' + }, { + name: 'SignedData.SignerInfos', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SET, + capture: 'signerInfos', + optional: true, + value: [signerValidator] + }] +}; + +p7v.recipientInfoValidator = { + name: 'RecipientInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'RecipientInfo.version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'version' + }, { + name: 'RecipientInfo.issuerAndSerial', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'RecipientInfo.issuerAndSerial.issuer', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'issuer' + }, { + name: 'RecipientInfo.issuerAndSerial.serialNumber', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'serial' + }] + }, { + name: 'RecipientInfo.keyEncryptionAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'RecipientInfo.keyEncryptionAlgorithm.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'encAlgorithm' + }, { + name: 'RecipientInfo.keyEncryptionAlgorithm.parameter', + tagClass: asn1.Class.UNIVERSAL, + constructed: false, + captureAsn1: 'encParameter', + optional: true + }] + }, { + name: 'RecipientInfo.encryptedKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'encKey' + }] +}; diff --git a/node_modules/node-forge/lib/pki.js b/node_modules/node-forge/lib/pki.js new file mode 100644 index 0000000..ee82ff1 --- /dev/null +++ b/node_modules/node-forge/lib/pki.js @@ -0,0 +1,102 @@ +/** + * Javascript implementation of a basic Public Key Infrastructure, including + * support for RSA public and private keys. + * + * @author Dave Longley + * + * Copyright (c) 2010-2013 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./asn1'); +require('./oids'); +require('./pbe'); +require('./pem'); +require('./pbkdf2'); +require('./pkcs12'); +require('./pss'); +require('./rsa'); +require('./util'); +require('./x509'); + +// shortcut for asn.1 API +var asn1 = forge.asn1; + +/* Public Key Infrastructure (PKI) implementation. */ +var pki = module.exports = forge.pki = forge.pki || {}; + +/** + * NOTE: THIS METHOD IS DEPRECATED. Use pem.decode() instead. + * + * Converts PEM-formatted data to DER. + * + * @param pem the PEM-formatted data. + * + * @return the DER-formatted data. + */ +pki.pemToDer = function(pem) { + var msg = forge.pem.decode(pem)[0]; + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + throw new Error('Could not convert PEM to DER; PEM is encrypted.'); + } + return forge.util.createBuffer(msg.body); +}; + +/** + * Converts an RSA private key from PEM format. + * + * @param pem the PEM-formatted private key. + * + * @return the private key. + */ +pki.privateKeyFromPem = function(pem) { + var msg = forge.pem.decode(pem)[0]; + + if(msg.type !== 'PRIVATE KEY' && msg.type !== 'RSA PRIVATE KEY') { + var error = new Error('Could not convert private key from PEM; PEM ' + + 'header type is not "PRIVATE KEY" or "RSA PRIVATE KEY".'); + error.headerType = msg.type; + throw error; + } + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + throw new Error('Could not convert private key from PEM; PEM is encrypted.'); + } + + // convert DER to ASN.1 object + var obj = asn1.fromDer(msg.body); + + return pki.privateKeyFromAsn1(obj); +}; + +/** + * Converts an RSA private key to PEM format. + * + * @param key the private key. + * @param maxline the maximum characters per line, defaults to 64. + * + * @return the PEM-formatted private key. + */ +pki.privateKeyToPem = function(key, maxline) { + // convert to ASN.1, then DER, then PEM-encode + var msg = { + type: 'RSA PRIVATE KEY', + body: asn1.toDer(pki.privateKeyToAsn1(key)).getBytes() + }; + return forge.pem.encode(msg, {maxline: maxline}); +}; + +/** + * Converts a PrivateKeyInfo to PEM format. + * + * @param pki the PrivateKeyInfo. + * @param maxline the maximum characters per line, defaults to 64. + * + * @return the PEM-formatted private key. + */ +pki.privateKeyInfoToPem = function(pki, maxline) { + // convert to DER, then PEM-encode + var msg = { + type: 'PRIVATE KEY', + body: asn1.toDer(pki).getBytes() + }; + return forge.pem.encode(msg, {maxline: maxline}); +}; diff --git a/node_modules/node-forge/lib/prime.js b/node_modules/node-forge/lib/prime.js new file mode 100644 index 0000000..3d51473 --- /dev/null +++ b/node_modules/node-forge/lib/prime.js @@ -0,0 +1,297 @@ +/** + * Prime number generation API. + * + * @author Dave Longley + * + * Copyright (c) 2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); +require('./jsbn'); +require('./random'); + +(function() { + +// forge.prime already defined +if(forge.prime) { + module.exports = forge.prime; + return; +} + +/* PRIME API */ +var prime = module.exports = forge.prime = forge.prime || {}; + +var BigInteger = forge.jsbn.BigInteger; + +// primes are 30k+i for i = 1, 7, 11, 13, 17, 19, 23, 29 +var GCD_30_DELTA = [6, 4, 2, 4, 2, 4, 6, 2]; +var THIRTY = new BigInteger(null); +THIRTY.fromInt(30); +var op_or = function(x, y) {return x|y;}; + +/** + * Generates a random probable prime with the given number of bits. + * + * Alternative algorithms can be specified by name as a string or as an + * object with custom options like so: + * + * { + * name: 'PRIMEINC', + * options: { + * maxBlockTime: , + * millerRabinTests: , + * workerScript: , + * workers: . + * workLoad: the size of the work load, ie: number of possible prime + * numbers for each web worker to check per work assignment, + * (default: 100). + * } + * } + * + * @param bits the number of bits for the prime number. + * @param options the options to use. + * [algorithm] the algorithm to use (default: 'PRIMEINC'). + * [prng] a custom crypto-secure pseudo-random number generator to use, + * that must define "getBytesSync". + * + * @return callback(err, num) called once the operation completes. + */ +prime.generateProbablePrime = function(bits, options, callback) { + if(typeof options === 'function') { + callback = options; + options = {}; + } + options = options || {}; + + // default to PRIMEINC algorithm + var algorithm = options.algorithm || 'PRIMEINC'; + if(typeof algorithm === 'string') { + algorithm = {name: algorithm}; + } + algorithm.options = algorithm.options || {}; + + // create prng with api that matches BigInteger secure random + var prng = options.prng || forge.random; + var rng = { + // x is an array to fill with bytes + nextBytes: function(x) { + var b = prng.getBytesSync(x.length); + for(var i = 0; i < x.length; ++i) { + x[i] = b.charCodeAt(i); + } + } + }; + + if(algorithm.name === 'PRIMEINC') { + return primeincFindPrime(bits, rng, algorithm.options, callback); + } + + throw new Error('Invalid prime generation algorithm: ' + algorithm.name); +}; + +function primeincFindPrime(bits, rng, options, callback) { + if('workers' in options) { + return primeincFindPrimeWithWorkers(bits, rng, options, callback); + } + return primeincFindPrimeWithoutWorkers(bits, rng, options, callback); +} + +function primeincFindPrimeWithoutWorkers(bits, rng, options, callback) { + // initialize random number + var num = generateRandom(bits, rng); + + /* Note: All primes are of the form 30k+i for i < 30 and gcd(30, i)=1. The + number we are given is always aligned at 30k + 1. Each time the number is + determined not to be prime we add to get to the next 'i', eg: if the number + was at 30k + 1 we add 6. */ + var deltaIdx = 0; + + // get required number of MR tests + var mrTests = getMillerRabinTests(num.bitLength()); + if('millerRabinTests' in options) { + mrTests = options.millerRabinTests; + } + + // find prime nearest to 'num' for maxBlockTime ms + // 10 ms gives 5ms of leeway for other calculations before dropping + // below 60fps (1000/60 == 16.67), but in reality, the number will + // likely be higher due to an 'atomic' big int modPow + var maxBlockTime = 10; + if('maxBlockTime' in options) { + maxBlockTime = options.maxBlockTime; + } + + _primeinc(num, bits, rng, deltaIdx, mrTests, maxBlockTime, callback); +} + +function _primeinc(num, bits, rng, deltaIdx, mrTests, maxBlockTime, callback) { + var start = +new Date(); + do { + // overflow, regenerate random number + if(num.bitLength() > bits) { + num = generateRandom(bits, rng); + } + // do primality test + if(num.isProbablePrime(mrTests)) { + return callback(null, num); + } + // get next potential prime + num.dAddOffset(GCD_30_DELTA[deltaIdx++ % 8], 0); + } while(maxBlockTime < 0 || (+new Date() - start < maxBlockTime)); + + // keep trying later + forge.util.setImmediate(function() { + _primeinc(num, bits, rng, deltaIdx, mrTests, maxBlockTime, callback); + }); +} + +// NOTE: This algorithm is indeterminate in nature because workers +// run in parallel looking at different segments of numbers. Even if this +// algorithm is run twice with the same input from a predictable RNG, it +// may produce different outputs. +function primeincFindPrimeWithWorkers(bits, rng, options, callback) { + // web workers unavailable + if(typeof Worker === 'undefined') { + return primeincFindPrimeWithoutWorkers(bits, rng, options, callback); + } + + // initialize random number + var num = generateRandom(bits, rng); + + // use web workers to generate keys + var numWorkers = options.workers; + var workLoad = options.workLoad || 100; + var range = workLoad * 30 / 8; + var workerScript = options.workerScript || 'forge/prime.worker.js'; + if(numWorkers === -1) { + return forge.util.estimateCores(function(err, cores) { + if(err) { + // default to 2 + cores = 2; + } + numWorkers = cores - 1; + generate(); + }); + } + generate(); + + function generate() { + // require at least 1 worker + numWorkers = Math.max(1, numWorkers); + + // TODO: consider optimizing by starting workers outside getPrime() ... + // note that in order to clean up they will have to be made internally + // asynchronous which may actually be slower + + // start workers immediately + var workers = []; + for(var i = 0; i < numWorkers; ++i) { + // FIXME: fix path or use blob URLs + workers[i] = new Worker(workerScript); + } + var running = numWorkers; + + // listen for requests from workers and assign ranges to find prime + for(var i = 0; i < numWorkers; ++i) { + workers[i].addEventListener('message', workerMessage); + } + + /* Note: The distribution of random numbers is unknown. Therefore, each + web worker is continuously allocated a range of numbers to check for a + random number until one is found. + + Every 30 numbers will be checked just 8 times, because prime numbers + have the form: + + 30k+i, for i < 30 and gcd(30, i)=1 (there are 8 values of i for this) + + Therefore, if we want a web worker to run N checks before asking for + a new range of numbers, each range must contain N*30/8 numbers. + + For 100 checks (workLoad), this is a range of 375. */ + + var found = false; + function workerMessage(e) { + // ignore message, prime already found + if(found) { + return; + } + + --running; + var data = e.data; + if(data.found) { + // terminate all workers + for(var i = 0; i < workers.length; ++i) { + workers[i].terminate(); + } + found = true; + return callback(null, new BigInteger(data.prime, 16)); + } + + // overflow, regenerate random number + if(num.bitLength() > bits) { + num = generateRandom(bits, rng); + } + + // assign new range to check + var hex = num.toString(16); + + // start prime search + e.target.postMessage({ + hex: hex, + workLoad: workLoad + }); + + num.dAddOffset(range, 0); + } + } +} + +/** + * Generates a random number using the given number of bits and RNG. + * + * @param bits the number of bits for the number. + * @param rng the random number generator to use. + * + * @return the random number. + */ +function generateRandom(bits, rng) { + var num = new BigInteger(bits, rng); + // force MSB set + var bits1 = bits - 1; + if(!num.testBit(bits1)) { + num.bitwiseTo(BigInteger.ONE.shiftLeft(bits1), op_or, num); + } + // align number on 30k+1 boundary + num.dAddOffset(31 - num.mod(THIRTY).byteValue(), 0); + return num; +} + +/** + * Returns the required number of Miller-Rabin tests to generate a + * prime with an error probability of (1/2)^80. + * + * See Handbook of Applied Cryptography Chapter 4, Table 4.4. + * + * @param bits the bit size. + * + * @return the required number of iterations. + */ +function getMillerRabinTests(bits) { + if(bits <= 100) return 27; + if(bits <= 150) return 18; + if(bits <= 200) return 15; + if(bits <= 250) return 12; + if(bits <= 300) return 9; + if(bits <= 350) return 8; + if(bits <= 400) return 7; + if(bits <= 500) return 6; + if(bits <= 600) return 5; + if(bits <= 800) return 4; + if(bits <= 1250) return 3; + return 2; +} + +})(); diff --git a/node_modules/node-forge/lib/prime.worker.js b/node_modules/node-forge/lib/prime.worker.js new file mode 100644 index 0000000..ce1355d --- /dev/null +++ b/node_modules/node-forge/lib/prime.worker.js @@ -0,0 +1,168 @@ +/** + * RSA Key Generation Worker. + * + * @author Dave Longley + * + * Copyright (c) 2013 Digital Bazaar, Inc. + */ +// worker is built using CommonJS syntax to include all code in one worker file +//importScripts('jsbn.js'); +var forge = require('./forge'); +require('./jsbn'); + +// prime constants +var LOW_PRIMES = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997]; +var LP_LIMIT = (1 << 26) / LOW_PRIMES[LOW_PRIMES.length - 1]; + +var BigInteger = forge.jsbn.BigInteger; +var BIG_TWO = new BigInteger(null); +BIG_TWO.fromInt(2); + +self.addEventListener('message', function(e) { + var result = findPrime(e.data); + self.postMessage(result); +}); + +// start receiving ranges to check +self.postMessage({found: false}); + +// primes are 30k+i for i = 1, 7, 11, 13, 17, 19, 23, 29 +var GCD_30_DELTA = [6, 4, 2, 4, 2, 4, 6, 2]; + +function findPrime(data) { + // TODO: abstract based on data.algorithm (PRIMEINC vs. others) + + // create BigInteger from given random bytes + var num = new BigInteger(data.hex, 16); + + /* Note: All primes are of the form 30k+i for i < 30 and gcd(30, i)=1. The + number we are given is always aligned at 30k + 1. Each time the number is + determined not to be prime we add to get to the next 'i', eg: if the number + was at 30k + 1 we add 6. */ + var deltaIdx = 0; + + // find nearest prime + var workLoad = data.workLoad; + for(var i = 0; i < workLoad; ++i) { + // do primality test + if(isProbablePrime(num)) { + return {found: true, prime: num.toString(16)}; + } + // get next potential prime + num.dAddOffset(GCD_30_DELTA[deltaIdx++ % 8], 0); + } + + return {found: false}; +} + +function isProbablePrime(n) { + // divide by low primes, ignore even checks, etc (n alread aligned properly) + var i = 1; + while(i < LOW_PRIMES.length) { + var m = LOW_PRIMES[i]; + var j = i + 1; + while(j < LOW_PRIMES.length && m < LP_LIMIT) { + m *= LOW_PRIMES[j++]; + } + m = n.modInt(m); + while(i < j) { + if(m % LOW_PRIMES[i++] === 0) { + return false; + } + } + } + return runMillerRabin(n); +} + +// HAC 4.24, Miller-Rabin +function runMillerRabin(n) { + // n1 = n - 1 + var n1 = n.subtract(BigInteger.ONE); + + // get s and d such that n1 = 2^s * d + var s = n1.getLowestSetBit(); + if(s <= 0) { + return false; + } + var d = n1.shiftRight(s); + + var k = _getMillerRabinTests(n.bitLength()); + var prng = getPrng(); + var a; + for(var i = 0; i < k; ++i) { + // select witness 'a' at random from between 1 and n - 1 + do { + a = new BigInteger(n.bitLength(), prng); + } while(a.compareTo(BigInteger.ONE) <= 0 || a.compareTo(n1) >= 0); + + /* See if 'a' is a composite witness. */ + + // x = a^d mod n + var x = a.modPow(d, n); + + // probably prime + if(x.compareTo(BigInteger.ONE) === 0 || x.compareTo(n1) === 0) { + continue; + } + + var j = s; + while(--j) { + // x = x^2 mod a + x = x.modPowInt(2, n); + + // 'n' is composite because no previous x == -1 mod n + if(x.compareTo(BigInteger.ONE) === 0) { + return false; + } + // x == -1 mod n, so probably prime + if(x.compareTo(n1) === 0) { + break; + } + } + + // 'x' is first_x^(n1/2) and is not +/- 1, so 'n' is not prime + if(j === 0) { + return false; + } + } + + return true; +} + +// get pseudo random number generator +function getPrng() { + // create prng with api that matches BigInteger secure random + return { + // x is an array to fill with bytes + nextBytes: function(x) { + for(var i = 0; i < x.length; ++i) { + x[i] = Math.floor(Math.random() * 0xFF); + } + } + }; +} + +/** + * Returns the required number of Miller-Rabin tests to generate a + * prime with an error probability of (1/2)^80. + * + * See Handbook of Applied Cryptography Chapter 4, Table 4.4. + * + * @param bits the bit size. + * + * @return the required number of iterations. + */ +function _getMillerRabinTests(bits) { + if(bits <= 100) return 27; + if(bits <= 150) return 18; + if(bits <= 200) return 15; + if(bits <= 250) return 12; + if(bits <= 300) return 9; + if(bits <= 350) return 8; + if(bits <= 400) return 7; + if(bits <= 500) return 6; + if(bits <= 600) return 5; + if(bits <= 800) return 4; + if(bits <= 1250) return 3; + return 2; +} diff --git a/node_modules/node-forge/lib/prng.js b/node_modules/node-forge/lib/prng.js new file mode 100644 index 0000000..d3bd22e --- /dev/null +++ b/node_modules/node-forge/lib/prng.js @@ -0,0 +1,419 @@ +/** + * A javascript implementation of a cryptographically-secure + * Pseudo Random Number Generator (PRNG). The Fortuna algorithm is followed + * here though the use of SHA-256 is not enforced; when generating an + * a PRNG context, the hashing algorithm and block cipher used for + * the generator are specified via a plugin. + * + * @author Dave Longley + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); + +var _crypto = null; +if(forge.util.isNodejs && !forge.options.usePureJavaScript && + !process.versions['node-webkit']) { + _crypto = require('crypto'); +} + +/* PRNG API */ +var prng = module.exports = forge.prng = forge.prng || {}; + +/** + * Creates a new PRNG context. + * + * A PRNG plugin must be passed in that will provide: + * + * 1. A function that initializes the key and seed of a PRNG context. It + * will be given a 16 byte key and a 16 byte seed. Any key expansion + * or transformation of the seed from a byte string into an array of + * integers (or similar) should be performed. + * 2. The cryptographic function used by the generator. It takes a key and + * a seed. + * 3. A seed increment function. It takes the seed and returns seed + 1. + * 4. An api to create a message digest. + * + * For an example, see random.js. + * + * @param plugin the PRNG plugin to use. + */ +prng.create = function(plugin) { + var ctx = { + plugin: plugin, + key: null, + seed: null, + time: null, + // number of reseeds so far + reseeds: 0, + // amount of data generated so far + generated: 0, + // no initial key bytes + keyBytes: '' + }; + + // create 32 entropy pools (each is a message digest) + var md = plugin.md; + var pools = new Array(32); + for(var i = 0; i < 32; ++i) { + pools[i] = md.create(); + } + ctx.pools = pools; + + // entropy pools are written to cyclically, starting at index 0 + ctx.pool = 0; + + /** + * Generates random bytes. The bytes may be generated synchronously or + * asynchronously. Web workers must use the asynchronous interface or + * else the behavior is undefined. + * + * @param count the number of random bytes to generate. + * @param [callback(err, bytes)] called once the operation completes. + * + * @return count random bytes as a string. + */ + ctx.generate = function(count, callback) { + // do synchronously + if(!callback) { + return ctx.generateSync(count); + } + + // simple generator using counter-based CBC + var cipher = ctx.plugin.cipher; + var increment = ctx.plugin.increment; + var formatKey = ctx.plugin.formatKey; + var formatSeed = ctx.plugin.formatSeed; + var b = forge.util.createBuffer(); + + // paranoid deviation from Fortuna: + // reset key for every request to protect previously + // generated random bytes should the key be discovered; + // there is no 100ms based reseeding because of this + // forced reseed for every `generate` call + ctx.key = null; + + generate(); + + function generate(err) { + if(err) { + return callback(err); + } + + // sufficient bytes generated + if(b.length() >= count) { + return callback(null, b.getBytes(count)); + } + + // if amount of data generated is greater than 1 MiB, trigger reseed + if(ctx.generated > 0xfffff) { + ctx.key = null; + } + + if(ctx.key === null) { + // prevent stack overflow + return forge.util.nextTick(function() { + _reseed(generate); + }); + } + + // generate the random bytes + var bytes = cipher(ctx.key, ctx.seed); + ctx.generated += bytes.length; + b.putBytes(bytes); + + // generate bytes for a new key and seed + ctx.key = formatKey(cipher(ctx.key, increment(ctx.seed))); + ctx.seed = formatSeed(cipher(ctx.key, ctx.seed)); + + forge.util.setImmediate(generate); + } + }; + + /** + * Generates random bytes synchronously. + * + * @param count the number of random bytes to generate. + * + * @return count random bytes as a string. + */ + ctx.generateSync = function(count) { + // simple generator using counter-based CBC + var cipher = ctx.plugin.cipher; + var increment = ctx.plugin.increment; + var formatKey = ctx.plugin.formatKey; + var formatSeed = ctx.plugin.formatSeed; + + // paranoid deviation from Fortuna: + // reset key for every request to protect previously + // generated random bytes should the key be discovered; + // there is no 100ms based reseeding because of this + // forced reseed for every `generateSync` call + ctx.key = null; + + var b = forge.util.createBuffer(); + while(b.length() < count) { + // if amount of data generated is greater than 1 MiB, trigger reseed + if(ctx.generated > 0xfffff) { + ctx.key = null; + } + + if(ctx.key === null) { + _reseedSync(); + } + + // generate the random bytes + var bytes = cipher(ctx.key, ctx.seed); + ctx.generated += bytes.length; + b.putBytes(bytes); + + // generate bytes for a new key and seed + ctx.key = formatKey(cipher(ctx.key, increment(ctx.seed))); + ctx.seed = formatSeed(cipher(ctx.key, ctx.seed)); + } + + return b.getBytes(count); + }; + + /** + * Private function that asynchronously reseeds a generator. + * + * @param callback(err) called once the operation completes. + */ + function _reseed(callback) { + if(ctx.pools[0].messageLength >= 32) { + _seed(); + return callback(); + } + // not enough seed data... + var needed = (32 - ctx.pools[0].messageLength) << 5; + ctx.seedFile(needed, function(err, bytes) { + if(err) { + return callback(err); + } + ctx.collect(bytes); + _seed(); + callback(); + }); + } + + /** + * Private function that synchronously reseeds a generator. + */ + function _reseedSync() { + if(ctx.pools[0].messageLength >= 32) { + return _seed(); + } + // not enough seed data... + var needed = (32 - ctx.pools[0].messageLength) << 5; + ctx.collect(ctx.seedFileSync(needed)); + _seed(); + } + + /** + * Private function that seeds a generator once enough bytes are available. + */ + function _seed() { + // update reseed count + ctx.reseeds = (ctx.reseeds === 0xffffffff) ? 0 : ctx.reseeds + 1; + + // goal is to update `key` via: + // key = hash(key + s) + // where 's' is all collected entropy from selected pools, then... + + // create a plugin-based message digest + var md = ctx.plugin.md.create(); + + // consume current key bytes + md.update(ctx.keyBytes); + + // digest the entropy of pools whose index k meet the + // condition 'n mod 2^k == 0' where n is the number of reseeds + var _2powK = 1; + for(var k = 0; k < 32; ++k) { + if(ctx.reseeds % _2powK === 0) { + md.update(ctx.pools[k].digest().getBytes()); + ctx.pools[k].start(); + } + _2powK = _2powK << 1; + } + + // get digest for key bytes + ctx.keyBytes = md.digest().getBytes(); + + // paranoid deviation from Fortuna: + // update `seed` via `seed = hash(key)` + // instead of initializing to zero once and only + // ever incrementing it + md.start(); + md.update(ctx.keyBytes); + var seedBytes = md.digest().getBytes(); + + // update state + ctx.key = ctx.plugin.formatKey(ctx.keyBytes); + ctx.seed = ctx.plugin.formatSeed(seedBytes); + ctx.generated = 0; + } + + /** + * The built-in default seedFile. This seedFile is used when entropy + * is needed immediately. + * + * @param needed the number of bytes that are needed. + * + * @return the random bytes. + */ + function defaultSeedFile(needed) { + // use window.crypto.getRandomValues strong source of entropy if available + var getRandomValues = null; + var globalScope = forge.util.globalScope; + var _crypto = globalScope.crypto || globalScope.msCrypto; + if(_crypto && _crypto.getRandomValues) { + getRandomValues = function(arr) { + return _crypto.getRandomValues(arr); + }; + } + + var b = forge.util.createBuffer(); + if(getRandomValues) { + while(b.length() < needed) { + // max byte length is 65536 before QuotaExceededError is thrown + // http://www.w3.org/TR/WebCryptoAPI/#RandomSource-method-getRandomValues + var count = Math.max(1, Math.min(needed - b.length(), 65536) / 4); + var entropy = new Uint32Array(Math.floor(count)); + try { + getRandomValues(entropy); + for(var i = 0; i < entropy.length; ++i) { + b.putInt32(entropy[i]); + } + } catch(e) { + /* only ignore QuotaExceededError */ + if(!(typeof QuotaExceededError !== 'undefined' && + e instanceof QuotaExceededError)) { + throw e; + } + } + } + } + + // be sad and add some weak random data + if(b.length() < needed) { + /* Draws from Park-Miller "minimal standard" 31 bit PRNG, + implemented with David G. Carta's optimization: with 32 bit math + and without division (Public Domain). */ + var hi, lo, next; + var seed = Math.floor(Math.random() * 0x010000); + while(b.length() < needed) { + lo = 16807 * (seed & 0xFFFF); + hi = 16807 * (seed >> 16); + lo += (hi & 0x7FFF) << 16; + lo += hi >> 15; + lo = (lo & 0x7FFFFFFF) + (lo >> 31); + seed = lo & 0xFFFFFFFF; + + // consume lower 3 bytes of seed + for(var i = 0; i < 3; ++i) { + // throw in more pseudo random + next = seed >>> (i << 3); + next ^= Math.floor(Math.random() * 0x0100); + b.putByte(next & 0xFF); + } + } + } + + return b.getBytes(needed); + } + // initialize seed file APIs + if(_crypto) { + // use nodejs async API + ctx.seedFile = function(needed, callback) { + _crypto.randomBytes(needed, function(err, bytes) { + if(err) { + return callback(err); + } + callback(null, bytes.toString()); + }); + }; + // use nodejs sync API + ctx.seedFileSync = function(needed) { + return _crypto.randomBytes(needed).toString(); + }; + } else { + ctx.seedFile = function(needed, callback) { + try { + callback(null, defaultSeedFile(needed)); + } catch(e) { + callback(e); + } + }; + ctx.seedFileSync = defaultSeedFile; + } + + /** + * Adds entropy to a prng ctx's accumulator. + * + * @param bytes the bytes of entropy as a string. + */ + ctx.collect = function(bytes) { + // iterate over pools distributing entropy cyclically + var count = bytes.length; + for(var i = 0; i < count; ++i) { + ctx.pools[ctx.pool].update(bytes.substr(i, 1)); + ctx.pool = (ctx.pool === 31) ? 0 : ctx.pool + 1; + } + }; + + /** + * Collects an integer of n bits. + * + * @param i the integer entropy. + * @param n the number of bits in the integer. + */ + ctx.collectInt = function(i, n) { + var bytes = ''; + for(var x = 0; x < n; x += 8) { + bytes += String.fromCharCode((i >> x) & 0xFF); + } + ctx.collect(bytes); + }; + + /** + * Registers a Web Worker to receive immediate entropy from the main thread. + * This method is required until Web Workers can access the native crypto + * API. This method should be called twice for each created worker, once in + * the main thread, and once in the worker itself. + * + * @param worker the worker to register. + */ + ctx.registerWorker = function(worker) { + // worker receives random bytes + if(worker === self) { + ctx.seedFile = function(needed, callback) { + function listener(e) { + var data = e.data; + if(data.forge && data.forge.prng) { + self.removeEventListener('message', listener); + callback(data.forge.prng.err, data.forge.prng.bytes); + } + } + self.addEventListener('message', listener); + self.postMessage({forge: {prng: {needed: needed}}}); + }; + } else { + // main thread sends random bytes upon request + var listener = function(e) { + var data = e.data; + if(data.forge && data.forge.prng) { + ctx.seedFile(data.forge.prng.needed, function(err, bytes) { + worker.postMessage({forge: {prng: {err: err, bytes: bytes}}}); + }); + } + }; + // TODO: do we need to remove the event listener when the worker dies? + worker.addEventListener('message', listener); + } + }; + + return ctx; +}; diff --git a/node_modules/node-forge/lib/pss.js b/node_modules/node-forge/lib/pss.js new file mode 100644 index 0000000..2596693 --- /dev/null +++ b/node_modules/node-forge/lib/pss.js @@ -0,0 +1,241 @@ +/** + * Javascript implementation of PKCS#1 PSS signature padding. + * + * @author Stefan Siegl + * + * Copyright (c) 2012 Stefan Siegl + */ +var forge = require('./forge'); +require('./random'); +require('./util'); + +// shortcut for PSS API +var pss = module.exports = forge.pss = forge.pss || {}; + +/** + * Creates a PSS signature scheme object. + * + * There are several ways to provide a salt for encoding: + * + * 1. Specify the saltLength only and the built-in PRNG will generate it. + * 2. Specify the saltLength and a custom PRNG with 'getBytesSync' defined that + * will be used. + * 3. Specify the salt itself as a forge.util.ByteBuffer. + * + * @param options the options to use: + * md the message digest object to use, a forge md instance. + * mgf the mask generation function to use, a forge mgf instance. + * [saltLength] the length of the salt in octets. + * [prng] the pseudo-random number generator to use to produce a salt. + * [salt] the salt to use when encoding. + * + * @return a signature scheme object. + */ +pss.create = function(options) { + // backwards compatibility w/legacy args: hash, mgf, sLen + if(arguments.length === 3) { + options = { + md: arguments[0], + mgf: arguments[1], + saltLength: arguments[2] + }; + } + + var hash = options.md; + var mgf = options.mgf; + var hLen = hash.digestLength; + + var salt_ = options.salt || null; + if(typeof salt_ === 'string') { + // assume binary-encoded string + salt_ = forge.util.createBuffer(salt_); + } + + var sLen; + if('saltLength' in options) { + sLen = options.saltLength; + } else if(salt_ !== null) { + sLen = salt_.length(); + } else { + throw new Error('Salt length not specified or specific salt not given.'); + } + + if(salt_ !== null && salt_.length() !== sLen) { + throw new Error('Given salt length does not match length of given salt.'); + } + + var prng = options.prng || forge.random; + + var pssobj = {}; + + /** + * Encodes a PSS signature. + * + * This function implements EMSA-PSS-ENCODE as per RFC 3447, section 9.1.1. + * + * @param md the message digest object with the hash to sign. + * @param modsBits the length of the RSA modulus in bits. + * + * @return the encoded message as a binary-encoded string of length + * ceil((modBits - 1) / 8). + */ + pssobj.encode = function(md, modBits) { + var i; + var emBits = modBits - 1; + var emLen = Math.ceil(emBits / 8); + + /* 2. Let mHash = Hash(M), an octet string of length hLen. */ + var mHash = md.digest().getBytes(); + + /* 3. If emLen < hLen + sLen + 2, output "encoding error" and stop. */ + if(emLen < hLen + sLen + 2) { + throw new Error('Message is too long to encrypt.'); + } + + /* 4. Generate a random octet string salt of length sLen; if sLen = 0, + * then salt is the empty string. */ + var salt; + if(salt_ === null) { + salt = prng.getBytesSync(sLen); + } else { + salt = salt_.bytes(); + } + + /* 5. Let M' = (0x)00 00 00 00 00 00 00 00 || mHash || salt; */ + var m_ = new forge.util.ByteBuffer(); + m_.fillWithByte(0, 8); + m_.putBytes(mHash); + m_.putBytes(salt); + + /* 6. Let H = Hash(M'), an octet string of length hLen. */ + hash.start(); + hash.update(m_.getBytes()); + var h = hash.digest().getBytes(); + + /* 7. Generate an octet string PS consisting of emLen - sLen - hLen - 2 + * zero octets. The length of PS may be 0. */ + var ps = new forge.util.ByteBuffer(); + ps.fillWithByte(0, emLen - sLen - hLen - 2); + + /* 8. Let DB = PS || 0x01 || salt; DB is an octet string of length + * emLen - hLen - 1. */ + ps.putByte(0x01); + ps.putBytes(salt); + var db = ps.getBytes(); + + /* 9. Let dbMask = MGF(H, emLen - hLen - 1). */ + var maskLen = emLen - hLen - 1; + var dbMask = mgf.generate(h, maskLen); + + /* 10. Let maskedDB = DB \xor dbMask. */ + var maskedDB = ''; + for(i = 0; i < maskLen; i++) { + maskedDB += String.fromCharCode(db.charCodeAt(i) ^ dbMask.charCodeAt(i)); + } + + /* 11. Set the leftmost 8emLen - emBits bits of the leftmost octet in + * maskedDB to zero. */ + var mask = (0xFF00 >> (8 * emLen - emBits)) & 0xFF; + maskedDB = String.fromCharCode(maskedDB.charCodeAt(0) & ~mask) + + maskedDB.substr(1); + + /* 12. Let EM = maskedDB || H || 0xbc. + * 13. Output EM. */ + return maskedDB + h + String.fromCharCode(0xbc); + }; + + /** + * Verifies a PSS signature. + * + * This function implements EMSA-PSS-VERIFY as per RFC 3447, section 9.1.2. + * + * @param mHash the message digest hash, as a binary-encoded string, to + * compare against the signature. + * @param em the encoded message, as a binary-encoded string + * (RSA decryption result). + * @param modsBits the length of the RSA modulus in bits. + * + * @return true if the signature was verified, false if not. + */ + pssobj.verify = function(mHash, em, modBits) { + var i; + var emBits = modBits - 1; + var emLen = Math.ceil(emBits / 8); + + /* c. Convert the message representative m to an encoded message EM + * of length emLen = ceil((modBits - 1) / 8) octets, where modBits + * is the length in bits of the RSA modulus n */ + em = em.substr(-emLen); + + /* 3. If emLen < hLen + sLen + 2, output "inconsistent" and stop. */ + if(emLen < hLen + sLen + 2) { + throw new Error('Inconsistent parameters to PSS signature verification.'); + } + + /* 4. If the rightmost octet of EM does not have hexadecimal value + * 0xbc, output "inconsistent" and stop. */ + if(em.charCodeAt(emLen - 1) !== 0xbc) { + throw new Error('Encoded message does not end in 0xBC.'); + } + + /* 5. Let maskedDB be the leftmost emLen - hLen - 1 octets of EM, and + * let H be the next hLen octets. */ + var maskLen = emLen - hLen - 1; + var maskedDB = em.substr(0, maskLen); + var h = em.substr(maskLen, hLen); + + /* 6. If the leftmost 8emLen - emBits bits of the leftmost octet in + * maskedDB are not all equal to zero, output "inconsistent" and stop. */ + var mask = (0xFF00 >> (8 * emLen - emBits)) & 0xFF; + if((maskedDB.charCodeAt(0) & mask) !== 0) { + throw new Error('Bits beyond keysize not zero as expected.'); + } + + /* 7. Let dbMask = MGF(H, emLen - hLen - 1). */ + var dbMask = mgf.generate(h, maskLen); + + /* 8. Let DB = maskedDB \xor dbMask. */ + var db = ''; + for(i = 0; i < maskLen; i++) { + db += String.fromCharCode(maskedDB.charCodeAt(i) ^ dbMask.charCodeAt(i)); + } + + /* 9. Set the leftmost 8emLen - emBits bits of the leftmost octet + * in DB to zero. */ + db = String.fromCharCode(db.charCodeAt(0) & ~mask) + db.substr(1); + + /* 10. If the emLen - hLen - sLen - 2 leftmost octets of DB are not zero + * or if the octet at position emLen - hLen - sLen - 1 (the leftmost + * position is "position 1") does not have hexadecimal value 0x01, + * output "inconsistent" and stop. */ + var checkLen = emLen - hLen - sLen - 2; + for(i = 0; i < checkLen; i++) { + if(db.charCodeAt(i) !== 0x00) { + throw new Error('Leftmost octets not zero as expected'); + } + } + + if(db.charCodeAt(checkLen) !== 0x01) { + throw new Error('Inconsistent PSS signature, 0x01 marker not found'); + } + + /* 11. Let salt be the last sLen octets of DB. */ + var salt = db.substr(-sLen); + + /* 12. Let M' = (0x)00 00 00 00 00 00 00 00 || mHash || salt */ + var m_ = new forge.util.ByteBuffer(); + m_.fillWithByte(0, 8); + m_.putBytes(mHash); + m_.putBytes(salt); + + /* 13. Let H' = Hash(M'), an octet string of length hLen. */ + hash.start(); + hash.update(m_.getBytes()); + var h_ = hash.digest().getBytes(); + + /* 14. If H = H', output "consistent." Otherwise, output "inconsistent." */ + return h === h_; + }; + + return pssobj; +}; diff --git a/node_modules/node-forge/lib/random.js b/node_modules/node-forge/lib/random.js new file mode 100644 index 0000000..d4e4bea --- /dev/null +++ b/node_modules/node-forge/lib/random.js @@ -0,0 +1,191 @@ +/** + * An API for getting cryptographically-secure random bytes. The bytes are + * generated using the Fortuna algorithm devised by Bruce Schneier and + * Niels Ferguson. + * + * Getting strong random bytes is not yet easy to do in javascript. The only + * truish random entropy that can be collected is from the mouse, keyboard, or + * from timing with respect to page loads, etc. This generator makes a poor + * attempt at providing random bytes when those sources haven't yet provided + * enough entropy to initially seed or to reseed the PRNG. + * + * @author Dave Longley + * + * Copyright (c) 2009-2014 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./aes'); +require('./sha256'); +require('./prng'); +require('./util'); + +(function() { + +// forge.random already defined +if(forge.random && forge.random.getBytes) { + module.exports = forge.random; + return; +} + +(function(jQuery) { + +// the default prng plugin, uses AES-128 +var prng_aes = {}; +var _prng_aes_output = new Array(4); +var _prng_aes_buffer = forge.util.createBuffer(); +prng_aes.formatKey = function(key) { + // convert the key into 32-bit integers + var tmp = forge.util.createBuffer(key); + key = new Array(4); + key[0] = tmp.getInt32(); + key[1] = tmp.getInt32(); + key[2] = tmp.getInt32(); + key[3] = tmp.getInt32(); + + // return the expanded key + return forge.aes._expandKey(key, false); +}; +prng_aes.formatSeed = function(seed) { + // convert seed into 32-bit integers + var tmp = forge.util.createBuffer(seed); + seed = new Array(4); + seed[0] = tmp.getInt32(); + seed[1] = tmp.getInt32(); + seed[2] = tmp.getInt32(); + seed[3] = tmp.getInt32(); + return seed; +}; +prng_aes.cipher = function(key, seed) { + forge.aes._updateBlock(key, seed, _prng_aes_output, false); + _prng_aes_buffer.putInt32(_prng_aes_output[0]); + _prng_aes_buffer.putInt32(_prng_aes_output[1]); + _prng_aes_buffer.putInt32(_prng_aes_output[2]); + _prng_aes_buffer.putInt32(_prng_aes_output[3]); + return _prng_aes_buffer.getBytes(); +}; +prng_aes.increment = function(seed) { + // FIXME: do we care about carry or signed issues? + ++seed[3]; + return seed; +}; +prng_aes.md = forge.md.sha256; + +/** + * Creates a new PRNG. + */ +function spawnPrng() { + var ctx = forge.prng.create(prng_aes); + + /** + * Gets random bytes. If a native secure crypto API is unavailable, this + * method tries to make the bytes more unpredictable by drawing from data that + * can be collected from the user of the browser, eg: mouse movement. + * + * If a callback is given, this method will be called asynchronously. + * + * @param count the number of random bytes to get. + * @param [callback(err, bytes)] called once the operation completes. + * + * @return the random bytes in a string. + */ + ctx.getBytes = function(count, callback) { + return ctx.generate(count, callback); + }; + + /** + * Gets random bytes asynchronously. If a native secure crypto API is + * unavailable, this method tries to make the bytes more unpredictable by + * drawing from data that can be collected from the user of the browser, + * eg: mouse movement. + * + * @param count the number of random bytes to get. + * + * @return the random bytes in a string. + */ + ctx.getBytesSync = function(count) { + return ctx.generate(count); + }; + + return ctx; +} + +// create default prng context +var _ctx = spawnPrng(); + +// add other sources of entropy only if window.crypto.getRandomValues is not +// available -- otherwise this source will be automatically used by the prng +var getRandomValues = null; +var globalScope = forge.util.globalScope; +var _crypto = globalScope.crypto || globalScope.msCrypto; +if(_crypto && _crypto.getRandomValues) { + getRandomValues = function(arr) { + return _crypto.getRandomValues(arr); + }; +} + +if(forge.options.usePureJavaScript || + (!forge.util.isNodejs && !getRandomValues)) { + // if this is a web worker, do not use weak entropy, instead register to + // receive strong entropy asynchronously from the main thread + if(typeof window === 'undefined' || window.document === undefined) { + // FIXME: + } + + // get load time entropy + _ctx.collectInt(+new Date(), 32); + + // add some entropy from navigator object + if(typeof(navigator) !== 'undefined') { + var _navBytes = ''; + for(var key in navigator) { + try { + if(typeof(navigator[key]) == 'string') { + _navBytes += navigator[key]; + } + } catch(e) { + /* Some navigator keys might not be accessible, e.g. the geolocation + attribute throws an exception if touched in Mozilla chrome:// + context. + + Silently ignore this and just don't use this as a source of + entropy. */ + } + } + _ctx.collect(_navBytes); + _navBytes = null; + } + + // add mouse and keyboard collectors if jquery is available + if(jQuery) { + // set up mouse entropy capture + jQuery().mousemove(function(e) { + // add mouse coords + _ctx.collectInt(e.clientX, 16); + _ctx.collectInt(e.clientY, 16); + }); + + // set up keyboard entropy capture + jQuery().keypress(function(e) { + _ctx.collectInt(e.charCode, 8); + }); + } +} + +/* Random API */ +if(!forge.random) { + forge.random = _ctx; +} else { + // extend forge.random with _ctx + for(var key in _ctx) { + forge.random[key] = _ctx[key]; + } +} + +// expose spawn PRNG +forge.random.createInstance = spawnPrng; + +module.exports = forge.random; + +})(typeof(jQuery) !== 'undefined' ? jQuery : null); + +})(); diff --git a/node_modules/node-forge/lib/rc2.js b/node_modules/node-forge/lib/rc2.js new file mode 100644 index 0000000..e33f78a --- /dev/null +++ b/node_modules/node-forge/lib/rc2.js @@ -0,0 +1,410 @@ +/** + * RC2 implementation. + * + * @author Stefan Siegl + * + * Copyright (c) 2012 Stefan Siegl + * + * Information on the RC2 cipher is available from RFC #2268, + * http://www.ietf.org/rfc/rfc2268.txt + */ +var forge = require('./forge'); +require('./util'); + +var piTable = [ + 0xd9, 0x78, 0xf9, 0xc4, 0x19, 0xdd, 0xb5, 0xed, 0x28, 0xe9, 0xfd, 0x79, 0x4a, 0xa0, 0xd8, 0x9d, + 0xc6, 0x7e, 0x37, 0x83, 0x2b, 0x76, 0x53, 0x8e, 0x62, 0x4c, 0x64, 0x88, 0x44, 0x8b, 0xfb, 0xa2, + 0x17, 0x9a, 0x59, 0xf5, 0x87, 0xb3, 0x4f, 0x13, 0x61, 0x45, 0x6d, 0x8d, 0x09, 0x81, 0x7d, 0x32, + 0xbd, 0x8f, 0x40, 0xeb, 0x86, 0xb7, 0x7b, 0x0b, 0xf0, 0x95, 0x21, 0x22, 0x5c, 0x6b, 0x4e, 0x82, + 0x54, 0xd6, 0x65, 0x93, 0xce, 0x60, 0xb2, 0x1c, 0x73, 0x56, 0xc0, 0x14, 0xa7, 0x8c, 0xf1, 0xdc, + 0x12, 0x75, 0xca, 0x1f, 0x3b, 0xbe, 0xe4, 0xd1, 0x42, 0x3d, 0xd4, 0x30, 0xa3, 0x3c, 0xb6, 0x26, + 0x6f, 0xbf, 0x0e, 0xda, 0x46, 0x69, 0x07, 0x57, 0x27, 0xf2, 0x1d, 0x9b, 0xbc, 0x94, 0x43, 0x03, + 0xf8, 0x11, 0xc7, 0xf6, 0x90, 0xef, 0x3e, 0xe7, 0x06, 0xc3, 0xd5, 0x2f, 0xc8, 0x66, 0x1e, 0xd7, + 0x08, 0xe8, 0xea, 0xde, 0x80, 0x52, 0xee, 0xf7, 0x84, 0xaa, 0x72, 0xac, 0x35, 0x4d, 0x6a, 0x2a, + 0x96, 0x1a, 0xd2, 0x71, 0x5a, 0x15, 0x49, 0x74, 0x4b, 0x9f, 0xd0, 0x5e, 0x04, 0x18, 0xa4, 0xec, + 0xc2, 0xe0, 0x41, 0x6e, 0x0f, 0x51, 0xcb, 0xcc, 0x24, 0x91, 0xaf, 0x50, 0xa1, 0xf4, 0x70, 0x39, + 0x99, 0x7c, 0x3a, 0x85, 0x23, 0xb8, 0xb4, 0x7a, 0xfc, 0x02, 0x36, 0x5b, 0x25, 0x55, 0x97, 0x31, + 0x2d, 0x5d, 0xfa, 0x98, 0xe3, 0x8a, 0x92, 0xae, 0x05, 0xdf, 0x29, 0x10, 0x67, 0x6c, 0xba, 0xc9, + 0xd3, 0x00, 0xe6, 0xcf, 0xe1, 0x9e, 0xa8, 0x2c, 0x63, 0x16, 0x01, 0x3f, 0x58, 0xe2, 0x89, 0xa9, + 0x0d, 0x38, 0x34, 0x1b, 0xab, 0x33, 0xff, 0xb0, 0xbb, 0x48, 0x0c, 0x5f, 0xb9, 0xb1, 0xcd, 0x2e, + 0xc5, 0xf3, 0xdb, 0x47, 0xe5, 0xa5, 0x9c, 0x77, 0x0a, 0xa6, 0x20, 0x68, 0xfe, 0x7f, 0xc1, 0xad +]; + +var s = [1, 2, 3, 5]; + +/** + * Rotate a word left by given number of bits. + * + * Bits that are shifted out on the left are put back in on the right + * hand side. + * + * @param word The word to shift left. + * @param bits The number of bits to shift by. + * @return The rotated word. + */ +var rol = function(word, bits) { + return ((word << bits) & 0xffff) | ((word & 0xffff) >> (16 - bits)); +}; + +/** + * Rotate a word right by given number of bits. + * + * Bits that are shifted out on the right are put back in on the left + * hand side. + * + * @param word The word to shift right. + * @param bits The number of bits to shift by. + * @return The rotated word. + */ +var ror = function(word, bits) { + return ((word & 0xffff) >> bits) | ((word << (16 - bits)) & 0xffff); +}; + +/* RC2 API */ +module.exports = forge.rc2 = forge.rc2 || {}; + +/** + * Perform RC2 key expansion as per RFC #2268, section 2. + * + * @param key variable-length user key (between 1 and 128 bytes) + * @param effKeyBits number of effective key bits (default: 128) + * @return the expanded RC2 key (ByteBuffer of 128 bytes) + */ +forge.rc2.expandKey = function(key, effKeyBits) { + if(typeof key === 'string') { + key = forge.util.createBuffer(key); + } + effKeyBits = effKeyBits || 128; + + /* introduce variables that match the names used in RFC #2268 */ + var L = key; + var T = key.length(); + var T1 = effKeyBits; + var T8 = Math.ceil(T1 / 8); + var TM = 0xff >> (T1 & 0x07); + var i; + + for(i = T; i < 128; i++) { + L.putByte(piTable[(L.at(i - 1) + L.at(i - T)) & 0xff]); + } + + L.setAt(128 - T8, piTable[L.at(128 - T8) & TM]); + + for(i = 127 - T8; i >= 0; i--) { + L.setAt(i, piTable[L.at(i + 1) ^ L.at(i + T8)]); + } + + return L; +}; + +/** + * Creates a RC2 cipher object. + * + * @param key the symmetric key to use (as base for key generation). + * @param bits the number of effective key bits. + * @param encrypt false for decryption, true for encryption. + * + * @return the cipher. + */ +var createCipher = function(key, bits, encrypt) { + var _finish = false, _input = null, _output = null, _iv = null; + var mixRound, mashRound; + var i, j, K = []; + + /* Expand key and fill into K[] Array */ + key = forge.rc2.expandKey(key, bits); + for(i = 0; i < 64; i++) { + K.push(key.getInt16Le()); + } + + if(encrypt) { + /** + * Perform one mixing round "in place". + * + * @param R Array of four words to perform mixing on. + */ + mixRound = function(R) { + for(i = 0; i < 4; i++) { + R[i] += K[j] + (R[(i + 3) % 4] & R[(i + 2) % 4]) + + ((~R[(i + 3) % 4]) & R[(i + 1) % 4]); + R[i] = rol(R[i], s[i]); + j++; + } + }; + + /** + * Perform one mashing round "in place". + * + * @param R Array of four words to perform mashing on. + */ + mashRound = function(R) { + for(i = 0; i < 4; i++) { + R[i] += K[R[(i + 3) % 4] & 63]; + } + }; + } else { + /** + * Perform one r-mixing round "in place". + * + * @param R Array of four words to perform mixing on. + */ + mixRound = function(R) { + for(i = 3; i >= 0; i--) { + R[i] = ror(R[i], s[i]); + R[i] -= K[j] + (R[(i + 3) % 4] & R[(i + 2) % 4]) + + ((~R[(i + 3) % 4]) & R[(i + 1) % 4]); + j--; + } + }; + + /** + * Perform one r-mashing round "in place". + * + * @param R Array of four words to perform mashing on. + */ + mashRound = function(R) { + for(i = 3; i >= 0; i--) { + R[i] -= K[R[(i + 3) % 4] & 63]; + } + }; + } + + /** + * Run the specified cipher execution plan. + * + * This function takes four words from the input buffer, applies the IV on + * it (if requested) and runs the provided execution plan. + * + * The plan must be put together in form of a array of arrays. Where the + * outer one is simply a list of steps to perform and the inner one needs + * to have two elements: the first one telling how many rounds to perform, + * the second one telling what to do (i.e. the function to call). + * + * @param {Array} plan The plan to execute. + */ + var runPlan = function(plan) { + var R = []; + + /* Get data from input buffer and fill the four words into R */ + for(i = 0; i < 4; i++) { + var val = _input.getInt16Le(); + + if(_iv !== null) { + if(encrypt) { + /* We're encrypting, apply the IV first. */ + val ^= _iv.getInt16Le(); + } else { + /* We're decryption, keep cipher text for next block. */ + _iv.putInt16Le(val); + } + } + + R.push(val & 0xffff); + } + + /* Reset global "j" variable as per spec. */ + j = encrypt ? 0 : 63; + + /* Run execution plan. */ + for(var ptr = 0; ptr < plan.length; ptr++) { + for(var ctr = 0; ctr < plan[ptr][0]; ctr++) { + plan[ptr][1](R); + } + } + + /* Write back result to output buffer. */ + for(i = 0; i < 4; i++) { + if(_iv !== null) { + if(encrypt) { + /* We're encrypting in CBC-mode, feed back encrypted bytes into + IV buffer to carry it forward to next block. */ + _iv.putInt16Le(R[i]); + } else { + R[i] ^= _iv.getInt16Le(); + } + } + + _output.putInt16Le(R[i]); + } + }; + + /* Create cipher object */ + var cipher = null; + cipher = { + /** + * Starts or restarts the encryption or decryption process, whichever + * was previously configured. + * + * To use the cipher in CBC mode, iv may be given either as a string + * of bytes, or as a byte buffer. For ECB mode, give null as iv. + * + * @param iv the initialization vector to use, null for ECB mode. + * @param output the output the buffer to write to, null to create one. + */ + start: function(iv, output) { + if(iv) { + /* CBC mode */ + if(typeof iv === 'string') { + iv = forge.util.createBuffer(iv); + } + } + + _finish = false; + _input = forge.util.createBuffer(); + _output = output || new forge.util.createBuffer(); + _iv = iv; + + cipher.output = _output; + }, + + /** + * Updates the next block. + * + * @param input the buffer to read from. + */ + update: function(input) { + if(!_finish) { + // not finishing, so fill the input buffer with more input + _input.putBuffer(input); + } + + while(_input.length() >= 8) { + runPlan([ + [ 5, mixRound ], + [ 1, mashRound ], + [ 6, mixRound ], + [ 1, mashRound ], + [ 5, mixRound ] + ]); + } + }, + + /** + * Finishes encrypting or decrypting. + * + * @param pad a padding function to use, null for PKCS#7 padding, + * signature(blockSize, buffer, decrypt). + * + * @return true if successful, false on error. + */ + finish: function(pad) { + var rval = true; + + if(encrypt) { + if(pad) { + rval = pad(8, _input, !encrypt); + } else { + // add PKCS#7 padding to block (each pad byte is the + // value of the number of pad bytes) + var padding = (_input.length() === 8) ? 8 : (8 - _input.length()); + _input.fillWithByte(padding, padding); + } + } + + if(rval) { + // do final update + _finish = true; + cipher.update(); + } + + if(!encrypt) { + // check for error: input data not a multiple of block size + rval = (_input.length() === 0); + if(rval) { + if(pad) { + rval = pad(8, _output, !encrypt); + } else { + // ensure padding byte count is valid + var len = _output.length(); + var count = _output.at(len - 1); + + if(count > len) { + rval = false; + } else { + // trim off padding bytes + _output.truncate(count); + } + } + } + } + + return rval; + } + }; + + return cipher; +}; + +/** + * Creates an RC2 cipher object to encrypt data in ECB or CBC mode using the + * given symmetric key. The output will be stored in the 'output' member + * of the returned cipher. + * + * The key and iv may be given as a string of bytes or a byte buffer. + * The cipher is initialized to use 128 effective key bits. + * + * @param key the symmetric key to use. + * @param iv the initialization vector to use. + * @param output the buffer to write to, null to create one. + * + * @return the cipher. + */ +forge.rc2.startEncrypting = function(key, iv, output) { + var cipher = forge.rc2.createEncryptionCipher(key, 128); + cipher.start(iv, output); + return cipher; +}; + +/** + * Creates an RC2 cipher object to encrypt data in ECB or CBC mode using the + * given symmetric key. + * + * The key may be given as a string of bytes or a byte buffer. + * + * To start encrypting call start() on the cipher with an iv and optional + * output buffer. + * + * @param key the symmetric key to use. + * + * @return the cipher. + */ +forge.rc2.createEncryptionCipher = function(key, bits) { + return createCipher(key, bits, true); +}; + +/** + * Creates an RC2 cipher object to decrypt data in ECB or CBC mode using the + * given symmetric key. The output will be stored in the 'output' member + * of the returned cipher. + * + * The key and iv may be given as a string of bytes or a byte buffer. + * The cipher is initialized to use 128 effective key bits. + * + * @param key the symmetric key to use. + * @param iv the initialization vector to use. + * @param output the buffer to write to, null to create one. + * + * @return the cipher. + */ +forge.rc2.startDecrypting = function(key, iv, output) { + var cipher = forge.rc2.createDecryptionCipher(key, 128); + cipher.start(iv, output); + return cipher; +}; + +/** + * Creates an RC2 cipher object to decrypt data in ECB or CBC mode using the + * given symmetric key. + * + * The key may be given as a string of bytes or a byte buffer. + * + * To start decrypting call start() on the cipher with an iv and optional + * output buffer. + * + * @param key the symmetric key to use. + * + * @return the cipher. + */ +forge.rc2.createDecryptionCipher = function(key, bits) { + return createCipher(key, bits, false); +}; diff --git a/node_modules/node-forge/lib/rsa.js b/node_modules/node-forge/lib/rsa.js new file mode 100644 index 0000000..5c73209 --- /dev/null +++ b/node_modules/node-forge/lib/rsa.js @@ -0,0 +1,1949 @@ +/** + * Javascript implementation of basic RSA algorithms. + * + * @author Dave Longley + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. + * + * The only algorithm currently supported for PKI is RSA. + * + * An RSA key is often stored in ASN.1 DER format. The SubjectPublicKeyInfo + * ASN.1 structure is composed of an algorithm of type AlgorithmIdentifier + * and a subjectPublicKey of type bit string. + * + * The AlgorithmIdentifier contains an Object Identifier (OID) and parameters + * for the algorithm, if any. In the case of RSA, there aren't any. + * + * SubjectPublicKeyInfo ::= SEQUENCE { + * algorithm AlgorithmIdentifier, + * subjectPublicKey BIT STRING + * } + * + * AlgorithmIdentifer ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters ANY DEFINED BY algorithm OPTIONAL + * } + * + * For an RSA public key, the subjectPublicKey is: + * + * RSAPublicKey ::= SEQUENCE { + * modulus INTEGER, -- n + * publicExponent INTEGER -- e + * } + * + * PrivateKeyInfo ::= SEQUENCE { + * version Version, + * privateKeyAlgorithm PrivateKeyAlgorithmIdentifier, + * privateKey PrivateKey, + * attributes [0] IMPLICIT Attributes OPTIONAL + * } + * + * Version ::= INTEGER + * PrivateKeyAlgorithmIdentifier ::= AlgorithmIdentifier + * PrivateKey ::= OCTET STRING + * Attributes ::= SET OF Attribute + * + * An RSA private key as the following structure: + * + * RSAPrivateKey ::= SEQUENCE { + * version Version, + * modulus INTEGER, -- n + * publicExponent INTEGER, -- e + * privateExponent INTEGER, -- d + * prime1 INTEGER, -- p + * prime2 INTEGER, -- q + * exponent1 INTEGER, -- d mod (p-1) + * exponent2 INTEGER, -- d mod (q-1) + * coefficient INTEGER -- (inverse of q) mod p + * } + * + * Version ::= INTEGER + * + * The OID for the RSA key algorithm is: 1.2.840.113549.1.1.1 + */ +var forge = require('./forge'); +require('./asn1'); +require('./jsbn'); +require('./oids'); +require('./pkcs1'); +require('./prime'); +require('./random'); +require('./util'); + +if(typeof BigInteger === 'undefined') { + var BigInteger = forge.jsbn.BigInteger; +} + +var _crypto = forge.util.isNodejs ? require('crypto') : null; + +// shortcut for asn.1 API +var asn1 = forge.asn1; + +// shortcut for util API +var util = forge.util; + +/* + * RSA encryption and decryption, see RFC 2313. + */ +forge.pki = forge.pki || {}; +module.exports = forge.pki.rsa = forge.rsa = forge.rsa || {}; +var pki = forge.pki; + +// for finding primes, which are 30k+i for i = 1, 7, 11, 13, 17, 19, 23, 29 +var GCD_30_DELTA = [6, 4, 2, 4, 2, 4, 6, 2]; + +// validator for a PrivateKeyInfo structure +var privateKeyValidator = { + // PrivateKeyInfo + name: 'PrivateKeyInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + // Version (INTEGER) + name: 'PrivateKeyInfo.version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyVersion' + }, { + // privateKeyAlgorithm + name: 'PrivateKeyInfo.privateKeyAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'AlgorithmIdentifier.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'privateKeyOid' + }] + }, { + // PrivateKey + name: 'PrivateKeyInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'privateKey' + }] +}; + +// validator for an RSA private key +var rsaPrivateKeyValidator = { + // RSAPrivateKey + name: 'RSAPrivateKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + // Version (INTEGER) + name: 'RSAPrivateKey.version', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyVersion' + }, { + // modulus (n) + name: 'RSAPrivateKey.modulus', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyModulus' + }, { + // publicExponent (e) + name: 'RSAPrivateKey.publicExponent', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyPublicExponent' + }, { + // privateExponent (d) + name: 'RSAPrivateKey.privateExponent', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyPrivateExponent' + }, { + // prime1 (p) + name: 'RSAPrivateKey.prime1', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyPrime1' + }, { + // prime2 (q) + name: 'RSAPrivateKey.prime2', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyPrime2' + }, { + // exponent1 (d mod (p-1)) + name: 'RSAPrivateKey.exponent1', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyExponent1' + }, { + // exponent2 (d mod (q-1)) + name: 'RSAPrivateKey.exponent2', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyExponent2' + }, { + // coefficient ((inverse of q) mod p) + name: 'RSAPrivateKey.coefficient', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'privateKeyCoefficient' + }] +}; + +// validator for an RSA public key +var rsaPublicKeyValidator = { + // RSAPublicKey + name: 'RSAPublicKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + // modulus (n) + name: 'RSAPublicKey.modulus', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'publicKeyModulus' + }, { + // publicExponent (e) + name: 'RSAPublicKey.exponent', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'publicKeyExponent' + }] +}; + +// validator for an SubjectPublicKeyInfo structure +// Note: Currently only works with an RSA public key +var publicKeyValidator = forge.pki.rsa.publicKeyValidator = { + name: 'SubjectPublicKeyInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'subjectPublicKeyInfo', + value: [{ + name: 'SubjectPublicKeyInfo.AlgorithmIdentifier', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'AlgorithmIdentifier.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'publicKeyOid' + }] + }, { + // subjectPublicKey + name: 'SubjectPublicKeyInfo.subjectPublicKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.BITSTRING, + constructed: false, + value: [{ + // RSAPublicKey + name: 'SubjectPublicKeyInfo.subjectPublicKey.RSAPublicKey', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + optional: true, + captureAsn1: 'rsaPublicKey' + }] + }] +}; + +// validator for a DigestInfo structure +var digestInfoValidator = { + name: 'DigestInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'DigestInfo.DigestAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'DigestInfo.DigestAlgorithm.algorithmIdentifier', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'algorithmIdentifier' + }, { + // NULL paramters + name: 'DigestInfo.DigestAlgorithm.parameters', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.NULL, + // captured only to check existence for md2 and md5 + capture: 'parameters', + optional: true, + constructed: false + }] + }, { + // digest + name: 'DigestInfo.digest', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OCTETSTRING, + constructed: false, + capture: 'digest' + }] +}; + +/** + * Wrap digest in DigestInfo object. + * + * This function implements EMSA-PKCS1-v1_5-ENCODE as per RFC 3447. + * + * DigestInfo ::= SEQUENCE { + * digestAlgorithm DigestAlgorithmIdentifier, + * digest Digest + * } + * + * DigestAlgorithmIdentifier ::= AlgorithmIdentifier + * Digest ::= OCTET STRING + * + * @param md the message digest object with the hash to sign. + * + * @return the encoded message (ready for RSA encrytion) + */ +var emsaPkcs1v15encode = function(md) { + // get the oid for the algorithm + var oid; + if(md.algorithm in pki.oids) { + oid = pki.oids[md.algorithm]; + } else { + var error = new Error('Unknown message digest algorithm.'); + error.algorithm = md.algorithm; + throw error; + } + var oidBytes = asn1.oidToDer(oid).getBytes(); + + // create the digest info + var digestInfo = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + var digestAlgorithm = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + digestAlgorithm.value.push(asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OID, false, oidBytes)); + digestAlgorithm.value.push(asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '')); + var digest = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, + false, md.digest().getBytes()); + digestInfo.value.push(digestAlgorithm); + digestInfo.value.push(digest); + + // encode digest info + return asn1.toDer(digestInfo).getBytes(); +}; + +/** + * Performs x^c mod n (RSA encryption or decryption operation). + * + * @param x the number to raise and mod. + * @param key the key to use. + * @param pub true if the key is public, false if private. + * + * @return the result of x^c mod n. + */ +var _modPow = function(x, key, pub) { + if(pub) { + return x.modPow(key.e, key.n); + } + + if(!key.p || !key.q) { + // allow calculation without CRT params (slow) + return x.modPow(key.d, key.n); + } + + // pre-compute dP, dQ, and qInv if necessary + if(!key.dP) { + key.dP = key.d.mod(key.p.subtract(BigInteger.ONE)); + } + if(!key.dQ) { + key.dQ = key.d.mod(key.q.subtract(BigInteger.ONE)); + } + if(!key.qInv) { + key.qInv = key.q.modInverse(key.p); + } + + /* Chinese remainder theorem (CRT) states: + + Suppose n1, n2, ..., nk are positive integers which are pairwise + coprime (n1 and n2 have no common factors other than 1). For any + integers x1, x2, ..., xk there exists an integer x solving the + system of simultaneous congruences (where ~= means modularly + congruent so a ~= b mod n means a mod n = b mod n): + + x ~= x1 mod n1 + x ~= x2 mod n2 + ... + x ~= xk mod nk + + This system of congruences has a single simultaneous solution x + between 0 and n - 1. Furthermore, each xk solution and x itself + is congruent modulo the product n = n1*n2*...*nk. + So x1 mod n = x2 mod n = xk mod n = x mod n. + + The single simultaneous solution x can be solved with the following + equation: + + x = sum(xi*ri*si) mod n where ri = n/ni and si = ri^-1 mod ni. + + Where x is less than n, xi = x mod ni. + + For RSA we are only concerned with k = 2. The modulus n = pq, where + p and q are coprime. The RSA decryption algorithm is: + + y = x^d mod n + + Given the above: + + x1 = x^d mod p + r1 = n/p = q + s1 = q^-1 mod p + x2 = x^d mod q + r2 = n/q = p + s2 = p^-1 mod q + + So y = (x1r1s1 + x2r2s2) mod n + = ((x^d mod p)q(q^-1 mod p) + (x^d mod q)p(p^-1 mod q)) mod n + + According to Fermat's Little Theorem, if the modulus P is prime, + for any integer A not evenly divisible by P, A^(P-1) ~= 1 mod P. + Since A is not divisible by P it follows that if: + N ~= M mod (P - 1), then A^N mod P = A^M mod P. Therefore: + + A^N mod P = A^(M mod (P - 1)) mod P. (The latter takes less effort + to calculate). In order to calculate x^d mod p more quickly the + exponent d mod (p - 1) is stored in the RSA private key (the same + is done for x^d mod q). These values are referred to as dP and dQ + respectively. Therefore we now have: + + y = ((x^dP mod p)q(q^-1 mod p) + (x^dQ mod q)p(p^-1 mod q)) mod n + + Since we'll be reducing x^dP by modulo p (same for q) we can also + reduce x by p (and q respectively) before hand. Therefore, let + + xp = ((x mod p)^dP mod p), and + xq = ((x mod q)^dQ mod q), yielding: + + y = (xp*q*(q^-1 mod p) + xq*p*(p^-1 mod q)) mod n + + This can be further reduced to a simple algorithm that only + requires 1 inverse (the q inverse is used) to be used and stored. + The algorithm is called Garner's algorithm. If qInv is the + inverse of q, we simply calculate: + + y = (qInv*(xp - xq) mod p) * q + xq + + However, there are two further complications. First, we need to + ensure that xp > xq to prevent signed BigIntegers from being used + so we add p until this is true (since we will be mod'ing with + p anyway). Then, there is a known timing attack on algorithms + using the CRT. To mitigate this risk, "cryptographic blinding" + should be used. This requires simply generating a random number r + between 0 and n-1 and its inverse and multiplying x by r^e before + calculating y and then multiplying y by r^-1 afterwards. Note that + r must be coprime with n (gcd(r, n) === 1) in order to have an + inverse. + */ + + // cryptographic blinding + var r; + do { + r = new BigInteger( + forge.util.bytesToHex(forge.random.getBytes(key.n.bitLength() / 8)), + 16); + } while(r.compareTo(key.n) >= 0 || !r.gcd(key.n).equals(BigInteger.ONE)); + x = x.multiply(r.modPow(key.e, key.n)).mod(key.n); + + // calculate xp and xq + var xp = x.mod(key.p).modPow(key.dP, key.p); + var xq = x.mod(key.q).modPow(key.dQ, key.q); + + // xp must be larger than xq to avoid signed bit usage + while(xp.compareTo(xq) < 0) { + xp = xp.add(key.p); + } + + // do last step + var y = xp.subtract(xq) + .multiply(key.qInv).mod(key.p) + .multiply(key.q).add(xq); + + // remove effect of random for cryptographic blinding + y = y.multiply(r.modInverse(key.n)).mod(key.n); + + return y; +}; + +/** + * NOTE: THIS METHOD IS DEPRECATED, use 'sign' on a private key object or + * 'encrypt' on a public key object instead. + * + * Performs RSA encryption. + * + * The parameter bt controls whether to put padding bytes before the + * message passed in. Set bt to either true or false to disable padding + * completely (in order to handle e.g. EMSA-PSS encoding seperately before), + * signaling whether the encryption operation is a public key operation + * (i.e. encrypting data) or not, i.e. private key operation (data signing). + * + * For PKCS#1 v1.5 padding pass in the block type to use, i.e. either 0x01 + * (for signing) or 0x02 (for encryption). The key operation mode (private + * or public) is derived from this flag in that case). + * + * @param m the message to encrypt as a byte string. + * @param key the RSA key to use. + * @param bt for PKCS#1 v1.5 padding, the block type to use + * (0x01 for private key, 0x02 for public), + * to disable padding: true = public key, false = private key. + * + * @return the encrypted bytes as a string. + */ +pki.rsa.encrypt = function(m, key, bt) { + var pub = bt; + var eb; + + // get the length of the modulus in bytes + var k = Math.ceil(key.n.bitLength() / 8); + + if(bt !== false && bt !== true) { + // legacy, default to PKCS#1 v1.5 padding + pub = (bt === 0x02); + eb = _encodePkcs1_v1_5(m, key, bt); + } else { + eb = forge.util.createBuffer(); + eb.putBytes(m); + } + + // load encryption block as big integer 'x' + // FIXME: hex conversion inefficient, get BigInteger w/byte strings + var x = new BigInteger(eb.toHex(), 16); + + // do RSA encryption + var y = _modPow(x, key, pub); + + // convert y into the encrypted data byte string, if y is shorter in + // bytes than k, then prepend zero bytes to fill up ed + // FIXME: hex conversion inefficient, get BigInteger w/byte strings + var yhex = y.toString(16); + var ed = forge.util.createBuffer(); + var zeros = k - Math.ceil(yhex.length / 2); + while(zeros > 0) { + ed.putByte(0x00); + --zeros; + } + ed.putBytes(forge.util.hexToBytes(yhex)); + return ed.getBytes(); +}; + +/** + * NOTE: THIS METHOD IS DEPRECATED, use 'decrypt' on a private key object or + * 'verify' on a public key object instead. + * + * Performs RSA decryption. + * + * The parameter ml controls whether to apply PKCS#1 v1.5 padding + * or not. Set ml = false to disable padding removal completely + * (in order to handle e.g. EMSA-PSS later on) and simply pass back + * the RSA encryption block. + * + * @param ed the encrypted data to decrypt in as a byte string. + * @param key the RSA key to use. + * @param pub true for a public key operation, false for private. + * @param ml the message length, if known, false to disable padding. + * + * @return the decrypted message as a byte string. + */ +pki.rsa.decrypt = function(ed, key, pub, ml) { + // get the length of the modulus in bytes + var k = Math.ceil(key.n.bitLength() / 8); + + // error if the length of the encrypted data ED is not k + if(ed.length !== k) { + var error = new Error('Encrypted message length is invalid.'); + error.length = ed.length; + error.expected = k; + throw error; + } + + // convert encrypted data into a big integer + // FIXME: hex conversion inefficient, get BigInteger w/byte strings + var y = new BigInteger(forge.util.createBuffer(ed).toHex(), 16); + + // y must be less than the modulus or it wasn't the result of + // a previous mod operation (encryption) using that modulus + if(y.compareTo(key.n) >= 0) { + throw new Error('Encrypted message is invalid.'); + } + + // do RSA decryption + var x = _modPow(y, key, pub); + + // create the encryption block, if x is shorter in bytes than k, then + // prepend zero bytes to fill up eb + // FIXME: hex conversion inefficient, get BigInteger w/byte strings + var xhex = x.toString(16); + var eb = forge.util.createBuffer(); + var zeros = k - Math.ceil(xhex.length / 2); + while(zeros > 0) { + eb.putByte(0x00); + --zeros; + } + eb.putBytes(forge.util.hexToBytes(xhex)); + + if(ml !== false) { + // legacy, default to PKCS#1 v1.5 padding + return _decodePkcs1_v1_5(eb.getBytes(), key, pub); + } + + // return message + return eb.getBytes(); +}; + +/** + * Creates an RSA key-pair generation state object. It is used to allow + * key-generation to be performed in steps. It also allows for a UI to + * display progress updates. + * + * @param bits the size for the private key in bits, defaults to 2048. + * @param e the public exponent to use, defaults to 65537 (0x10001). + * @param [options] the options to use. + * prng a custom crypto-secure pseudo-random number generator to use, + * that must define "getBytesSync". + * algorithm the algorithm to use (default: 'PRIMEINC'). + * + * @return the state object to use to generate the key-pair. + */ +pki.rsa.createKeyPairGenerationState = function(bits, e, options) { + // TODO: migrate step-based prime generation code to forge.prime + + // set default bits + if(typeof(bits) === 'string') { + bits = parseInt(bits, 10); + } + bits = bits || 2048; + + // create prng with api that matches BigInteger secure random + options = options || {}; + var prng = options.prng || forge.random; + var rng = { + // x is an array to fill with bytes + nextBytes: function(x) { + var b = prng.getBytesSync(x.length); + for(var i = 0; i < x.length; ++i) { + x[i] = b.charCodeAt(i); + } + } + }; + + var algorithm = options.algorithm || 'PRIMEINC'; + + // create PRIMEINC algorithm state + var rval; + if(algorithm === 'PRIMEINC') { + rval = { + algorithm: algorithm, + state: 0, + bits: bits, + rng: rng, + eInt: e || 65537, + e: new BigInteger(null), + p: null, + q: null, + qBits: bits >> 1, + pBits: bits - (bits >> 1), + pqState: 0, + num: null, + keys: null + }; + rval.e.fromInt(rval.eInt); + } else { + throw new Error('Invalid key generation algorithm: ' + algorithm); + } + + return rval; +}; + +/** + * Attempts to runs the key-generation algorithm for at most n seconds + * (approximately) using the given state. When key-generation has completed, + * the keys will be stored in state.keys. + * + * To use this function to update a UI while generating a key or to prevent + * causing browser lockups/warnings, set "n" to a value other than 0. A + * simple pattern for generating a key and showing a progress indicator is: + * + * var state = pki.rsa.createKeyPairGenerationState(2048); + * var step = function() { + * // step key-generation, run algorithm for 100 ms, repeat + * if(!forge.pki.rsa.stepKeyPairGenerationState(state, 100)) { + * setTimeout(step, 1); + * } else { + * // key-generation complete + * // TODO: turn off progress indicator here + * // TODO: use the generated key-pair in "state.keys" + * } + * }; + * // TODO: turn on progress indicator here + * setTimeout(step, 0); + * + * @param state the state to use. + * @param n the maximum number of milliseconds to run the algorithm for, 0 + * to run the algorithm to completion. + * + * @return true if the key-generation completed, false if not. + */ +pki.rsa.stepKeyPairGenerationState = function(state, n) { + // set default algorithm if not set + if(!('algorithm' in state)) { + state.algorithm = 'PRIMEINC'; + } + + // TODO: migrate step-based prime generation code to forge.prime + // TODO: abstract as PRIMEINC algorithm + + // do key generation (based on Tom Wu's rsa.js, see jsbn.js license) + // with some minor optimizations and designed to run in steps + + // local state vars + var THIRTY = new BigInteger(null); + THIRTY.fromInt(30); + var deltaIdx = 0; + var op_or = function(x, y) {return x | y;}; + + // keep stepping until time limit is reached or done + var t1 = +new Date(); + var t2; + var total = 0; + while(state.keys === null && (n <= 0 || total < n)) { + // generate p or q + if(state.state === 0) { + /* Note: All primes are of the form: + + 30k+i, for i < 30 and gcd(30, i)=1, where there are 8 values for i + + When we generate a random number, we always align it at 30k + 1. Each + time the number is determined not to be prime we add to get to the + next 'i', eg: if the number was at 30k + 1 we add 6. */ + var bits = (state.p === null) ? state.pBits : state.qBits; + var bits1 = bits - 1; + + // get a random number + if(state.pqState === 0) { + state.num = new BigInteger(bits, state.rng); + // force MSB set + if(!state.num.testBit(bits1)) { + state.num.bitwiseTo( + BigInteger.ONE.shiftLeft(bits1), op_or, state.num); + } + // align number on 30k+1 boundary + state.num.dAddOffset(31 - state.num.mod(THIRTY).byteValue(), 0); + deltaIdx = 0; + + ++state.pqState; + } else if(state.pqState === 1) { + // try to make the number a prime + if(state.num.bitLength() > bits) { + // overflow, try again + state.pqState = 0; + // do primality test + } else if(state.num.isProbablePrime( + _getMillerRabinTests(state.num.bitLength()))) { + ++state.pqState; + } else { + // get next potential prime + state.num.dAddOffset(GCD_30_DELTA[deltaIdx++ % 8], 0); + } + } else if(state.pqState === 2) { + // ensure number is coprime with e + state.pqState = + (state.num.subtract(BigInteger.ONE).gcd(state.e) + .compareTo(BigInteger.ONE) === 0) ? 3 : 0; + } else if(state.pqState === 3) { + // store p or q + state.pqState = 0; + if(state.p === null) { + state.p = state.num; + } else { + state.q = state.num; + } + + // advance state if both p and q are ready + if(state.p !== null && state.q !== null) { + ++state.state; + } + state.num = null; + } + } else if(state.state === 1) { + // ensure p is larger than q (swap them if not) + if(state.p.compareTo(state.q) < 0) { + state.num = state.p; + state.p = state.q; + state.q = state.num; + } + ++state.state; + } else if(state.state === 2) { + // compute phi: (p - 1)(q - 1) (Euler's totient function) + state.p1 = state.p.subtract(BigInteger.ONE); + state.q1 = state.q.subtract(BigInteger.ONE); + state.phi = state.p1.multiply(state.q1); + ++state.state; + } else if(state.state === 3) { + // ensure e and phi are coprime + if(state.phi.gcd(state.e).compareTo(BigInteger.ONE) === 0) { + // phi and e are coprime, advance + ++state.state; + } else { + // phi and e aren't coprime, so generate a new p and q + state.p = null; + state.q = null; + state.state = 0; + } + } else if(state.state === 4) { + // create n, ensure n is has the right number of bits + state.n = state.p.multiply(state.q); + + // ensure n is right number of bits + if(state.n.bitLength() === state.bits) { + // success, advance + ++state.state; + } else { + // failed, get new q + state.q = null; + state.state = 0; + } + } else if(state.state === 5) { + // set keys + var d = state.e.modInverse(state.phi); + state.keys = { + privateKey: pki.rsa.setPrivateKey( + state.n, state.e, d, state.p, state.q, + d.mod(state.p1), d.mod(state.q1), + state.q.modInverse(state.p)), + publicKey: pki.rsa.setPublicKey(state.n, state.e) + }; + } + + // update timing + t2 = +new Date(); + total += t2 - t1; + t1 = t2; + } + + return state.keys !== null; +}; + +/** + * Generates an RSA public-private key pair in a single call. + * + * To generate a key-pair in steps (to allow for progress updates and to + * prevent blocking or warnings in slow browsers) then use the key-pair + * generation state functions. + * + * To generate a key-pair asynchronously (either through web-workers, if + * available, or by breaking up the work on the main thread), pass a + * callback function. + * + * @param [bits] the size for the private key in bits, defaults to 2048. + * @param [e] the public exponent to use, defaults to 65537. + * @param [options] options for key-pair generation, if given then 'bits' + * and 'e' must *not* be given: + * bits the size for the private key in bits, (default: 2048). + * e the public exponent to use, (default: 65537 (0x10001)). + * workerScript the worker script URL. + * workers the number of web workers (if supported) to use, + * (default: 2). + * workLoad the size of the work load, ie: number of possible prime + * numbers for each web worker to check per work assignment, + * (default: 100). + * prng a custom crypto-secure pseudo-random number generator to use, + * that must define "getBytesSync". Disables use of native APIs. + * algorithm the algorithm to use (default: 'PRIMEINC'). + * @param [callback(err, keypair)] called once the operation completes. + * + * @return an object with privateKey and publicKey properties. + */ +pki.rsa.generateKeyPair = function(bits, e, options, callback) { + // (bits), (options), (callback) + if(arguments.length === 1) { + if(typeof bits === 'object') { + options = bits; + bits = undefined; + } else if(typeof bits === 'function') { + callback = bits; + bits = undefined; + } + } else if(arguments.length === 2) { + // (bits, e), (bits, options), (bits, callback), (options, callback) + if(typeof bits === 'number') { + if(typeof e === 'function') { + callback = e; + e = undefined; + } else if(typeof e !== 'number') { + options = e; + e = undefined; + } + } else { + options = bits; + callback = e; + bits = undefined; + e = undefined; + } + } else if(arguments.length === 3) { + // (bits, e, options), (bits, e, callback), (bits, options, callback) + if(typeof e === 'number') { + if(typeof options === 'function') { + callback = options; + options = undefined; + } + } else { + callback = options; + options = e; + e = undefined; + } + } + options = options || {}; + if(bits === undefined) { + bits = options.bits || 2048; + } + if(e === undefined) { + e = options.e || 0x10001; + } + + // use native code if permitted, available, and parameters are acceptable + if(!forge.options.usePureJavaScript && !options.prng && + bits >= 256 && bits <= 16384 && (e === 0x10001 || e === 3)) { + if(callback) { + // try native async + if(_detectNodeCrypto('generateKeyPair')) { + return _crypto.generateKeyPair('rsa', { + modulusLength: bits, + publicExponent: e, + publicKeyEncoding: { + type: 'spki', + format: 'pem' + }, + privateKeyEncoding: { + type: 'pkcs8', + format: 'pem' + } + }, function(err, pub, priv) { + if(err) { + return callback(err); + } + callback(null, { + privateKey: pki.privateKeyFromPem(priv), + publicKey: pki.publicKeyFromPem(pub) + }); + }); + } + if(_detectSubtleCrypto('generateKey') && + _detectSubtleCrypto('exportKey')) { + // use standard native generateKey + return util.globalScope.crypto.subtle.generateKey({ + name: 'RSASSA-PKCS1-v1_5', + modulusLength: bits, + publicExponent: _intToUint8Array(e), + hash: {name: 'SHA-256'} + }, true /* key can be exported*/, ['sign', 'verify']) + .then(function(pair) { + return util.globalScope.crypto.subtle.exportKey( + 'pkcs8', pair.privateKey); + // avoiding catch(function(err) {...}) to support IE <= 8 + }).then(undefined, function(err) { + callback(err); + }).then(function(pkcs8) { + if(pkcs8) { + var privateKey = pki.privateKeyFromAsn1( + asn1.fromDer(forge.util.createBuffer(pkcs8))); + callback(null, { + privateKey: privateKey, + publicKey: pki.setRsaPublicKey(privateKey.n, privateKey.e) + }); + } + }); + } + if(_detectSubtleMsCrypto('generateKey') && + _detectSubtleMsCrypto('exportKey')) { + var genOp = util.globalScope.msCrypto.subtle.generateKey({ + name: 'RSASSA-PKCS1-v1_5', + modulusLength: bits, + publicExponent: _intToUint8Array(e), + hash: {name: 'SHA-256'} + }, true /* key can be exported*/, ['sign', 'verify']); + genOp.oncomplete = function(e) { + var pair = e.target.result; + var exportOp = util.globalScope.msCrypto.subtle.exportKey( + 'pkcs8', pair.privateKey); + exportOp.oncomplete = function(e) { + var pkcs8 = e.target.result; + var privateKey = pki.privateKeyFromAsn1( + asn1.fromDer(forge.util.createBuffer(pkcs8))); + callback(null, { + privateKey: privateKey, + publicKey: pki.setRsaPublicKey(privateKey.n, privateKey.e) + }); + }; + exportOp.onerror = function(err) { + callback(err); + }; + }; + genOp.onerror = function(err) { + callback(err); + }; + return; + } + } else { + // try native sync + if(_detectNodeCrypto('generateKeyPairSync')) { + var keypair = _crypto.generateKeyPairSync('rsa', { + modulusLength: bits, + publicExponent: e, + publicKeyEncoding: { + type: 'spki', + format: 'pem' + }, + privateKeyEncoding: { + type: 'pkcs8', + format: 'pem' + } + }); + return { + privateKey: pki.privateKeyFromPem(keypair.privateKey), + publicKey: pki.publicKeyFromPem(keypair.publicKey) + }; + } + } + } + + // use JavaScript implementation + var state = pki.rsa.createKeyPairGenerationState(bits, e, options); + if(!callback) { + pki.rsa.stepKeyPairGenerationState(state, 0); + return state.keys; + } + _generateKeyPair(state, options, callback); +}; + +/** + * Sets an RSA public key from BigIntegers modulus and exponent. + * + * @param n the modulus. + * @param e the exponent. + * + * @return the public key. + */ +pki.setRsaPublicKey = pki.rsa.setPublicKey = function(n, e) { + var key = { + n: n, + e: e + }; + + /** + * Encrypts the given data with this public key. Newer applications + * should use the 'RSA-OAEP' decryption scheme, 'RSAES-PKCS1-V1_5' is for + * legacy applications. + * + * @param data the byte string to encrypt. + * @param scheme the encryption scheme to use: + * 'RSAES-PKCS1-V1_5' (default), + * 'RSA-OAEP', + * 'RAW', 'NONE', or null to perform raw RSA encryption, + * an object with an 'encode' property set to a function + * with the signature 'function(data, key)' that returns + * a binary-encoded string representing the encoded data. + * @param schemeOptions any scheme-specific options. + * + * @return the encrypted byte string. + */ + key.encrypt = function(data, scheme, schemeOptions) { + if(typeof scheme === 'string') { + scheme = scheme.toUpperCase(); + } else if(scheme === undefined) { + scheme = 'RSAES-PKCS1-V1_5'; + } + + if(scheme === 'RSAES-PKCS1-V1_5') { + scheme = { + encode: function(m, key, pub) { + return _encodePkcs1_v1_5(m, key, 0x02).getBytes(); + } + }; + } else if(scheme === 'RSA-OAEP' || scheme === 'RSAES-OAEP') { + scheme = { + encode: function(m, key) { + return forge.pkcs1.encode_rsa_oaep(key, m, schemeOptions); + } + }; + } else if(['RAW', 'NONE', 'NULL', null].indexOf(scheme) !== -1) { + scheme = {encode: function(e) {return e;}}; + } else if(typeof scheme === 'string') { + throw new Error('Unsupported encryption scheme: "' + scheme + '".'); + } + + // do scheme-based encoding then rsa encryption + var e = scheme.encode(data, key, true); + return pki.rsa.encrypt(e, key, true); + }; + + /** + * Verifies the given signature against the given digest. + * + * PKCS#1 supports multiple (currently two) signature schemes: + * RSASSA-PKCS1-V1_5 and RSASSA-PSS. + * + * By default this implementation uses the "old scheme", i.e. + * RSASSA-PKCS1-V1_5, in which case once RSA-decrypted, the + * signature is an OCTET STRING that holds a DigestInfo. + * + * DigestInfo ::= SEQUENCE { + * digestAlgorithm DigestAlgorithmIdentifier, + * digest Digest + * } + * DigestAlgorithmIdentifier ::= AlgorithmIdentifier + * Digest ::= OCTET STRING + * + * To perform PSS signature verification, provide an instance + * of Forge PSS object as the scheme parameter. + * + * @param digest the message digest hash to compare against the signature, + * as a binary-encoded string. + * @param signature the signature to verify, as a binary-encoded string. + * @param scheme signature verification scheme to use: + * 'RSASSA-PKCS1-V1_5' or undefined for RSASSA PKCS#1 v1.5, + * a Forge PSS object for RSASSA-PSS, + * 'NONE' or null for none, DigestInfo will not be expected, but + * PKCS#1 v1.5 padding will still be used. + * @param options optional verify options + * _parseAllDigestBytes testing flag to control parsing of all + * digest bytes. Unsupported and not for general usage. + * (default: true) + * + * @return true if the signature was verified, false if not. + */ + key.verify = function(digest, signature, scheme, options) { + if(typeof scheme === 'string') { + scheme = scheme.toUpperCase(); + } else if(scheme === undefined) { + scheme = 'RSASSA-PKCS1-V1_5'; + } + if(options === undefined) { + options = { + _parseAllDigestBytes: true + }; + } + if(!('_parseAllDigestBytes' in options)) { + options._parseAllDigestBytes = true; + } + + if(scheme === 'RSASSA-PKCS1-V1_5') { + scheme = { + verify: function(digest, d) { + // remove padding + d = _decodePkcs1_v1_5(d, key, true); + // d is ASN.1 BER-encoded DigestInfo + var obj = asn1.fromDer(d, { + parseAllBytes: options._parseAllDigestBytes + }); + + // validate DigestInfo + var capture = {}; + var errors = []; + if(!asn1.validate(obj, digestInfoValidator, capture, errors)) { + var error = new Error( + 'ASN.1 object does not contain a valid RSASSA-PKCS1-v1_5 ' + + 'DigestInfo value.'); + error.errors = errors; + throw error; + } + // check hash algorithm identifier + // see PKCS1-v1-5DigestAlgorithms in RFC 8017 + // FIXME: add support to vaidator for strict value choices + var oid = asn1.derToOid(capture.algorithmIdentifier); + if(!(oid === forge.oids.md2 || + oid === forge.oids.md5 || + oid === forge.oids.sha1 || + oid === forge.oids.sha224 || + oid === forge.oids.sha256 || + oid === forge.oids.sha384 || + oid === forge.oids.sha512 || + oid === forge.oids['sha512-224'] || + oid === forge.oids['sha512-256'])) { + var error = new Error( + 'Unknown RSASSA-PKCS1-v1_5 DigestAlgorithm identifier.'); + error.oid = oid; + throw error; + } + + // special check for md2 and md5 that NULL parameters exist + if(oid === forge.oids.md2 || oid === forge.oids.md5) { + if(!('parameters' in capture)) { + throw new Error( + 'ASN.1 object does not contain a valid RSASSA-PKCS1-v1_5 ' + + 'DigestInfo value. ' + + 'Missing algorithm identifer NULL parameters.'); + } + } + + // compare the given digest to the decrypted one + return digest === capture.digest; + } + }; + } else if(scheme === 'NONE' || scheme === 'NULL' || scheme === null) { + scheme = { + verify: function(digest, d) { + // remove padding + d = _decodePkcs1_v1_5(d, key, true); + return digest === d; + } + }; + } + + // do rsa decryption w/o any decoding, then verify -- which does decoding + var d = pki.rsa.decrypt(signature, key, true, false); + return scheme.verify(digest, d, key.n.bitLength()); + }; + + return key; +}; + +/** + * Sets an RSA private key from BigIntegers modulus, exponent, primes, + * prime exponents, and modular multiplicative inverse. + * + * @param n the modulus. + * @param e the public exponent. + * @param d the private exponent ((inverse of e) mod n). + * @param p the first prime. + * @param q the second prime. + * @param dP exponent1 (d mod (p-1)). + * @param dQ exponent2 (d mod (q-1)). + * @param qInv ((inverse of q) mod p) + * + * @return the private key. + */ +pki.setRsaPrivateKey = pki.rsa.setPrivateKey = function( + n, e, d, p, q, dP, dQ, qInv) { + var key = { + n: n, + e: e, + d: d, + p: p, + q: q, + dP: dP, + dQ: dQ, + qInv: qInv + }; + + /** + * Decrypts the given data with this private key. The decryption scheme + * must match the one used to encrypt the data. + * + * @param data the byte string to decrypt. + * @param scheme the decryption scheme to use: + * 'RSAES-PKCS1-V1_5' (default), + * 'RSA-OAEP', + * 'RAW', 'NONE', or null to perform raw RSA decryption. + * @param schemeOptions any scheme-specific options. + * + * @return the decrypted byte string. + */ + key.decrypt = function(data, scheme, schemeOptions) { + if(typeof scheme === 'string') { + scheme = scheme.toUpperCase(); + } else if(scheme === undefined) { + scheme = 'RSAES-PKCS1-V1_5'; + } + + // do rsa decryption w/o any decoding + var d = pki.rsa.decrypt(data, key, false, false); + + if(scheme === 'RSAES-PKCS1-V1_5') { + scheme = {decode: _decodePkcs1_v1_5}; + } else if(scheme === 'RSA-OAEP' || scheme === 'RSAES-OAEP') { + scheme = { + decode: function(d, key) { + return forge.pkcs1.decode_rsa_oaep(key, d, schemeOptions); + } + }; + } else if(['RAW', 'NONE', 'NULL', null].indexOf(scheme) !== -1) { + scheme = {decode: function(d) {return d;}}; + } else { + throw new Error('Unsupported encryption scheme: "' + scheme + '".'); + } + + // decode according to scheme + return scheme.decode(d, key, false); + }; + + /** + * Signs the given digest, producing a signature. + * + * PKCS#1 supports multiple (currently two) signature schemes: + * RSASSA-PKCS1-V1_5 and RSASSA-PSS. + * + * By default this implementation uses the "old scheme", i.e. + * RSASSA-PKCS1-V1_5. In order to generate a PSS signature, provide + * an instance of Forge PSS object as the scheme parameter. + * + * @param md the message digest object with the hash to sign. + * @param scheme the signature scheme to use: + * 'RSASSA-PKCS1-V1_5' or undefined for RSASSA PKCS#1 v1.5, + * a Forge PSS object for RSASSA-PSS, + * 'NONE' or null for none, DigestInfo will not be used but + * PKCS#1 v1.5 padding will still be used. + * + * @return the signature as a byte string. + */ + key.sign = function(md, scheme) { + /* Note: The internal implementation of RSA operations is being + transitioned away from a PKCS#1 v1.5 hard-coded scheme. Some legacy + code like the use of an encoding block identifier 'bt' will eventually + be removed. */ + + // private key operation + var bt = false; + + if(typeof scheme === 'string') { + scheme = scheme.toUpperCase(); + } + + if(scheme === undefined || scheme === 'RSASSA-PKCS1-V1_5') { + scheme = {encode: emsaPkcs1v15encode}; + bt = 0x01; + } else if(scheme === 'NONE' || scheme === 'NULL' || scheme === null) { + scheme = {encode: function() {return md;}}; + bt = 0x01; + } + + // encode and then encrypt + var d = scheme.encode(md, key.n.bitLength()); + return pki.rsa.encrypt(d, key, bt); + }; + + return key; +}; + +/** + * Wraps an RSAPrivateKey ASN.1 object in an ASN.1 PrivateKeyInfo object. + * + * @param rsaKey the ASN.1 RSAPrivateKey. + * + * @return the ASN.1 PrivateKeyInfo. + */ +pki.wrapRsaPrivateKey = function(rsaKey) { + // PrivateKeyInfo + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // version (0) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(0).getBytes()), + // privateKeyAlgorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.rsaEncryption).getBytes()), + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]), + // PrivateKey + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, + asn1.toDer(rsaKey).getBytes()) + ]); +}; + +/** + * Converts a private key from an ASN.1 object. + * + * @param obj the ASN.1 representation of a PrivateKeyInfo containing an + * RSAPrivateKey or an RSAPrivateKey. + * + * @return the private key. + */ +pki.privateKeyFromAsn1 = function(obj) { + // get PrivateKeyInfo + var capture = {}; + var errors = []; + if(asn1.validate(obj, privateKeyValidator, capture, errors)) { + obj = asn1.fromDer(forge.util.createBuffer(capture.privateKey)); + } + + // get RSAPrivateKey + capture = {}; + errors = []; + if(!asn1.validate(obj, rsaPrivateKeyValidator, capture, errors)) { + var error = new Error('Cannot read private key. ' + + 'ASN.1 object does not contain an RSAPrivateKey.'); + error.errors = errors; + throw error; + } + + // Note: Version is currently ignored. + // capture.privateKeyVersion + // FIXME: inefficient, get a BigInteger that uses byte strings + var n, e, d, p, q, dP, dQ, qInv; + n = forge.util.createBuffer(capture.privateKeyModulus).toHex(); + e = forge.util.createBuffer(capture.privateKeyPublicExponent).toHex(); + d = forge.util.createBuffer(capture.privateKeyPrivateExponent).toHex(); + p = forge.util.createBuffer(capture.privateKeyPrime1).toHex(); + q = forge.util.createBuffer(capture.privateKeyPrime2).toHex(); + dP = forge.util.createBuffer(capture.privateKeyExponent1).toHex(); + dQ = forge.util.createBuffer(capture.privateKeyExponent2).toHex(); + qInv = forge.util.createBuffer(capture.privateKeyCoefficient).toHex(); + + // set private key + return pki.setRsaPrivateKey( + new BigInteger(n, 16), + new BigInteger(e, 16), + new BigInteger(d, 16), + new BigInteger(p, 16), + new BigInteger(q, 16), + new BigInteger(dP, 16), + new BigInteger(dQ, 16), + new BigInteger(qInv, 16)); +}; + +/** + * Converts a private key to an ASN.1 RSAPrivateKey. + * + * @param key the private key. + * + * @return the ASN.1 representation of an RSAPrivateKey. + */ +pki.privateKeyToAsn1 = pki.privateKeyToRSAPrivateKey = function(key) { + // RSAPrivateKey + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // version (0 = only 2 primes, 1 multiple primes) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(0).getBytes()), + // modulus (n) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.n)), + // publicExponent (e) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.e)), + // privateExponent (d) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.d)), + // privateKeyPrime1 (p) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.p)), + // privateKeyPrime2 (q) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.q)), + // privateKeyExponent1 (dP) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.dP)), + // privateKeyExponent2 (dQ) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.dQ)), + // coefficient (qInv) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.qInv)) + ]); +}; + +/** + * Converts a public key from an ASN.1 SubjectPublicKeyInfo or RSAPublicKey. + * + * @param obj the asn1 representation of a SubjectPublicKeyInfo or RSAPublicKey. + * + * @return the public key. + */ +pki.publicKeyFromAsn1 = function(obj) { + // get SubjectPublicKeyInfo + var capture = {}; + var errors = []; + if(asn1.validate(obj, publicKeyValidator, capture, errors)) { + // get oid + var oid = asn1.derToOid(capture.publicKeyOid); + if(oid !== pki.oids.rsaEncryption) { + var error = new Error('Cannot read public key. Unknown OID.'); + error.oid = oid; + throw error; + } + obj = capture.rsaPublicKey; + } + + // get RSA params + errors = []; + if(!asn1.validate(obj, rsaPublicKeyValidator, capture, errors)) { + var error = new Error('Cannot read public key. ' + + 'ASN.1 object does not contain an RSAPublicKey.'); + error.errors = errors; + throw error; + } + + // FIXME: inefficient, get a BigInteger that uses byte strings + var n = forge.util.createBuffer(capture.publicKeyModulus).toHex(); + var e = forge.util.createBuffer(capture.publicKeyExponent).toHex(); + + // set public key + return pki.setRsaPublicKey( + new BigInteger(n, 16), + new BigInteger(e, 16)); +}; + +/** + * Converts a public key to an ASN.1 SubjectPublicKeyInfo. + * + * @param key the public key. + * + * @return the asn1 representation of a SubjectPublicKeyInfo. + */ +pki.publicKeyToAsn1 = pki.publicKeyToSubjectPublicKeyInfo = function(key) { + // SubjectPublicKeyInfo + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // AlgorithmIdentifier + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(pki.oids.rsaEncryption).getBytes()), + // parameters (null) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]), + // subjectPublicKey + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, [ + pki.publicKeyToRSAPublicKey(key) + ]) + ]); +}; + +/** + * Converts a public key to an ASN.1 RSAPublicKey. + * + * @param key the public key. + * + * @return the asn1 representation of a RSAPublicKey. + */ +pki.publicKeyToRSAPublicKey = function(key) { + // RSAPublicKey + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // modulus (n) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.n)), + // publicExponent (e) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + _bnToBytes(key.e)) + ]); +}; + +/** + * Encodes a message using PKCS#1 v1.5 padding. + * + * @param m the message to encode. + * @param key the RSA key to use. + * @param bt the block type to use, i.e. either 0x01 (for signing) or 0x02 + * (for encryption). + * + * @return the padded byte buffer. + */ +function _encodePkcs1_v1_5(m, key, bt) { + var eb = forge.util.createBuffer(); + + // get the length of the modulus in bytes + var k = Math.ceil(key.n.bitLength() / 8); + + /* use PKCS#1 v1.5 padding */ + if(m.length > (k - 11)) { + var error = new Error('Message is too long for PKCS#1 v1.5 padding.'); + error.length = m.length; + error.max = k - 11; + throw error; + } + + /* A block type BT, a padding string PS, and the data D shall be + formatted into an octet string EB, the encryption block: + + EB = 00 || BT || PS || 00 || D + + The block type BT shall be a single octet indicating the structure of + the encryption block. For this version of the document it shall have + value 00, 01, or 02. For a private-key operation, the block type + shall be 00 or 01. For a public-key operation, it shall be 02. + + The padding string PS shall consist of k-3-||D|| octets. For block + type 00, the octets shall have value 00; for block type 01, they + shall have value FF; and for block type 02, they shall be + pseudorandomly generated and nonzero. This makes the length of the + encryption block EB equal to k. */ + + // build the encryption block + eb.putByte(0x00); + eb.putByte(bt); + + // create the padding + var padNum = k - 3 - m.length; + var padByte; + // private key op + if(bt === 0x00 || bt === 0x01) { + padByte = (bt === 0x00) ? 0x00 : 0xFF; + for(var i = 0; i < padNum; ++i) { + eb.putByte(padByte); + } + } else { + // public key op + // pad with random non-zero values + while(padNum > 0) { + var numZeros = 0; + var padBytes = forge.random.getBytes(padNum); + for(var i = 0; i < padNum; ++i) { + padByte = padBytes.charCodeAt(i); + if(padByte === 0) { + ++numZeros; + } else { + eb.putByte(padByte); + } + } + padNum = numZeros; + } + } + + // zero followed by message + eb.putByte(0x00); + eb.putBytes(m); + + return eb; +} + +/** + * Decodes a message using PKCS#1 v1.5 padding. + * + * @param em the message to decode. + * @param key the RSA key to use. + * @param pub true if the key is a public key, false if it is private. + * @param ml the message length, if specified. + * + * @return the decoded bytes. + */ +function _decodePkcs1_v1_5(em, key, pub, ml) { + // get the length of the modulus in bytes + var k = Math.ceil(key.n.bitLength() / 8); + + /* It is an error if any of the following conditions occurs: + + 1. The encryption block EB cannot be parsed unambiguously. + 2. The padding string PS consists of fewer than eight octets + or is inconsisent with the block type BT. + 3. The decryption process is a public-key operation and the block + type BT is not 00 or 01, or the decryption process is a + private-key operation and the block type is not 02. + */ + + // parse the encryption block + var eb = forge.util.createBuffer(em); + var first = eb.getByte(); + var bt = eb.getByte(); + if(first !== 0x00 || + (pub && bt !== 0x00 && bt !== 0x01) || + (!pub && bt != 0x02) || + (pub && bt === 0x00 && typeof(ml) === 'undefined')) { + throw new Error('Encryption block is invalid.'); + } + + var padNum = 0; + if(bt === 0x00) { + // check all padding bytes for 0x00 + padNum = k - 3 - ml; + for(var i = 0; i < padNum; ++i) { + if(eb.getByte() !== 0x00) { + throw new Error('Encryption block is invalid.'); + } + } + } else if(bt === 0x01) { + // find the first byte that isn't 0xFF, should be after all padding + padNum = 0; + while(eb.length() > 1) { + if(eb.getByte() !== 0xFF) { + --eb.read; + break; + } + ++padNum; + } + } else if(bt === 0x02) { + // look for 0x00 byte + padNum = 0; + while(eb.length() > 1) { + if(eb.getByte() === 0x00) { + --eb.read; + break; + } + ++padNum; + } + } + + // zero must be 0x00 and padNum must be (k - 3 - message length) + var zero = eb.getByte(); + if(zero !== 0x00 || padNum !== (k - 3 - eb.length())) { + throw new Error('Encryption block is invalid.'); + } + + return eb.getBytes(); +} + +/** + * Runs the key-generation algorithm asynchronously, either in the background + * via Web Workers, or using the main thread and setImmediate. + * + * @param state the key-pair generation state. + * @param [options] options for key-pair generation: + * workerScript the worker script URL. + * workers the number of web workers (if supported) to use, + * (default: 2, -1 to use estimated cores minus one). + * workLoad the size of the work load, ie: number of possible prime + * numbers for each web worker to check per work assignment, + * (default: 100). + * @param callback(err, keypair) called once the operation completes. + */ +function _generateKeyPair(state, options, callback) { + if(typeof options === 'function') { + callback = options; + options = {}; + } + options = options || {}; + + var opts = { + algorithm: { + name: options.algorithm || 'PRIMEINC', + options: { + workers: options.workers || 2, + workLoad: options.workLoad || 100, + workerScript: options.workerScript + } + } + }; + if('prng' in options) { + opts.prng = options.prng; + } + + generate(); + + function generate() { + // find p and then q (done in series to simplify) + getPrime(state.pBits, function(err, num) { + if(err) { + return callback(err); + } + state.p = num; + if(state.q !== null) { + return finish(err, state.q); + } + getPrime(state.qBits, finish); + }); + } + + function getPrime(bits, callback) { + forge.prime.generateProbablePrime(bits, opts, callback); + } + + function finish(err, num) { + if(err) { + return callback(err); + } + + // set q + state.q = num; + + // ensure p is larger than q (swap them if not) + if(state.p.compareTo(state.q) < 0) { + var tmp = state.p; + state.p = state.q; + state.q = tmp; + } + + // ensure p is coprime with e + if(state.p.subtract(BigInteger.ONE).gcd(state.e) + .compareTo(BigInteger.ONE) !== 0) { + state.p = null; + generate(); + return; + } + + // ensure q is coprime with e + if(state.q.subtract(BigInteger.ONE).gcd(state.e) + .compareTo(BigInteger.ONE) !== 0) { + state.q = null; + getPrime(state.qBits, finish); + return; + } + + // compute phi: (p - 1)(q - 1) (Euler's totient function) + state.p1 = state.p.subtract(BigInteger.ONE); + state.q1 = state.q.subtract(BigInteger.ONE); + state.phi = state.p1.multiply(state.q1); + + // ensure e and phi are coprime + if(state.phi.gcd(state.e).compareTo(BigInteger.ONE) !== 0) { + // phi and e aren't coprime, so generate a new p and q + state.p = state.q = null; + generate(); + return; + } + + // create n, ensure n is has the right number of bits + state.n = state.p.multiply(state.q); + if(state.n.bitLength() !== state.bits) { + // failed, get new q + state.q = null; + getPrime(state.qBits, finish); + return; + } + + // set keys + var d = state.e.modInverse(state.phi); + state.keys = { + privateKey: pki.rsa.setPrivateKey( + state.n, state.e, d, state.p, state.q, + d.mod(state.p1), d.mod(state.q1), + state.q.modInverse(state.p)), + publicKey: pki.rsa.setPublicKey(state.n, state.e) + }; + + callback(null, state.keys); + } +} + +/** + * Converts a positive BigInteger into 2's-complement big-endian bytes. + * + * @param b the big integer to convert. + * + * @return the bytes. + */ +function _bnToBytes(b) { + // prepend 0x00 if first byte >= 0x80 + var hex = b.toString(16); + if(hex[0] >= '8') { + hex = '00' + hex; + } + var bytes = forge.util.hexToBytes(hex); + + // ensure integer is minimally-encoded + if(bytes.length > 1 && + // leading 0x00 for positive integer + ((bytes.charCodeAt(0) === 0 && + (bytes.charCodeAt(1) & 0x80) === 0) || + // leading 0xFF for negative integer + (bytes.charCodeAt(0) === 0xFF && + (bytes.charCodeAt(1) & 0x80) === 0x80))) { + return bytes.substr(1); + } + return bytes; +} + +/** + * Returns the required number of Miller-Rabin tests to generate a + * prime with an error probability of (1/2)^80. + * + * See Handbook of Applied Cryptography Chapter 4, Table 4.4. + * + * @param bits the bit size. + * + * @return the required number of iterations. + */ +function _getMillerRabinTests(bits) { + if(bits <= 100) return 27; + if(bits <= 150) return 18; + if(bits <= 200) return 15; + if(bits <= 250) return 12; + if(bits <= 300) return 9; + if(bits <= 350) return 8; + if(bits <= 400) return 7; + if(bits <= 500) return 6; + if(bits <= 600) return 5; + if(bits <= 800) return 4; + if(bits <= 1250) return 3; + return 2; +} + +/** + * Performs feature detection on the Node crypto interface. + * + * @param fn the feature (function) to detect. + * + * @return true if detected, false if not. + */ +function _detectNodeCrypto(fn) { + return forge.util.isNodejs && typeof _crypto[fn] === 'function'; +} + +/** + * Performs feature detection on the SubtleCrypto interface. + * + * @param fn the feature (function) to detect. + * + * @return true if detected, false if not. + */ +function _detectSubtleCrypto(fn) { + return (typeof util.globalScope !== 'undefined' && + typeof util.globalScope.crypto === 'object' && + typeof util.globalScope.crypto.subtle === 'object' && + typeof util.globalScope.crypto.subtle[fn] === 'function'); +} + +/** + * Performs feature detection on the deprecated Microsoft Internet Explorer + * outdated SubtleCrypto interface. This function should only be used after + * checking for the modern, standard SubtleCrypto interface. + * + * @param fn the feature (function) to detect. + * + * @return true if detected, false if not. + */ +function _detectSubtleMsCrypto(fn) { + return (typeof util.globalScope !== 'undefined' && + typeof util.globalScope.msCrypto === 'object' && + typeof util.globalScope.msCrypto.subtle === 'object' && + typeof util.globalScope.msCrypto.subtle[fn] === 'function'); +} + +function _intToUint8Array(x) { + var bytes = forge.util.hexToBytes(x.toString(16)); + var buffer = new Uint8Array(bytes.length); + for(var i = 0; i < bytes.length; ++i) { + buffer[i] = bytes.charCodeAt(i); + } + return buffer; +} + +function _privateKeyFromJwk(jwk) { + if(jwk.kty !== 'RSA') { + throw new Error( + 'Unsupported key algorithm "' + jwk.kty + '"; algorithm must be "RSA".'); + } + return pki.setRsaPrivateKey( + _base64ToBigInt(jwk.n), + _base64ToBigInt(jwk.e), + _base64ToBigInt(jwk.d), + _base64ToBigInt(jwk.p), + _base64ToBigInt(jwk.q), + _base64ToBigInt(jwk.dp), + _base64ToBigInt(jwk.dq), + _base64ToBigInt(jwk.qi)); +} + +function _publicKeyFromJwk(jwk) { + if(jwk.kty !== 'RSA') { + throw new Error('Key algorithm must be "RSA".'); + } + return pki.setRsaPublicKey( + _base64ToBigInt(jwk.n), + _base64ToBigInt(jwk.e)); +} + +function _base64ToBigInt(b64) { + return new BigInteger(forge.util.bytesToHex(forge.util.decode64(b64)), 16); +} diff --git a/node_modules/node-forge/lib/sha1.js b/node_modules/node-forge/lib/sha1.js new file mode 100644 index 0000000..5f84eb6 --- /dev/null +++ b/node_modules/node-forge/lib/sha1.js @@ -0,0 +1,319 @@ +/** + * Secure Hash Algorithm with 160-bit digest (SHA-1) implementation. + * + * @author Dave Longley + * + * Copyright (c) 2010-2015 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./md'); +require('./util'); + +var sha1 = module.exports = forge.sha1 = forge.sha1 || {}; +forge.md.sha1 = forge.md.algorithms.sha1 = sha1; + +/** + * Creates a SHA-1 message digest object. + * + * @return a message digest object. + */ +sha1.create = function() { + // do initialization as necessary + if(!_initialized) { + _init(); + } + + // SHA-1 state contains five 32-bit integers + var _state = null; + + // input buffer + var _input = forge.util.createBuffer(); + + // used for word storage + var _w = new Array(80); + + // message digest object + var md = { + algorithm: 'sha1', + blockLength: 64, + digestLength: 20, + // 56-bit length of message so far (does not including padding) + messageLength: 0, + // true message length + fullMessageLength: null, + // size of message length in bytes + messageLengthSize: 8 + }; + + /** + * Starts the digest. + * + * @return this digest object. + */ + md.start = function() { + // up to 56-bit message length for convenience + md.messageLength = 0; + + // full message length (set md.messageLength64 for backwards-compatibility) + md.fullMessageLength = md.messageLength64 = []; + var int32s = md.messageLengthSize / 4; + for(var i = 0; i < int32s; ++i) { + md.fullMessageLength.push(0); + } + _input = forge.util.createBuffer(); + _state = { + h0: 0x67452301, + h1: 0xEFCDAB89, + h2: 0x98BADCFE, + h3: 0x10325476, + h4: 0xC3D2E1F0 + }; + return md; + }; + // start digest automatically for first time + md.start(); + + /** + * Updates the digest with the given message input. The given input can + * treated as raw input (no encoding will be applied) or an encoding of + * 'utf8' maybe given to encode the input using UTF-8. + * + * @param msg the message input to update with. + * @param encoding the encoding to use (default: 'raw', other: 'utf8'). + * + * @return this digest object. + */ + md.update = function(msg, encoding) { + if(encoding === 'utf8') { + msg = forge.util.encodeUtf8(msg); + } + + // update message length + var len = msg.length; + md.messageLength += len; + len = [(len / 0x100000000) >>> 0, len >>> 0]; + for(var i = md.fullMessageLength.length - 1; i >= 0; --i) { + md.fullMessageLength[i] += len[1]; + len[1] = len[0] + ((md.fullMessageLength[i] / 0x100000000) >>> 0); + md.fullMessageLength[i] = md.fullMessageLength[i] >>> 0; + len[0] = ((len[1] / 0x100000000) >>> 0); + } + + // add bytes to input buffer + _input.putBytes(msg); + + // process bytes + _update(_state, _w, _input); + + // compact input buffer every 2K or if empty + if(_input.read > 2048 || _input.length() === 0) { + _input.compact(); + } + + return md; + }; + + /** + * Produces the digest. + * + * @return a byte buffer containing the digest value. + */ + md.digest = function() { + /* Note: Here we copy the remaining bytes in the input buffer and + add the appropriate SHA-1 padding. Then we do the final update + on a copy of the state so that if the user wants to get + intermediate digests they can do so. */ + + /* Determine the number of bytes that must be added to the message + to ensure its length is congruent to 448 mod 512. In other words, + the data to be digested must be a multiple of 512 bits (or 128 bytes). + This data includes the message, some padding, and the length of the + message. Since the length of the message will be encoded as 8 bytes (64 + bits), that means that the last segment of the data must have 56 bytes + (448 bits) of message and padding. Therefore, the length of the message + plus the padding must be congruent to 448 mod 512 because + 512 - 128 = 448. + + In order to fill up the message length it must be filled with + padding that begins with 1 bit followed by all 0 bits. Padding + must *always* be present, so if the message length is already + congruent to 448 mod 512, then 512 padding bits must be added. */ + + var finalBlock = forge.util.createBuffer(); + finalBlock.putBytes(_input.bytes()); + + // compute remaining size to be digested (include message length size) + var remaining = ( + md.fullMessageLength[md.fullMessageLength.length - 1] + + md.messageLengthSize); + + // add padding for overflow blockSize - overflow + // _padding starts with 1 byte with first bit is set (byte value 128), then + // there may be up to (blockSize - 1) other pad bytes + var overflow = remaining & (md.blockLength - 1); + finalBlock.putBytes(_padding.substr(0, md.blockLength - overflow)); + + // serialize message length in bits in big-endian order; since length + // is stored in bytes we multiply by 8 and add carry from next int + var next, carry; + var bits = md.fullMessageLength[0] * 8; + for(var i = 0; i < md.fullMessageLength.length - 1; ++i) { + next = md.fullMessageLength[i + 1] * 8; + carry = (next / 0x100000000) >>> 0; + bits += carry; + finalBlock.putInt32(bits >>> 0); + bits = next >>> 0; + } + finalBlock.putInt32(bits); + + var s2 = { + h0: _state.h0, + h1: _state.h1, + h2: _state.h2, + h3: _state.h3, + h4: _state.h4 + }; + _update(s2, _w, finalBlock); + var rval = forge.util.createBuffer(); + rval.putInt32(s2.h0); + rval.putInt32(s2.h1); + rval.putInt32(s2.h2); + rval.putInt32(s2.h3); + rval.putInt32(s2.h4); + return rval; + }; + + return md; +}; + +// sha-1 padding bytes not initialized yet +var _padding = null; +var _initialized = false; + +/** + * Initializes the constant tables. + */ +function _init() { + // create padding + _padding = String.fromCharCode(128); + _padding += forge.util.fillString(String.fromCharCode(0x00), 64); + + // now initialized + _initialized = true; +} + +/** + * Updates a SHA-1 state with the given byte buffer. + * + * @param s the SHA-1 state to update. + * @param w the array to use to store words. + * @param bytes the byte buffer to update with. + */ +function _update(s, w, bytes) { + // consume 512 bit (64 byte) chunks + var t, a, b, c, d, e, f, i; + var len = bytes.length(); + while(len >= 64) { + // the w array will be populated with sixteen 32-bit big-endian words + // and then extended into 80 32-bit words according to SHA-1 algorithm + // and for 32-79 using Max Locktyukhin's optimization + + // initialize hash value for this chunk + a = s.h0; + b = s.h1; + c = s.h2; + d = s.h3; + e = s.h4; + + // round 1 + for(i = 0; i < 16; ++i) { + t = bytes.getInt32(); + w[i] = t; + f = d ^ (b & (c ^ d)); + t = ((a << 5) | (a >>> 27)) + f + e + 0x5A827999 + t; + e = d; + d = c; + // `>>> 0` necessary to avoid iOS/Safari 10 optimization bug + c = ((b << 30) | (b >>> 2)) >>> 0; + b = a; + a = t; + } + for(; i < 20; ++i) { + t = (w[i - 3] ^ w[i - 8] ^ w[i - 14] ^ w[i - 16]); + t = (t << 1) | (t >>> 31); + w[i] = t; + f = d ^ (b & (c ^ d)); + t = ((a << 5) | (a >>> 27)) + f + e + 0x5A827999 + t; + e = d; + d = c; + // `>>> 0` necessary to avoid iOS/Safari 10 optimization bug + c = ((b << 30) | (b >>> 2)) >>> 0; + b = a; + a = t; + } + // round 2 + for(; i < 32; ++i) { + t = (w[i - 3] ^ w[i - 8] ^ w[i - 14] ^ w[i - 16]); + t = (t << 1) | (t >>> 31); + w[i] = t; + f = b ^ c ^ d; + t = ((a << 5) | (a >>> 27)) + f + e + 0x6ED9EBA1 + t; + e = d; + d = c; + // `>>> 0` necessary to avoid iOS/Safari 10 optimization bug + c = ((b << 30) | (b >>> 2)) >>> 0; + b = a; + a = t; + } + for(; i < 40; ++i) { + t = (w[i - 6] ^ w[i - 16] ^ w[i - 28] ^ w[i - 32]); + t = (t << 2) | (t >>> 30); + w[i] = t; + f = b ^ c ^ d; + t = ((a << 5) | (a >>> 27)) + f + e + 0x6ED9EBA1 + t; + e = d; + d = c; + // `>>> 0` necessary to avoid iOS/Safari 10 optimization bug + c = ((b << 30) | (b >>> 2)) >>> 0; + b = a; + a = t; + } + // round 3 + for(; i < 60; ++i) { + t = (w[i - 6] ^ w[i - 16] ^ w[i - 28] ^ w[i - 32]); + t = (t << 2) | (t >>> 30); + w[i] = t; + f = (b & c) | (d & (b ^ c)); + t = ((a << 5) | (a >>> 27)) + f + e + 0x8F1BBCDC + t; + e = d; + d = c; + // `>>> 0` necessary to avoid iOS/Safari 10 optimization bug + c = ((b << 30) | (b >>> 2)) >>> 0; + b = a; + a = t; + } + // round 4 + for(; i < 80; ++i) { + t = (w[i - 6] ^ w[i - 16] ^ w[i - 28] ^ w[i - 32]); + t = (t << 2) | (t >>> 30); + w[i] = t; + f = b ^ c ^ d; + t = ((a << 5) | (a >>> 27)) + f + e + 0xCA62C1D6 + t; + e = d; + d = c; + // `>>> 0` necessary to avoid iOS/Safari 10 optimization bug + c = ((b << 30) | (b >>> 2)) >>> 0; + b = a; + a = t; + } + + // update hash state + s.h0 = (s.h0 + a) | 0; + s.h1 = (s.h1 + b) | 0; + s.h2 = (s.h2 + c) | 0; + s.h3 = (s.h3 + d) | 0; + s.h4 = (s.h4 + e) | 0; + + len -= 64; + } +} diff --git a/node_modules/node-forge/lib/sha256.js b/node_modules/node-forge/lib/sha256.js new file mode 100644 index 0000000..0659ad7 --- /dev/null +++ b/node_modules/node-forge/lib/sha256.js @@ -0,0 +1,327 @@ +/** + * Secure Hash Algorithm with 256-bit digest (SHA-256) implementation. + * + * See FIPS 180-2 for details. + * + * @author Dave Longley + * + * Copyright (c) 2010-2015 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./md'); +require('./util'); + +var sha256 = module.exports = forge.sha256 = forge.sha256 || {}; +forge.md.sha256 = forge.md.algorithms.sha256 = sha256; + +/** + * Creates a SHA-256 message digest object. + * + * @return a message digest object. + */ +sha256.create = function() { + // do initialization as necessary + if(!_initialized) { + _init(); + } + + // SHA-256 state contains eight 32-bit integers + var _state = null; + + // input buffer + var _input = forge.util.createBuffer(); + + // used for word storage + var _w = new Array(64); + + // message digest object + var md = { + algorithm: 'sha256', + blockLength: 64, + digestLength: 32, + // 56-bit length of message so far (does not including padding) + messageLength: 0, + // true message length + fullMessageLength: null, + // size of message length in bytes + messageLengthSize: 8 + }; + + /** + * Starts the digest. + * + * @return this digest object. + */ + md.start = function() { + // up to 56-bit message length for convenience + md.messageLength = 0; + + // full message length (set md.messageLength64 for backwards-compatibility) + md.fullMessageLength = md.messageLength64 = []; + var int32s = md.messageLengthSize / 4; + for(var i = 0; i < int32s; ++i) { + md.fullMessageLength.push(0); + } + _input = forge.util.createBuffer(); + _state = { + h0: 0x6A09E667, + h1: 0xBB67AE85, + h2: 0x3C6EF372, + h3: 0xA54FF53A, + h4: 0x510E527F, + h5: 0x9B05688C, + h6: 0x1F83D9AB, + h7: 0x5BE0CD19 + }; + return md; + }; + // start digest automatically for first time + md.start(); + + /** + * Updates the digest with the given message input. The given input can + * treated as raw input (no encoding will be applied) or an encoding of + * 'utf8' maybe given to encode the input using UTF-8. + * + * @param msg the message input to update with. + * @param encoding the encoding to use (default: 'raw', other: 'utf8'). + * + * @return this digest object. + */ + md.update = function(msg, encoding) { + if(encoding === 'utf8') { + msg = forge.util.encodeUtf8(msg); + } + + // update message length + var len = msg.length; + md.messageLength += len; + len = [(len / 0x100000000) >>> 0, len >>> 0]; + for(var i = md.fullMessageLength.length - 1; i >= 0; --i) { + md.fullMessageLength[i] += len[1]; + len[1] = len[0] + ((md.fullMessageLength[i] / 0x100000000) >>> 0); + md.fullMessageLength[i] = md.fullMessageLength[i] >>> 0; + len[0] = ((len[1] / 0x100000000) >>> 0); + } + + // add bytes to input buffer + _input.putBytes(msg); + + // process bytes + _update(_state, _w, _input); + + // compact input buffer every 2K or if empty + if(_input.read > 2048 || _input.length() === 0) { + _input.compact(); + } + + return md; + }; + + /** + * Produces the digest. + * + * @return a byte buffer containing the digest value. + */ + md.digest = function() { + /* Note: Here we copy the remaining bytes in the input buffer and + add the appropriate SHA-256 padding. Then we do the final update + on a copy of the state so that if the user wants to get + intermediate digests they can do so. */ + + /* Determine the number of bytes that must be added to the message + to ensure its length is congruent to 448 mod 512. In other words, + the data to be digested must be a multiple of 512 bits (or 128 bytes). + This data includes the message, some padding, and the length of the + message. Since the length of the message will be encoded as 8 bytes (64 + bits), that means that the last segment of the data must have 56 bytes + (448 bits) of message and padding. Therefore, the length of the message + plus the padding must be congruent to 448 mod 512 because + 512 - 128 = 448. + + In order to fill up the message length it must be filled with + padding that begins with 1 bit followed by all 0 bits. Padding + must *always* be present, so if the message length is already + congruent to 448 mod 512, then 512 padding bits must be added. */ + + var finalBlock = forge.util.createBuffer(); + finalBlock.putBytes(_input.bytes()); + + // compute remaining size to be digested (include message length size) + var remaining = ( + md.fullMessageLength[md.fullMessageLength.length - 1] + + md.messageLengthSize); + + // add padding for overflow blockSize - overflow + // _padding starts with 1 byte with first bit is set (byte value 128), then + // there may be up to (blockSize - 1) other pad bytes + var overflow = remaining & (md.blockLength - 1); + finalBlock.putBytes(_padding.substr(0, md.blockLength - overflow)); + + // serialize message length in bits in big-endian order; since length + // is stored in bytes we multiply by 8 and add carry from next int + var next, carry; + var bits = md.fullMessageLength[0] * 8; + for(var i = 0; i < md.fullMessageLength.length - 1; ++i) { + next = md.fullMessageLength[i + 1] * 8; + carry = (next / 0x100000000) >>> 0; + bits += carry; + finalBlock.putInt32(bits >>> 0); + bits = next >>> 0; + } + finalBlock.putInt32(bits); + + var s2 = { + h0: _state.h0, + h1: _state.h1, + h2: _state.h2, + h3: _state.h3, + h4: _state.h4, + h5: _state.h5, + h6: _state.h6, + h7: _state.h7 + }; + _update(s2, _w, finalBlock); + var rval = forge.util.createBuffer(); + rval.putInt32(s2.h0); + rval.putInt32(s2.h1); + rval.putInt32(s2.h2); + rval.putInt32(s2.h3); + rval.putInt32(s2.h4); + rval.putInt32(s2.h5); + rval.putInt32(s2.h6); + rval.putInt32(s2.h7); + return rval; + }; + + return md; +}; + +// sha-256 padding bytes not initialized yet +var _padding = null; +var _initialized = false; + +// table of constants +var _k = null; + +/** + * Initializes the constant tables. + */ +function _init() { + // create padding + _padding = String.fromCharCode(128); + _padding += forge.util.fillString(String.fromCharCode(0x00), 64); + + // create K table for SHA-256 + _k = [ + 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, + 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, + 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, + 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, + 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, + 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, + 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, + 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, + 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, + 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, + 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, + 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, + 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, + 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, + 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, + 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2]; + + // now initialized + _initialized = true; +} + +/** + * Updates a SHA-256 state with the given byte buffer. + * + * @param s the SHA-256 state to update. + * @param w the array to use to store words. + * @param bytes the byte buffer to update with. + */ +function _update(s, w, bytes) { + // consume 512 bit (64 byte) chunks + var t1, t2, s0, s1, ch, maj, i, a, b, c, d, e, f, g, h; + var len = bytes.length(); + while(len >= 64) { + // the w array will be populated with sixteen 32-bit big-endian words + // and then extended into 64 32-bit words according to SHA-256 + for(i = 0; i < 16; ++i) { + w[i] = bytes.getInt32(); + } + for(; i < 64; ++i) { + // XOR word 2 words ago rot right 17, rot right 19, shft right 10 + t1 = w[i - 2]; + t1 = + ((t1 >>> 17) | (t1 << 15)) ^ + ((t1 >>> 19) | (t1 << 13)) ^ + (t1 >>> 10); + // XOR word 15 words ago rot right 7, rot right 18, shft right 3 + t2 = w[i - 15]; + t2 = + ((t2 >>> 7) | (t2 << 25)) ^ + ((t2 >>> 18) | (t2 << 14)) ^ + (t2 >>> 3); + // sum(t1, word 7 ago, t2, word 16 ago) modulo 2^32 + w[i] = (t1 + w[i - 7] + t2 + w[i - 16]) | 0; + } + + // initialize hash value for this chunk + a = s.h0; + b = s.h1; + c = s.h2; + d = s.h3; + e = s.h4; + f = s.h5; + g = s.h6; + h = s.h7; + + // round function + for(i = 0; i < 64; ++i) { + // Sum1(e) + s1 = + ((e >>> 6) | (e << 26)) ^ + ((e >>> 11) | (e << 21)) ^ + ((e >>> 25) | (e << 7)); + // Ch(e, f, g) (optimized the same way as SHA-1) + ch = g ^ (e & (f ^ g)); + // Sum0(a) + s0 = + ((a >>> 2) | (a << 30)) ^ + ((a >>> 13) | (a << 19)) ^ + ((a >>> 22) | (a << 10)); + // Maj(a, b, c) (optimized the same way as SHA-1) + maj = (a & b) | (c & (a ^ b)); + + // main algorithm + t1 = h + s1 + ch + _k[i] + w[i]; + t2 = s0 + maj; + h = g; + g = f; + f = e; + // `>>> 0` necessary to avoid iOS/Safari 10 optimization bug + // can't truncate with `| 0` + e = (d + t1) >>> 0; + d = c; + c = b; + b = a; + // `>>> 0` necessary to avoid iOS/Safari 10 optimization bug + // can't truncate with `| 0` + a = (t1 + t2) >>> 0; + } + + // update hash state + s.h0 = (s.h0 + a) | 0; + s.h1 = (s.h1 + b) | 0; + s.h2 = (s.h2 + c) | 0; + s.h3 = (s.h3 + d) | 0; + s.h4 = (s.h4 + e) | 0; + s.h5 = (s.h5 + f) | 0; + s.h6 = (s.h6 + g) | 0; + s.h7 = (s.h7 + h) | 0; + len -= 64; + } +} diff --git a/node_modules/node-forge/lib/sha512.js b/node_modules/node-forge/lib/sha512.js new file mode 100644 index 0000000..e09b442 --- /dev/null +++ b/node_modules/node-forge/lib/sha512.js @@ -0,0 +1,561 @@ +/** + * Secure Hash Algorithm with a 1024-bit block size implementation. + * + * This includes: SHA-512, SHA-384, SHA-512/224, and SHA-512/256. For + * SHA-256 (block size 512 bits), see sha256.js. + * + * See FIPS 180-4 for details. + * + * @author Dave Longley + * + * Copyright (c) 2014-2015 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./md'); +require('./util'); + +var sha512 = module.exports = forge.sha512 = forge.sha512 || {}; + +// SHA-512 +forge.md.sha512 = forge.md.algorithms.sha512 = sha512; + +// SHA-384 +var sha384 = forge.sha384 = forge.sha512.sha384 = forge.sha512.sha384 || {}; +sha384.create = function() { + return sha512.create('SHA-384'); +}; +forge.md.sha384 = forge.md.algorithms.sha384 = sha384; + +// SHA-512/256 +forge.sha512.sha256 = forge.sha512.sha256 || { + create: function() { + return sha512.create('SHA-512/256'); + } +}; +forge.md['sha512/256'] = forge.md.algorithms['sha512/256'] = + forge.sha512.sha256; + +// SHA-512/224 +forge.sha512.sha224 = forge.sha512.sha224 || { + create: function() { + return sha512.create('SHA-512/224'); + } +}; +forge.md['sha512/224'] = forge.md.algorithms['sha512/224'] = + forge.sha512.sha224; + +/** + * Creates a SHA-2 message digest object. + * + * @param algorithm the algorithm to use (SHA-512, SHA-384, SHA-512/224, + * SHA-512/256). + * + * @return a message digest object. + */ +sha512.create = function(algorithm) { + // do initialization as necessary + if(!_initialized) { + _init(); + } + + if(typeof algorithm === 'undefined') { + algorithm = 'SHA-512'; + } + + if(!(algorithm in _states)) { + throw new Error('Invalid SHA-512 algorithm: ' + algorithm); + } + + // SHA-512 state contains eight 64-bit integers (each as two 32-bit ints) + var _state = _states[algorithm]; + var _h = null; + + // input buffer + var _input = forge.util.createBuffer(); + + // used for 64-bit word storage + var _w = new Array(80); + for(var wi = 0; wi < 80; ++wi) { + _w[wi] = new Array(2); + } + + // determine digest length by algorithm name (default) + var digestLength = 64; + switch(algorithm) { + case 'SHA-384': + digestLength = 48; + break; + case 'SHA-512/256': + digestLength = 32; + break; + case 'SHA-512/224': + digestLength = 28; + break; + } + + // message digest object + var md = { + // SHA-512 => sha512 + algorithm: algorithm.replace('-', '').toLowerCase(), + blockLength: 128, + digestLength: digestLength, + // 56-bit length of message so far (does not including padding) + messageLength: 0, + // true message length + fullMessageLength: null, + // size of message length in bytes + messageLengthSize: 16 + }; + + /** + * Starts the digest. + * + * @return this digest object. + */ + md.start = function() { + // up to 56-bit message length for convenience + md.messageLength = 0; + + // full message length (set md.messageLength128 for backwards-compatibility) + md.fullMessageLength = md.messageLength128 = []; + var int32s = md.messageLengthSize / 4; + for(var i = 0; i < int32s; ++i) { + md.fullMessageLength.push(0); + } + _input = forge.util.createBuffer(); + _h = new Array(_state.length); + for(var i = 0; i < _state.length; ++i) { + _h[i] = _state[i].slice(0); + } + return md; + }; + // start digest automatically for first time + md.start(); + + /** + * Updates the digest with the given message input. The given input can + * treated as raw input (no encoding will be applied) or an encoding of + * 'utf8' maybe given to encode the input using UTF-8. + * + * @param msg the message input to update with. + * @param encoding the encoding to use (default: 'raw', other: 'utf8'). + * + * @return this digest object. + */ + md.update = function(msg, encoding) { + if(encoding === 'utf8') { + msg = forge.util.encodeUtf8(msg); + } + + // update message length + var len = msg.length; + md.messageLength += len; + len = [(len / 0x100000000) >>> 0, len >>> 0]; + for(var i = md.fullMessageLength.length - 1; i >= 0; --i) { + md.fullMessageLength[i] += len[1]; + len[1] = len[0] + ((md.fullMessageLength[i] / 0x100000000) >>> 0); + md.fullMessageLength[i] = md.fullMessageLength[i] >>> 0; + len[0] = ((len[1] / 0x100000000) >>> 0); + } + + // add bytes to input buffer + _input.putBytes(msg); + + // process bytes + _update(_h, _w, _input); + + // compact input buffer every 2K or if empty + if(_input.read > 2048 || _input.length() === 0) { + _input.compact(); + } + + return md; + }; + + /** + * Produces the digest. + * + * @return a byte buffer containing the digest value. + */ + md.digest = function() { + /* Note: Here we copy the remaining bytes in the input buffer and + add the appropriate SHA-512 padding. Then we do the final update + on a copy of the state so that if the user wants to get + intermediate digests they can do so. */ + + /* Determine the number of bytes that must be added to the message + to ensure its length is congruent to 896 mod 1024. In other words, + the data to be digested must be a multiple of 1024 bits (or 128 bytes). + This data includes the message, some padding, and the length of the + message. Since the length of the message will be encoded as 16 bytes (128 + bits), that means that the last segment of the data must have 112 bytes + (896 bits) of message and padding. Therefore, the length of the message + plus the padding must be congruent to 896 mod 1024 because + 1024 - 128 = 896. + + In order to fill up the message length it must be filled with + padding that begins with 1 bit followed by all 0 bits. Padding + must *always* be present, so if the message length is already + congruent to 896 mod 1024, then 1024 padding bits must be added. */ + + var finalBlock = forge.util.createBuffer(); + finalBlock.putBytes(_input.bytes()); + + // compute remaining size to be digested (include message length size) + var remaining = ( + md.fullMessageLength[md.fullMessageLength.length - 1] + + md.messageLengthSize); + + // add padding for overflow blockSize - overflow + // _padding starts with 1 byte with first bit is set (byte value 128), then + // there may be up to (blockSize - 1) other pad bytes + var overflow = remaining & (md.blockLength - 1); + finalBlock.putBytes(_padding.substr(0, md.blockLength - overflow)); + + // serialize message length in bits in big-endian order; since length + // is stored in bytes we multiply by 8 and add carry from next int + var next, carry; + var bits = md.fullMessageLength[0] * 8; + for(var i = 0; i < md.fullMessageLength.length - 1; ++i) { + next = md.fullMessageLength[i + 1] * 8; + carry = (next / 0x100000000) >>> 0; + bits += carry; + finalBlock.putInt32(bits >>> 0); + bits = next >>> 0; + } + finalBlock.putInt32(bits); + + var h = new Array(_h.length); + for(var i = 0; i < _h.length; ++i) { + h[i] = _h[i].slice(0); + } + _update(h, _w, finalBlock); + var rval = forge.util.createBuffer(); + var hlen; + if(algorithm === 'SHA-512') { + hlen = h.length; + } else if(algorithm === 'SHA-384') { + hlen = h.length - 2; + } else { + hlen = h.length - 4; + } + for(var i = 0; i < hlen; ++i) { + rval.putInt32(h[i][0]); + if(i !== hlen - 1 || algorithm !== 'SHA-512/224') { + rval.putInt32(h[i][1]); + } + } + return rval; + }; + + return md; +}; + +// sha-512 padding bytes not initialized yet +var _padding = null; +var _initialized = false; + +// table of constants +var _k = null; + +// initial hash states +var _states = null; + +/** + * Initializes the constant tables. + */ +function _init() { + // create padding + _padding = String.fromCharCode(128); + _padding += forge.util.fillString(String.fromCharCode(0x00), 128); + + // create K table for SHA-512 + _k = [ + [0x428a2f98, 0xd728ae22], [0x71374491, 0x23ef65cd], + [0xb5c0fbcf, 0xec4d3b2f], [0xe9b5dba5, 0x8189dbbc], + [0x3956c25b, 0xf348b538], [0x59f111f1, 0xb605d019], + [0x923f82a4, 0xaf194f9b], [0xab1c5ed5, 0xda6d8118], + [0xd807aa98, 0xa3030242], [0x12835b01, 0x45706fbe], + [0x243185be, 0x4ee4b28c], [0x550c7dc3, 0xd5ffb4e2], + [0x72be5d74, 0xf27b896f], [0x80deb1fe, 0x3b1696b1], + [0x9bdc06a7, 0x25c71235], [0xc19bf174, 0xcf692694], + [0xe49b69c1, 0x9ef14ad2], [0xefbe4786, 0x384f25e3], + [0x0fc19dc6, 0x8b8cd5b5], [0x240ca1cc, 0x77ac9c65], + [0x2de92c6f, 0x592b0275], [0x4a7484aa, 0x6ea6e483], + [0x5cb0a9dc, 0xbd41fbd4], [0x76f988da, 0x831153b5], + [0x983e5152, 0xee66dfab], [0xa831c66d, 0x2db43210], + [0xb00327c8, 0x98fb213f], [0xbf597fc7, 0xbeef0ee4], + [0xc6e00bf3, 0x3da88fc2], [0xd5a79147, 0x930aa725], + [0x06ca6351, 0xe003826f], [0x14292967, 0x0a0e6e70], + [0x27b70a85, 0x46d22ffc], [0x2e1b2138, 0x5c26c926], + [0x4d2c6dfc, 0x5ac42aed], [0x53380d13, 0x9d95b3df], + [0x650a7354, 0x8baf63de], [0x766a0abb, 0x3c77b2a8], + [0x81c2c92e, 0x47edaee6], [0x92722c85, 0x1482353b], + [0xa2bfe8a1, 0x4cf10364], [0xa81a664b, 0xbc423001], + [0xc24b8b70, 0xd0f89791], [0xc76c51a3, 0x0654be30], + [0xd192e819, 0xd6ef5218], [0xd6990624, 0x5565a910], + [0xf40e3585, 0x5771202a], [0x106aa070, 0x32bbd1b8], + [0x19a4c116, 0xb8d2d0c8], [0x1e376c08, 0x5141ab53], + [0x2748774c, 0xdf8eeb99], [0x34b0bcb5, 0xe19b48a8], + [0x391c0cb3, 0xc5c95a63], [0x4ed8aa4a, 0xe3418acb], + [0x5b9cca4f, 0x7763e373], [0x682e6ff3, 0xd6b2b8a3], + [0x748f82ee, 0x5defb2fc], [0x78a5636f, 0x43172f60], + [0x84c87814, 0xa1f0ab72], [0x8cc70208, 0x1a6439ec], + [0x90befffa, 0x23631e28], [0xa4506ceb, 0xde82bde9], + [0xbef9a3f7, 0xb2c67915], [0xc67178f2, 0xe372532b], + [0xca273ece, 0xea26619c], [0xd186b8c7, 0x21c0c207], + [0xeada7dd6, 0xcde0eb1e], [0xf57d4f7f, 0xee6ed178], + [0x06f067aa, 0x72176fba], [0x0a637dc5, 0xa2c898a6], + [0x113f9804, 0xbef90dae], [0x1b710b35, 0x131c471b], + [0x28db77f5, 0x23047d84], [0x32caab7b, 0x40c72493], + [0x3c9ebe0a, 0x15c9bebc], [0x431d67c4, 0x9c100d4c], + [0x4cc5d4be, 0xcb3e42b6], [0x597f299c, 0xfc657e2a], + [0x5fcb6fab, 0x3ad6faec], [0x6c44198c, 0x4a475817] + ]; + + // initial hash states + _states = {}; + _states['SHA-512'] = [ + [0x6a09e667, 0xf3bcc908], + [0xbb67ae85, 0x84caa73b], + [0x3c6ef372, 0xfe94f82b], + [0xa54ff53a, 0x5f1d36f1], + [0x510e527f, 0xade682d1], + [0x9b05688c, 0x2b3e6c1f], + [0x1f83d9ab, 0xfb41bd6b], + [0x5be0cd19, 0x137e2179] + ]; + _states['SHA-384'] = [ + [0xcbbb9d5d, 0xc1059ed8], + [0x629a292a, 0x367cd507], + [0x9159015a, 0x3070dd17], + [0x152fecd8, 0xf70e5939], + [0x67332667, 0xffc00b31], + [0x8eb44a87, 0x68581511], + [0xdb0c2e0d, 0x64f98fa7], + [0x47b5481d, 0xbefa4fa4] + ]; + _states['SHA-512/256'] = [ + [0x22312194, 0xFC2BF72C], + [0x9F555FA3, 0xC84C64C2], + [0x2393B86B, 0x6F53B151], + [0x96387719, 0x5940EABD], + [0x96283EE2, 0xA88EFFE3], + [0xBE5E1E25, 0x53863992], + [0x2B0199FC, 0x2C85B8AA], + [0x0EB72DDC, 0x81C52CA2] + ]; + _states['SHA-512/224'] = [ + [0x8C3D37C8, 0x19544DA2], + [0x73E19966, 0x89DCD4D6], + [0x1DFAB7AE, 0x32FF9C82], + [0x679DD514, 0x582F9FCF], + [0x0F6D2B69, 0x7BD44DA8], + [0x77E36F73, 0x04C48942], + [0x3F9D85A8, 0x6A1D36C8], + [0x1112E6AD, 0x91D692A1] + ]; + + // now initialized + _initialized = true; +} + +/** + * Updates a SHA-512 state with the given byte buffer. + * + * @param s the SHA-512 state to update. + * @param w the array to use to store words. + * @param bytes the byte buffer to update with. + */ +function _update(s, w, bytes) { + // consume 512 bit (128 byte) chunks + var t1_hi, t1_lo; + var t2_hi, t2_lo; + var s0_hi, s0_lo; + var s1_hi, s1_lo; + var ch_hi, ch_lo; + var maj_hi, maj_lo; + var a_hi, a_lo; + var b_hi, b_lo; + var c_hi, c_lo; + var d_hi, d_lo; + var e_hi, e_lo; + var f_hi, f_lo; + var g_hi, g_lo; + var h_hi, h_lo; + var i, hi, lo, w2, w7, w15, w16; + var len = bytes.length(); + while(len >= 128) { + // the w array will be populated with sixteen 64-bit big-endian words + // and then extended into 64 64-bit words according to SHA-512 + for(i = 0; i < 16; ++i) { + w[i][0] = bytes.getInt32() >>> 0; + w[i][1] = bytes.getInt32() >>> 0; + } + for(; i < 80; ++i) { + // for word 2 words ago: ROTR 19(x) ^ ROTR 61(x) ^ SHR 6(x) + w2 = w[i - 2]; + hi = w2[0]; + lo = w2[1]; + + // high bits + t1_hi = ( + ((hi >>> 19) | (lo << 13)) ^ // ROTR 19 + ((lo >>> 29) | (hi << 3)) ^ // ROTR 61/(swap + ROTR 29) + (hi >>> 6)) >>> 0; // SHR 6 + // low bits + t1_lo = ( + ((hi << 13) | (lo >>> 19)) ^ // ROTR 19 + ((lo << 3) | (hi >>> 29)) ^ // ROTR 61/(swap + ROTR 29) + ((hi << 26) | (lo >>> 6))) >>> 0; // SHR 6 + + // for word 15 words ago: ROTR 1(x) ^ ROTR 8(x) ^ SHR 7(x) + w15 = w[i - 15]; + hi = w15[0]; + lo = w15[1]; + + // high bits + t2_hi = ( + ((hi >>> 1) | (lo << 31)) ^ // ROTR 1 + ((hi >>> 8) | (lo << 24)) ^ // ROTR 8 + (hi >>> 7)) >>> 0; // SHR 7 + // low bits + t2_lo = ( + ((hi << 31) | (lo >>> 1)) ^ // ROTR 1 + ((hi << 24) | (lo >>> 8)) ^ // ROTR 8 + ((hi << 25) | (lo >>> 7))) >>> 0; // SHR 7 + + // sum(t1, word 7 ago, t2, word 16 ago) modulo 2^64 (carry lo overflow) + w7 = w[i - 7]; + w16 = w[i - 16]; + lo = (t1_lo + w7[1] + t2_lo + w16[1]); + w[i][0] = (t1_hi + w7[0] + t2_hi + w16[0] + + ((lo / 0x100000000) >>> 0)) >>> 0; + w[i][1] = lo >>> 0; + } + + // initialize hash value for this chunk + a_hi = s[0][0]; + a_lo = s[0][1]; + b_hi = s[1][0]; + b_lo = s[1][1]; + c_hi = s[2][0]; + c_lo = s[2][1]; + d_hi = s[3][0]; + d_lo = s[3][1]; + e_hi = s[4][0]; + e_lo = s[4][1]; + f_hi = s[5][0]; + f_lo = s[5][1]; + g_hi = s[6][0]; + g_lo = s[6][1]; + h_hi = s[7][0]; + h_lo = s[7][1]; + + // round function + for(i = 0; i < 80; ++i) { + // Sum1(e) = ROTR 14(e) ^ ROTR 18(e) ^ ROTR 41(e) + s1_hi = ( + ((e_hi >>> 14) | (e_lo << 18)) ^ // ROTR 14 + ((e_hi >>> 18) | (e_lo << 14)) ^ // ROTR 18 + ((e_lo >>> 9) | (e_hi << 23))) >>> 0; // ROTR 41/(swap + ROTR 9) + s1_lo = ( + ((e_hi << 18) | (e_lo >>> 14)) ^ // ROTR 14 + ((e_hi << 14) | (e_lo >>> 18)) ^ // ROTR 18 + ((e_lo << 23) | (e_hi >>> 9))) >>> 0; // ROTR 41/(swap + ROTR 9) + + // Ch(e, f, g) (optimized the same way as SHA-1) + ch_hi = (g_hi ^ (e_hi & (f_hi ^ g_hi))) >>> 0; + ch_lo = (g_lo ^ (e_lo & (f_lo ^ g_lo))) >>> 0; + + // Sum0(a) = ROTR 28(a) ^ ROTR 34(a) ^ ROTR 39(a) + s0_hi = ( + ((a_hi >>> 28) | (a_lo << 4)) ^ // ROTR 28 + ((a_lo >>> 2) | (a_hi << 30)) ^ // ROTR 34/(swap + ROTR 2) + ((a_lo >>> 7) | (a_hi << 25))) >>> 0; // ROTR 39/(swap + ROTR 7) + s0_lo = ( + ((a_hi << 4) | (a_lo >>> 28)) ^ // ROTR 28 + ((a_lo << 30) | (a_hi >>> 2)) ^ // ROTR 34/(swap + ROTR 2) + ((a_lo << 25) | (a_hi >>> 7))) >>> 0; // ROTR 39/(swap + ROTR 7) + + // Maj(a, b, c) (optimized the same way as SHA-1) + maj_hi = ((a_hi & b_hi) | (c_hi & (a_hi ^ b_hi))) >>> 0; + maj_lo = ((a_lo & b_lo) | (c_lo & (a_lo ^ b_lo))) >>> 0; + + // main algorithm + // t1 = (h + s1 + ch + _k[i] + _w[i]) modulo 2^64 (carry lo overflow) + lo = (h_lo + s1_lo + ch_lo + _k[i][1] + w[i][1]); + t1_hi = (h_hi + s1_hi + ch_hi + _k[i][0] + w[i][0] + + ((lo / 0x100000000) >>> 0)) >>> 0; + t1_lo = lo >>> 0; + + // t2 = s0 + maj modulo 2^64 (carry lo overflow) + lo = s0_lo + maj_lo; + t2_hi = (s0_hi + maj_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + t2_lo = lo >>> 0; + + h_hi = g_hi; + h_lo = g_lo; + + g_hi = f_hi; + g_lo = f_lo; + + f_hi = e_hi; + f_lo = e_lo; + + // e = (d + t1) modulo 2^64 (carry lo overflow) + lo = d_lo + t1_lo; + e_hi = (d_hi + t1_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + e_lo = lo >>> 0; + + d_hi = c_hi; + d_lo = c_lo; + + c_hi = b_hi; + c_lo = b_lo; + + b_hi = a_hi; + b_lo = a_lo; + + // a = (t1 + t2) modulo 2^64 (carry lo overflow) + lo = t1_lo + t2_lo; + a_hi = (t1_hi + t2_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + a_lo = lo >>> 0; + } + + // update hash state (additional modulo 2^64) + lo = s[0][1] + a_lo; + s[0][0] = (s[0][0] + a_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + s[0][1] = lo >>> 0; + + lo = s[1][1] + b_lo; + s[1][0] = (s[1][0] + b_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + s[1][1] = lo >>> 0; + + lo = s[2][1] + c_lo; + s[2][0] = (s[2][0] + c_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + s[2][1] = lo >>> 0; + + lo = s[3][1] + d_lo; + s[3][0] = (s[3][0] + d_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + s[3][1] = lo >>> 0; + + lo = s[4][1] + e_lo; + s[4][0] = (s[4][0] + e_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + s[4][1] = lo >>> 0; + + lo = s[5][1] + f_lo; + s[5][0] = (s[5][0] + f_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + s[5][1] = lo >>> 0; + + lo = s[6][1] + g_lo; + s[6][0] = (s[6][0] + g_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + s[6][1] = lo >>> 0; + + lo = s[7][1] + h_lo; + s[7][0] = (s[7][0] + h_hi + ((lo / 0x100000000) >>> 0)) >>> 0; + s[7][1] = lo >>> 0; + + len -= 128; + } +} diff --git a/node_modules/node-forge/lib/socket.js b/node_modules/node-forge/lib/socket.js new file mode 100644 index 0000000..3a1d7ff --- /dev/null +++ b/node_modules/node-forge/lib/socket.js @@ -0,0 +1,287 @@ +/** + * Socket implementation that uses flash SocketPool class as a backend. + * + * @author Dave Longley + * + * Copyright (c) 2010-2013 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./util'); + +// define net namespace +var net = module.exports = forge.net = forge.net || {}; + +// map of flash ID to socket pool +net.socketPools = {}; + +/** + * Creates a flash socket pool. + * + * @param options: + * flashId: the dom ID for the flash object element. + * policyPort: the default policy port for sockets, 0 to use the + * flash default. + * policyUrl: the default policy file URL for sockets (if provided + * used instead of a policy port). + * msie: true if the browser is msie, false if not. + * + * @return the created socket pool. + */ +net.createSocketPool = function(options) { + // set default + options.msie = options.msie || false; + + // initialize the flash interface + var spId = options.flashId; + var api = document.getElementById(spId); + api.init({marshallExceptions: !options.msie}); + + // create socket pool entry + var sp = { + // ID of the socket pool + id: spId, + // flash interface + flashApi: api, + // map of socket ID to sockets + sockets: {}, + // default policy port + policyPort: options.policyPort || 0, + // default policy URL + policyUrl: options.policyUrl || null + }; + net.socketPools[spId] = sp; + + // create event handler, subscribe to flash events + if(options.msie === true) { + sp.handler = function(e) { + if(e.id in sp.sockets) { + // get handler function + var f; + switch(e.type) { + case 'connect': + f = 'connected'; + break; + case 'close': + f = 'closed'; + break; + case 'socketData': + f = 'data'; + break; + default: + f = 'error'; + break; + } + /* IE calls javascript on the thread of the external object + that triggered the event (in this case flash) ... which will + either run concurrently with other javascript or pre-empt any + running javascript in the middle of its execution (BAD!) ... + calling setTimeout() will schedule the javascript to run on + the javascript thread and solve this EVIL problem. */ + setTimeout(function() {sp.sockets[e.id][f](e);}, 0); + } + }; + } else { + sp.handler = function(e) { + if(e.id in sp.sockets) { + // get handler function + var f; + switch(e.type) { + case 'connect': + f = 'connected'; + break; + case 'close': + f = 'closed'; + break; + case 'socketData': + f = 'data'; + break; + default: + f = 'error'; + break; + } + sp.sockets[e.id][f](e); + } + }; + } + var handler = 'forge.net.socketPools[\'' + spId + '\'].handler'; + api.subscribe('connect', handler); + api.subscribe('close', handler); + api.subscribe('socketData', handler); + api.subscribe('ioError', handler); + api.subscribe('securityError', handler); + + /** + * Destroys a socket pool. The socket pool still needs to be cleaned + * up via net.cleanup(). + */ + sp.destroy = function() { + delete net.socketPools[options.flashId]; + for(var id in sp.sockets) { + sp.sockets[id].destroy(); + } + sp.sockets = {}; + api.cleanup(); + }; + + /** + * Creates a new socket. + * + * @param options: + * connected: function(event) called when the socket connects. + * closed: function(event) called when the socket closes. + * data: function(event) called when socket data has arrived, + * it can be read from the socket using receive(). + * error: function(event) called when a socket error occurs. + */ + sp.createSocket = function(options) { + // default to empty options + options = options || {}; + + // create flash socket + var id = api.create(); + + // create javascript socket wrapper + var socket = { + id: id, + // set handlers + connected: options.connected || function(e) {}, + closed: options.closed || function(e) {}, + data: options.data || function(e) {}, + error: options.error || function(e) {} + }; + + /** + * Destroys this socket. + */ + socket.destroy = function() { + api.destroy(id); + delete sp.sockets[id]; + }; + + /** + * Connects this socket. + * + * @param options: + * host: the host to connect to. + * port: the port to connect to. + * policyPort: the policy port to use (if non-default), 0 to + * use the flash default. + * policyUrl: the policy file URL to use (instead of port). + */ + socket.connect = function(options) { + // give precedence to policy URL over policy port + // if no policy URL and passed port isn't 0, use default port, + // otherwise use 0 for the port + var policyUrl = options.policyUrl || null; + var policyPort = 0; + if(policyUrl === null && options.policyPort !== 0) { + policyPort = options.policyPort || sp.policyPort; + } + api.connect(id, options.host, options.port, policyPort, policyUrl); + }; + + /** + * Closes this socket. + */ + socket.close = function() { + api.close(id); + socket.closed({ + id: socket.id, + type: 'close', + bytesAvailable: 0 + }); + }; + + /** + * Determines if the socket is connected or not. + * + * @return true if connected, false if not. + */ + socket.isConnected = function() { + return api.isConnected(id); + }; + + /** + * Writes bytes to this socket. + * + * @param bytes the bytes (as a string) to write. + * + * @return true on success, false on failure. + */ + socket.send = function(bytes) { + return api.send(id, forge.util.encode64(bytes)); + }; + + /** + * Reads bytes from this socket (non-blocking). Fewer than the number + * of bytes requested may be read if enough bytes are not available. + * + * This method should be called from the data handler if there are + * enough bytes available. To see how many bytes are available, check + * the 'bytesAvailable' property on the event in the data handler or + * call the bytesAvailable() function on the socket. If the browser is + * msie, then the bytesAvailable() function should be used to avoid + * race conditions. Otherwise, using the property on the data handler's + * event may be quicker. + * + * @param count the maximum number of bytes to read. + * + * @return the bytes read (as a string) or null on error. + */ + socket.receive = function(count) { + var rval = api.receive(id, count).rval; + return (rval === null) ? null : forge.util.decode64(rval); + }; + + /** + * Gets the number of bytes available for receiving on the socket. + * + * @return the number of bytes available for receiving. + */ + socket.bytesAvailable = function() { + return api.getBytesAvailable(id); + }; + + // store and return socket + sp.sockets[id] = socket; + return socket; + }; + + return sp; +}; + +/** + * Destroys a flash socket pool. + * + * @param options: + * flashId: the dom ID for the flash object element. + */ +net.destroySocketPool = function(options) { + if(options.flashId in net.socketPools) { + var sp = net.socketPools[options.flashId]; + sp.destroy(); + } +}; + +/** + * Creates a new socket. + * + * @param options: + * flashId: the dom ID for the flash object element. + * connected: function(event) called when the socket connects. + * closed: function(event) called when the socket closes. + * data: function(event) called when socket data has arrived, it + * can be read from the socket using receive(). + * error: function(event) called when a socket error occurs. + * + * @return the created socket. + */ +net.createSocket = function(options) { + var socket = null; + if(options.flashId in net.socketPools) { + // get related socket pool + var sp = net.socketPools[options.flashId]; + socket = sp.createSocket(options); + } + return socket; +}; diff --git a/node_modules/node-forge/lib/ssh.js b/node_modules/node-forge/lib/ssh.js new file mode 100644 index 0000000..6480203 --- /dev/null +++ b/node_modules/node-forge/lib/ssh.js @@ -0,0 +1,236 @@ +/** + * Functions to output keys in SSH-friendly formats. + * + * This is part of the Forge project which may be used under the terms of + * either the BSD License or the GNU General Public License (GPL) Version 2. + * + * See: https://github.com/digitalbazaar/forge/blob/cbebca3780658703d925b61b2caffb1d263a6c1d/LICENSE + * + * @author https://github.com/shellac + */ +var forge = require('./forge'); +require('./aes'); +require('./hmac'); +require('./md5'); +require('./sha1'); +require('./util'); + +var ssh = module.exports = forge.ssh = forge.ssh || {}; + +/** + * Encodes (and optionally encrypts) a private RSA key as a Putty PPK file. + * + * @param privateKey the key. + * @param passphrase a passphrase to protect the key (falsy for no encryption). + * @param comment a comment to include in the key file. + * + * @return the PPK file as a string. + */ +ssh.privateKeyToPutty = function(privateKey, passphrase, comment) { + comment = comment || ''; + passphrase = passphrase || ''; + var algorithm = 'ssh-rsa'; + var encryptionAlgorithm = (passphrase === '') ? 'none' : 'aes256-cbc'; + + var ppk = 'PuTTY-User-Key-File-2: ' + algorithm + '\r\n'; + ppk += 'Encryption: ' + encryptionAlgorithm + '\r\n'; + ppk += 'Comment: ' + comment + '\r\n'; + + // public key into buffer for ppk + var pubbuffer = forge.util.createBuffer(); + _addStringToBuffer(pubbuffer, algorithm); + _addBigIntegerToBuffer(pubbuffer, privateKey.e); + _addBigIntegerToBuffer(pubbuffer, privateKey.n); + + // write public key + var pub = forge.util.encode64(pubbuffer.bytes(), 64); + var length = Math.floor(pub.length / 66) + 1; // 66 = 64 + \r\n + ppk += 'Public-Lines: ' + length + '\r\n'; + ppk += pub; + + // private key into a buffer + var privbuffer = forge.util.createBuffer(); + _addBigIntegerToBuffer(privbuffer, privateKey.d); + _addBigIntegerToBuffer(privbuffer, privateKey.p); + _addBigIntegerToBuffer(privbuffer, privateKey.q); + _addBigIntegerToBuffer(privbuffer, privateKey.qInv); + + // optionally encrypt the private key + var priv; + if(!passphrase) { + // use the unencrypted buffer + priv = forge.util.encode64(privbuffer.bytes(), 64); + } else { + // encrypt RSA key using passphrase + var encLen = privbuffer.length() + 16 - 1; + encLen -= encLen % 16; + + // pad private key with sha1-d data -- needs to be a multiple of 16 + var padding = _sha1(privbuffer.bytes()); + + padding.truncate(padding.length() - encLen + privbuffer.length()); + privbuffer.putBuffer(padding); + + var aeskey = forge.util.createBuffer(); + aeskey.putBuffer(_sha1('\x00\x00\x00\x00', passphrase)); + aeskey.putBuffer(_sha1('\x00\x00\x00\x01', passphrase)); + + // encrypt some bytes using CBC mode + // key is 40 bytes, so truncate *by* 8 bytes + var cipher = forge.aes.createEncryptionCipher(aeskey.truncate(8), 'CBC'); + cipher.start(forge.util.createBuffer().fillWithByte(0, 16)); + cipher.update(privbuffer.copy()); + cipher.finish(); + var encrypted = cipher.output; + + // Note: this appears to differ from Putty -- is forge wrong, or putty? + // due to padding we finish as an exact multiple of 16 + encrypted.truncate(16); // all padding + + priv = forge.util.encode64(encrypted.bytes(), 64); + } + + // output private key + length = Math.floor(priv.length / 66) + 1; // 64 + \r\n + ppk += '\r\nPrivate-Lines: ' + length + '\r\n'; + ppk += priv; + + // MAC + var mackey = _sha1('putty-private-key-file-mac-key', passphrase); + + var macbuffer = forge.util.createBuffer(); + _addStringToBuffer(macbuffer, algorithm); + _addStringToBuffer(macbuffer, encryptionAlgorithm); + _addStringToBuffer(macbuffer, comment); + macbuffer.putInt32(pubbuffer.length()); + macbuffer.putBuffer(pubbuffer); + macbuffer.putInt32(privbuffer.length()); + macbuffer.putBuffer(privbuffer); + + var hmac = forge.hmac.create(); + hmac.start('sha1', mackey); + hmac.update(macbuffer.bytes()); + + ppk += '\r\nPrivate-MAC: ' + hmac.digest().toHex() + '\r\n'; + + return ppk; +}; + +/** + * Encodes a public RSA key as an OpenSSH file. + * + * @param key the key. + * @param comment a comment. + * + * @return the public key in OpenSSH format. + */ +ssh.publicKeyToOpenSSH = function(key, comment) { + var type = 'ssh-rsa'; + comment = comment || ''; + + var buffer = forge.util.createBuffer(); + _addStringToBuffer(buffer, type); + _addBigIntegerToBuffer(buffer, key.e); + _addBigIntegerToBuffer(buffer, key.n); + + return type + ' ' + forge.util.encode64(buffer.bytes()) + ' ' + comment; +}; + +/** + * Encodes a private RSA key as an OpenSSH file. + * + * @param key the key. + * @param passphrase a passphrase to protect the key (falsy for no encryption). + * + * @return the public key in OpenSSH format. + */ +ssh.privateKeyToOpenSSH = function(privateKey, passphrase) { + if(!passphrase) { + return forge.pki.privateKeyToPem(privateKey); + } + // OpenSSH private key is just a legacy format, it seems + return forge.pki.encryptRsaPrivateKey(privateKey, passphrase, + {legacy: true, algorithm: 'aes128'}); +}; + +/** + * Gets the SSH fingerprint for the given public key. + * + * @param options the options to use. + * [md] the message digest object to use (defaults to forge.md.md5). + * [encoding] an alternative output encoding, such as 'hex' + * (defaults to none, outputs a byte buffer). + * [delimiter] the delimiter to use between bytes for 'hex' encoded + * output, eg: ':' (defaults to none). + * + * @return the fingerprint as a byte buffer or other encoding based on options. + */ +ssh.getPublicKeyFingerprint = function(key, options) { + options = options || {}; + var md = options.md || forge.md.md5.create(); + + var type = 'ssh-rsa'; + var buffer = forge.util.createBuffer(); + _addStringToBuffer(buffer, type); + _addBigIntegerToBuffer(buffer, key.e); + _addBigIntegerToBuffer(buffer, key.n); + + // hash public key bytes + md.start(); + md.update(buffer.getBytes()); + var digest = md.digest(); + if(options.encoding === 'hex') { + var hex = digest.toHex(); + if(options.delimiter) { + return hex.match(/.{2}/g).join(options.delimiter); + } + return hex; + } else if(options.encoding === 'binary') { + return digest.getBytes(); + } else if(options.encoding) { + throw new Error('Unknown encoding "' + options.encoding + '".'); + } + return digest; +}; + +/** + * Adds len(val) then val to a buffer. + * + * @param buffer the buffer to add to. + * @param val a big integer. + */ +function _addBigIntegerToBuffer(buffer, val) { + var hexVal = val.toString(16); + // ensure 2s complement +ve + if(hexVal[0] >= '8') { + hexVal = '00' + hexVal; + } + var bytes = forge.util.hexToBytes(hexVal); + buffer.putInt32(bytes.length); + buffer.putBytes(bytes); +} + +/** + * Adds len(val) then val to a buffer. + * + * @param buffer the buffer to add to. + * @param val a string. + */ +function _addStringToBuffer(buffer, val) { + buffer.putInt32(val.length); + buffer.putString(val); +} + +/** + * Hashes the arguments into one value using SHA-1. + * + * @return the sha1 hash of the provided arguments. + */ +function _sha1() { + var sha = forge.md.sha1.create(); + var num = arguments.length; + for (var i = 0; i < num; ++i) { + sha.update(arguments[i]); + } + return sha.digest(); +} diff --git a/node_modules/node-forge/lib/tls.js b/node_modules/node-forge/lib/tls.js new file mode 100644 index 0000000..fadfd64 --- /dev/null +++ b/node_modules/node-forge/lib/tls.js @@ -0,0 +1,4282 @@ +/** + * A Javascript implementation of Transport Layer Security (TLS). + * + * @author Dave Longley + * + * Copyright (c) 2009-2014 Digital Bazaar, Inc. + * + * The TLS Handshake Protocol involves the following steps: + * + * - Exchange hello messages to agree on algorithms, exchange random values, + * and check for session resumption. + * + * - Exchange the necessary cryptographic parameters to allow the client and + * server to agree on a premaster secret. + * + * - Exchange certificates and cryptographic information to allow the client + * and server to authenticate themselves. + * + * - Generate a master secret from the premaster secret and exchanged random + * values. + * + * - Provide security parameters to the record layer. + * + * - Allow the client and server to verify that their peer has calculated the + * same security parameters and that the handshake occurred without tampering + * by an attacker. + * + * Up to 4 different messages may be sent during a key exchange. The server + * certificate, the server key exchange, the client certificate, and the + * client key exchange. + * + * A typical handshake (from the client's perspective). + * + * 1. Client sends ClientHello. + * 2. Client receives ServerHello. + * 3. Client receives optional Certificate. + * 4. Client receives optional ServerKeyExchange. + * 5. Client receives ServerHelloDone. + * 6. Client sends optional Certificate. + * 7. Client sends ClientKeyExchange. + * 8. Client sends optional CertificateVerify. + * 9. Client sends ChangeCipherSpec. + * 10. Client sends Finished. + * 11. Client receives ChangeCipherSpec. + * 12. Client receives Finished. + * 13. Client sends/receives application data. + * + * To reuse an existing session: + * + * 1. Client sends ClientHello with session ID for reuse. + * 2. Client receives ServerHello with same session ID if reusing. + * 3. Client receives ChangeCipherSpec message if reusing. + * 4. Client receives Finished. + * 5. Client sends ChangeCipherSpec. + * 6. Client sends Finished. + * + * Note: Client ignores HelloRequest if in the middle of a handshake. + * + * Record Layer: + * + * The record layer fragments information blocks into TLSPlaintext records + * carrying data in chunks of 2^14 bytes or less. Client message boundaries are + * not preserved in the record layer (i.e., multiple client messages of the + * same ContentType MAY be coalesced into a single TLSPlaintext record, or a + * single message MAY be fragmented across several records). + * + * struct { + * uint8 major; + * uint8 minor; + * } ProtocolVersion; + * + * struct { + * ContentType type; + * ProtocolVersion version; + * uint16 length; + * opaque fragment[TLSPlaintext.length]; + * } TLSPlaintext; + * + * type: + * The higher-level protocol used to process the enclosed fragment. + * + * version: + * The version of the protocol being employed. TLS Version 1.2 uses version + * {3, 3}. TLS Version 1.0 uses version {3, 1}. Note that a client that + * supports multiple versions of TLS may not know what version will be + * employed before it receives the ServerHello. + * + * length: + * The length (in bytes) of the following TLSPlaintext.fragment. The length + * MUST NOT exceed 2^14 = 16384 bytes. + * + * fragment: + * The application data. This data is transparent and treated as an + * independent block to be dealt with by the higher-level protocol specified + * by the type field. + * + * Implementations MUST NOT send zero-length fragments of Handshake, Alert, or + * ChangeCipherSpec content types. Zero-length fragments of Application data + * MAY be sent as they are potentially useful as a traffic analysis + * countermeasure. + * + * Note: Data of different TLS record layer content types MAY be interleaved. + * Application data is generally of lower precedence for transmission than + * other content types. However, records MUST be delivered to the network in + * the same order as they are protected by the record layer. Recipients MUST + * receive and process interleaved application layer traffic during handshakes + * subsequent to the first one on a connection. + * + * struct { + * ContentType type; // same as TLSPlaintext.type + * ProtocolVersion version;// same as TLSPlaintext.version + * uint16 length; + * opaque fragment[TLSCompressed.length]; + * } TLSCompressed; + * + * length: + * The length (in bytes) of the following TLSCompressed.fragment. + * The length MUST NOT exceed 2^14 + 1024. + * + * fragment: + * The compressed form of TLSPlaintext.fragment. + * + * Note: A CompressionMethod.null operation is an identity operation; no fields + * are altered. In this implementation, since no compression is supported, + * uncompressed records are always the same as compressed records. + * + * Encryption Information: + * + * The encryption and MAC functions translate a TLSCompressed structure into a + * TLSCiphertext. The decryption functions reverse the process. The MAC of the + * record also includes a sequence number so that missing, extra, or repeated + * messages are detectable. + * + * struct { + * ContentType type; + * ProtocolVersion version; + * uint16 length; + * select (SecurityParameters.cipher_type) { + * case stream: GenericStreamCipher; + * case block: GenericBlockCipher; + * case aead: GenericAEADCipher; + * } fragment; + * } TLSCiphertext; + * + * type: + * The type field is identical to TLSCompressed.type. + * + * version: + * The version field is identical to TLSCompressed.version. + * + * length: + * The length (in bytes) of the following TLSCiphertext.fragment. + * The length MUST NOT exceed 2^14 + 2048. + * + * fragment: + * The encrypted form of TLSCompressed.fragment, with the MAC. + * + * Note: Only CBC Block Ciphers are supported by this implementation. + * + * The TLSCompressed.fragment structures are converted to/from block + * TLSCiphertext.fragment structures. + * + * struct { + * opaque IV[SecurityParameters.record_iv_length]; + * block-ciphered struct { + * opaque content[TLSCompressed.length]; + * opaque MAC[SecurityParameters.mac_length]; + * uint8 padding[GenericBlockCipher.padding_length]; + * uint8 padding_length; + * }; + * } GenericBlockCipher; + * + * The MAC is generated as described in Section 6.2.3.1. + * + * IV: + * The Initialization Vector (IV) SHOULD be chosen at random, and MUST be + * unpredictable. Note that in versions of TLS prior to 1.1, there was no + * IV field, and the last ciphertext block of the previous record (the "CBC + * residue") was used as the IV. This was changed to prevent the attacks + * described in [CBCATT]. For block ciphers, the IV length is of length + * SecurityParameters.record_iv_length, which is equal to the + * SecurityParameters.block_size. + * + * padding: + * Padding that is added to force the length of the plaintext to be an + * integral multiple of the block cipher's block length. The padding MAY be + * any length up to 255 bytes, as long as it results in the + * TLSCiphertext.length being an integral multiple of the block length. + * Lengths longer than necessary might be desirable to frustrate attacks on + * a protocol that are based on analysis of the lengths of exchanged + * messages. Each uint8 in the padding data vector MUST be filled with the + * padding length value. The receiver MUST check this padding and MUST use + * the bad_record_mac alert to indicate padding errors. + * + * padding_length: + * The padding length MUST be such that the total size of the + * GenericBlockCipher structure is a multiple of the cipher's block length. + * Legal values range from zero to 255, inclusive. This length specifies the + * length of the padding field exclusive of the padding_length field itself. + * + * The encrypted data length (TLSCiphertext.length) is one more than the sum of + * SecurityParameters.block_length, TLSCompressed.length, + * SecurityParameters.mac_length, and padding_length. + * + * Example: If the block length is 8 bytes, the content length + * (TLSCompressed.length) is 61 bytes, and the MAC length is 20 bytes, then the + * length before padding is 82 bytes (this does not include the IV. Thus, the + * padding length modulo 8 must be equal to 6 in order to make the total length + * an even multiple of 8 bytes (the block length). The padding length can be + * 6, 14, 22, and so on, through 254. If the padding length were the minimum + * necessary, 6, the padding would be 6 bytes, each containing the value 6. + * Thus, the last 8 octets of the GenericBlockCipher before block encryption + * would be xx 06 06 06 06 06 06 06, where xx is the last octet of the MAC. + * + * Note: With block ciphers in CBC mode (Cipher Block Chaining), it is critical + * that the entire plaintext of the record be known before any ciphertext is + * transmitted. Otherwise, it is possible for the attacker to mount the attack + * described in [CBCATT]. + * + * Implementation note: Canvel et al. [CBCTIME] have demonstrated a timing + * attack on CBC padding based on the time required to compute the MAC. In + * order to defend against this attack, implementations MUST ensure that + * record processing time is essentially the same whether or not the padding + * is correct. In general, the best way to do this is to compute the MAC even + * if the padding is incorrect, and only then reject the packet. For instance, + * if the pad appears to be incorrect, the implementation might assume a + * zero-length pad and then compute the MAC. This leaves a small timing + * channel, since MAC performance depends, to some extent, on the size of the + * data fragment, but it is not believed to be large enough to be exploitable, + * due to the large block size of existing MACs and the small size of the + * timing signal. + */ +var forge = require('./forge'); +require('./asn1'); +require('./hmac'); +require('./md5'); +require('./pem'); +require('./pki'); +require('./random'); +require('./sha1'); +require('./util'); + +/** + * Generates pseudo random bytes by mixing the result of two hash functions, + * MD5 and SHA-1. + * + * prf_TLS1(secret, label, seed) = + * P_MD5(S1, label + seed) XOR P_SHA-1(S2, label + seed); + * + * Each P_hash function functions as follows: + * + * P_hash(secret, seed) = HMAC_hash(secret, A(1) + seed) + + * HMAC_hash(secret, A(2) + seed) + + * HMAC_hash(secret, A(3) + seed) + ... + * A() is defined as: + * A(0) = seed + * A(i) = HMAC_hash(secret, A(i-1)) + * + * The '+' operator denotes concatenation. + * + * As many iterations A(N) as are needed are performed to generate enough + * pseudo random byte output. If an iteration creates more data than is + * necessary, then it is truncated. + * + * Therefore: + * A(1) = HMAC_hash(secret, A(0)) + * = HMAC_hash(secret, seed) + * A(2) = HMAC_hash(secret, A(1)) + * = HMAC_hash(secret, HMAC_hash(secret, seed)) + * + * Therefore: + * P_hash(secret, seed) = + * HMAC_hash(secret, HMAC_hash(secret, A(0)) + seed) + + * HMAC_hash(secret, HMAC_hash(secret, A(1)) + seed) + + * ... + * + * Therefore: + * P_hash(secret, seed) = + * HMAC_hash(secret, HMAC_hash(secret, seed) + seed) + + * HMAC_hash(secret, HMAC_hash(secret, HMAC_hash(secret, seed)) + seed) + + * ... + * + * @param secret the secret to use. + * @param label the label to use. + * @param seed the seed value to use. + * @param length the number of bytes to generate. + * + * @return the pseudo random bytes in a byte buffer. + */ +var prf_TLS1 = function(secret, label, seed, length) { + var rval = forge.util.createBuffer(); + + /* For TLS 1.0, the secret is split in half, into two secrets of equal + length. If the secret has an odd length then the last byte of the first + half will be the same as the first byte of the second. The length of the + two secrets is half of the secret rounded up. */ + var idx = (secret.length >> 1); + var slen = idx + (secret.length & 1); + var s1 = secret.substr(0, slen); + var s2 = secret.substr(idx, slen); + var ai = forge.util.createBuffer(); + var hmac = forge.hmac.create(); + seed = label + seed; + + // determine the number of iterations that must be performed to generate + // enough output bytes, md5 creates 16 byte hashes, sha1 creates 20 + var md5itr = Math.ceil(length / 16); + var sha1itr = Math.ceil(length / 20); + + // do md5 iterations + hmac.start('MD5', s1); + var md5bytes = forge.util.createBuffer(); + ai.putBytes(seed); + for(var i = 0; i < md5itr; ++i) { + // HMAC_hash(secret, A(i-1)) + hmac.start(null, null); + hmac.update(ai.getBytes()); + ai.putBuffer(hmac.digest()); + + // HMAC_hash(secret, A(i) + seed) + hmac.start(null, null); + hmac.update(ai.bytes() + seed); + md5bytes.putBuffer(hmac.digest()); + } + + // do sha1 iterations + hmac.start('SHA1', s2); + var sha1bytes = forge.util.createBuffer(); + ai.clear(); + ai.putBytes(seed); + for(var i = 0; i < sha1itr; ++i) { + // HMAC_hash(secret, A(i-1)) + hmac.start(null, null); + hmac.update(ai.getBytes()); + ai.putBuffer(hmac.digest()); + + // HMAC_hash(secret, A(i) + seed) + hmac.start(null, null); + hmac.update(ai.bytes() + seed); + sha1bytes.putBuffer(hmac.digest()); + } + + // XOR the md5 bytes with the sha1 bytes + rval.putBytes(forge.util.xorBytes( + md5bytes.getBytes(), sha1bytes.getBytes(), length)); + + return rval; +}; + +/** + * Generates pseudo random bytes using a SHA256 algorithm. For TLS 1.2. + * + * @param secret the secret to use. + * @param label the label to use. + * @param seed the seed value to use. + * @param length the number of bytes to generate. + * + * @return the pseudo random bytes in a byte buffer. + */ +var prf_sha256 = function(secret, label, seed, length) { + // FIXME: implement me for TLS 1.2 +}; + +/** + * Gets a MAC for a record using the SHA-1 hash algorithm. + * + * @param key the mac key. + * @param state the sequence number (array of two 32-bit integers). + * @param record the record. + * + * @return the sha-1 hash (20 bytes) for the given record. + */ +var hmac_sha1 = function(key, seqNum, record) { + /* MAC is computed like so: + HMAC_hash( + key, seqNum + + TLSCompressed.type + + TLSCompressed.version + + TLSCompressed.length + + TLSCompressed.fragment) + */ + var hmac = forge.hmac.create(); + hmac.start('SHA1', key); + var b = forge.util.createBuffer(); + b.putInt32(seqNum[0]); + b.putInt32(seqNum[1]); + b.putByte(record.type); + b.putByte(record.version.major); + b.putByte(record.version.minor); + b.putInt16(record.length); + b.putBytes(record.fragment.bytes()); + hmac.update(b.getBytes()); + return hmac.digest().getBytes(); +}; + +/** + * Compresses the TLSPlaintext record into a TLSCompressed record using the + * deflate algorithm. + * + * @param c the TLS connection. + * @param record the TLSPlaintext record to compress. + * @param s the ConnectionState to use. + * + * @return true on success, false on failure. + */ +var deflate = function(c, record, s) { + var rval = false; + + try { + var bytes = c.deflate(record.fragment.getBytes()); + record.fragment = forge.util.createBuffer(bytes); + record.length = bytes.length; + rval = true; + } catch(ex) { + // deflate error, fail out + } + + return rval; +}; + +/** + * Decompresses the TLSCompressed record into a TLSPlaintext record using the + * deflate algorithm. + * + * @param c the TLS connection. + * @param record the TLSCompressed record to decompress. + * @param s the ConnectionState to use. + * + * @return true on success, false on failure. + */ +var inflate = function(c, record, s) { + var rval = false; + + try { + var bytes = c.inflate(record.fragment.getBytes()); + record.fragment = forge.util.createBuffer(bytes); + record.length = bytes.length; + rval = true; + } catch(ex) { + // inflate error, fail out + } + + return rval; +}; + +/** + * Reads a TLS variable-length vector from a byte buffer. + * + * Variable-length vectors are defined by specifying a subrange of legal + * lengths, inclusively, using the notation . When these are + * encoded, the actual length precedes the vector's contents in the byte + * stream. The length will be in the form of a number consuming as many bytes + * as required to hold the vector's specified maximum (ceiling) length. A + * variable-length vector with an actual length field of zero is referred to + * as an empty vector. + * + * @param b the byte buffer. + * @param lenBytes the number of bytes required to store the length. + * + * @return the resulting byte buffer. + */ +var readVector = function(b, lenBytes) { + var len = 0; + switch(lenBytes) { + case 1: + len = b.getByte(); + break; + case 2: + len = b.getInt16(); + break; + case 3: + len = b.getInt24(); + break; + case 4: + len = b.getInt32(); + break; + } + + // read vector bytes into a new buffer + return forge.util.createBuffer(b.getBytes(len)); +}; + +/** + * Writes a TLS variable-length vector to a byte buffer. + * + * @param b the byte buffer. + * @param lenBytes the number of bytes required to store the length. + * @param v the byte buffer vector. + */ +var writeVector = function(b, lenBytes, v) { + // encode length at the start of the vector, where the number of bytes for + // the length is the maximum number of bytes it would take to encode the + // vector's ceiling + b.putInt(v.length(), lenBytes << 3); + b.putBuffer(v); +}; + +/** + * The tls implementation. + */ +var tls = {}; + +/** + * Version: TLS 1.2 = 3.3, TLS 1.1 = 3.2, TLS 1.0 = 3.1. Both TLS 1.1 and + * TLS 1.2 were still too new (ie: openSSL didn't implement them) at the time + * of this implementation so TLS 1.0 was implemented instead. + */ +tls.Versions = { + TLS_1_0: {major: 3, minor: 1}, + TLS_1_1: {major: 3, minor: 2}, + TLS_1_2: {major: 3, minor: 3} +}; +tls.SupportedVersions = [ + tls.Versions.TLS_1_1, + tls.Versions.TLS_1_0 +]; +tls.Version = tls.SupportedVersions[0]; + +/** + * Maximum fragment size. True maximum is 16384, but we fragment before that + * to allow for unusual small increases during compression. + */ +tls.MaxFragment = 16384 - 1024; + +/** + * Whether this entity is considered the "client" or "server". + * enum { server, client } ConnectionEnd; + */ +tls.ConnectionEnd = { + server: 0, + client: 1 +}; + +/** + * Pseudo-random function algorithm used to generate keys from the master + * secret. + * enum { tls_prf_sha256 } PRFAlgorithm; + */ +tls.PRFAlgorithm = { + tls_prf_sha256: 0 +}; + +/** + * Bulk encryption algorithms. + * enum { null, rc4, des3, aes } BulkCipherAlgorithm; + */ +tls.BulkCipherAlgorithm = { + none: null, + rc4: 0, + des3: 1, + aes: 2 +}; + +/** + * Cipher types. + * enum { stream, block, aead } CipherType; + */ +tls.CipherType = { + stream: 0, + block: 1, + aead: 2 +}; + +/** + * MAC (Message Authentication Code) algorithms. + * enum { null, hmac_md5, hmac_sha1, hmac_sha256, + * hmac_sha384, hmac_sha512} MACAlgorithm; + */ +tls.MACAlgorithm = { + none: null, + hmac_md5: 0, + hmac_sha1: 1, + hmac_sha256: 2, + hmac_sha384: 3, + hmac_sha512: 4 +}; + +/** + * Compression algorithms. + * enum { null(0), deflate(1), (255) } CompressionMethod; + */ +tls.CompressionMethod = { + none: 0, + deflate: 1 +}; + +/** + * TLS record content types. + * enum { + * change_cipher_spec(20), alert(21), handshake(22), + * application_data(23), (255) + * } ContentType; + */ +tls.ContentType = { + change_cipher_spec: 20, + alert: 21, + handshake: 22, + application_data: 23, + heartbeat: 24 +}; + +/** + * TLS handshake types. + * enum { + * hello_request(0), client_hello(1), server_hello(2), + * certificate(11), server_key_exchange (12), + * certificate_request(13), server_hello_done(14), + * certificate_verify(15), client_key_exchange(16), + * finished(20), (255) + * } HandshakeType; + */ +tls.HandshakeType = { + hello_request: 0, + client_hello: 1, + server_hello: 2, + certificate: 11, + server_key_exchange: 12, + certificate_request: 13, + server_hello_done: 14, + certificate_verify: 15, + client_key_exchange: 16, + finished: 20 +}; + +/** + * TLS Alert Protocol. + * + * enum { warning(1), fatal(2), (255) } AlertLevel; + * + * enum { + * close_notify(0), + * unexpected_message(10), + * bad_record_mac(20), + * decryption_failed(21), + * record_overflow(22), + * decompression_failure(30), + * handshake_failure(40), + * bad_certificate(42), + * unsupported_certificate(43), + * certificate_revoked(44), + * certificate_expired(45), + * certificate_unknown(46), + * illegal_parameter(47), + * unknown_ca(48), + * access_denied(49), + * decode_error(50), + * decrypt_error(51), + * export_restriction(60), + * protocol_version(70), + * insufficient_security(71), + * internal_error(80), + * user_canceled(90), + * no_renegotiation(100), + * (255) + * } AlertDescription; + * + * struct { + * AlertLevel level; + * AlertDescription description; + * } Alert; + */ +tls.Alert = {}; +tls.Alert.Level = { + warning: 1, + fatal: 2 +}; +tls.Alert.Description = { + close_notify: 0, + unexpected_message: 10, + bad_record_mac: 20, + decryption_failed: 21, + record_overflow: 22, + decompression_failure: 30, + handshake_failure: 40, + bad_certificate: 42, + unsupported_certificate: 43, + certificate_revoked: 44, + certificate_expired: 45, + certificate_unknown: 46, + illegal_parameter: 47, + unknown_ca: 48, + access_denied: 49, + decode_error: 50, + decrypt_error: 51, + export_restriction: 60, + protocol_version: 70, + insufficient_security: 71, + internal_error: 80, + user_canceled: 90, + no_renegotiation: 100 +}; + +/** + * TLS Heartbeat Message types. + * enum { + * heartbeat_request(1), + * heartbeat_response(2), + * (255) + * } HeartbeatMessageType; + */ +tls.HeartbeatMessageType = { + heartbeat_request: 1, + heartbeat_response: 2 +}; + +/** + * Supported cipher suites. + */ +tls.CipherSuites = {}; + +/** + * Gets a supported cipher suite from its 2 byte ID. + * + * @param twoBytes two bytes in a string. + * + * @return the matching supported cipher suite or null. + */ +tls.getCipherSuite = function(twoBytes) { + var rval = null; + for(var key in tls.CipherSuites) { + var cs = tls.CipherSuites[key]; + if(cs.id[0] === twoBytes.charCodeAt(0) && + cs.id[1] === twoBytes.charCodeAt(1)) { + rval = cs; + break; + } + } + return rval; +}; + +/** + * Called when an unexpected record is encountered. + * + * @param c the connection. + * @param record the record. + */ +tls.handleUnexpected = function(c, record) { + // if connection is client and closed, ignore unexpected messages + var ignore = (!c.open && c.entity === tls.ConnectionEnd.client); + if(!ignore) { + c.error(c, { + message: 'Unexpected message. Received TLS record out of order.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.unexpected_message + } + }); + } +}; + +/** + * Called when a client receives a HelloRequest record. + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleHelloRequest = function(c, record, length) { + // ignore renegotiation requests from the server during a handshake, but + // if handshaking, send a warning alert that renegotation is denied + if(!c.handshaking && c.handshakes > 0) { + // send alert warning + tls.queue(c, tls.createAlert(c, { + level: tls.Alert.Level.warning, + description: tls.Alert.Description.no_renegotiation + })); + tls.flush(c); + } + + // continue + c.process(); +}; + +/** + * Parses a hello message from a ClientHello or ServerHello record. + * + * @param record the record to parse. + * + * @return the parsed message. + */ +tls.parseHelloMessage = function(c, record, length) { + var msg = null; + + var client = (c.entity === tls.ConnectionEnd.client); + + // minimum of 38 bytes in message + if(length < 38) { + c.error(c, { + message: client ? + 'Invalid ServerHello message. Message too short.' : + 'Invalid ClientHello message. Message too short.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.illegal_parameter + } + }); + } else { + // use 'remaining' to calculate # of remaining bytes in the message + var b = record.fragment; + var remaining = b.length(); + msg = { + version: { + major: b.getByte(), + minor: b.getByte() + }, + random: forge.util.createBuffer(b.getBytes(32)), + session_id: readVector(b, 1), + extensions: [] + }; + if(client) { + msg.cipher_suite = b.getBytes(2); + msg.compression_method = b.getByte(); + } else { + msg.cipher_suites = readVector(b, 2); + msg.compression_methods = readVector(b, 1); + } + + // read extensions if there are any bytes left in the message + remaining = length - (remaining - b.length()); + if(remaining > 0) { + // parse extensions + var exts = readVector(b, 2); + while(exts.length() > 0) { + msg.extensions.push({ + type: [exts.getByte(), exts.getByte()], + data: readVector(exts, 2) + }); + } + + // TODO: make extension support modular + if(!client) { + for(var i = 0; i < msg.extensions.length; ++i) { + var ext = msg.extensions[i]; + + // support SNI extension + if(ext.type[0] === 0x00 && ext.type[1] === 0x00) { + // get server name list + var snl = readVector(ext.data, 2); + while(snl.length() > 0) { + // read server name type + var snType = snl.getByte(); + + // only HostName type (0x00) is known, break out if + // another type is detected + if(snType !== 0x00) { + break; + } + + // add host name to server name list + c.session.extensions.server_name.serverNameList.push( + readVector(snl, 2).getBytes()); + } + } + } + } + } + + // version already set, do not allow version change + if(c.session.version) { + if(msg.version.major !== c.session.version.major || + msg.version.minor !== c.session.version.minor) { + return c.error(c, { + message: 'TLS version change is disallowed during renegotiation.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.protocol_version + } + }); + } + } + + // get the chosen (ServerHello) cipher suite + if(client) { + // FIXME: should be checking configured acceptable cipher suites + c.session.cipherSuite = tls.getCipherSuite(msg.cipher_suite); + } else { + // get a supported preferred (ClientHello) cipher suite + // choose the first supported cipher suite + var tmp = forge.util.createBuffer(msg.cipher_suites.bytes()); + while(tmp.length() > 0) { + // FIXME: should be checking configured acceptable suites + // cipher suites take up 2 bytes + c.session.cipherSuite = tls.getCipherSuite(tmp.getBytes(2)); + if(c.session.cipherSuite !== null) { + break; + } + } + } + + // cipher suite not supported + if(c.session.cipherSuite === null) { + return c.error(c, { + message: 'No cipher suites in common.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.handshake_failure + }, + cipherSuite: forge.util.bytesToHex(msg.cipher_suite) + }); + } + + // TODO: handle compression methods + if(client) { + c.session.compressionMethod = msg.compression_method; + } else { + // no compression + c.session.compressionMethod = tls.CompressionMethod.none; + } + } + + return msg; +}; + +/** + * Creates security parameters for the given connection based on the given + * hello message. + * + * @param c the TLS connection. + * @param msg the hello message. + */ +tls.createSecurityParameters = function(c, msg) { + /* Note: security params are from TLS 1.2, some values like prf_algorithm + are ignored for TLS 1.0/1.1 and the builtin as specified in the spec is + used. */ + + // TODO: handle other options from server when more supported + + // get client and server randoms + var client = (c.entity === tls.ConnectionEnd.client); + var msgRandom = msg.random.bytes(); + var cRandom = client ? c.session.sp.client_random : msgRandom; + var sRandom = client ? msgRandom : tls.createRandom().getBytes(); + + // create new security parameters + c.session.sp = { + entity: c.entity, + prf_algorithm: tls.PRFAlgorithm.tls_prf_sha256, + bulk_cipher_algorithm: null, + cipher_type: null, + enc_key_length: null, + block_length: null, + fixed_iv_length: null, + record_iv_length: null, + mac_algorithm: null, + mac_length: null, + mac_key_length: null, + compression_algorithm: c.session.compressionMethod, + pre_master_secret: null, + master_secret: null, + client_random: cRandom, + server_random: sRandom + }; +}; + +/** + * Called when a client receives a ServerHello record. + * + * When a ServerHello message will be sent: + * The server will send this message in response to a client hello message + * when it was able to find an acceptable set of algorithms. If it cannot + * find such a match, it will respond with a handshake failure alert. + * + * uint24 length; + * struct { + * ProtocolVersion server_version; + * Random random; + * SessionID session_id; + * CipherSuite cipher_suite; + * CompressionMethod compression_method; + * select(extensions_present) { + * case false: + * struct {}; + * case true: + * Extension extensions<0..2^16-1>; + * }; + * } ServerHello; + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleServerHello = function(c, record, length) { + var msg = tls.parseHelloMessage(c, record, length); + if(c.fail) { + return; + } + + // ensure server version is compatible + if(msg.version.minor <= c.version.minor) { + c.version.minor = msg.version.minor; + } else { + return c.error(c, { + message: 'Incompatible TLS version.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.protocol_version + } + }); + } + + // indicate session version has been set + c.session.version = c.version; + + // get the session ID from the message + var sessionId = msg.session_id.bytes(); + + // if the session ID is not blank and matches the cached one, resume + // the session + if(sessionId.length > 0 && sessionId === c.session.id) { + // resuming session, expect a ChangeCipherSpec next + c.expect = SCC; + c.session.resuming = true; + + // get new server random + c.session.sp.server_random = msg.random.bytes(); + } else { + // not resuming, expect a server Certificate message next + c.expect = SCE; + c.session.resuming = false; + + // create new security parameters + tls.createSecurityParameters(c, msg); + } + + // set new session ID + c.session.id = sessionId; + + // continue + c.process(); +}; + +/** + * Called when a server receives a ClientHello record. + * + * When a ClientHello message will be sent: + * When a client first connects to a server it is required to send the + * client hello as its first message. The client can also send a client + * hello in response to a hello request or on its own initiative in order + * to renegotiate the security parameters in an existing connection. + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleClientHello = function(c, record, length) { + var msg = tls.parseHelloMessage(c, record, length); + if(c.fail) { + return; + } + + // get the session ID from the message + var sessionId = msg.session_id.bytes(); + + // see if the given session ID is in the cache + var session = null; + if(c.sessionCache) { + session = c.sessionCache.getSession(sessionId); + if(session === null) { + // session ID not found + sessionId = ''; + } else if(session.version.major !== msg.version.major || + session.version.minor > msg.version.minor) { + // if session version is incompatible with client version, do not resume + session = null; + sessionId = ''; + } + } + + // no session found to resume, generate a new session ID + if(sessionId.length === 0) { + sessionId = forge.random.getBytes(32); + } + + // update session + c.session.id = sessionId; + c.session.clientHelloVersion = msg.version; + c.session.sp = {}; + if(session) { + // use version and security parameters from resumed session + c.version = c.session.version = session.version; + c.session.sp = session.sp; + } else { + // use highest compatible minor version + var version; + for(var i = 1; i < tls.SupportedVersions.length; ++i) { + version = tls.SupportedVersions[i]; + if(version.minor <= msg.version.minor) { + break; + } + } + c.version = {major: version.major, minor: version.minor}; + c.session.version = c.version; + } + + // if a session is set, resume it + if(session !== null) { + // resuming session, expect a ChangeCipherSpec next + c.expect = CCC; + c.session.resuming = true; + + // get new client random + c.session.sp.client_random = msg.random.bytes(); + } else { + // not resuming, expect a Certificate or ClientKeyExchange + c.expect = (c.verifyClient !== false) ? CCE : CKE; + c.session.resuming = false; + + // create new security parameters + tls.createSecurityParameters(c, msg); + } + + // connection now open + c.open = true; + + // queue server hello + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createServerHello(c) + })); + + if(c.session.resuming) { + // queue change cipher spec message + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.change_cipher_spec, + data: tls.createChangeCipherSpec() + })); + + // create pending state + c.state.pending = tls.createConnectionState(c); + + // change current write state to pending write state + c.state.current.write = c.state.pending.write; + + // queue finished + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createFinished(c) + })); + } else { + // queue server certificate + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createCertificate(c) + })); + + if(!c.fail) { + // queue server key exchange + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createServerKeyExchange(c) + })); + + // request client certificate if set + if(c.verifyClient !== false) { + // queue certificate request + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createCertificateRequest(c) + })); + } + + // queue server hello done + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createServerHelloDone(c) + })); + } + } + + // send records + tls.flush(c); + + // continue + c.process(); +}; + +/** + * Called when a client receives a Certificate record. + * + * When this message will be sent: + * The server must send a certificate whenever the agreed-upon key exchange + * method is not an anonymous one. This message will always immediately + * follow the server hello message. + * + * Meaning of this message: + * The certificate type must be appropriate for the selected cipher suite's + * key exchange algorithm, and is generally an X.509v3 certificate. It must + * contain a key which matches the key exchange method, as follows. Unless + * otherwise specified, the signing algorithm for the certificate must be + * the same as the algorithm for the certificate key. Unless otherwise + * specified, the public key may be of any length. + * + * opaque ASN.1Cert<1..2^24-1>; + * struct { + * ASN.1Cert certificate_list<1..2^24-1>; + * } Certificate; + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleCertificate = function(c, record, length) { + // minimum of 3 bytes in message + if(length < 3) { + return c.error(c, { + message: 'Invalid Certificate message. Message too short.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.illegal_parameter + } + }); + } + + var b = record.fragment; + var msg = { + certificate_list: readVector(b, 3) + }; + + /* The sender's certificate will be first in the list (chain), each + subsequent one that follows will certify the previous one, but root + certificates (self-signed) that specify the certificate authority may + be omitted under the assumption that clients must already possess it. */ + var cert, asn1; + var certs = []; + try { + while(msg.certificate_list.length() > 0) { + // each entry in msg.certificate_list is a vector with 3 len bytes + cert = readVector(msg.certificate_list, 3); + asn1 = forge.asn1.fromDer(cert); + cert = forge.pki.certificateFromAsn1(asn1, true); + certs.push(cert); + } + } catch(ex) { + return c.error(c, { + message: 'Could not parse certificate list.', + cause: ex, + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.bad_certificate + } + }); + } + + // ensure at least 1 certificate was provided if in client-mode + // or if verifyClient was set to true to require a certificate + // (as opposed to 'optional') + var client = (c.entity === tls.ConnectionEnd.client); + if((client || c.verifyClient === true) && certs.length === 0) { + // error, no certificate + c.error(c, { + message: client ? + 'No server certificate provided.' : + 'No client certificate provided.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.illegal_parameter + } + }); + } else if(certs.length === 0) { + // no certs to verify + // expect a ServerKeyExchange or ClientKeyExchange message next + c.expect = client ? SKE : CKE; + } else { + // save certificate in session + if(client) { + c.session.serverCertificate = certs[0]; + } else { + c.session.clientCertificate = certs[0]; + } + + if(tls.verifyCertificateChain(c, certs)) { + // expect a ServerKeyExchange or ClientKeyExchange message next + c.expect = client ? SKE : CKE; + } + } + + // continue + c.process(); +}; + +/** + * Called when a client receives a ServerKeyExchange record. + * + * When this message will be sent: + * This message will be sent immediately after the server certificate + * message (or the server hello message, if this is an anonymous + * negotiation). + * + * The server key exchange message is sent by the server only when the + * server certificate message (if sent) does not contain enough data to + * allow the client to exchange a premaster secret. + * + * Meaning of this message: + * This message conveys cryptographic information to allow the client to + * communicate the premaster secret: either an RSA public key to encrypt + * the premaster secret with, or a Diffie-Hellman public key with which the + * client can complete a key exchange (with the result being the premaster + * secret.) + * + * enum { + * dhe_dss, dhe_rsa, dh_anon, rsa, dh_dss, dh_rsa + * } KeyExchangeAlgorithm; + * + * struct { + * opaque dh_p<1..2^16-1>; + * opaque dh_g<1..2^16-1>; + * opaque dh_Ys<1..2^16-1>; + * } ServerDHParams; + * + * struct { + * select(KeyExchangeAlgorithm) { + * case dh_anon: + * ServerDHParams params; + * case dhe_dss: + * case dhe_rsa: + * ServerDHParams params; + * digitally-signed struct { + * opaque client_random[32]; + * opaque server_random[32]; + * ServerDHParams params; + * } signed_params; + * case rsa: + * case dh_dss: + * case dh_rsa: + * struct {}; + * }; + * } ServerKeyExchange; + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleServerKeyExchange = function(c, record, length) { + // this implementation only supports RSA, no Diffie-Hellman support + // so any length > 0 is invalid + if(length > 0) { + return c.error(c, { + message: 'Invalid key parameters. Only RSA is supported.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.unsupported_certificate + } + }); + } + + // expect an optional CertificateRequest message next + c.expect = SCR; + + // continue + c.process(); +}; + +/** + * Called when a client receives a ClientKeyExchange record. + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleClientKeyExchange = function(c, record, length) { + // this implementation only supports RSA, no Diffie-Hellman support + // so any length < 48 is invalid + if(length < 48) { + return c.error(c, { + message: 'Invalid key parameters. Only RSA is supported.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.unsupported_certificate + } + }); + } + + var b = record.fragment; + var msg = { + enc_pre_master_secret: readVector(b, 2).getBytes() + }; + + // do rsa decryption + var privateKey = null; + if(c.getPrivateKey) { + try { + privateKey = c.getPrivateKey(c, c.session.serverCertificate); + privateKey = forge.pki.privateKeyFromPem(privateKey); + } catch(ex) { + c.error(c, { + message: 'Could not get private key.', + cause: ex, + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.internal_error + } + }); + } + } + + if(privateKey === null) { + return c.error(c, { + message: 'No private key set.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.internal_error + } + }); + } + + try { + // decrypt 48-byte pre-master secret + var sp = c.session.sp; + sp.pre_master_secret = privateKey.decrypt(msg.enc_pre_master_secret); + + // ensure client hello version matches first 2 bytes + var version = c.session.clientHelloVersion; + if(version.major !== sp.pre_master_secret.charCodeAt(0) || + version.minor !== sp.pre_master_secret.charCodeAt(1)) { + // error, do not send alert (see BLEI attack below) + throw new Error('TLS version rollback attack detected.'); + } + } catch(ex) { + /* Note: Daniel Bleichenbacher [BLEI] can be used to attack a + TLS server which is using PKCS#1 encoded RSA, so instead of + failing here, we generate 48 random bytes and use that as + the pre-master secret. */ + sp.pre_master_secret = forge.random.getBytes(48); + } + + // expect a CertificateVerify message if a Certificate was received that + // does not have fixed Diffie-Hellman params, otherwise expect + // ChangeCipherSpec + c.expect = CCC; + if(c.session.clientCertificate !== null) { + // only RSA support, so expect CertificateVerify + // TODO: support Diffie-Hellman + c.expect = CCV; + } + + // continue + c.process(); +}; + +/** + * Called when a client receives a CertificateRequest record. + * + * When this message will be sent: + * A non-anonymous server can optionally request a certificate from the + * client, if appropriate for the selected cipher suite. This message, if + * sent, will immediately follow the Server Key Exchange message (if it is + * sent; otherwise, the Server Certificate message). + * + * enum { + * rsa_sign(1), dss_sign(2), rsa_fixed_dh(3), dss_fixed_dh(4), + * rsa_ephemeral_dh_RESERVED(5), dss_ephemeral_dh_RESERVED(6), + * fortezza_dms_RESERVED(20), (255) + * } ClientCertificateType; + * + * opaque DistinguishedName<1..2^16-1>; + * + * struct { + * ClientCertificateType certificate_types<1..2^8-1>; + * SignatureAndHashAlgorithm supported_signature_algorithms<2^16-1>; + * DistinguishedName certificate_authorities<0..2^16-1>; + * } CertificateRequest; + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleCertificateRequest = function(c, record, length) { + // minimum of 3 bytes in message + if(length < 3) { + return c.error(c, { + message: 'Invalid CertificateRequest. Message too short.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.illegal_parameter + } + }); + } + + // TODO: TLS 1.2+ has different format including + // SignatureAndHashAlgorithm after cert types + var b = record.fragment; + var msg = { + certificate_types: readVector(b, 1), + certificate_authorities: readVector(b, 2) + }; + + // save certificate request in session + c.session.certificateRequest = msg; + + // expect a ServerHelloDone message next + c.expect = SHD; + + // continue + c.process(); +}; + +/** + * Called when a server receives a CertificateVerify record. + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleCertificateVerify = function(c, record, length) { + if(length < 2) { + return c.error(c, { + message: 'Invalid CertificateVerify. Message too short.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.illegal_parameter + } + }); + } + + // rewind to get full bytes for message so it can be manually + // digested below (special case for CertificateVerify messages because + // they must be digested *after* handling as opposed to all others) + var b = record.fragment; + b.read -= 4; + var msgBytes = b.bytes(); + b.read += 4; + + var msg = { + signature: readVector(b, 2).getBytes() + }; + + // TODO: add support for DSA + + // generate data to verify + var verify = forge.util.createBuffer(); + verify.putBuffer(c.session.md5.digest()); + verify.putBuffer(c.session.sha1.digest()); + verify = verify.getBytes(); + + try { + var cert = c.session.clientCertificate; + /*b = forge.pki.rsa.decrypt( + msg.signature, cert.publicKey, true, verify.length); + if(b !== verify) {*/ + if(!cert.publicKey.verify(verify, msg.signature, 'NONE')) { + throw new Error('CertificateVerify signature does not match.'); + } + + // digest message now that it has been handled + c.session.md5.update(msgBytes); + c.session.sha1.update(msgBytes); + } catch(ex) { + return c.error(c, { + message: 'Bad signature in CertificateVerify.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.handshake_failure + } + }); + } + + // expect ChangeCipherSpec + c.expect = CCC; + + // continue + c.process(); +}; + +/** + * Called when a client receives a ServerHelloDone record. + * + * When this message will be sent: + * The server hello done message is sent by the server to indicate the end + * of the server hello and associated messages. After sending this message + * the server will wait for a client response. + * + * Meaning of this message: + * This message means that the server is done sending messages to support + * the key exchange, and the client can proceed with its phase of the key + * exchange. + * + * Upon receipt of the server hello done message the client should verify + * that the server provided a valid certificate if required and check that + * the server hello parameters are acceptable. + * + * struct {} ServerHelloDone; + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleServerHelloDone = function(c, record, length) { + // len must be 0 bytes + if(length > 0) { + return c.error(c, { + message: 'Invalid ServerHelloDone message. Invalid length.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.record_overflow + } + }); + } + + if(c.serverCertificate === null) { + // no server certificate was provided + var error = { + message: 'No server certificate provided. Not enough security.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.insufficient_security + } + }; + + // call application callback + var depth = 0; + var ret = c.verify(c, error.alert.description, depth, []); + if(ret !== true) { + // check for custom alert info + if(ret || ret === 0) { + // set custom message and alert description + if(typeof ret === 'object' && !forge.util.isArray(ret)) { + if(ret.message) { + error.message = ret.message; + } + if(ret.alert) { + error.alert.description = ret.alert; + } + } else if(typeof ret === 'number') { + // set custom alert description + error.alert.description = ret; + } + } + + // send error + return c.error(c, error); + } + } + + // create client certificate message if requested + if(c.session.certificateRequest !== null) { + record = tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createCertificate(c) + }); + tls.queue(c, record); + } + + // create client key exchange message + record = tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createClientKeyExchange(c) + }); + tls.queue(c, record); + + // expect no messages until the following callback has been called + c.expect = SER; + + // create callback to handle client signature (for client-certs) + var callback = function(c, signature) { + if(c.session.certificateRequest !== null && + c.session.clientCertificate !== null) { + // create certificate verify message + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createCertificateVerify(c, signature) + })); + } + + // create change cipher spec message + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.change_cipher_spec, + data: tls.createChangeCipherSpec() + })); + + // create pending state + c.state.pending = tls.createConnectionState(c); + + // change current write state to pending write state + c.state.current.write = c.state.pending.write; + + // create finished message + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createFinished(c) + })); + + // expect a server ChangeCipherSpec message next + c.expect = SCC; + + // send records + tls.flush(c); + + // continue + c.process(); + }; + + // if there is no certificate request or no client certificate, do + // callback immediately + if(c.session.certificateRequest === null || + c.session.clientCertificate === null) { + return callback(c, null); + } + + // otherwise get the client signature + tls.getClientSignature(c, callback); +}; + +/** + * Called when a ChangeCipherSpec record is received. + * + * @param c the connection. + * @param record the record. + */ +tls.handleChangeCipherSpec = function(c, record) { + if(record.fragment.getByte() !== 0x01) { + return c.error(c, { + message: 'Invalid ChangeCipherSpec message received.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.illegal_parameter + } + }); + } + + // create pending state if: + // 1. Resuming session in client mode OR + // 2. NOT resuming session in server mode + var client = (c.entity === tls.ConnectionEnd.client); + if((c.session.resuming && client) || (!c.session.resuming && !client)) { + c.state.pending = tls.createConnectionState(c); + } + + // change current read state to pending read state + c.state.current.read = c.state.pending.read; + + // clear pending state if: + // 1. NOT resuming session in client mode OR + // 2. resuming a session in server mode + if((!c.session.resuming && client) || (c.session.resuming && !client)) { + c.state.pending = null; + } + + // expect a Finished record next + c.expect = client ? SFI : CFI; + + // continue + c.process(); +}; + +/** + * Called when a Finished record is received. + * + * When this message will be sent: + * A finished message is always sent immediately after a change + * cipher spec message to verify that the key exchange and + * authentication processes were successful. It is essential that a + * change cipher spec message be received between the other + * handshake messages and the Finished message. + * + * Meaning of this message: + * The finished message is the first protected with the just- + * negotiated algorithms, keys, and secrets. Recipients of finished + * messages must verify that the contents are correct. Once a side + * has sent its Finished message and received and validated the + * Finished message from its peer, it may begin to send and receive + * application data over the connection. + * + * struct { + * opaque verify_data[verify_data_length]; + * } Finished; + * + * verify_data + * PRF(master_secret, finished_label, Hash(handshake_messages)) + * [0..verify_data_length-1]; + * + * finished_label + * For Finished messages sent by the client, the string + * "client finished". For Finished messages sent by the server, the + * string "server finished". + * + * verify_data_length depends on the cipher suite. If it is not specified + * by the cipher suite, then it is 12. Versions of TLS < 1.2 always used + * 12 bytes. + * + * @param c the connection. + * @param record the record. + * @param length the length of the handshake message. + */ +tls.handleFinished = function(c, record, length) { + // rewind to get full bytes for message so it can be manually + // digested below (special case for Finished messages because they + // must be digested *after* handling as opposed to all others) + var b = record.fragment; + b.read -= 4; + var msgBytes = b.bytes(); + b.read += 4; + + // message contains only verify_data + var vd = record.fragment.getBytes(); + + // ensure verify data is correct + b = forge.util.createBuffer(); + b.putBuffer(c.session.md5.digest()); + b.putBuffer(c.session.sha1.digest()); + + // set label based on entity type + var client = (c.entity === tls.ConnectionEnd.client); + var label = client ? 'server finished' : 'client finished'; + + // TODO: determine prf function and verify length for TLS 1.2 + var sp = c.session.sp; + var vdl = 12; + var prf = prf_TLS1; + b = prf(sp.master_secret, label, b.getBytes(), vdl); + if(b.getBytes() !== vd) { + return c.error(c, { + message: 'Invalid verify_data in Finished message.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.decrypt_error + } + }); + } + + // digest finished message now that it has been handled + c.session.md5.update(msgBytes); + c.session.sha1.update(msgBytes); + + // resuming session as client or NOT resuming session as server + if((c.session.resuming && client) || (!c.session.resuming && !client)) { + // create change cipher spec message + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.change_cipher_spec, + data: tls.createChangeCipherSpec() + })); + + // change current write state to pending write state, clear pending + c.state.current.write = c.state.pending.write; + c.state.pending = null; + + // create finished message + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createFinished(c) + })); + } + + // expect application data next + c.expect = client ? SAD : CAD; + + // handshake complete + c.handshaking = false; + ++c.handshakes; + + // save access to peer certificate + c.peerCertificate = client ? + c.session.serverCertificate : c.session.clientCertificate; + + // send records + tls.flush(c); + + // now connected + c.isConnected = true; + c.connected(c); + + // continue + c.process(); +}; + +/** + * Called when an Alert record is received. + * + * @param c the connection. + * @param record the record. + */ +tls.handleAlert = function(c, record) { + // read alert + var b = record.fragment; + var alert = { + level: b.getByte(), + description: b.getByte() + }; + + // TODO: consider using a table? + // get appropriate message + var msg; + switch(alert.description) { + case tls.Alert.Description.close_notify: + msg = 'Connection closed.'; + break; + case tls.Alert.Description.unexpected_message: + msg = 'Unexpected message.'; + break; + case tls.Alert.Description.bad_record_mac: + msg = 'Bad record MAC.'; + break; + case tls.Alert.Description.decryption_failed: + msg = 'Decryption failed.'; + break; + case tls.Alert.Description.record_overflow: + msg = 'Record overflow.'; + break; + case tls.Alert.Description.decompression_failure: + msg = 'Decompression failed.'; + break; + case tls.Alert.Description.handshake_failure: + msg = 'Handshake failure.'; + break; + case tls.Alert.Description.bad_certificate: + msg = 'Bad certificate.'; + break; + case tls.Alert.Description.unsupported_certificate: + msg = 'Unsupported certificate.'; + break; + case tls.Alert.Description.certificate_revoked: + msg = 'Certificate revoked.'; + break; + case tls.Alert.Description.certificate_expired: + msg = 'Certificate expired.'; + break; + case tls.Alert.Description.certificate_unknown: + msg = 'Certificate unknown.'; + break; + case tls.Alert.Description.illegal_parameter: + msg = 'Illegal parameter.'; + break; + case tls.Alert.Description.unknown_ca: + msg = 'Unknown certificate authority.'; + break; + case tls.Alert.Description.access_denied: + msg = 'Access denied.'; + break; + case tls.Alert.Description.decode_error: + msg = 'Decode error.'; + break; + case tls.Alert.Description.decrypt_error: + msg = 'Decrypt error.'; + break; + case tls.Alert.Description.export_restriction: + msg = 'Export restriction.'; + break; + case tls.Alert.Description.protocol_version: + msg = 'Unsupported protocol version.'; + break; + case tls.Alert.Description.insufficient_security: + msg = 'Insufficient security.'; + break; + case tls.Alert.Description.internal_error: + msg = 'Internal error.'; + break; + case tls.Alert.Description.user_canceled: + msg = 'User canceled.'; + break; + case tls.Alert.Description.no_renegotiation: + msg = 'Renegotiation not supported.'; + break; + default: + msg = 'Unknown error.'; + break; + } + + // close connection on close_notify, not an error + if(alert.description === tls.Alert.Description.close_notify) { + return c.close(); + } + + // call error handler + c.error(c, { + message: msg, + send: false, + // origin is the opposite end + origin: (c.entity === tls.ConnectionEnd.client) ? 'server' : 'client', + alert: alert + }); + + // continue + c.process(); +}; + +/** + * Called when a Handshake record is received. + * + * @param c the connection. + * @param record the record. + */ +tls.handleHandshake = function(c, record) { + // get the handshake type and message length + var b = record.fragment; + var type = b.getByte(); + var length = b.getInt24(); + + // see if the record fragment doesn't yet contain the full message + if(length > b.length()) { + // cache the record, clear its fragment, and reset the buffer read + // pointer before the type and length were read + c.fragmented = record; + record.fragment = forge.util.createBuffer(); + b.read -= 4; + + // continue + return c.process(); + } + + // full message now available, clear cache, reset read pointer to + // before type and length + c.fragmented = null; + b.read -= 4; + + // save the handshake bytes for digestion after handler is found + // (include type and length of handshake msg) + var bytes = b.bytes(length + 4); + + // restore read pointer + b.read += 4; + + // handle expected message + if(type in hsTable[c.entity][c.expect]) { + // initialize server session + if(c.entity === tls.ConnectionEnd.server && !c.open && !c.fail) { + c.handshaking = true; + c.session = { + version: null, + extensions: { + server_name: { + serverNameList: [] + } + }, + cipherSuite: null, + compressionMethod: null, + serverCertificate: null, + clientCertificate: null, + md5: forge.md.md5.create(), + sha1: forge.md.sha1.create() + }; + } + + /* Update handshake messages digest. Finished and CertificateVerify + messages are not digested here. They can't be digested as part of + the verify_data that they contain. These messages are manually + digested in their handlers. HelloRequest messages are simply never + included in the handshake message digest according to spec. */ + if(type !== tls.HandshakeType.hello_request && + type !== tls.HandshakeType.certificate_verify && + type !== tls.HandshakeType.finished) { + c.session.md5.update(bytes); + c.session.sha1.update(bytes); + } + + // handle specific handshake type record + hsTable[c.entity][c.expect][type](c, record, length); + } else { + // unexpected record + tls.handleUnexpected(c, record); + } +}; + +/** + * Called when an ApplicationData record is received. + * + * @param c the connection. + * @param record the record. + */ +tls.handleApplicationData = function(c, record) { + // buffer data, notify that its ready + c.data.putBuffer(record.fragment); + c.dataReady(c); + + // continue + c.process(); +}; + +/** + * Called when a Heartbeat record is received. + * + * @param c the connection. + * @param record the record. + */ +tls.handleHeartbeat = function(c, record) { + // get the heartbeat type and payload + var b = record.fragment; + var type = b.getByte(); + var length = b.getInt16(); + var payload = b.getBytes(length); + + if(type === tls.HeartbeatMessageType.heartbeat_request) { + // discard request during handshake or if length is too large + if(c.handshaking || length > payload.length) { + // continue + return c.process(); + } + // retransmit payload + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.heartbeat, + data: tls.createHeartbeat( + tls.HeartbeatMessageType.heartbeat_response, payload) + })); + tls.flush(c); + } else if(type === tls.HeartbeatMessageType.heartbeat_response) { + // check payload against expected payload, discard heartbeat if no match + if(payload !== c.expectedHeartbeatPayload) { + // continue + return c.process(); + } + + // notify that a valid heartbeat was received + if(c.heartbeatReceived) { + c.heartbeatReceived(c, forge.util.createBuffer(payload)); + } + } + + // continue + c.process(); +}; + +/** + * The transistional state tables for receiving TLS records. It maps the + * current TLS engine state and a received record to a function to handle the + * record and update the state. + * + * For instance, if the current state is SHE, then the TLS engine is expecting + * a ServerHello record. Once a record is received, the handler function is + * looked up using the state SHE and the record's content type. + * + * The resulting function will either be an error handler or a record handler. + * The function will take whatever action is appropriate and update the state + * for the next record. + * + * The states are all based on possible server record types. Note that the + * client will never specifically expect to receive a HelloRequest or an alert + * from the server so there is no state that reflects this. These messages may + * occur at any time. + * + * There are two tables for mapping states because there is a second tier of + * types for handshake messages. Once a record with a content type of handshake + * is received, the handshake record handler will look up the handshake type in + * the secondary map to get its appropriate handler. + * + * Valid message orders are as follows: + * + * =======================FULL HANDSHAKE====================== + * Client Server + * + * ClientHello --------> + * ServerHello + * Certificate* + * ServerKeyExchange* + * CertificateRequest* + * <-------- ServerHelloDone + * Certificate* + * ClientKeyExchange + * CertificateVerify* + * [ChangeCipherSpec] + * Finished --------> + * [ChangeCipherSpec] + * <-------- Finished + * Application Data <-------> Application Data + * + * =====================SESSION RESUMPTION===================== + * Client Server + * + * ClientHello --------> + * ServerHello + * [ChangeCipherSpec] + * <-------- Finished + * [ChangeCipherSpec] + * Finished --------> + * Application Data <-------> Application Data + */ +// client expect states (indicate which records are expected to be received) +var SHE = 0; // rcv server hello +var SCE = 1; // rcv server certificate +var SKE = 2; // rcv server key exchange +var SCR = 3; // rcv certificate request +var SHD = 4; // rcv server hello done +var SCC = 5; // rcv change cipher spec +var SFI = 6; // rcv finished +var SAD = 7; // rcv application data +var SER = 8; // not expecting any messages at this point + +// server expect states +var CHE = 0; // rcv client hello +var CCE = 1; // rcv client certificate +var CKE = 2; // rcv client key exchange +var CCV = 3; // rcv certificate verify +var CCC = 4; // rcv change cipher spec +var CFI = 5; // rcv finished +var CAD = 6; // rcv application data +var CER = 7; // not expecting any messages at this point + +// map client current expect state and content type to function +var __ = tls.handleUnexpected; +var R0 = tls.handleChangeCipherSpec; +var R1 = tls.handleAlert; +var R2 = tls.handleHandshake; +var R3 = tls.handleApplicationData; +var R4 = tls.handleHeartbeat; +var ctTable = []; +ctTable[tls.ConnectionEnd.client] = [ +// CC,AL,HS,AD,HB +/*SHE*/[__,R1,R2,__,R4], +/*SCE*/[__,R1,R2,__,R4], +/*SKE*/[__,R1,R2,__,R4], +/*SCR*/[__,R1,R2,__,R4], +/*SHD*/[__,R1,R2,__,R4], +/*SCC*/[R0,R1,__,__,R4], +/*SFI*/[__,R1,R2,__,R4], +/*SAD*/[__,R1,R2,R3,R4], +/*SER*/[__,R1,R2,__,R4] +]; + +// map server current expect state and content type to function +ctTable[tls.ConnectionEnd.server] = [ +// CC,AL,HS,AD +/*CHE*/[__,R1,R2,__,R4], +/*CCE*/[__,R1,R2,__,R4], +/*CKE*/[__,R1,R2,__,R4], +/*CCV*/[__,R1,R2,__,R4], +/*CCC*/[R0,R1,__,__,R4], +/*CFI*/[__,R1,R2,__,R4], +/*CAD*/[__,R1,R2,R3,R4], +/*CER*/[__,R1,R2,__,R4] +]; + +// map client current expect state and handshake type to function +var H0 = tls.handleHelloRequest; +var H1 = tls.handleServerHello; +var H2 = tls.handleCertificate; +var H3 = tls.handleServerKeyExchange; +var H4 = tls.handleCertificateRequest; +var H5 = tls.handleServerHelloDone; +var H6 = tls.handleFinished; +var hsTable = []; +hsTable[tls.ConnectionEnd.client] = [ +// HR,01,SH,03,04,05,06,07,08,09,10,SC,SK,CR,HD,15,CK,17,18,19,FI +/*SHE*/[__,__,H1,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__], +/*SCE*/[H0,__,__,__,__,__,__,__,__,__,__,H2,H3,H4,H5,__,__,__,__,__,__], +/*SKE*/[H0,__,__,__,__,__,__,__,__,__,__,__,H3,H4,H5,__,__,__,__,__,__], +/*SCR*/[H0,__,__,__,__,__,__,__,__,__,__,__,__,H4,H5,__,__,__,__,__,__], +/*SHD*/[H0,__,__,__,__,__,__,__,__,__,__,__,__,__,H5,__,__,__,__,__,__], +/*SCC*/[H0,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__], +/*SFI*/[H0,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,H6], +/*SAD*/[H0,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__], +/*SER*/[H0,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__] +]; + +// map server current expect state and handshake type to function +// Note: CAD[CH] does not map to FB because renegotation is prohibited +var H7 = tls.handleClientHello; +var H8 = tls.handleClientKeyExchange; +var H9 = tls.handleCertificateVerify; +hsTable[tls.ConnectionEnd.server] = [ +// 01,CH,02,03,04,05,06,07,08,09,10,CC,12,13,14,CV,CK,17,18,19,FI +/*CHE*/[__,H7,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__], +/*CCE*/[__,__,__,__,__,__,__,__,__,__,__,H2,__,__,__,__,__,__,__,__,__], +/*CKE*/[__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,H8,__,__,__,__], +/*CCV*/[__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,H9,__,__,__,__,__], +/*CCC*/[__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__], +/*CFI*/[__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,H6], +/*CAD*/[__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__], +/*CER*/[__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__,__] +]; + +/** + * Generates the master_secret and keys using the given security parameters. + * + * The security parameters for a TLS connection state are defined as such: + * + * struct { + * ConnectionEnd entity; + * PRFAlgorithm prf_algorithm; + * BulkCipherAlgorithm bulk_cipher_algorithm; + * CipherType cipher_type; + * uint8 enc_key_length; + * uint8 block_length; + * uint8 fixed_iv_length; + * uint8 record_iv_length; + * MACAlgorithm mac_algorithm; + * uint8 mac_length; + * uint8 mac_key_length; + * CompressionMethod compression_algorithm; + * opaque master_secret[48]; + * opaque client_random[32]; + * opaque server_random[32]; + * } SecurityParameters; + * + * Note that this definition is from TLS 1.2. In TLS 1.0 some of these + * parameters are ignored because, for instance, the PRFAlgorithm is a + * builtin-fixed algorithm combining iterations of MD5 and SHA-1 in TLS 1.0. + * + * The Record Protocol requires an algorithm to generate keys required by the + * current connection state. + * + * The master secret is expanded into a sequence of secure bytes, which is then + * split to a client write MAC key, a server write MAC key, a client write + * encryption key, and a server write encryption key. In TLS 1.0 a client write + * IV and server write IV are also generated. Each of these is generated from + * the byte sequence in that order. Unused values are empty. In TLS 1.2, some + * AEAD ciphers may additionally require a client write IV and a server write + * IV (see Section 6.2.3.3). + * + * When keys, MAC keys, and IVs are generated, the master secret is used as an + * entropy source. + * + * To generate the key material, compute: + * + * master_secret = PRF(pre_master_secret, "master secret", + * ClientHello.random + ServerHello.random) + * + * key_block = PRF(SecurityParameters.master_secret, + * "key expansion", + * SecurityParameters.server_random + + * SecurityParameters.client_random); + * + * until enough output has been generated. Then, the key_block is + * partitioned as follows: + * + * client_write_MAC_key[SecurityParameters.mac_key_length] + * server_write_MAC_key[SecurityParameters.mac_key_length] + * client_write_key[SecurityParameters.enc_key_length] + * server_write_key[SecurityParameters.enc_key_length] + * client_write_IV[SecurityParameters.fixed_iv_length] + * server_write_IV[SecurityParameters.fixed_iv_length] + * + * In TLS 1.2, the client_write_IV and server_write_IV are only generated for + * implicit nonce techniques as described in Section 3.2.1 of [AEAD]. This + * implementation uses TLS 1.0 so IVs are generated. + * + * Implementation note: The currently defined cipher suite which requires the + * most material is AES_256_CBC_SHA256. It requires 2 x 32 byte keys and 2 x 32 + * byte MAC keys, for a total 128 bytes of key material. In TLS 1.0 it also + * requires 2 x 16 byte IVs, so it actually takes 160 bytes of key material. + * + * @param c the connection. + * @param sp the security parameters to use. + * + * @return the security keys. + */ +tls.generateKeys = function(c, sp) { + // TLS_RSA_WITH_AES_128_CBC_SHA (required to be compliant with TLS 1.2) & + // TLS_RSA_WITH_AES_256_CBC_SHA are the only cipher suites implemented + // at present + + // TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA is required to be compliant with + // TLS 1.0 but we don't care right now because AES is better and we have + // an implementation for it + + // TODO: TLS 1.2 implementation + /* + // determine the PRF + var prf; + switch(sp.prf_algorithm) { + case tls.PRFAlgorithm.tls_prf_sha256: + prf = prf_sha256; + break; + default: + // should never happen + throw new Error('Invalid PRF'); + } + */ + + // TLS 1.0/1.1 implementation + var prf = prf_TLS1; + + // concatenate server and client random + var random = sp.client_random + sp.server_random; + + // only create master secret if session is new + if(!c.session.resuming) { + // create master secret, clean up pre-master secret + sp.master_secret = prf( + sp.pre_master_secret, 'master secret', random, 48).bytes(); + sp.pre_master_secret = null; + } + + // generate the amount of key material needed + random = sp.server_random + sp.client_random; + var length = 2 * sp.mac_key_length + 2 * sp.enc_key_length; + + // include IV for TLS/1.0 + var tls10 = (c.version.major === tls.Versions.TLS_1_0.major && + c.version.minor === tls.Versions.TLS_1_0.minor); + if(tls10) { + length += 2 * sp.fixed_iv_length; + } + var km = prf(sp.master_secret, 'key expansion', random, length); + + // split the key material into the MAC and encryption keys + var rval = { + client_write_MAC_key: km.getBytes(sp.mac_key_length), + server_write_MAC_key: km.getBytes(sp.mac_key_length), + client_write_key: km.getBytes(sp.enc_key_length), + server_write_key: km.getBytes(sp.enc_key_length) + }; + + // include TLS 1.0 IVs + if(tls10) { + rval.client_write_IV = km.getBytes(sp.fixed_iv_length); + rval.server_write_IV = km.getBytes(sp.fixed_iv_length); + } + + return rval; +}; + +/** + * Creates a new initialized TLS connection state. A connection state has + * a read mode and a write mode. + * + * compression state: + * The current state of the compression algorithm. + * + * cipher state: + * The current state of the encryption algorithm. This will consist of the + * scheduled key for that connection. For stream ciphers, this will also + * contain whatever state information is necessary to allow the stream to + * continue to encrypt or decrypt data. + * + * MAC key: + * The MAC key for the connection. + * + * sequence number: + * Each connection state contains a sequence number, which is maintained + * separately for read and write states. The sequence number MUST be set to + * zero whenever a connection state is made the active state. Sequence + * numbers are of type uint64 and may not exceed 2^64-1. Sequence numbers do + * not wrap. If a TLS implementation would need to wrap a sequence number, + * it must renegotiate instead. A sequence number is incremented after each + * record: specifically, the first record transmitted under a particular + * connection state MUST use sequence number 0. + * + * @param c the connection. + * + * @return the new initialized TLS connection state. + */ +tls.createConnectionState = function(c) { + var client = (c.entity === tls.ConnectionEnd.client); + + var createMode = function() { + var mode = { + // two 32-bit numbers, first is most significant + sequenceNumber: [0, 0], + macKey: null, + macLength: 0, + macFunction: null, + cipherState: null, + cipherFunction: function(record) {return true;}, + compressionState: null, + compressFunction: function(record) {return true;}, + updateSequenceNumber: function() { + if(mode.sequenceNumber[1] === 0xFFFFFFFF) { + mode.sequenceNumber[1] = 0; + ++mode.sequenceNumber[0]; + } else { + ++mode.sequenceNumber[1]; + } + } + }; + return mode; + }; + var state = { + read: createMode(), + write: createMode() + }; + + // update function in read mode will decrypt then decompress a record + state.read.update = function(c, record) { + if(!state.read.cipherFunction(record, state.read)) { + c.error(c, { + message: 'Could not decrypt record or bad MAC.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + // doesn't matter if decryption failed or MAC was + // invalid, return the same error so as not to reveal + // which one occurred + description: tls.Alert.Description.bad_record_mac + } + }); + } else if(!state.read.compressFunction(c, record, state.read)) { + c.error(c, { + message: 'Could not decompress record.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.decompression_failure + } + }); + } + return !c.fail; + }; + + // update function in write mode will compress then encrypt a record + state.write.update = function(c, record) { + if(!state.write.compressFunction(c, record, state.write)) { + // error, but do not send alert since it would require + // compression as well + c.error(c, { + message: 'Could not compress record.', + send: false, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.internal_error + } + }); + } else if(!state.write.cipherFunction(record, state.write)) { + // error, but do not send alert since it would require + // encryption as well + c.error(c, { + message: 'Could not encrypt record.', + send: false, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.internal_error + } + }); + } + return !c.fail; + }; + + // handle security parameters + if(c.session) { + var sp = c.session.sp; + c.session.cipherSuite.initSecurityParameters(sp); + + // generate keys + sp.keys = tls.generateKeys(c, sp); + state.read.macKey = client ? + sp.keys.server_write_MAC_key : sp.keys.client_write_MAC_key; + state.write.macKey = client ? + sp.keys.client_write_MAC_key : sp.keys.server_write_MAC_key; + + // cipher suite setup + c.session.cipherSuite.initConnectionState(state, c, sp); + + // compression setup + switch(sp.compression_algorithm) { + case tls.CompressionMethod.none: + break; + case tls.CompressionMethod.deflate: + state.read.compressFunction = inflate; + state.write.compressFunction = deflate; + break; + default: + throw new Error('Unsupported compression algorithm.'); + } + } + + return state; +}; + +/** + * Creates a Random structure. + * + * struct { + * uint32 gmt_unix_time; + * opaque random_bytes[28]; + * } Random; + * + * gmt_unix_time: + * The current time and date in standard UNIX 32-bit format (seconds since + * the midnight starting Jan 1, 1970, UTC, ignoring leap seconds) according + * to the sender's internal clock. Clocks are not required to be set + * correctly by the basic TLS protocol; higher-level or application + * protocols may define additional requirements. Note that, for historical + * reasons, the data element is named using GMT, the predecessor of the + * current worldwide time base, UTC. + * random_bytes: + * 28 bytes generated by a secure random number generator. + * + * @return the Random structure as a byte array. + */ +tls.createRandom = function() { + // get UTC milliseconds + var d = new Date(); + var utc = +d + d.getTimezoneOffset() * 60000; + var rval = forge.util.createBuffer(); + rval.putInt32(utc); + rval.putBytes(forge.random.getBytes(28)); + return rval; +}; + +/** + * Creates a TLS record with the given type and data. + * + * @param c the connection. + * @param options: + * type: the record type. + * data: the plain text data in a byte buffer. + * + * @return the created record. + */ +tls.createRecord = function(c, options) { + if(!options.data) { + return null; + } + var record = { + type: options.type, + version: { + major: c.version.major, + minor: c.version.minor + }, + length: options.data.length(), + fragment: options.data + }; + return record; +}; + +/** + * Creates a TLS alert record. + * + * @param c the connection. + * @param alert: + * level: the TLS alert level. + * description: the TLS alert description. + * + * @return the created alert record. + */ +tls.createAlert = function(c, alert) { + var b = forge.util.createBuffer(); + b.putByte(alert.level); + b.putByte(alert.description); + return tls.createRecord(c, { + type: tls.ContentType.alert, + data: b + }); +}; + +/* The structure of a TLS handshake message. + * + * struct { + * HandshakeType msg_type; // handshake type + * uint24 length; // bytes in message + * select(HandshakeType) { + * case hello_request: HelloRequest; + * case client_hello: ClientHello; + * case server_hello: ServerHello; + * case certificate: Certificate; + * case server_key_exchange: ServerKeyExchange; + * case certificate_request: CertificateRequest; + * case server_hello_done: ServerHelloDone; + * case certificate_verify: CertificateVerify; + * case client_key_exchange: ClientKeyExchange; + * case finished: Finished; + * } body; + * } Handshake; + */ + +/** + * Creates a ClientHello message. + * + * opaque SessionID<0..32>; + * enum { null(0), deflate(1), (255) } CompressionMethod; + * uint8 CipherSuite[2]; + * + * struct { + * ProtocolVersion client_version; + * Random random; + * SessionID session_id; + * CipherSuite cipher_suites<2..2^16-2>; + * CompressionMethod compression_methods<1..2^8-1>; + * select(extensions_present) { + * case false: + * struct {}; + * case true: + * Extension extensions<0..2^16-1>; + * }; + * } ClientHello; + * + * The extension format for extended client hellos and server hellos is: + * + * struct { + * ExtensionType extension_type; + * opaque extension_data<0..2^16-1>; + * } Extension; + * + * Here: + * + * - "extension_type" identifies the particular extension type. + * - "extension_data" contains information specific to the particular + * extension type. + * + * The extension types defined in this document are: + * + * enum { + * server_name(0), max_fragment_length(1), + * client_certificate_url(2), trusted_ca_keys(3), + * truncated_hmac(4), status_request(5), (65535) + * } ExtensionType; + * + * @param c the connection. + * + * @return the ClientHello byte buffer. + */ +tls.createClientHello = function(c) { + // save hello version + c.session.clientHelloVersion = { + major: c.version.major, + minor: c.version.minor + }; + + // create supported cipher suites + var cipherSuites = forge.util.createBuffer(); + for(var i = 0; i < c.cipherSuites.length; ++i) { + var cs = c.cipherSuites[i]; + cipherSuites.putByte(cs.id[0]); + cipherSuites.putByte(cs.id[1]); + } + var cSuites = cipherSuites.length(); + + // create supported compression methods, null always supported, but + // also support deflate if connection has inflate and deflate methods + var compressionMethods = forge.util.createBuffer(); + compressionMethods.putByte(tls.CompressionMethod.none); + // FIXME: deflate support disabled until issues with raw deflate data + // without zlib headers are resolved + /* + if(c.inflate !== null && c.deflate !== null) { + compressionMethods.putByte(tls.CompressionMethod.deflate); + } + */ + var cMethods = compressionMethods.length(); + + // create TLS SNI (server name indication) extension if virtual host + // has been specified, see RFC 3546 + var extensions = forge.util.createBuffer(); + if(c.virtualHost) { + // create extension struct + var ext = forge.util.createBuffer(); + ext.putByte(0x00); // type server_name (ExtensionType is 2 bytes) + ext.putByte(0x00); + + /* In order to provide the server name, clients MAY include an + * extension of type "server_name" in the (extended) client hello. + * The "extension_data" field of this extension SHALL contain + * "ServerNameList" where: + * + * struct { + * NameType name_type; + * select(name_type) { + * case host_name: HostName; + * } name; + * } ServerName; + * + * enum { + * host_name(0), (255) + * } NameType; + * + * opaque HostName<1..2^16-1>; + * + * struct { + * ServerName server_name_list<1..2^16-1> + * } ServerNameList; + */ + var serverName = forge.util.createBuffer(); + serverName.putByte(0x00); // type host_name + writeVector(serverName, 2, forge.util.createBuffer(c.virtualHost)); + + // ServerNameList is in extension_data + var snList = forge.util.createBuffer(); + writeVector(snList, 2, serverName); + writeVector(ext, 2, snList); + extensions.putBuffer(ext); + } + var extLength = extensions.length(); + if(extLength > 0) { + // add extension vector length + extLength += 2; + } + + // determine length of the handshake message + // cipher suites and compression methods size will need to be + // updated if more get added to the list + var sessionId = c.session.id; + var length = + sessionId.length + 1 + // session ID vector + 2 + // version (major + minor) + 4 + 28 + // random time and random bytes + 2 + cSuites + // cipher suites vector + 1 + cMethods + // compression methods vector + extLength; // extensions vector + + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(tls.HandshakeType.client_hello); + rval.putInt24(length); // handshake length + rval.putByte(c.version.major); // major version + rval.putByte(c.version.minor); // minor version + rval.putBytes(c.session.sp.client_random); // random time + bytes + writeVector(rval, 1, forge.util.createBuffer(sessionId)); + writeVector(rval, 2, cipherSuites); + writeVector(rval, 1, compressionMethods); + if(extLength > 0) { + writeVector(rval, 2, extensions); + } + return rval; +}; + +/** + * Creates a ServerHello message. + * + * @param c the connection. + * + * @return the ServerHello byte buffer. + */ +tls.createServerHello = function(c) { + // determine length of the handshake message + var sessionId = c.session.id; + var length = + sessionId.length + 1 + // session ID vector + 2 + // version (major + minor) + 4 + 28 + // random time and random bytes + 2 + // chosen cipher suite + 1; // chosen compression method + + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(tls.HandshakeType.server_hello); + rval.putInt24(length); // handshake length + rval.putByte(c.version.major); // major version + rval.putByte(c.version.minor); // minor version + rval.putBytes(c.session.sp.server_random); // random time + bytes + writeVector(rval, 1, forge.util.createBuffer(sessionId)); + rval.putByte(c.session.cipherSuite.id[0]); + rval.putByte(c.session.cipherSuite.id[1]); + rval.putByte(c.session.compressionMethod); + return rval; +}; + +/** + * Creates a Certificate message. + * + * When this message will be sent: + * This is the first message the client can send after receiving a server + * hello done message and the first message the server can send after + * sending a ServerHello. This client message is only sent if the server + * requests a certificate. If no suitable certificate is available, the + * client should send a certificate message containing no certificates. If + * client authentication is required by the server for the handshake to + * continue, it may respond with a fatal handshake failure alert. + * + * opaque ASN.1Cert<1..2^24-1>; + * + * struct { + * ASN.1Cert certificate_list<0..2^24-1>; + * } Certificate; + * + * @param c the connection. + * + * @return the Certificate byte buffer. + */ +tls.createCertificate = function(c) { + // TODO: check certificate request to ensure types are supported + + // get a certificate (a certificate as a PEM string) + var client = (c.entity === tls.ConnectionEnd.client); + var cert = null; + if(c.getCertificate) { + var hint; + if(client) { + hint = c.session.certificateRequest; + } else { + hint = c.session.extensions.server_name.serverNameList; + } + cert = c.getCertificate(c, hint); + } + + // buffer to hold certificate list + var certList = forge.util.createBuffer(); + if(cert !== null) { + try { + // normalize cert to a chain of certificates + if(!forge.util.isArray(cert)) { + cert = [cert]; + } + var asn1 = null; + for(var i = 0; i < cert.length; ++i) { + var msg = forge.pem.decode(cert[i])[0]; + if(msg.type !== 'CERTIFICATE' && + msg.type !== 'X509 CERTIFICATE' && + msg.type !== 'TRUSTED CERTIFICATE') { + var error = new Error('Could not convert certificate from PEM; PEM ' + + 'header type is not "CERTIFICATE", "X509 CERTIFICATE", or ' + + '"TRUSTED CERTIFICATE".'); + error.headerType = msg.type; + throw error; + } + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + throw new Error('Could not convert certificate from PEM; PEM is encrypted.'); + } + + var der = forge.util.createBuffer(msg.body); + if(asn1 === null) { + asn1 = forge.asn1.fromDer(der.bytes(), false); + } + + // certificate entry is itself a vector with 3 length bytes + var certBuffer = forge.util.createBuffer(); + writeVector(certBuffer, 3, der); + + // add cert vector to cert list vector + certList.putBuffer(certBuffer); + } + + // save certificate + cert = forge.pki.certificateFromAsn1(asn1); + if(client) { + c.session.clientCertificate = cert; + } else { + c.session.serverCertificate = cert; + } + } catch(ex) { + return c.error(c, { + message: 'Could not send certificate list.', + cause: ex, + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.bad_certificate + } + }); + } + } + + // determine length of the handshake message + var length = 3 + certList.length(); // cert list vector + + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(tls.HandshakeType.certificate); + rval.putInt24(length); + writeVector(rval, 3, certList); + return rval; +}; + +/** + * Creates a ClientKeyExchange message. + * + * When this message will be sent: + * This message is always sent by the client. It will immediately follow the + * client certificate message, if it is sent. Otherwise it will be the first + * message sent by the client after it receives the server hello done + * message. + * + * Meaning of this message: + * With this message, the premaster secret is set, either though direct + * transmission of the RSA-encrypted secret, or by the transmission of + * Diffie-Hellman parameters which will allow each side to agree upon the + * same premaster secret. When the key exchange method is DH_RSA or DH_DSS, + * client certification has been requested, and the client was able to + * respond with a certificate which contained a Diffie-Hellman public key + * whose parameters (group and generator) matched those specified by the + * server in its certificate, this message will not contain any data. + * + * Meaning of this message: + * If RSA is being used for key agreement and authentication, the client + * generates a 48-byte premaster secret, encrypts it using the public key + * from the server's certificate or the temporary RSA key provided in a + * server key exchange message, and sends the result in an encrypted + * premaster secret message. This structure is a variant of the client + * key exchange message, not a message in itself. + * + * struct { + * select(KeyExchangeAlgorithm) { + * case rsa: EncryptedPreMasterSecret; + * case diffie_hellman: ClientDiffieHellmanPublic; + * } exchange_keys; + * } ClientKeyExchange; + * + * struct { + * ProtocolVersion client_version; + * opaque random[46]; + * } PreMasterSecret; + * + * struct { + * public-key-encrypted PreMasterSecret pre_master_secret; + * } EncryptedPreMasterSecret; + * + * A public-key-encrypted element is encoded as a vector <0..2^16-1>. + * + * @param c the connection. + * + * @return the ClientKeyExchange byte buffer. + */ +tls.createClientKeyExchange = function(c) { + // create buffer to encrypt + var b = forge.util.createBuffer(); + + // add highest client-supported protocol to help server avoid version + // rollback attacks + b.putByte(c.session.clientHelloVersion.major); + b.putByte(c.session.clientHelloVersion.minor); + + // generate and add 46 random bytes + b.putBytes(forge.random.getBytes(46)); + + // save pre-master secret + var sp = c.session.sp; + sp.pre_master_secret = b.getBytes(); + + // RSA-encrypt the pre-master secret + var key = c.session.serverCertificate.publicKey; + b = key.encrypt(sp.pre_master_secret); + + /* Note: The encrypted pre-master secret will be stored in a + public-key-encrypted opaque vector that has the length prefixed using + 2 bytes, so include those 2 bytes in the handshake message length. This + is done as a minor optimization instead of calling writeVector(). */ + + // determine length of the handshake message + var length = b.length + 2; + + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(tls.HandshakeType.client_key_exchange); + rval.putInt24(length); + // add vector length bytes + rval.putInt16(b.length); + rval.putBytes(b); + return rval; +}; + +/** + * Creates a ServerKeyExchange message. + * + * @param c the connection. + * + * @return the ServerKeyExchange byte buffer. + */ +tls.createServerKeyExchange = function(c) { + // this implementation only supports RSA, no Diffie-Hellman support, + // so this record is empty + + // determine length of the handshake message + var length = 0; + + // build record fragment + var rval = forge.util.createBuffer(); + if(length > 0) { + rval.putByte(tls.HandshakeType.server_key_exchange); + rval.putInt24(length); + } + return rval; +}; + +/** + * Gets the signed data used to verify a client-side certificate. See + * tls.createCertificateVerify() for details. + * + * @param c the connection. + * @param callback the callback to call once the signed data is ready. + */ +tls.getClientSignature = function(c, callback) { + // generate data to RSA encrypt + var b = forge.util.createBuffer(); + b.putBuffer(c.session.md5.digest()); + b.putBuffer(c.session.sha1.digest()); + b = b.getBytes(); + + // create default signing function as necessary + c.getSignature = c.getSignature || function(c, b, callback) { + // do rsa encryption, call callback + var privateKey = null; + if(c.getPrivateKey) { + try { + privateKey = c.getPrivateKey(c, c.session.clientCertificate); + privateKey = forge.pki.privateKeyFromPem(privateKey); + } catch(ex) { + c.error(c, { + message: 'Could not get private key.', + cause: ex, + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.internal_error + } + }); + } + } + if(privateKey === null) { + c.error(c, { + message: 'No private key set.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.internal_error + } + }); + } else { + b = privateKey.sign(b, null); + } + callback(c, b); + }; + + // get client signature + c.getSignature(c, b, callback); +}; + +/** + * Creates a CertificateVerify message. + * + * Meaning of this message: + * This structure conveys the client's Diffie-Hellman public value + * (Yc) if it was not already included in the client's certificate. + * The encoding used for Yc is determined by the enumerated + * PublicValueEncoding. This structure is a variant of the client + * key exchange message, not a message in itself. + * + * When this message will be sent: + * This message is used to provide explicit verification of a client + * certificate. This message is only sent following a client + * certificate that has signing capability (i.e. all certificates + * except those containing fixed Diffie-Hellman parameters). When + * sent, it will immediately follow the client key exchange message. + * + * struct { + * Signature signature; + * } CertificateVerify; + * + * CertificateVerify.signature.md5_hash + * MD5(handshake_messages); + * + * Certificate.signature.sha_hash + * SHA(handshake_messages); + * + * Here handshake_messages refers to all handshake messages sent or + * received starting at client hello up to but not including this + * message, including the type and length fields of the handshake + * messages. + * + * select(SignatureAlgorithm) { + * case anonymous: struct { }; + * case rsa: + * digitally-signed struct { + * opaque md5_hash[16]; + * opaque sha_hash[20]; + * }; + * case dsa: + * digitally-signed struct { + * opaque sha_hash[20]; + * }; + * } Signature; + * + * In digital signing, one-way hash functions are used as input for a + * signing algorithm. A digitally-signed element is encoded as an opaque + * vector <0..2^16-1>, where the length is specified by the signing + * algorithm and key. + * + * In RSA signing, a 36-byte structure of two hashes (one SHA and one + * MD5) is signed (encrypted with the private key). It is encoded with + * PKCS #1 block type 0 or type 1 as described in [PKCS1]. + * + * In DSS, the 20 bytes of the SHA hash are run directly through the + * Digital Signing Algorithm with no additional hashing. + * + * @param c the connection. + * @param signature the signature to include in the message. + * + * @return the CertificateVerify byte buffer. + */ +tls.createCertificateVerify = function(c, signature) { + /* Note: The signature will be stored in a "digitally-signed" opaque + vector that has the length prefixed using 2 bytes, so include those + 2 bytes in the handshake message length. This is done as a minor + optimization instead of calling writeVector(). */ + + // determine length of the handshake message + var length = signature.length + 2; + + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(tls.HandshakeType.certificate_verify); + rval.putInt24(length); + // add vector length bytes + rval.putInt16(signature.length); + rval.putBytes(signature); + return rval; +}; + +/** + * Creates a CertificateRequest message. + * + * @param c the connection. + * + * @return the CertificateRequest byte buffer. + */ +tls.createCertificateRequest = function(c) { + // TODO: support other certificate types + var certTypes = forge.util.createBuffer(); + + // common RSA certificate type + certTypes.putByte(0x01); + + // add distinguished names from CA store + var cAs = forge.util.createBuffer(); + for(var key in c.caStore.certs) { + var cert = c.caStore.certs[key]; + var dn = forge.pki.distinguishedNameToAsn1(cert.subject); + var byteBuffer = forge.asn1.toDer(dn); + cAs.putInt16(byteBuffer.length()); + cAs.putBuffer(byteBuffer); + } + + // TODO: TLS 1.2+ has a different format + + // determine length of the handshake message + var length = + 1 + certTypes.length() + + 2 + cAs.length(); + + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(tls.HandshakeType.certificate_request); + rval.putInt24(length); + writeVector(rval, 1, certTypes); + writeVector(rval, 2, cAs); + return rval; +}; + +/** + * Creates a ServerHelloDone message. + * + * @param c the connection. + * + * @return the ServerHelloDone byte buffer. + */ +tls.createServerHelloDone = function(c) { + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(tls.HandshakeType.server_hello_done); + rval.putInt24(0); + return rval; +}; + +/** + * Creates a ChangeCipherSpec message. + * + * The change cipher spec protocol exists to signal transitions in + * ciphering strategies. The protocol consists of a single message, + * which is encrypted and compressed under the current (not the pending) + * connection state. The message consists of a single byte of value 1. + * + * struct { + * enum { change_cipher_spec(1), (255) } type; + * } ChangeCipherSpec; + * + * @return the ChangeCipherSpec byte buffer. + */ +tls.createChangeCipherSpec = function() { + var rval = forge.util.createBuffer(); + rval.putByte(0x01); + return rval; +}; + +/** + * Creates a Finished message. + * + * struct { + * opaque verify_data[12]; + * } Finished; + * + * verify_data + * PRF(master_secret, finished_label, MD5(handshake_messages) + + * SHA-1(handshake_messages)) [0..11]; + * + * finished_label + * For Finished messages sent by the client, the string "client + * finished". For Finished messages sent by the server, the + * string "server finished". + * + * handshake_messages + * All of the data from all handshake messages up to but not + * including this message. This is only data visible at the + * handshake layer and does not include record layer headers. + * This is the concatenation of all the Handshake structures as + * defined in 7.4 exchanged thus far. + * + * @param c the connection. + * + * @return the Finished byte buffer. + */ +tls.createFinished = function(c) { + // generate verify_data + var b = forge.util.createBuffer(); + b.putBuffer(c.session.md5.digest()); + b.putBuffer(c.session.sha1.digest()); + + // TODO: determine prf function and verify length for TLS 1.2 + var client = (c.entity === tls.ConnectionEnd.client); + var sp = c.session.sp; + var vdl = 12; + var prf = prf_TLS1; + var label = client ? 'client finished' : 'server finished'; + b = prf(sp.master_secret, label, b.getBytes(), vdl); + + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(tls.HandshakeType.finished); + rval.putInt24(b.length()); + rval.putBuffer(b); + return rval; +}; + +/** + * Creates a HeartbeatMessage (See RFC 6520). + * + * struct { + * HeartbeatMessageType type; + * uint16 payload_length; + * opaque payload[HeartbeatMessage.payload_length]; + * opaque padding[padding_length]; + * } HeartbeatMessage; + * + * The total length of a HeartbeatMessage MUST NOT exceed 2^14 or + * max_fragment_length when negotiated as defined in [RFC6066]. + * + * type: The message type, either heartbeat_request or heartbeat_response. + * + * payload_length: The length of the payload. + * + * payload: The payload consists of arbitrary content. + * + * padding: The padding is random content that MUST be ignored by the + * receiver. The length of a HeartbeatMessage is TLSPlaintext.length + * for TLS and DTLSPlaintext.length for DTLS. Furthermore, the + * length of the type field is 1 byte, and the length of the + * payload_length is 2. Therefore, the padding_length is + * TLSPlaintext.length - payload_length - 3 for TLS and + * DTLSPlaintext.length - payload_length - 3 for DTLS. The + * padding_length MUST be at least 16. + * + * The sender of a HeartbeatMessage MUST use a random padding of at + * least 16 bytes. The padding of a received HeartbeatMessage message + * MUST be ignored. + * + * If the payload_length of a received HeartbeatMessage is too large, + * the received HeartbeatMessage MUST be discarded silently. + * + * @param c the connection. + * @param type the tls.HeartbeatMessageType. + * @param payload the heartbeat data to send as the payload. + * @param [payloadLength] the payload length to use, defaults to the + * actual payload length. + * + * @return the HeartbeatRequest byte buffer. + */ +tls.createHeartbeat = function(type, payload, payloadLength) { + if(typeof payloadLength === 'undefined') { + payloadLength = payload.length; + } + // build record fragment + var rval = forge.util.createBuffer(); + rval.putByte(type); // heartbeat message type + rval.putInt16(payloadLength); // payload length + rval.putBytes(payload); // payload + // padding + var plaintextLength = rval.length(); + var paddingLength = Math.max(16, plaintextLength - payloadLength - 3); + rval.putBytes(forge.random.getBytes(paddingLength)); + return rval; +}; + +/** + * Fragments, compresses, encrypts, and queues a record for delivery. + * + * @param c the connection. + * @param record the record to queue. + */ +tls.queue = function(c, record) { + // error during record creation + if(!record) { + return; + } + + if(record.fragment.length() === 0) { + if(record.type === tls.ContentType.handshake || + record.type === tls.ContentType.alert || + record.type === tls.ContentType.change_cipher_spec) { + // Empty handshake, alert of change cipher spec messages are not allowed per the TLS specification and should not be sent. + return; + } + } + + // if the record is a handshake record, update handshake hashes + if(record.type === tls.ContentType.handshake) { + var bytes = record.fragment.bytes(); + c.session.md5.update(bytes); + c.session.sha1.update(bytes); + bytes = null; + } + + // handle record fragmentation + var records; + if(record.fragment.length() <= tls.MaxFragment) { + records = [record]; + } else { + // fragment data as long as it is too long + records = []; + var data = record.fragment.bytes(); + while(data.length > tls.MaxFragment) { + records.push(tls.createRecord(c, { + type: record.type, + data: forge.util.createBuffer(data.slice(0, tls.MaxFragment)) + })); + data = data.slice(tls.MaxFragment); + } + // add last record + if(data.length > 0) { + records.push(tls.createRecord(c, { + type: record.type, + data: forge.util.createBuffer(data) + })); + } + } + + // compress and encrypt all fragmented records + for(var i = 0; i < records.length && !c.fail; ++i) { + // update the record using current write state + var rec = records[i]; + var s = c.state.current.write; + if(s.update(c, rec)) { + // store record + c.records.push(rec); + } + } +}; + +/** + * Flushes all queued records to the output buffer and calls the + * tlsDataReady() handler on the given connection. + * + * @param c the connection. + * + * @return true on success, false on failure. + */ +tls.flush = function(c) { + for(var i = 0; i < c.records.length; ++i) { + var record = c.records[i]; + + // add record header and fragment + c.tlsData.putByte(record.type); + c.tlsData.putByte(record.version.major); + c.tlsData.putByte(record.version.minor); + c.tlsData.putInt16(record.fragment.length()); + c.tlsData.putBuffer(c.records[i].fragment); + } + c.records = []; + return c.tlsDataReady(c); +}; + +/** + * Maps a pki.certificateError to a tls.Alert.Description. + * + * @param error the error to map. + * + * @return the alert description. + */ +var _certErrorToAlertDesc = function(error) { + switch(error) { + case true: + return true; + case forge.pki.certificateError.bad_certificate: + return tls.Alert.Description.bad_certificate; + case forge.pki.certificateError.unsupported_certificate: + return tls.Alert.Description.unsupported_certificate; + case forge.pki.certificateError.certificate_revoked: + return tls.Alert.Description.certificate_revoked; + case forge.pki.certificateError.certificate_expired: + return tls.Alert.Description.certificate_expired; + case forge.pki.certificateError.certificate_unknown: + return tls.Alert.Description.certificate_unknown; + case forge.pki.certificateError.unknown_ca: + return tls.Alert.Description.unknown_ca; + default: + return tls.Alert.Description.bad_certificate; + } +}; + +/** + * Maps a tls.Alert.Description to a pki.certificateError. + * + * @param desc the alert description. + * + * @return the certificate error. + */ +var _alertDescToCertError = function(desc) { + switch(desc) { + case true: + return true; + case tls.Alert.Description.bad_certificate: + return forge.pki.certificateError.bad_certificate; + case tls.Alert.Description.unsupported_certificate: + return forge.pki.certificateError.unsupported_certificate; + case tls.Alert.Description.certificate_revoked: + return forge.pki.certificateError.certificate_revoked; + case tls.Alert.Description.certificate_expired: + return forge.pki.certificateError.certificate_expired; + case tls.Alert.Description.certificate_unknown: + return forge.pki.certificateError.certificate_unknown; + case tls.Alert.Description.unknown_ca: + return forge.pki.certificateError.unknown_ca; + default: + return forge.pki.certificateError.bad_certificate; + } +}; + +/** + * Verifies a certificate chain against the given connection's + * Certificate Authority store. + * + * @param c the TLS connection. + * @param chain the certificate chain to verify, with the root or highest + * authority at the end. + * + * @return true if successful, false if not. + */ +tls.verifyCertificateChain = function(c, chain) { + try { + // Make a copy of c.verifyOptions so that we can modify options.verify + // without modifying c.verifyOptions. + var options = {}; + for (var key in c.verifyOptions) { + options[key] = c.verifyOptions[key]; + } + + options.verify = function(vfd, depth, chain) { + // convert pki.certificateError to tls alert description + var desc = _certErrorToAlertDesc(vfd); + + // call application callback + var ret = c.verify(c, vfd, depth, chain); + if(ret !== true) { + if(typeof ret === 'object' && !forge.util.isArray(ret)) { + // throw custom error + var error = new Error('The application rejected the certificate.'); + error.send = true; + error.alert = { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.bad_certificate + }; + if(ret.message) { + error.message = ret.message; + } + if(ret.alert) { + error.alert.description = ret.alert; + } + throw error; + } + + // convert tls alert description to pki.certificateError + if(ret !== vfd) { + ret = _alertDescToCertError(ret); + } + } + + return ret; + }; + + // verify chain + forge.pki.verifyCertificateChain(c.caStore, chain, options); + } catch(ex) { + // build tls error if not already customized + var err = ex; + if(typeof err !== 'object' || forge.util.isArray(err)) { + err = { + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: _certErrorToAlertDesc(ex) + } + }; + } + if(!('send' in err)) { + err.send = true; + } + if(!('alert' in err)) { + err.alert = { + level: tls.Alert.Level.fatal, + description: _certErrorToAlertDesc(err.error) + }; + } + + // send error + c.error(c, err); + } + + return !c.fail; +}; + +/** + * Creates a new TLS session cache. + * + * @param cache optional map of session ID to cached session. + * @param capacity the maximum size for the cache (default: 100). + * + * @return the new TLS session cache. + */ +tls.createSessionCache = function(cache, capacity) { + var rval = null; + + // assume input is already a session cache object + if(cache && cache.getSession && cache.setSession && cache.order) { + rval = cache; + } else { + // create cache + rval = {}; + rval.cache = cache || {}; + rval.capacity = Math.max(capacity || 100, 1); + rval.order = []; + + // store order for sessions, delete session overflow + for(var key in cache) { + if(rval.order.length <= capacity) { + rval.order.push(key); + } else { + delete cache[key]; + } + } + + // get a session from a session ID (or get any session) + rval.getSession = function(sessionId) { + var session = null; + var key = null; + + // if session ID provided, use it + if(sessionId) { + key = forge.util.bytesToHex(sessionId); + } else if(rval.order.length > 0) { + // get first session from cache + key = rval.order[0]; + } + + if(key !== null && key in rval.cache) { + // get cached session and remove from cache + session = rval.cache[key]; + delete rval.cache[key]; + for(var i in rval.order) { + if(rval.order[i] === key) { + rval.order.splice(i, 1); + break; + } + } + } + + return session; + }; + + // set a session in the cache + rval.setSession = function(sessionId, session) { + // remove session from cache if at capacity + if(rval.order.length === rval.capacity) { + var key = rval.order.shift(); + delete rval.cache[key]; + } + // add session to cache + var key = forge.util.bytesToHex(sessionId); + rval.order.push(key); + rval.cache[key] = session; + }; + } + + return rval; +}; + +/** + * Creates a new TLS connection. + * + * See public createConnection() docs for more details. + * + * @param options the options for this connection. + * + * @return the new TLS connection. + */ +tls.createConnection = function(options) { + var caStore = null; + if(options.caStore) { + // if CA store is an array, convert it to a CA store object + if(forge.util.isArray(options.caStore)) { + caStore = forge.pki.createCaStore(options.caStore); + } else { + caStore = options.caStore; + } + } else { + // create empty CA store + caStore = forge.pki.createCaStore(); + } + + // setup default cipher suites + var cipherSuites = options.cipherSuites || null; + if(cipherSuites === null) { + cipherSuites = []; + for(var key in tls.CipherSuites) { + cipherSuites.push(tls.CipherSuites[key]); + } + } + + // set default entity + var entity = (options.server || false) ? + tls.ConnectionEnd.server : tls.ConnectionEnd.client; + + // create session cache if requested + var sessionCache = options.sessionCache ? + tls.createSessionCache(options.sessionCache) : null; + + // create TLS connection + var c = { + version: {major: tls.Version.major, minor: tls.Version.minor}, + entity: entity, + sessionId: options.sessionId, + caStore: caStore, + sessionCache: sessionCache, + cipherSuites: cipherSuites, + connected: options.connected, + virtualHost: options.virtualHost || null, + verifyClient: options.verifyClient || false, + verify: options.verify || function(cn, vfd, dpth, cts) {return vfd;}, + verifyOptions: options.verifyOptions || {}, + getCertificate: options.getCertificate || null, + getPrivateKey: options.getPrivateKey || null, + getSignature: options.getSignature || null, + input: forge.util.createBuffer(), + tlsData: forge.util.createBuffer(), + data: forge.util.createBuffer(), + tlsDataReady: options.tlsDataReady, + dataReady: options.dataReady, + heartbeatReceived: options.heartbeatReceived, + closed: options.closed, + error: function(c, ex) { + // set origin if not set + ex.origin = ex.origin || + ((c.entity === tls.ConnectionEnd.client) ? 'client' : 'server'); + + // send TLS alert + if(ex.send) { + tls.queue(c, tls.createAlert(c, ex.alert)); + tls.flush(c); + } + + // error is fatal by default + var fatal = (ex.fatal !== false); + if(fatal) { + // set fail flag + c.fail = true; + } + + // call error handler first + options.error(c, ex); + + if(fatal) { + // fatal error, close connection, do not clear fail + c.close(false); + } + }, + deflate: options.deflate || null, + inflate: options.inflate || null + }; + + /** + * Resets a closed TLS connection for reuse. Called in c.close(). + * + * @param clearFail true to clear the fail flag (default: true). + */ + c.reset = function(clearFail) { + c.version = {major: tls.Version.major, minor: tls.Version.minor}; + c.record = null; + c.session = null; + c.peerCertificate = null; + c.state = { + pending: null, + current: null + }; + c.expect = (c.entity === tls.ConnectionEnd.client) ? SHE : CHE; + c.fragmented = null; + c.records = []; + c.open = false; + c.handshakes = 0; + c.handshaking = false; + c.isConnected = false; + c.fail = !(clearFail || typeof(clearFail) === 'undefined'); + c.input.clear(); + c.tlsData.clear(); + c.data.clear(); + c.state.current = tls.createConnectionState(c); + }; + + // do initial reset of connection + c.reset(); + + /** + * Updates the current TLS engine state based on the given record. + * + * @param c the TLS connection. + * @param record the TLS record to act on. + */ + var _update = function(c, record) { + // get record handler (align type in table by subtracting lowest) + var aligned = record.type - tls.ContentType.change_cipher_spec; + var handlers = ctTable[c.entity][c.expect]; + if(aligned in handlers) { + handlers[aligned](c, record); + } else { + // unexpected record + tls.handleUnexpected(c, record); + } + }; + + /** + * Reads the record header and initializes the next record on the given + * connection. + * + * @param c the TLS connection with the next record. + * + * @return 0 if the input data could be processed, otherwise the + * number of bytes required for data to be processed. + */ + var _readRecordHeader = function(c) { + var rval = 0; + + // get input buffer and its length + var b = c.input; + var len = b.length(); + + // need at least 5 bytes to initialize a record + if(len < 5) { + rval = 5 - len; + } else { + // enough bytes for header + // initialize record + c.record = { + type: b.getByte(), + version: { + major: b.getByte(), + minor: b.getByte() + }, + length: b.getInt16(), + fragment: forge.util.createBuffer(), + ready: false + }; + + // check record version + var compatibleVersion = (c.record.version.major === c.version.major); + if(compatibleVersion && c.session && c.session.version) { + // session version already set, require same minor version + compatibleVersion = (c.record.version.minor === c.version.minor); + } + if(!compatibleVersion) { + c.error(c, { + message: 'Incompatible TLS version.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: tls.Alert.Description.protocol_version + } + }); + } + } + + return rval; + }; + + /** + * Reads the next record's contents and appends its message to any + * previously fragmented message. + * + * @param c the TLS connection with the next record. + * + * @return 0 if the input data could be processed, otherwise the + * number of bytes required for data to be processed. + */ + var _readRecord = function(c) { + var rval = 0; + + // ensure there is enough input data to get the entire record + var b = c.input; + var len = b.length(); + if(len < c.record.length) { + // not enough data yet, return how much is required + rval = c.record.length - len; + } else { + // there is enough data to parse the pending record + // fill record fragment and compact input buffer + c.record.fragment.putBytes(b.getBytes(c.record.length)); + b.compact(); + + // update record using current read state + var s = c.state.current.read; + if(s.update(c, c.record)) { + // see if there is a previously fragmented message that the + // new record's message fragment should be appended to + if(c.fragmented !== null) { + // if the record type matches a previously fragmented + // record, append the record fragment to it + if(c.fragmented.type === c.record.type) { + // concatenate record fragments + c.fragmented.fragment.putBuffer(c.record.fragment); + c.record = c.fragmented; + } else { + // error, invalid fragmented record + c.error(c, { + message: 'Invalid fragmented record.', + send: true, + alert: { + level: tls.Alert.Level.fatal, + description: + tls.Alert.Description.unexpected_message + } + }); + } + } + + // record is now ready + c.record.ready = true; + } + } + + return rval; + }; + + /** + * Performs a handshake using the TLS Handshake Protocol, as a client. + * + * This method should only be called if the connection is in client mode. + * + * @param sessionId the session ID to use, null to start a new one. + */ + c.handshake = function(sessionId) { + // error to call this in non-client mode + if(c.entity !== tls.ConnectionEnd.client) { + // not fatal error + c.error(c, { + message: 'Cannot initiate handshake as a server.', + fatal: false + }); + } else if(c.handshaking) { + // handshake is already in progress, fail but not fatal error + c.error(c, { + message: 'Handshake already in progress.', + fatal: false + }); + } else { + // clear fail flag on reuse + if(c.fail && !c.open && c.handshakes === 0) { + c.fail = false; + } + + // now handshaking + c.handshaking = true; + + // default to blank (new session) + sessionId = sessionId || ''; + + // if a session ID was specified, try to find it in the cache + var session = null; + if(sessionId.length > 0) { + if(c.sessionCache) { + session = c.sessionCache.getSession(sessionId); + } + + // matching session not found in cache, clear session ID + if(session === null) { + sessionId = ''; + } + } + + // no session given, grab a session from the cache, if available + if(sessionId.length === 0 && c.sessionCache) { + session = c.sessionCache.getSession(); + if(session !== null) { + sessionId = session.id; + } + } + + // set up session + c.session = { + id: sessionId, + version: null, + cipherSuite: null, + compressionMethod: null, + serverCertificate: null, + certificateRequest: null, + clientCertificate: null, + sp: {}, + md5: forge.md.md5.create(), + sha1: forge.md.sha1.create() + }; + + // use existing session information + if(session) { + // only update version on connection, session version not yet set + c.version = session.version; + c.session.sp = session.sp; + } + + // generate new client random + c.session.sp.client_random = tls.createRandom().getBytes(); + + // connection now open + c.open = true; + + // send hello + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.handshake, + data: tls.createClientHello(c) + })); + tls.flush(c); + } + }; + + /** + * Called when TLS protocol data has been received from somewhere and should + * be processed by the TLS engine. + * + * @param data the TLS protocol data, as a string, to process. + * + * @return 0 if the data could be processed, otherwise the number of bytes + * required for data to be processed. + */ + c.process = function(data) { + var rval = 0; + + // buffer input data + if(data) { + c.input.putBytes(data); + } + + // process next record if no failure, process will be called after + // each record is handled (since handling can be asynchronous) + if(!c.fail) { + // reset record if ready and now empty + if(c.record !== null && + c.record.ready && c.record.fragment.isEmpty()) { + c.record = null; + } + + // if there is no pending record, try to read record header + if(c.record === null) { + rval = _readRecordHeader(c); + } + + // read the next record (if record not yet ready) + if(!c.fail && c.record !== null && !c.record.ready) { + rval = _readRecord(c); + } + + // record ready to be handled, update engine state + if(!c.fail && c.record !== null && c.record.ready) { + _update(c, c.record); + } + } + + return rval; + }; + + /** + * Requests that application data be packaged into a TLS record. The + * tlsDataReady handler will be called when the TLS record(s) have been + * prepared. + * + * @param data the application data, as a raw 'binary' encoded string, to + * be sent; to send utf-16/utf-8 string data, use the return value + * of util.encodeUtf8(str). + * + * @return true on success, false on failure. + */ + c.prepare = function(data) { + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.application_data, + data: forge.util.createBuffer(data) + })); + return tls.flush(c); + }; + + /** + * Requests that a heartbeat request be packaged into a TLS record for + * transmission. The tlsDataReady handler will be called when TLS record(s) + * have been prepared. + * + * When a heartbeat response has been received, the heartbeatReceived + * handler will be called with the matching payload. This handler can + * be used to clear a retransmission timer, etc. + * + * @param payload the heartbeat data to send as the payload in the message. + * @param [payloadLength] the payload length to use, defaults to the + * actual payload length. + * + * @return true on success, false on failure. + */ + c.prepareHeartbeatRequest = function(payload, payloadLength) { + if(payload instanceof forge.util.ByteBuffer) { + payload = payload.bytes(); + } + if(typeof payloadLength === 'undefined') { + payloadLength = payload.length; + } + c.expectedHeartbeatPayload = payload; + tls.queue(c, tls.createRecord(c, { + type: tls.ContentType.heartbeat, + data: tls.createHeartbeat( + tls.HeartbeatMessageType.heartbeat_request, payload, payloadLength) + })); + return tls.flush(c); + }; + + /** + * Closes the connection (sends a close_notify alert). + * + * @param clearFail true to clear the fail flag (default: true). + */ + c.close = function(clearFail) { + // save session if connection didn't fail + if(!c.fail && c.sessionCache && c.session) { + // only need to preserve session ID, version, and security params + var session = { + id: c.session.id, + version: c.session.version, + sp: c.session.sp + }; + session.sp.keys = null; + c.sessionCache.setSession(session.id, session); + } + + if(c.open) { + // connection no longer open, clear input + c.open = false; + c.input.clear(); + + // if connected or handshaking, send an alert + if(c.isConnected || c.handshaking) { + c.isConnected = c.handshaking = false; + + // send close_notify alert + tls.queue(c, tls.createAlert(c, { + level: tls.Alert.Level.warning, + description: tls.Alert.Description.close_notify + })); + tls.flush(c); + } + + // call handler + c.closed(c); + } + + // reset TLS connection, do not clear fail flag + c.reset(clearFail); + }; + + return c; +}; + +/* TLS API */ +module.exports = forge.tls = forge.tls || {}; + +// expose non-functions +for(var key in tls) { + if(typeof tls[key] !== 'function') { + forge.tls[key] = tls[key]; + } +} + +// expose prf_tls1 for testing +forge.tls.prf_tls1 = prf_TLS1; + +// expose sha1 hmac method +forge.tls.hmac_sha1 = hmac_sha1; + +// expose session cache creation +forge.tls.createSessionCache = tls.createSessionCache; + +/** + * Creates a new TLS connection. This does not make any assumptions about the + * transport layer that TLS is working on top of, ie: it does not assume there + * is a TCP/IP connection or establish one. A TLS connection is totally + * abstracted away from the layer is runs on top of, it merely establishes a + * secure channel between a client" and a "server". + * + * A TLS connection contains 4 connection states: pending read and write, and + * current read and write. + * + * At initialization, the current read and write states will be null. Only once + * the security parameters have been set and the keys have been generated can + * the pending states be converted into current states. Current states will be + * updated for each record processed. + * + * A custom certificate verify callback may be provided to check information + * like the common name on the server's certificate. It will be called for + * every certificate in the chain. It has the following signature: + * + * variable func(c, certs, index, preVerify) + * Where: + * c The TLS connection + * verified Set to true if certificate was verified, otherwise the alert + * tls.Alert.Description for why the certificate failed. + * depth The current index in the chain, where 0 is the server's cert. + * certs The certificate chain, *NOTE* if the server was anonymous then + * the chain will be empty. + * + * The function returns true on success and on failure either the appropriate + * tls.Alert.Description or an object with 'alert' set to the appropriate + * tls.Alert.Description and 'message' set to a custom error message. If true + * is not returned then the connection will abort using, in order of + * availability, first the returned alert description, second the preVerify + * alert description, and lastly the default 'bad_certificate'. + * + * There are three callbacks that can be used to make use of client-side + * certificates where each takes the TLS connection as the first parameter: + * + * getCertificate(conn, hint) + * The second parameter is a hint as to which certificate should be + * returned. If the connection entity is a client, then the hint will be + * the CertificateRequest message from the server that is part of the + * TLS protocol. If the connection entity is a server, then it will be + * the servername list provided via an SNI extension the ClientHello, if + * one was provided (empty array if not). The hint can be examined to + * determine which certificate to use (advanced). Most implementations + * will just return a certificate. The return value must be a + * PEM-formatted certificate or an array of PEM-formatted certificates + * that constitute a certificate chain, with the first in the array/chain + * being the client's certificate. + * getPrivateKey(conn, certificate) + * The second parameter is an forge.pki X.509 certificate object that + * is associated with the requested private key. The return value must + * be a PEM-formatted private key. + * getSignature(conn, bytes, callback) + * This callback can be used instead of getPrivateKey if the private key + * is not directly accessible in javascript or should not be. For + * instance, a secure external web service could provide the signature + * in exchange for appropriate credentials. The second parameter is a + * string of bytes to be signed that are part of the TLS protocol. These + * bytes are used to verify that the private key for the previously + * provided client-side certificate is accessible to the client. The + * callback is a function that takes 2 parameters, the TLS connection + * and the RSA encrypted (signed) bytes as a string. This callback must + * be called once the signature is ready. + * + * @param options the options for this connection: + * server: true if the connection is server-side, false for client. + * sessionId: a session ID to reuse, null for a new connection. + * caStore: an array of certificates to trust. + * sessionCache: a session cache to use. + * cipherSuites: an optional array of cipher suites to use, + * see tls.CipherSuites. + * connected: function(conn) called when the first handshake completes. + * virtualHost: the virtual server name to use in a TLS SNI extension. + * verifyClient: true to require a client certificate in server mode, + * 'optional' to request one, false not to (default: false). + * verify: a handler used to custom verify certificates in the chain. + * verifyOptions: an object with options for the certificate chain validation. + * See documentation of pki.verifyCertificateChain for possible options. + * verifyOptions.verify is ignored. If you wish to specify a verify handler + * use the verify key. + * getCertificate: an optional callback used to get a certificate or + * a chain of certificates (as an array). + * getPrivateKey: an optional callback used to get a private key. + * getSignature: an optional callback used to get a signature. + * tlsDataReady: function(conn) called when TLS protocol data has been + * prepared and is ready to be used (typically sent over a socket + * connection to its destination), read from conn.tlsData buffer. + * dataReady: function(conn) called when application data has + * been parsed from a TLS record and should be consumed by the + * application, read from conn.data buffer. + * closed: function(conn) called when the connection has been closed. + * error: function(conn, error) called when there was an error. + * deflate: function(inBytes) if provided, will deflate TLS records using + * the deflate algorithm if the server supports it. + * inflate: function(inBytes) if provided, will inflate TLS records using + * the deflate algorithm if the server supports it. + * + * @return the new TLS connection. + */ +forge.tls.createConnection = tls.createConnection; diff --git a/node_modules/node-forge/lib/tlssocket.js b/node_modules/node-forge/lib/tlssocket.js new file mode 100644 index 0000000..d09b650 --- /dev/null +++ b/node_modules/node-forge/lib/tlssocket.js @@ -0,0 +1,249 @@ +/** + * Socket wrapping functions for TLS. + * + * @author Dave Longley + * + * Copyright (c) 2009-2012 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./tls'); + +/** + * Wraps a forge.net socket with a TLS layer. + * + * @param options: + * sessionId: a session ID to reuse, null for a new connection if no session + * cache is provided or it is empty. + * caStore: an array of certificates to trust. + * sessionCache: a session cache to use. + * cipherSuites: an optional array of cipher suites to use, see + * tls.CipherSuites. + * socket: the socket to wrap. + * virtualHost: the virtual server name to use in a TLS SNI extension. + * verify: a handler used to custom verify certificates in the chain. + * getCertificate: an optional callback used to get a certificate. + * getPrivateKey: an optional callback used to get a private key. + * getSignature: an optional callback used to get a signature. + * deflate: function(inBytes) if provided, will deflate TLS records using + * the deflate algorithm if the server supports it. + * inflate: function(inBytes) if provided, will inflate TLS records using + * the deflate algorithm if the server supports it. + * + * @return the TLS-wrapped socket. + */ +forge.tls.wrapSocket = function(options) { + // get raw socket + var socket = options.socket; + + // create TLS socket + var tlsSocket = { + id: socket.id, + // set handlers + connected: socket.connected || function(e) {}, + closed: socket.closed || function(e) {}, + data: socket.data || function(e) {}, + error: socket.error || function(e) {} + }; + + // create TLS connection + var c = forge.tls.createConnection({ + server: false, + sessionId: options.sessionId || null, + caStore: options.caStore || [], + sessionCache: options.sessionCache || null, + cipherSuites: options.cipherSuites || null, + virtualHost: options.virtualHost, + verify: options.verify, + getCertificate: options.getCertificate, + getPrivateKey: options.getPrivateKey, + getSignature: options.getSignature, + deflate: options.deflate, + inflate: options.inflate, + connected: function(c) { + // first handshake complete, call handler + if(c.handshakes === 1) { + tlsSocket.connected({ + id: socket.id, + type: 'connect', + bytesAvailable: c.data.length() + }); + } + }, + tlsDataReady: function(c) { + // send TLS data over socket + return socket.send(c.tlsData.getBytes()); + }, + dataReady: function(c) { + // indicate application data is ready + tlsSocket.data({ + id: socket.id, + type: 'socketData', + bytesAvailable: c.data.length() + }); + }, + closed: function(c) { + // close socket + socket.close(); + }, + error: function(c, e) { + // send error, close socket + tlsSocket.error({ + id: socket.id, + type: 'tlsError', + message: e.message, + bytesAvailable: 0, + error: e + }); + socket.close(); + } + }); + + // handle doing handshake after connecting + socket.connected = function(e) { + c.handshake(options.sessionId); + }; + + // handle closing TLS connection + socket.closed = function(e) { + if(c.open && c.handshaking) { + // error + tlsSocket.error({ + id: socket.id, + type: 'ioError', + message: 'Connection closed during handshake.', + bytesAvailable: 0 + }); + } + c.close(); + + // call socket handler + tlsSocket.closed({ + id: socket.id, + type: 'close', + bytesAvailable: 0 + }); + }; + + // handle error on socket + socket.error = function(e) { + // error + tlsSocket.error({ + id: socket.id, + type: e.type, + message: e.message, + bytesAvailable: 0 + }); + c.close(); + }; + + // handle receiving raw TLS data from socket + var _requiredBytes = 0; + socket.data = function(e) { + // drop data if connection not open + if(!c.open) { + socket.receive(e.bytesAvailable); + } else { + // only receive if there are enough bytes available to + // process a record + if(e.bytesAvailable >= _requiredBytes) { + var count = Math.max(e.bytesAvailable, _requiredBytes); + var data = socket.receive(count); + if(data !== null) { + _requiredBytes = c.process(data); + } + } + } + }; + + /** + * Destroys this socket. + */ + tlsSocket.destroy = function() { + socket.destroy(); + }; + + /** + * Sets this socket's TLS session cache. This should be called before + * the socket is connected or after it is closed. + * + * The cache is an object mapping session IDs to internal opaque state. + * An application might need to change the cache used by a particular + * tlsSocket between connections if it accesses multiple TLS hosts. + * + * @param cache the session cache to use. + */ + tlsSocket.setSessionCache = function(cache) { + c.sessionCache = tls.createSessionCache(cache); + }; + + /** + * Connects this socket. + * + * @param options: + * host: the host to connect to. + * port: the port to connect to. + * policyPort: the policy port to use (if non-default), 0 to + * use the flash default. + * policyUrl: the policy file URL to use (instead of port). + */ + tlsSocket.connect = function(options) { + socket.connect(options); + }; + + /** + * Closes this socket. + */ + tlsSocket.close = function() { + c.close(); + }; + + /** + * Determines if the socket is connected or not. + * + * @return true if connected, false if not. + */ + tlsSocket.isConnected = function() { + return c.isConnected && socket.isConnected(); + }; + + /** + * Writes bytes to this socket. + * + * @param bytes the bytes (as a string) to write. + * + * @return true on success, false on failure. + */ + tlsSocket.send = function(bytes) { + return c.prepare(bytes); + }; + + /** + * Reads bytes from this socket (non-blocking). Fewer than the number of + * bytes requested may be read if enough bytes are not available. + * + * This method should be called from the data handler if there are enough + * bytes available. To see how many bytes are available, check the + * 'bytesAvailable' property on the event in the data handler or call the + * bytesAvailable() function on the socket. If the browser is msie, then the + * bytesAvailable() function should be used to avoid race conditions. + * Otherwise, using the property on the data handler's event may be quicker. + * + * @param count the maximum number of bytes to read. + * + * @return the bytes read (as a string) or null on error. + */ + tlsSocket.receive = function(count) { + return c.data.getBytes(count); + }; + + /** + * Gets the number of bytes available for receiving on the socket. + * + * @return the number of bytes available for receiving. + */ + tlsSocket.bytesAvailable = function() { + return c.data.length(); + }; + + return tlsSocket; +}; diff --git a/node_modules/node-forge/lib/util.js b/node_modules/node-forge/lib/util.js new file mode 100644 index 0000000..aaede5a --- /dev/null +++ b/node_modules/node-forge/lib/util.js @@ -0,0 +1,2652 @@ +/** + * Utility functions for web applications. + * + * @author Dave Longley + * + * Copyright (c) 2010-2018 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +var baseN = require('./baseN'); + +/* Utilities API */ +var util = module.exports = forge.util = forge.util || {}; + +// define setImmediate and nextTick +(function() { + // use native nextTick (unless we're in webpack) + // webpack (or better node-libs-browser polyfill) sets process.browser. + // this way we can detect webpack properly + if(typeof process !== 'undefined' && process.nextTick && !process.browser) { + util.nextTick = process.nextTick; + if(typeof setImmediate === 'function') { + util.setImmediate = setImmediate; + } else { + // polyfill setImmediate with nextTick, older versions of node + // (those w/o setImmediate) won't totally starve IO + util.setImmediate = util.nextTick; + } + return; + } + + // polyfill nextTick with native setImmediate + if(typeof setImmediate === 'function') { + util.setImmediate = function() { return setImmediate.apply(undefined, arguments); }; + util.nextTick = function(callback) { + return setImmediate(callback); + }; + return; + } + + /* Note: A polyfill upgrade pattern is used here to allow combining + polyfills. For example, MutationObserver is fast, but blocks UI updates, + so it needs to allow UI updates periodically, so it falls back on + postMessage or setTimeout. */ + + // polyfill with setTimeout + util.setImmediate = function(callback) { + setTimeout(callback, 0); + }; + + // upgrade polyfill to use postMessage + if(typeof window !== 'undefined' && + typeof window.postMessage === 'function') { + var msg = 'forge.setImmediate'; + var callbacks = []; + util.setImmediate = function(callback) { + callbacks.push(callback); + // only send message when one hasn't been sent in + // the current turn of the event loop + if(callbacks.length === 1) { + window.postMessage(msg, '*'); + } + }; + function handler(event) { + if(event.source === window && event.data === msg) { + event.stopPropagation(); + var copy = callbacks.slice(); + callbacks.length = 0; + copy.forEach(function(callback) { + callback(); + }); + } + } + window.addEventListener('message', handler, true); + } + + // upgrade polyfill to use MutationObserver + if(typeof MutationObserver !== 'undefined') { + // polyfill with MutationObserver + var now = Date.now(); + var attr = true; + var div = document.createElement('div'); + var callbacks = []; + new MutationObserver(function() { + var copy = callbacks.slice(); + callbacks.length = 0; + copy.forEach(function(callback) { + callback(); + }); + }).observe(div, {attributes: true}); + var oldSetImmediate = util.setImmediate; + util.setImmediate = function(callback) { + if(Date.now() - now > 15) { + now = Date.now(); + oldSetImmediate(callback); + } else { + callbacks.push(callback); + // only trigger observer when it hasn't been triggered in + // the current turn of the event loop + if(callbacks.length === 1) { + div.setAttribute('a', attr = !attr); + } + } + }; + } + + util.nextTick = util.setImmediate; +})(); + +// check if running under Node.js +util.isNodejs = + typeof process !== 'undefined' && process.versions && process.versions.node; + + +// 'self' will also work in Web Workers (instance of WorkerGlobalScope) while +// it will point to `window` in the main thread. +// To remain compatible with older browsers, we fall back to 'window' if 'self' +// is not available. +util.globalScope = (function() { + if(util.isNodejs) { + return global; + } + + return typeof self === 'undefined' ? window : self; +})(); + +// define isArray +util.isArray = Array.isArray || function(x) { + return Object.prototype.toString.call(x) === '[object Array]'; +}; + +// define isArrayBuffer +util.isArrayBuffer = function(x) { + return typeof ArrayBuffer !== 'undefined' && x instanceof ArrayBuffer; +}; + +// define isArrayBufferView +util.isArrayBufferView = function(x) { + return x && util.isArrayBuffer(x.buffer) && x.byteLength !== undefined; +}; + +/** + * Ensure a bits param is 8, 16, 24, or 32. Used to validate input for + * algorithms where bit manipulation, JavaScript limitations, and/or algorithm + * design only allow for byte operations of a limited size. + * + * @param n number of bits. + * + * Throw Error if n invalid. + */ +function _checkBitsParam(n) { + if(!(n === 8 || n === 16 || n === 24 || n === 32)) { + throw new Error('Only 8, 16, 24, or 32 bits supported: ' + n); + } +} + +// TODO: set ByteBuffer to best available backing +util.ByteBuffer = ByteStringBuffer; + +/** Buffer w/BinaryString backing */ + +/** + * Constructor for a binary string backed byte buffer. + * + * @param [b] the bytes to wrap (either encoded as string, one byte per + * character, or as an ArrayBuffer or Typed Array). + */ +function ByteStringBuffer(b) { + // TODO: update to match DataBuffer API + + // the data in this buffer + this.data = ''; + // the pointer for reading from this buffer + this.read = 0; + + if(typeof b === 'string') { + this.data = b; + } else if(util.isArrayBuffer(b) || util.isArrayBufferView(b)) { + if(typeof Buffer !== 'undefined' && b instanceof Buffer) { + this.data = b.toString('binary'); + } else { + // convert native buffer to forge buffer + // FIXME: support native buffers internally instead + var arr = new Uint8Array(b); + try { + this.data = String.fromCharCode.apply(null, arr); + } catch(e) { + for(var i = 0; i < arr.length; ++i) { + this.putByte(arr[i]); + } + } + } + } else if(b instanceof ByteStringBuffer || + (typeof b === 'object' && typeof b.data === 'string' && + typeof b.read === 'number')) { + // copy existing buffer + this.data = b.data; + this.read = b.read; + } + + // used for v8 optimization + this._constructedStringLength = 0; +} +util.ByteStringBuffer = ByteStringBuffer; + +/* Note: This is an optimization for V8-based browsers. When V8 concatenates + a string, the strings are only joined logically using a "cons string" or + "constructed/concatenated string". These containers keep references to one + another and can result in very large memory usage. For example, if a 2MB + string is constructed by concatenating 4 bytes together at a time, the + memory usage will be ~44MB; so ~22x increase. The strings are only joined + together when an operation requiring their joining takes place, such as + substr(). This function is called when adding data to this buffer to ensure + these types of strings are periodically joined to reduce the memory + footprint. */ +var _MAX_CONSTRUCTED_STRING_LENGTH = 4096; +util.ByteStringBuffer.prototype._optimizeConstructedString = function(x) { + this._constructedStringLength += x; + if(this._constructedStringLength > _MAX_CONSTRUCTED_STRING_LENGTH) { + // this substr() should cause the constructed string to join + this.data.substr(0, 1); + this._constructedStringLength = 0; + } +}; + +/** + * Gets the number of bytes in this buffer. + * + * @return the number of bytes in this buffer. + */ +util.ByteStringBuffer.prototype.length = function() { + return this.data.length - this.read; +}; + +/** + * Gets whether or not this buffer is empty. + * + * @return true if this buffer is empty, false if not. + */ +util.ByteStringBuffer.prototype.isEmpty = function() { + return this.length() <= 0; +}; + +/** + * Puts a byte in this buffer. + * + * @param b the byte to put. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putByte = function(b) { + return this.putBytes(String.fromCharCode(b)); +}; + +/** + * Puts a byte in this buffer N times. + * + * @param b the byte to put. + * @param n the number of bytes of value b to put. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.fillWithByte = function(b, n) { + b = String.fromCharCode(b); + var d = this.data; + while(n > 0) { + if(n & 1) { + d += b; + } + n >>>= 1; + if(n > 0) { + b += b; + } + } + this.data = d; + this._optimizeConstructedString(n); + return this; +}; + +/** + * Puts bytes in this buffer. + * + * @param bytes the bytes (as a binary encoded string) to put. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putBytes = function(bytes) { + this.data += bytes; + this._optimizeConstructedString(bytes.length); + return this; +}; + +/** + * Puts a UTF-16 encoded string into this buffer. + * + * @param str the string to put. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putString = function(str) { + return this.putBytes(util.encodeUtf8(str)); +}; + +/** + * Puts a 16-bit integer in this buffer in big-endian order. + * + * @param i the 16-bit integer. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putInt16 = function(i) { + return this.putBytes( + String.fromCharCode(i >> 8 & 0xFF) + + String.fromCharCode(i & 0xFF)); +}; + +/** + * Puts a 24-bit integer in this buffer in big-endian order. + * + * @param i the 24-bit integer. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putInt24 = function(i) { + return this.putBytes( + String.fromCharCode(i >> 16 & 0xFF) + + String.fromCharCode(i >> 8 & 0xFF) + + String.fromCharCode(i & 0xFF)); +}; + +/** + * Puts a 32-bit integer in this buffer in big-endian order. + * + * @param i the 32-bit integer. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putInt32 = function(i) { + return this.putBytes( + String.fromCharCode(i >> 24 & 0xFF) + + String.fromCharCode(i >> 16 & 0xFF) + + String.fromCharCode(i >> 8 & 0xFF) + + String.fromCharCode(i & 0xFF)); +}; + +/** + * Puts a 16-bit integer in this buffer in little-endian order. + * + * @param i the 16-bit integer. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putInt16Le = function(i) { + return this.putBytes( + String.fromCharCode(i & 0xFF) + + String.fromCharCode(i >> 8 & 0xFF)); +}; + +/** + * Puts a 24-bit integer in this buffer in little-endian order. + * + * @param i the 24-bit integer. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putInt24Le = function(i) { + return this.putBytes( + String.fromCharCode(i & 0xFF) + + String.fromCharCode(i >> 8 & 0xFF) + + String.fromCharCode(i >> 16 & 0xFF)); +}; + +/** + * Puts a 32-bit integer in this buffer in little-endian order. + * + * @param i the 32-bit integer. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putInt32Le = function(i) { + return this.putBytes( + String.fromCharCode(i & 0xFF) + + String.fromCharCode(i >> 8 & 0xFF) + + String.fromCharCode(i >> 16 & 0xFF) + + String.fromCharCode(i >> 24 & 0xFF)); +}; + +/** + * Puts an n-bit integer in this buffer in big-endian order. + * + * @param i the n-bit integer. + * @param n the number of bits in the integer (8, 16, 24, or 32). + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putInt = function(i, n) { + _checkBitsParam(n); + var bytes = ''; + do { + n -= 8; + bytes += String.fromCharCode((i >> n) & 0xFF); + } while(n > 0); + return this.putBytes(bytes); +}; + +/** + * Puts a signed n-bit integer in this buffer in big-endian order. Two's + * complement representation is used. + * + * @param i the n-bit integer. + * @param n the number of bits in the integer (8, 16, 24, or 32). + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putSignedInt = function(i, n) { + // putInt checks n + if(i < 0) { + i += 2 << (n - 1); + } + return this.putInt(i, n); +}; + +/** + * Puts the given buffer into this buffer. + * + * @param buffer the buffer to put into this one. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.putBuffer = function(buffer) { + return this.putBytes(buffer.getBytes()); +}; + +/** + * Gets a byte from this buffer and advances the read pointer by 1. + * + * @return the byte. + */ +util.ByteStringBuffer.prototype.getByte = function() { + return this.data.charCodeAt(this.read++); +}; + +/** + * Gets a uint16 from this buffer in big-endian order and advances the read + * pointer by 2. + * + * @return the uint16. + */ +util.ByteStringBuffer.prototype.getInt16 = function() { + var rval = ( + this.data.charCodeAt(this.read) << 8 ^ + this.data.charCodeAt(this.read + 1)); + this.read += 2; + return rval; +}; + +/** + * Gets a uint24 from this buffer in big-endian order and advances the read + * pointer by 3. + * + * @return the uint24. + */ +util.ByteStringBuffer.prototype.getInt24 = function() { + var rval = ( + this.data.charCodeAt(this.read) << 16 ^ + this.data.charCodeAt(this.read + 1) << 8 ^ + this.data.charCodeAt(this.read + 2)); + this.read += 3; + return rval; +}; + +/** + * Gets a uint32 from this buffer in big-endian order and advances the read + * pointer by 4. + * + * @return the word. + */ +util.ByteStringBuffer.prototype.getInt32 = function() { + var rval = ( + this.data.charCodeAt(this.read) << 24 ^ + this.data.charCodeAt(this.read + 1) << 16 ^ + this.data.charCodeAt(this.read + 2) << 8 ^ + this.data.charCodeAt(this.read + 3)); + this.read += 4; + return rval; +}; + +/** + * Gets a uint16 from this buffer in little-endian order and advances the read + * pointer by 2. + * + * @return the uint16. + */ +util.ByteStringBuffer.prototype.getInt16Le = function() { + var rval = ( + this.data.charCodeAt(this.read) ^ + this.data.charCodeAt(this.read + 1) << 8); + this.read += 2; + return rval; +}; + +/** + * Gets a uint24 from this buffer in little-endian order and advances the read + * pointer by 3. + * + * @return the uint24. + */ +util.ByteStringBuffer.prototype.getInt24Le = function() { + var rval = ( + this.data.charCodeAt(this.read) ^ + this.data.charCodeAt(this.read + 1) << 8 ^ + this.data.charCodeAt(this.read + 2) << 16); + this.read += 3; + return rval; +}; + +/** + * Gets a uint32 from this buffer in little-endian order and advances the read + * pointer by 4. + * + * @return the word. + */ +util.ByteStringBuffer.prototype.getInt32Le = function() { + var rval = ( + this.data.charCodeAt(this.read) ^ + this.data.charCodeAt(this.read + 1) << 8 ^ + this.data.charCodeAt(this.read + 2) << 16 ^ + this.data.charCodeAt(this.read + 3) << 24); + this.read += 4; + return rval; +}; + +/** + * Gets an n-bit integer from this buffer in big-endian order and advances the + * read pointer by ceil(n/8). + * + * @param n the number of bits in the integer (8, 16, 24, or 32). + * + * @return the integer. + */ +util.ByteStringBuffer.prototype.getInt = function(n) { + _checkBitsParam(n); + var rval = 0; + do { + // TODO: Use (rval * 0x100) if adding support for 33 to 53 bits. + rval = (rval << 8) + this.data.charCodeAt(this.read++); + n -= 8; + } while(n > 0); + return rval; +}; + +/** + * Gets a signed n-bit integer from this buffer in big-endian order, using + * two's complement, and advances the read pointer by n/8. + * + * @param n the number of bits in the integer (8, 16, 24, or 32). + * + * @return the integer. + */ +util.ByteStringBuffer.prototype.getSignedInt = function(n) { + // getInt checks n + var x = this.getInt(n); + var max = 2 << (n - 2); + if(x >= max) { + x -= max << 1; + } + return x; +}; + +/** + * Reads bytes out as a binary encoded string and clears them from the + * buffer. Note that the resulting string is binary encoded (in node.js this + * encoding is referred to as `binary`, it is *not* `utf8`). + * + * @param count the number of bytes to read, undefined or null for all. + * + * @return a binary encoded string of bytes. + */ +util.ByteStringBuffer.prototype.getBytes = function(count) { + var rval; + if(count) { + // read count bytes + count = Math.min(this.length(), count); + rval = this.data.slice(this.read, this.read + count); + this.read += count; + } else if(count === 0) { + rval = ''; + } else { + // read all bytes, optimize to only copy when needed + rval = (this.read === 0) ? this.data : this.data.slice(this.read); + this.clear(); + } + return rval; +}; + +/** + * Gets a binary encoded string of the bytes from this buffer without + * modifying the read pointer. + * + * @param count the number of bytes to get, omit to get all. + * + * @return a string full of binary encoded characters. + */ +util.ByteStringBuffer.prototype.bytes = function(count) { + return (typeof(count) === 'undefined' ? + this.data.slice(this.read) : + this.data.slice(this.read, this.read + count)); +}; + +/** + * Gets a byte at the given index without modifying the read pointer. + * + * @param i the byte index. + * + * @return the byte. + */ +util.ByteStringBuffer.prototype.at = function(i) { + return this.data.charCodeAt(this.read + i); +}; + +/** + * Puts a byte at the given index without modifying the read pointer. + * + * @param i the byte index. + * @param b the byte to put. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.setAt = function(i, b) { + this.data = this.data.substr(0, this.read + i) + + String.fromCharCode(b) + + this.data.substr(this.read + i + 1); + return this; +}; + +/** + * Gets the last byte without modifying the read pointer. + * + * @return the last byte. + */ +util.ByteStringBuffer.prototype.last = function() { + return this.data.charCodeAt(this.data.length - 1); +}; + +/** + * Creates a copy of this buffer. + * + * @return the copy. + */ +util.ByteStringBuffer.prototype.copy = function() { + var c = util.createBuffer(this.data); + c.read = this.read; + return c; +}; + +/** + * Compacts this buffer. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.compact = function() { + if(this.read > 0) { + this.data = this.data.slice(this.read); + this.read = 0; + } + return this; +}; + +/** + * Clears this buffer. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.clear = function() { + this.data = ''; + this.read = 0; + return this; +}; + +/** + * Shortens this buffer by triming bytes off of the end of this buffer. + * + * @param count the number of bytes to trim off. + * + * @return this buffer. + */ +util.ByteStringBuffer.prototype.truncate = function(count) { + var len = Math.max(0, this.length() - count); + this.data = this.data.substr(this.read, len); + this.read = 0; + return this; +}; + +/** + * Converts this buffer to a hexadecimal string. + * + * @return a hexadecimal string. + */ +util.ByteStringBuffer.prototype.toHex = function() { + var rval = ''; + for(var i = this.read; i < this.data.length; ++i) { + var b = this.data.charCodeAt(i); + if(b < 16) { + rval += '0'; + } + rval += b.toString(16); + } + return rval; +}; + +/** + * Converts this buffer to a UTF-16 string (standard JavaScript string). + * + * @return a UTF-16 string. + */ +util.ByteStringBuffer.prototype.toString = function() { + return util.decodeUtf8(this.bytes()); +}; + +/** End Buffer w/BinaryString backing */ + +/** Buffer w/UInt8Array backing */ + +/** + * FIXME: Experimental. Do not use yet. + * + * Constructor for an ArrayBuffer-backed byte buffer. + * + * The buffer may be constructed from a string, an ArrayBuffer, DataView, or a + * TypedArray. + * + * If a string is given, its encoding should be provided as an option, + * otherwise it will default to 'binary'. A 'binary' string is encoded such + * that each character is one byte in length and size. + * + * If an ArrayBuffer, DataView, or TypedArray is given, it will be used + * *directly* without any copying. Note that, if a write to the buffer requires + * more space, the buffer will allocate a new backing ArrayBuffer to + * accommodate. The starting read and write offsets for the buffer may be + * given as options. + * + * @param [b] the initial bytes for this buffer. + * @param options the options to use: + * [readOffset] the starting read offset to use (default: 0). + * [writeOffset] the starting write offset to use (default: the + * length of the first parameter). + * [growSize] the minimum amount, in bytes, to grow the buffer by to + * accommodate writes (default: 1024). + * [encoding] the encoding ('binary', 'utf8', 'utf16', 'hex') for the + * first parameter, if it is a string (default: 'binary'). + */ +function DataBuffer(b, options) { + // default options + options = options || {}; + + // pointers for read from/write to buffer + this.read = options.readOffset || 0; + this.growSize = options.growSize || 1024; + + var isArrayBuffer = util.isArrayBuffer(b); + var isArrayBufferView = util.isArrayBufferView(b); + if(isArrayBuffer || isArrayBufferView) { + // use ArrayBuffer directly + if(isArrayBuffer) { + this.data = new DataView(b); + } else { + // TODO: adjust read/write offset based on the type of view + // or specify that this must be done in the options ... that the + // offsets are byte-based + this.data = new DataView(b.buffer, b.byteOffset, b.byteLength); + } + this.write = ('writeOffset' in options ? + options.writeOffset : this.data.byteLength); + return; + } + + // initialize to empty array buffer and add any given bytes using putBytes + this.data = new DataView(new ArrayBuffer(0)); + this.write = 0; + + if(b !== null && b !== undefined) { + this.putBytes(b); + } + + if('writeOffset' in options) { + this.write = options.writeOffset; + } +} +util.DataBuffer = DataBuffer; + +/** + * Gets the number of bytes in this buffer. + * + * @return the number of bytes in this buffer. + */ +util.DataBuffer.prototype.length = function() { + return this.write - this.read; +}; + +/** + * Gets whether or not this buffer is empty. + * + * @return true if this buffer is empty, false if not. + */ +util.DataBuffer.prototype.isEmpty = function() { + return this.length() <= 0; +}; + +/** + * Ensures this buffer has enough empty space to accommodate the given number + * of bytes. An optional parameter may be given that indicates a minimum + * amount to grow the buffer if necessary. If the parameter is not given, + * the buffer will be grown by some previously-specified default amount + * or heuristic. + * + * @param amount the number of bytes to accommodate. + * @param [growSize] the minimum amount, in bytes, to grow the buffer by if + * necessary. + */ +util.DataBuffer.prototype.accommodate = function(amount, growSize) { + if(this.length() >= amount) { + return this; + } + growSize = Math.max(growSize || this.growSize, amount); + + // grow buffer + var src = new Uint8Array( + this.data.buffer, this.data.byteOffset, this.data.byteLength); + var dst = new Uint8Array(this.length() + growSize); + dst.set(src); + this.data = new DataView(dst.buffer); + + return this; +}; + +/** + * Puts a byte in this buffer. + * + * @param b the byte to put. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putByte = function(b) { + this.accommodate(1); + this.data.setUint8(this.write++, b); + return this; +}; + +/** + * Puts a byte in this buffer N times. + * + * @param b the byte to put. + * @param n the number of bytes of value b to put. + * + * @return this buffer. + */ +util.DataBuffer.prototype.fillWithByte = function(b, n) { + this.accommodate(n); + for(var i = 0; i < n; ++i) { + this.data.setUint8(b); + } + return this; +}; + +/** + * Puts bytes in this buffer. The bytes may be given as a string, an + * ArrayBuffer, a DataView, or a TypedArray. + * + * @param bytes the bytes to put. + * @param [encoding] the encoding for the first parameter ('binary', 'utf8', + * 'utf16', 'hex'), if it is a string (default: 'binary'). + * + * @return this buffer. + */ +util.DataBuffer.prototype.putBytes = function(bytes, encoding) { + if(util.isArrayBufferView(bytes)) { + var src = new Uint8Array(bytes.buffer, bytes.byteOffset, bytes.byteLength); + var len = src.byteLength - src.byteOffset; + this.accommodate(len); + var dst = new Uint8Array(this.data.buffer, this.write); + dst.set(src); + this.write += len; + return this; + } + + if(util.isArrayBuffer(bytes)) { + var src = new Uint8Array(bytes); + this.accommodate(src.byteLength); + var dst = new Uint8Array(this.data.buffer); + dst.set(src, this.write); + this.write += src.byteLength; + return this; + } + + // bytes is a util.DataBuffer or equivalent + if(bytes instanceof util.DataBuffer || + (typeof bytes === 'object' && + typeof bytes.read === 'number' && typeof bytes.write === 'number' && + util.isArrayBufferView(bytes.data))) { + var src = new Uint8Array(bytes.data.byteLength, bytes.read, bytes.length()); + this.accommodate(src.byteLength); + var dst = new Uint8Array(bytes.data.byteLength, this.write); + dst.set(src); + this.write += src.byteLength; + return this; + } + + if(bytes instanceof util.ByteStringBuffer) { + // copy binary string and process as the same as a string parameter below + bytes = bytes.data; + encoding = 'binary'; + } + + // string conversion + encoding = encoding || 'binary'; + if(typeof bytes === 'string') { + var view; + + // decode from string + if(encoding === 'hex') { + this.accommodate(Math.ceil(bytes.length / 2)); + view = new Uint8Array(this.data.buffer, this.write); + this.write += util.binary.hex.decode(bytes, view, this.write); + return this; + } + if(encoding === 'base64') { + this.accommodate(Math.ceil(bytes.length / 4) * 3); + view = new Uint8Array(this.data.buffer, this.write); + this.write += util.binary.base64.decode(bytes, view, this.write); + return this; + } + + // encode text as UTF-8 bytes + if(encoding === 'utf8') { + // encode as UTF-8 then decode string as raw binary + bytes = util.encodeUtf8(bytes); + encoding = 'binary'; + } + + // decode string as raw binary + if(encoding === 'binary' || encoding === 'raw') { + // one byte per character + this.accommodate(bytes.length); + view = new Uint8Array(this.data.buffer, this.write); + this.write += util.binary.raw.decode(view); + return this; + } + + // encode text as UTF-16 bytes + if(encoding === 'utf16') { + // two bytes per character + this.accommodate(bytes.length * 2); + view = new Uint16Array(this.data.buffer, this.write); + this.write += util.text.utf16.encode(view); + return this; + } + + throw new Error('Invalid encoding: ' + encoding); + } + + throw Error('Invalid parameter: ' + bytes); +}; + +/** + * Puts the given buffer into this buffer. + * + * @param buffer the buffer to put into this one. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putBuffer = function(buffer) { + this.putBytes(buffer); + buffer.clear(); + return this; +}; + +/** + * Puts a string into this buffer. + * + * @param str the string to put. + * @param [encoding] the encoding for the string (default: 'utf16'). + * + * @return this buffer. + */ +util.DataBuffer.prototype.putString = function(str) { + return this.putBytes(str, 'utf16'); +}; + +/** + * Puts a 16-bit integer in this buffer in big-endian order. + * + * @param i the 16-bit integer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putInt16 = function(i) { + this.accommodate(2); + this.data.setInt16(this.write, i); + this.write += 2; + return this; +}; + +/** + * Puts a 24-bit integer in this buffer in big-endian order. + * + * @param i the 24-bit integer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putInt24 = function(i) { + this.accommodate(3); + this.data.setInt16(this.write, i >> 8 & 0xFFFF); + this.data.setInt8(this.write, i >> 16 & 0xFF); + this.write += 3; + return this; +}; + +/** + * Puts a 32-bit integer in this buffer in big-endian order. + * + * @param i the 32-bit integer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putInt32 = function(i) { + this.accommodate(4); + this.data.setInt32(this.write, i); + this.write += 4; + return this; +}; + +/** + * Puts a 16-bit integer in this buffer in little-endian order. + * + * @param i the 16-bit integer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putInt16Le = function(i) { + this.accommodate(2); + this.data.setInt16(this.write, i, true); + this.write += 2; + return this; +}; + +/** + * Puts a 24-bit integer in this buffer in little-endian order. + * + * @param i the 24-bit integer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putInt24Le = function(i) { + this.accommodate(3); + this.data.setInt8(this.write, i >> 16 & 0xFF); + this.data.setInt16(this.write, i >> 8 & 0xFFFF, true); + this.write += 3; + return this; +}; + +/** + * Puts a 32-bit integer in this buffer in little-endian order. + * + * @param i the 32-bit integer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putInt32Le = function(i) { + this.accommodate(4); + this.data.setInt32(this.write, i, true); + this.write += 4; + return this; +}; + +/** + * Puts an n-bit integer in this buffer in big-endian order. + * + * @param i the n-bit integer. + * @param n the number of bits in the integer (8, 16, 24, or 32). + * + * @return this buffer. + */ +util.DataBuffer.prototype.putInt = function(i, n) { + _checkBitsParam(n); + this.accommodate(n / 8); + do { + n -= 8; + this.data.setInt8(this.write++, (i >> n) & 0xFF); + } while(n > 0); + return this; +}; + +/** + * Puts a signed n-bit integer in this buffer in big-endian order. Two's + * complement representation is used. + * + * @param i the n-bit integer. + * @param n the number of bits in the integer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.putSignedInt = function(i, n) { + _checkBitsParam(n); + this.accommodate(n / 8); + if(i < 0) { + i += 2 << (n - 1); + } + return this.putInt(i, n); +}; + +/** + * Gets a byte from this buffer and advances the read pointer by 1. + * + * @return the byte. + */ +util.DataBuffer.prototype.getByte = function() { + return this.data.getInt8(this.read++); +}; + +/** + * Gets a uint16 from this buffer in big-endian order and advances the read + * pointer by 2. + * + * @return the uint16. + */ +util.DataBuffer.prototype.getInt16 = function() { + var rval = this.data.getInt16(this.read); + this.read += 2; + return rval; +}; + +/** + * Gets a uint24 from this buffer in big-endian order and advances the read + * pointer by 3. + * + * @return the uint24. + */ +util.DataBuffer.prototype.getInt24 = function() { + var rval = ( + this.data.getInt16(this.read) << 8 ^ + this.data.getInt8(this.read + 2)); + this.read += 3; + return rval; +}; + +/** + * Gets a uint32 from this buffer in big-endian order and advances the read + * pointer by 4. + * + * @return the word. + */ +util.DataBuffer.prototype.getInt32 = function() { + var rval = this.data.getInt32(this.read); + this.read += 4; + return rval; +}; + +/** + * Gets a uint16 from this buffer in little-endian order and advances the read + * pointer by 2. + * + * @return the uint16. + */ +util.DataBuffer.prototype.getInt16Le = function() { + var rval = this.data.getInt16(this.read, true); + this.read += 2; + return rval; +}; + +/** + * Gets a uint24 from this buffer in little-endian order and advances the read + * pointer by 3. + * + * @return the uint24. + */ +util.DataBuffer.prototype.getInt24Le = function() { + var rval = ( + this.data.getInt8(this.read) ^ + this.data.getInt16(this.read + 1, true) << 8); + this.read += 3; + return rval; +}; + +/** + * Gets a uint32 from this buffer in little-endian order and advances the read + * pointer by 4. + * + * @return the word. + */ +util.DataBuffer.prototype.getInt32Le = function() { + var rval = this.data.getInt32(this.read, true); + this.read += 4; + return rval; +}; + +/** + * Gets an n-bit integer from this buffer in big-endian order and advances the + * read pointer by n/8. + * + * @param n the number of bits in the integer (8, 16, 24, or 32). + * + * @return the integer. + */ +util.DataBuffer.prototype.getInt = function(n) { + _checkBitsParam(n); + var rval = 0; + do { + // TODO: Use (rval * 0x100) if adding support for 33 to 53 bits. + rval = (rval << 8) + this.data.getInt8(this.read++); + n -= 8; + } while(n > 0); + return rval; +}; + +/** + * Gets a signed n-bit integer from this buffer in big-endian order, using + * two's complement, and advances the read pointer by n/8. + * + * @param n the number of bits in the integer (8, 16, 24, or 32). + * + * @return the integer. + */ +util.DataBuffer.prototype.getSignedInt = function(n) { + // getInt checks n + var x = this.getInt(n); + var max = 2 << (n - 2); + if(x >= max) { + x -= max << 1; + } + return x; +}; + +/** + * Reads bytes out as a binary encoded string and clears them from the + * buffer. + * + * @param count the number of bytes to read, undefined or null for all. + * + * @return a binary encoded string of bytes. + */ +util.DataBuffer.prototype.getBytes = function(count) { + // TODO: deprecate this method, it is poorly named and + // this.toString('binary') replaces it + // add a toTypedArray()/toArrayBuffer() function + var rval; + if(count) { + // read count bytes + count = Math.min(this.length(), count); + rval = this.data.slice(this.read, this.read + count); + this.read += count; + } else if(count === 0) { + rval = ''; + } else { + // read all bytes, optimize to only copy when needed + rval = (this.read === 0) ? this.data : this.data.slice(this.read); + this.clear(); + } + return rval; +}; + +/** + * Gets a binary encoded string of the bytes from this buffer without + * modifying the read pointer. + * + * @param count the number of bytes to get, omit to get all. + * + * @return a string full of binary encoded characters. + */ +util.DataBuffer.prototype.bytes = function(count) { + // TODO: deprecate this method, it is poorly named, add "getString()" + return (typeof(count) === 'undefined' ? + this.data.slice(this.read) : + this.data.slice(this.read, this.read + count)); +}; + +/** + * Gets a byte at the given index without modifying the read pointer. + * + * @param i the byte index. + * + * @return the byte. + */ +util.DataBuffer.prototype.at = function(i) { + return this.data.getUint8(this.read + i); +}; + +/** + * Puts a byte at the given index without modifying the read pointer. + * + * @param i the byte index. + * @param b the byte to put. + * + * @return this buffer. + */ +util.DataBuffer.prototype.setAt = function(i, b) { + this.data.setUint8(i, b); + return this; +}; + +/** + * Gets the last byte without modifying the read pointer. + * + * @return the last byte. + */ +util.DataBuffer.prototype.last = function() { + return this.data.getUint8(this.write - 1); +}; + +/** + * Creates a copy of this buffer. + * + * @return the copy. + */ +util.DataBuffer.prototype.copy = function() { + return new util.DataBuffer(this); +}; + +/** + * Compacts this buffer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.compact = function() { + if(this.read > 0) { + var src = new Uint8Array(this.data.buffer, this.read); + var dst = new Uint8Array(src.byteLength); + dst.set(src); + this.data = new DataView(dst); + this.write -= this.read; + this.read = 0; + } + return this; +}; + +/** + * Clears this buffer. + * + * @return this buffer. + */ +util.DataBuffer.prototype.clear = function() { + this.data = new DataView(new ArrayBuffer(0)); + this.read = this.write = 0; + return this; +}; + +/** + * Shortens this buffer by triming bytes off of the end of this buffer. + * + * @param count the number of bytes to trim off. + * + * @return this buffer. + */ +util.DataBuffer.prototype.truncate = function(count) { + this.write = Math.max(0, this.length() - count); + this.read = Math.min(this.read, this.write); + return this; +}; + +/** + * Converts this buffer to a hexadecimal string. + * + * @return a hexadecimal string. + */ +util.DataBuffer.prototype.toHex = function() { + var rval = ''; + for(var i = this.read; i < this.data.byteLength; ++i) { + var b = this.data.getUint8(i); + if(b < 16) { + rval += '0'; + } + rval += b.toString(16); + } + return rval; +}; + +/** + * Converts this buffer to a string, using the given encoding. If no + * encoding is given, 'utf8' (UTF-8) is used. + * + * @param [encoding] the encoding to use: 'binary', 'utf8', 'utf16', 'hex', + * 'base64' (default: 'utf8'). + * + * @return a string representation of the bytes in this buffer. + */ +util.DataBuffer.prototype.toString = function(encoding) { + var view = new Uint8Array(this.data, this.read, this.length()); + encoding = encoding || 'utf8'; + + // encode to string + if(encoding === 'binary' || encoding === 'raw') { + return util.binary.raw.encode(view); + } + if(encoding === 'hex') { + return util.binary.hex.encode(view); + } + if(encoding === 'base64') { + return util.binary.base64.encode(view); + } + + // decode to text + if(encoding === 'utf8') { + return util.text.utf8.decode(view); + } + if(encoding === 'utf16') { + return util.text.utf16.decode(view); + } + + throw new Error('Invalid encoding: ' + encoding); +}; + +/** End Buffer w/UInt8Array backing */ + +/** + * Creates a buffer that stores bytes. A value may be given to populate the + * buffer with data. This value can either be string of encoded bytes or a + * regular string of characters. When passing a string of binary encoded + * bytes, the encoding `raw` should be given. This is also the default. When + * passing a string of characters, the encoding `utf8` should be given. + * + * @param [input] a string with encoded bytes to store in the buffer. + * @param [encoding] (default: 'raw', other: 'utf8'). + */ +util.createBuffer = function(input, encoding) { + // TODO: deprecate, use new ByteBuffer() instead + encoding = encoding || 'raw'; + if(input !== undefined && encoding === 'utf8') { + input = util.encodeUtf8(input); + } + return new util.ByteBuffer(input); +}; + +/** + * Fills a string with a particular value. If you want the string to be a byte + * string, pass in String.fromCharCode(theByte). + * + * @param c the character to fill the string with, use String.fromCharCode + * to fill the string with a byte value. + * @param n the number of characters of value c to fill with. + * + * @return the filled string. + */ +util.fillString = function(c, n) { + var s = ''; + while(n > 0) { + if(n & 1) { + s += c; + } + n >>>= 1; + if(n > 0) { + c += c; + } + } + return s; +}; + +/** + * Performs a per byte XOR between two byte strings and returns the result as a + * string of bytes. + * + * @param s1 first string of bytes. + * @param s2 second string of bytes. + * @param n the number of bytes to XOR. + * + * @return the XOR'd result. + */ +util.xorBytes = function(s1, s2, n) { + var s3 = ''; + var b = ''; + var t = ''; + var i = 0; + var c = 0; + for(; n > 0; --n, ++i) { + b = s1.charCodeAt(i) ^ s2.charCodeAt(i); + if(c >= 10) { + s3 += t; + t = ''; + c = 0; + } + t += String.fromCharCode(b); + ++c; + } + s3 += t; + return s3; +}; + +/** + * Converts a hex string into a 'binary' encoded string of bytes. + * + * @param hex the hexadecimal string to convert. + * + * @return the binary-encoded string of bytes. + */ +util.hexToBytes = function(hex) { + // TODO: deprecate: "Deprecated. Use util.binary.hex.decode instead." + var rval = ''; + var i = 0; + if(hex.length & 1 == 1) { + // odd number of characters, convert first character alone + i = 1; + rval += String.fromCharCode(parseInt(hex[0], 16)); + } + // convert 2 characters (1 byte) at a time + for(; i < hex.length; i += 2) { + rval += String.fromCharCode(parseInt(hex.substr(i, 2), 16)); + } + return rval; +}; + +/** + * Converts a 'binary' encoded string of bytes to hex. + * + * @param bytes the byte string to convert. + * + * @return the string of hexadecimal characters. + */ +util.bytesToHex = function(bytes) { + // TODO: deprecate: "Deprecated. Use util.binary.hex.encode instead." + return util.createBuffer(bytes).toHex(); +}; + +/** + * Converts an 32-bit integer to 4-big-endian byte string. + * + * @param i the integer. + * + * @return the byte string. + */ +util.int32ToBytes = function(i) { + return ( + String.fromCharCode(i >> 24 & 0xFF) + + String.fromCharCode(i >> 16 & 0xFF) + + String.fromCharCode(i >> 8 & 0xFF) + + String.fromCharCode(i & 0xFF)); +}; + +// base64 characters, reverse mapping +var _base64 = + 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='; +var _base64Idx = [ +/*43 -43 = 0*/ +/*'+', 1, 2, 3,'/' */ + 62, -1, -1, -1, 63, + +/*'0','1','2','3','4','5','6','7','8','9' */ + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, + +/*15, 16, 17,'=', 19, 20, 21 */ + -1, -1, -1, 64, -1, -1, -1, + +/*65 - 43 = 22*/ +/*'A','B','C','D','E','F','G','H','I','J','K','L','M', */ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, + +/*'N','O','P','Q','R','S','T','U','V','W','X','Y','Z' */ + 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, + +/*91 - 43 = 48 */ +/*48, 49, 50, 51, 52, 53 */ + -1, -1, -1, -1, -1, -1, + +/*97 - 43 = 54*/ +/*'a','b','c','d','e','f','g','h','i','j','k','l','m' */ + 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, + +/*'n','o','p','q','r','s','t','u','v','w','x','y','z' */ + 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 +]; + +// base58 characters (Bitcoin alphabet) +var _base58 = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'; + +/** + * Base64 encodes a 'binary' encoded string of bytes. + * + * @param input the binary encoded string of bytes to base64-encode. + * @param maxline the maximum number of encoded characters per line to use, + * defaults to none. + * + * @return the base64-encoded output. + */ +util.encode64 = function(input, maxline) { + // TODO: deprecate: "Deprecated. Use util.binary.base64.encode instead." + var line = ''; + var output = ''; + var chr1, chr2, chr3; + var i = 0; + while(i < input.length) { + chr1 = input.charCodeAt(i++); + chr2 = input.charCodeAt(i++); + chr3 = input.charCodeAt(i++); + + // encode 4 character group + line += _base64.charAt(chr1 >> 2); + line += _base64.charAt(((chr1 & 3) << 4) | (chr2 >> 4)); + if(isNaN(chr2)) { + line += '=='; + } else { + line += _base64.charAt(((chr2 & 15) << 2) | (chr3 >> 6)); + line += isNaN(chr3) ? '=' : _base64.charAt(chr3 & 63); + } + + if(maxline && line.length > maxline) { + output += line.substr(0, maxline) + '\r\n'; + line = line.substr(maxline); + } + } + output += line; + return output; +}; + +/** + * Base64 decodes a string into a 'binary' encoded string of bytes. + * + * @param input the base64-encoded input. + * + * @return the binary encoded string. + */ +util.decode64 = function(input) { + // TODO: deprecate: "Deprecated. Use util.binary.base64.decode instead." + + // remove all non-base64 characters + input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ''); + + var output = ''; + var enc1, enc2, enc3, enc4; + var i = 0; + + while(i < input.length) { + enc1 = _base64Idx[input.charCodeAt(i++) - 43]; + enc2 = _base64Idx[input.charCodeAt(i++) - 43]; + enc3 = _base64Idx[input.charCodeAt(i++) - 43]; + enc4 = _base64Idx[input.charCodeAt(i++) - 43]; + + output += String.fromCharCode((enc1 << 2) | (enc2 >> 4)); + if(enc3 !== 64) { + // decoded at least 2 bytes + output += String.fromCharCode(((enc2 & 15) << 4) | (enc3 >> 2)); + if(enc4 !== 64) { + // decoded 3 bytes + output += String.fromCharCode(((enc3 & 3) << 6) | enc4); + } + } + } + + return output; +}; + +/** + * Encodes the given string of characters (a standard JavaScript + * string) as a binary encoded string where the bytes represent + * a UTF-8 encoded string of characters. Non-ASCII characters will be + * encoded as multiple bytes according to UTF-8. + * + * @param str a standard string of characters to encode. + * + * @return the binary encoded string. + */ +util.encodeUtf8 = function(str) { + return unescape(encodeURIComponent(str)); +}; + +/** + * Decodes a binary encoded string that contains bytes that + * represent a UTF-8 encoded string of characters -- into a + * string of characters (a standard JavaScript string). + * + * @param str the binary encoded string to decode. + * + * @return the resulting standard string of characters. + */ +util.decodeUtf8 = function(str) { + return decodeURIComponent(escape(str)); +}; + +// binary encoding/decoding tools +// FIXME: Experimental. Do not use yet. +util.binary = { + raw: {}, + hex: {}, + base64: {}, + base58: {}, + baseN : { + encode: baseN.encode, + decode: baseN.decode + } +}; + +/** + * Encodes a Uint8Array as a binary-encoded string. This encoding uses + * a value between 0 and 255 for each character. + * + * @param bytes the Uint8Array to encode. + * + * @return the binary-encoded string. + */ +util.binary.raw.encode = function(bytes) { + return String.fromCharCode.apply(null, bytes); +}; + +/** + * Decodes a binary-encoded string to a Uint8Array. This encoding uses + * a value between 0 and 255 for each character. + * + * @param str the binary-encoded string to decode. + * @param [output] an optional Uint8Array to write the output to; if it + * is too small, an exception will be thrown. + * @param [offset] the start offset for writing to the output (default: 0). + * + * @return the Uint8Array or the number of bytes written if output was given. + */ +util.binary.raw.decode = function(str, output, offset) { + var out = output; + if(!out) { + out = new Uint8Array(str.length); + } + offset = offset || 0; + var j = offset; + for(var i = 0; i < str.length; ++i) { + out[j++] = str.charCodeAt(i); + } + return output ? (j - offset) : out; +}; + +/** + * Encodes a 'binary' string, ArrayBuffer, DataView, TypedArray, or + * ByteBuffer as a string of hexadecimal characters. + * + * @param bytes the bytes to convert. + * + * @return the string of hexadecimal characters. + */ +util.binary.hex.encode = util.bytesToHex; + +/** + * Decodes a hex-encoded string to a Uint8Array. + * + * @param hex the hexadecimal string to convert. + * @param [output] an optional Uint8Array to write the output to; if it + * is too small, an exception will be thrown. + * @param [offset] the start offset for writing to the output (default: 0). + * + * @return the Uint8Array or the number of bytes written if output was given. + */ +util.binary.hex.decode = function(hex, output, offset) { + var out = output; + if(!out) { + out = new Uint8Array(Math.ceil(hex.length / 2)); + } + offset = offset || 0; + var i = 0, j = offset; + if(hex.length & 1) { + // odd number of characters, convert first character alone + i = 1; + out[j++] = parseInt(hex[0], 16); + } + // convert 2 characters (1 byte) at a time + for(; i < hex.length; i += 2) { + out[j++] = parseInt(hex.substr(i, 2), 16); + } + return output ? (j - offset) : out; +}; + +/** + * Base64-encodes a Uint8Array. + * + * @param input the Uint8Array to encode. + * @param maxline the maximum number of encoded characters per line to use, + * defaults to none. + * + * @return the base64-encoded output string. + */ +util.binary.base64.encode = function(input, maxline) { + var line = ''; + var output = ''; + var chr1, chr2, chr3; + var i = 0; + while(i < input.byteLength) { + chr1 = input[i++]; + chr2 = input[i++]; + chr3 = input[i++]; + + // encode 4 character group + line += _base64.charAt(chr1 >> 2); + line += _base64.charAt(((chr1 & 3) << 4) | (chr2 >> 4)); + if(isNaN(chr2)) { + line += '=='; + } else { + line += _base64.charAt(((chr2 & 15) << 2) | (chr3 >> 6)); + line += isNaN(chr3) ? '=' : _base64.charAt(chr3 & 63); + } + + if(maxline && line.length > maxline) { + output += line.substr(0, maxline) + '\r\n'; + line = line.substr(maxline); + } + } + output += line; + return output; +}; + +/** + * Decodes a base64-encoded string to a Uint8Array. + * + * @param input the base64-encoded input string. + * @param [output] an optional Uint8Array to write the output to; if it + * is too small, an exception will be thrown. + * @param [offset] the start offset for writing to the output (default: 0). + * + * @return the Uint8Array or the number of bytes written if output was given. + */ +util.binary.base64.decode = function(input, output, offset) { + var out = output; + if(!out) { + out = new Uint8Array(Math.ceil(input.length / 4) * 3); + } + + // remove all non-base64 characters + input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ''); + + offset = offset || 0; + var enc1, enc2, enc3, enc4; + var i = 0, j = offset; + + while(i < input.length) { + enc1 = _base64Idx[input.charCodeAt(i++) - 43]; + enc2 = _base64Idx[input.charCodeAt(i++) - 43]; + enc3 = _base64Idx[input.charCodeAt(i++) - 43]; + enc4 = _base64Idx[input.charCodeAt(i++) - 43]; + + out[j++] = (enc1 << 2) | (enc2 >> 4); + if(enc3 !== 64) { + // decoded at least 2 bytes + out[j++] = ((enc2 & 15) << 4) | (enc3 >> 2); + if(enc4 !== 64) { + // decoded 3 bytes + out[j++] = ((enc3 & 3) << 6) | enc4; + } + } + } + + // make sure result is the exact decoded length + return output ? (j - offset) : out.subarray(0, j); +}; + +// add support for base58 encoding/decoding with Bitcoin alphabet +util.binary.base58.encode = function(input, maxline) { + return util.binary.baseN.encode(input, _base58, maxline); +}; +util.binary.base58.decode = function(input, maxline) { + return util.binary.baseN.decode(input, _base58, maxline); +}; + +// text encoding/decoding tools +// FIXME: Experimental. Do not use yet. +util.text = { + utf8: {}, + utf16: {} +}; + +/** + * Encodes the given string as UTF-8 in a Uint8Array. + * + * @param str the string to encode. + * @param [output] an optional Uint8Array to write the output to; if it + * is too small, an exception will be thrown. + * @param [offset] the start offset for writing to the output (default: 0). + * + * @return the Uint8Array or the number of bytes written if output was given. + */ +util.text.utf8.encode = function(str, output, offset) { + str = util.encodeUtf8(str); + var out = output; + if(!out) { + out = new Uint8Array(str.length); + } + offset = offset || 0; + var j = offset; + for(var i = 0; i < str.length; ++i) { + out[j++] = str.charCodeAt(i); + } + return output ? (j - offset) : out; +}; + +/** + * Decodes the UTF-8 contents from a Uint8Array. + * + * @param bytes the Uint8Array to decode. + * + * @return the resulting string. + */ +util.text.utf8.decode = function(bytes) { + return util.decodeUtf8(String.fromCharCode.apply(null, bytes)); +}; + +/** + * Encodes the given string as UTF-16 in a Uint8Array. + * + * @param str the string to encode. + * @param [output] an optional Uint8Array to write the output to; if it + * is too small, an exception will be thrown. + * @param [offset] the start offset for writing to the output (default: 0). + * + * @return the Uint8Array or the number of bytes written if output was given. + */ +util.text.utf16.encode = function(str, output, offset) { + var out = output; + if(!out) { + out = new Uint8Array(str.length * 2); + } + var view = new Uint16Array(out.buffer); + offset = offset || 0; + var j = offset; + var k = offset; + for(var i = 0; i < str.length; ++i) { + view[k++] = str.charCodeAt(i); + j += 2; + } + return output ? (j - offset) : out; +}; + +/** + * Decodes the UTF-16 contents from a Uint8Array. + * + * @param bytes the Uint8Array to decode. + * + * @return the resulting string. + */ +util.text.utf16.decode = function(bytes) { + return String.fromCharCode.apply(null, new Uint16Array(bytes.buffer)); +}; + +/** + * Deflates the given data using a flash interface. + * + * @param api the flash interface. + * @param bytes the data. + * @param raw true to return only raw deflate data, false to include zlib + * header and trailer. + * + * @return the deflated data as a string. + */ +util.deflate = function(api, bytes, raw) { + bytes = util.decode64(api.deflate(util.encode64(bytes)).rval); + + // strip zlib header and trailer if necessary + if(raw) { + // zlib header is 2 bytes (CMF,FLG) where FLG indicates that + // there is a 4-byte DICT (alder-32) block before the data if + // its 5th bit is set + var start = 2; + var flg = bytes.charCodeAt(1); + if(flg & 0x20) { + start = 6; + } + // zlib trailer is 4 bytes of adler-32 + bytes = bytes.substring(start, bytes.length - 4); + } + + return bytes; +}; + +/** + * Inflates the given data using a flash interface. + * + * @param api the flash interface. + * @param bytes the data. + * @param raw true if the incoming data has no zlib header or trailer and is + * raw DEFLATE data. + * + * @return the inflated data as a string, null on error. + */ +util.inflate = function(api, bytes, raw) { + // TODO: add zlib header and trailer if necessary/possible + var rval = api.inflate(util.encode64(bytes)).rval; + return (rval === null) ? null : util.decode64(rval); +}; + +/** + * Sets a storage object. + * + * @param api the storage interface. + * @param id the storage ID to use. + * @param obj the storage object, null to remove. + */ +var _setStorageObject = function(api, id, obj) { + if(!api) { + throw new Error('WebStorage not available.'); + } + + var rval; + if(obj === null) { + rval = api.removeItem(id); + } else { + // json-encode and base64-encode object + obj = util.encode64(JSON.stringify(obj)); + rval = api.setItem(id, obj); + } + + // handle potential flash error + if(typeof(rval) !== 'undefined' && rval.rval !== true) { + var error = new Error(rval.error.message); + error.id = rval.error.id; + error.name = rval.error.name; + throw error; + } +}; + +/** + * Gets a storage object. + * + * @param api the storage interface. + * @param id the storage ID to use. + * + * @return the storage object entry or null if none exists. + */ +var _getStorageObject = function(api, id) { + if(!api) { + throw new Error('WebStorage not available.'); + } + + // get the existing entry + var rval = api.getItem(id); + + /* Note: We check api.init because we can't do (api == localStorage) + on IE because of "Class doesn't support Automation" exception. Only + the flash api has an init method so this works too, but we need a + better solution in the future. */ + + // flash returns item wrapped in an object, handle special case + if(api.init) { + if(rval.rval === null) { + if(rval.error) { + var error = new Error(rval.error.message); + error.id = rval.error.id; + error.name = rval.error.name; + throw error; + } + // no error, but also no item + rval = null; + } else { + rval = rval.rval; + } + } + + // handle decoding + if(rval !== null) { + // base64-decode and json-decode data + rval = JSON.parse(util.decode64(rval)); + } + + return rval; +}; + +/** + * Stores an item in local storage. + * + * @param api the storage interface. + * @param id the storage ID to use. + * @param key the key for the item. + * @param data the data for the item (any javascript object/primitive). + */ +var _setItem = function(api, id, key, data) { + // get storage object + var obj = _getStorageObject(api, id); + if(obj === null) { + // create a new storage object + obj = {}; + } + // update key + obj[key] = data; + + // set storage object + _setStorageObject(api, id, obj); +}; + +/** + * Gets an item from local storage. + * + * @param api the storage interface. + * @param id the storage ID to use. + * @param key the key for the item. + * + * @return the item. + */ +var _getItem = function(api, id, key) { + // get storage object + var rval = _getStorageObject(api, id); + if(rval !== null) { + // return data at key + rval = (key in rval) ? rval[key] : null; + } + + return rval; +}; + +/** + * Removes an item from local storage. + * + * @param api the storage interface. + * @param id the storage ID to use. + * @param key the key for the item. + */ +var _removeItem = function(api, id, key) { + // get storage object + var obj = _getStorageObject(api, id); + if(obj !== null && key in obj) { + // remove key + delete obj[key]; + + // see if entry has no keys remaining + var empty = true; + for(var prop in obj) { + empty = false; + break; + } + if(empty) { + // remove entry entirely if no keys are left + obj = null; + } + + // set storage object + _setStorageObject(api, id, obj); + } +}; + +/** + * Clears the local disk storage identified by the given ID. + * + * @param api the storage interface. + * @param id the storage ID to use. + */ +var _clearItems = function(api, id) { + _setStorageObject(api, id, null); +}; + +/** + * Calls a storage function. + * + * @param func the function to call. + * @param args the arguments for the function. + * @param location the location argument. + * + * @return the return value from the function. + */ +var _callStorageFunction = function(func, args, location) { + var rval = null; + + // default storage types + if(typeof(location) === 'undefined') { + location = ['web', 'flash']; + } + + // apply storage types in order of preference + var type; + var done = false; + var exception = null; + for(var idx in location) { + type = location[idx]; + try { + if(type === 'flash' || type === 'both') { + if(args[0] === null) { + throw new Error('Flash local storage not available.'); + } + rval = func.apply(this, args); + done = (type === 'flash'); + } + if(type === 'web' || type === 'both') { + args[0] = localStorage; + rval = func.apply(this, args); + done = true; + } + } catch(ex) { + exception = ex; + } + if(done) { + break; + } + } + + if(!done) { + throw exception; + } + + return rval; +}; + +/** + * Stores an item on local disk. + * + * The available types of local storage include 'flash', 'web', and 'both'. + * + * The type 'flash' refers to flash local storage (SharedObject). In order + * to use flash local storage, the 'api' parameter must be valid. The type + * 'web' refers to WebStorage, if supported by the browser. The type 'both' + * refers to storing using both 'flash' and 'web', not just one or the + * other. + * + * The location array should list the storage types to use in order of + * preference: + * + * ['flash']: flash only storage + * ['web']: web only storage + * ['both']: try to store in both + * ['flash','web']: store in flash first, but if not available, 'web' + * ['web','flash']: store in web first, but if not available, 'flash' + * + * The location array defaults to: ['web', 'flash'] + * + * @param api the flash interface, null to use only WebStorage. + * @param id the storage ID to use. + * @param key the key for the item. + * @param data the data for the item (any javascript object/primitive). + * @param location an array with the preferred types of storage to use. + */ +util.setItem = function(api, id, key, data, location) { + _callStorageFunction(_setItem, arguments, location); +}; + +/** + * Gets an item on local disk. + * + * Set setItem() for details on storage types. + * + * @param api the flash interface, null to use only WebStorage. + * @param id the storage ID to use. + * @param key the key for the item. + * @param location an array with the preferred types of storage to use. + * + * @return the item. + */ +util.getItem = function(api, id, key, location) { + return _callStorageFunction(_getItem, arguments, location); +}; + +/** + * Removes an item on local disk. + * + * Set setItem() for details on storage types. + * + * @param api the flash interface. + * @param id the storage ID to use. + * @param key the key for the item. + * @param location an array with the preferred types of storage to use. + */ +util.removeItem = function(api, id, key, location) { + _callStorageFunction(_removeItem, arguments, location); +}; + +/** + * Clears the local disk storage identified by the given ID. + * + * Set setItem() for details on storage types. + * + * @param api the flash interface if flash is available. + * @param id the storage ID to use. + * @param location an array with the preferred types of storage to use. + */ +util.clearItems = function(api, id, location) { + _callStorageFunction(_clearItems, arguments, location); +}; + +/** + * Check if an object is empty. + * + * Taken from: + * http://stackoverflow.com/questions/679915/how-do-i-test-for-an-empty-javascript-object-from-json/679937#679937 + * + * @param object the object to check. + */ +util.isEmpty = function(obj) { + for(var prop in obj) { + if(obj.hasOwnProperty(prop)) { + return false; + } + } + return true; +}; + +/** + * Format with simple printf-style interpolation. + * + * %%: literal '%' + * %s,%o: convert next argument into a string. + * + * @param format the string to format. + * @param ... arguments to interpolate into the format string. + */ +util.format = function(format) { + var re = /%./g; + // current match + var match; + // current part + var part; + // current arg index + var argi = 0; + // collected parts to recombine later + var parts = []; + // last index found + var last = 0; + // loop while matches remain + while((match = re.exec(format))) { + part = format.substring(last, re.lastIndex - 2); + // don't add empty strings (ie, parts between %s%s) + if(part.length > 0) { + parts.push(part); + } + last = re.lastIndex; + // switch on % code + var code = match[0][1]; + switch(code) { + case 's': + case 'o': + // check if enough arguments were given + if(argi < arguments.length) { + parts.push(arguments[argi++ + 1]); + } else { + parts.push(''); + } + break; + // FIXME: do proper formating for numbers, etc + //case 'f': + //case 'd': + case '%': + parts.push('%'); + break; + default: + parts.push('<%' + code + '?>'); + } + } + // add trailing part of format string + parts.push(format.substring(last)); + return parts.join(''); +}; + +/** + * Formats a number. + * + * http://snipplr.com/view/5945/javascript-numberformat--ported-from-php/ + */ +util.formatNumber = function(number, decimals, dec_point, thousands_sep) { + // http://kevin.vanzonneveld.net + // + original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com) + // + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net) + // + bugfix by: Michael White (http://crestidg.com) + // + bugfix by: Benjamin Lupton + // + bugfix by: Allan Jensen (http://www.winternet.no) + // + revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com) + // * example 1: number_format(1234.5678, 2, '.', ''); + // * returns 1: 1234.57 + + var n = number, c = isNaN(decimals = Math.abs(decimals)) ? 2 : decimals; + var d = dec_point === undefined ? ',' : dec_point; + var t = thousands_sep === undefined ? + '.' : thousands_sep, s = n < 0 ? '-' : ''; + var i = parseInt((n = Math.abs(+n || 0).toFixed(c)), 10) + ''; + var j = (i.length > 3) ? i.length % 3 : 0; + return s + (j ? i.substr(0, j) + t : '') + + i.substr(j).replace(/(\d{3})(?=\d)/g, '$1' + t) + + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : ''); +}; + +/** + * Formats a byte size. + * + * http://snipplr.com/view/5949/format-humanize-file-byte-size-presentation-in-javascript/ + */ +util.formatSize = function(size) { + if(size >= 1073741824) { + size = util.formatNumber(size / 1073741824, 2, '.', '') + ' GiB'; + } else if(size >= 1048576) { + size = util.formatNumber(size / 1048576, 2, '.', '') + ' MiB'; + } else if(size >= 1024) { + size = util.formatNumber(size / 1024, 0) + ' KiB'; + } else { + size = util.formatNumber(size, 0) + ' bytes'; + } + return size; +}; + +/** + * Converts an IPv4 or IPv6 string representation into bytes (in network order). + * + * @param ip the IPv4 or IPv6 address to convert. + * + * @return the 4-byte IPv6 or 16-byte IPv6 address or null if the address can't + * be parsed. + */ +util.bytesFromIP = function(ip) { + if(ip.indexOf('.') !== -1) { + return util.bytesFromIPv4(ip); + } + if(ip.indexOf(':') !== -1) { + return util.bytesFromIPv6(ip); + } + return null; +}; + +/** + * Converts an IPv4 string representation into bytes (in network order). + * + * @param ip the IPv4 address to convert. + * + * @return the 4-byte address or null if the address can't be parsed. + */ +util.bytesFromIPv4 = function(ip) { + ip = ip.split('.'); + if(ip.length !== 4) { + return null; + } + var b = util.createBuffer(); + for(var i = 0; i < ip.length; ++i) { + var num = parseInt(ip[i], 10); + if(isNaN(num)) { + return null; + } + b.putByte(num); + } + return b.getBytes(); +}; + +/** + * Converts an IPv6 string representation into bytes (in network order). + * + * @param ip the IPv6 address to convert. + * + * @return the 16-byte address or null if the address can't be parsed. + */ +util.bytesFromIPv6 = function(ip) { + var blanks = 0; + ip = ip.split(':').filter(function(e) { + if(e.length === 0) ++blanks; + return true; + }); + var zeros = (8 - ip.length + blanks) * 2; + var b = util.createBuffer(); + for(var i = 0; i < 8; ++i) { + if(!ip[i] || ip[i].length === 0) { + b.fillWithByte(0, zeros); + zeros = 0; + continue; + } + var bytes = util.hexToBytes(ip[i]); + if(bytes.length < 2) { + b.putByte(0); + } + b.putBytes(bytes); + } + return b.getBytes(); +}; + +/** + * Converts 4-bytes into an IPv4 string representation or 16-bytes into + * an IPv6 string representation. The bytes must be in network order. + * + * @param bytes the bytes to convert. + * + * @return the IPv4 or IPv6 string representation if 4 or 16 bytes, + * respectively, are given, otherwise null. + */ +util.bytesToIP = function(bytes) { + if(bytes.length === 4) { + return util.bytesToIPv4(bytes); + } + if(bytes.length === 16) { + return util.bytesToIPv6(bytes); + } + return null; +}; + +/** + * Converts 4-bytes into an IPv4 string representation. The bytes must be + * in network order. + * + * @param bytes the bytes to convert. + * + * @return the IPv4 string representation or null for an invalid # of bytes. + */ +util.bytesToIPv4 = function(bytes) { + if(bytes.length !== 4) { + return null; + } + var ip = []; + for(var i = 0; i < bytes.length; ++i) { + ip.push(bytes.charCodeAt(i)); + } + return ip.join('.'); +}; + +/** + * Converts 16-bytes into an IPv16 string representation. The bytes must be + * in network order. + * + * @param bytes the bytes to convert. + * + * @return the IPv16 string representation or null for an invalid # of bytes. + */ +util.bytesToIPv6 = function(bytes) { + if(bytes.length !== 16) { + return null; + } + var ip = []; + var zeroGroups = []; + var zeroMaxGroup = 0; + for(var i = 0; i < bytes.length; i += 2) { + var hex = util.bytesToHex(bytes[i] + bytes[i + 1]); + // canonicalize zero representation + while(hex[0] === '0' && hex !== '0') { + hex = hex.substr(1); + } + if(hex === '0') { + var last = zeroGroups[zeroGroups.length - 1]; + var idx = ip.length; + if(!last || idx !== last.end + 1) { + zeroGroups.push({start: idx, end: idx}); + } else { + last.end = idx; + if((last.end - last.start) > + (zeroGroups[zeroMaxGroup].end - zeroGroups[zeroMaxGroup].start)) { + zeroMaxGroup = zeroGroups.length - 1; + } + } + } + ip.push(hex); + } + if(zeroGroups.length > 0) { + var group = zeroGroups[zeroMaxGroup]; + // only shorten group of length > 0 + if(group.end - group.start > 0) { + ip.splice(group.start, group.end - group.start + 1, ''); + if(group.start === 0) { + ip.unshift(''); + } + if(group.end === 7) { + ip.push(''); + } + } + } + return ip.join(':'); +}; + +/** + * Estimates the number of processes that can be run concurrently. If + * creating Web Workers, keep in mind that the main JavaScript process needs + * its own core. + * + * @param options the options to use: + * update true to force an update (not use the cached value). + * @param callback(err, max) called once the operation completes. + */ +util.estimateCores = function(options, callback) { + if(typeof options === 'function') { + callback = options; + options = {}; + } + options = options || {}; + if('cores' in util && !options.update) { + return callback(null, util.cores); + } + if(typeof navigator !== 'undefined' && + 'hardwareConcurrency' in navigator && + navigator.hardwareConcurrency > 0) { + util.cores = navigator.hardwareConcurrency; + return callback(null, util.cores); + } + if(typeof Worker === 'undefined') { + // workers not available + util.cores = 1; + return callback(null, util.cores); + } + if(typeof Blob === 'undefined') { + // can't estimate, default to 2 + util.cores = 2; + return callback(null, util.cores); + } + + // create worker concurrency estimation code as blob + var blobUrl = URL.createObjectURL(new Blob(['(', + function() { + self.addEventListener('message', function(e) { + // run worker for 4 ms + var st = Date.now(); + var et = st + 4; + while(Date.now() < et); + self.postMessage({st: st, et: et}); + }); + }.toString(), + ')()'], {type: 'application/javascript'})); + + // take 5 samples using 16 workers + sample([], 5, 16); + + function sample(max, samples, numWorkers) { + if(samples === 0) { + // get overlap average + var avg = Math.floor(max.reduce(function(avg, x) { + return avg + x; + }, 0) / max.length); + util.cores = Math.max(1, avg); + URL.revokeObjectURL(blobUrl); + return callback(null, util.cores); + } + map(numWorkers, function(err, results) { + max.push(reduce(numWorkers, results)); + sample(max, samples - 1, numWorkers); + }); + } + + function map(numWorkers, callback) { + var workers = []; + var results = []; + for(var i = 0; i < numWorkers; ++i) { + var worker = new Worker(blobUrl); + worker.addEventListener('message', function(e) { + results.push(e.data); + if(results.length === numWorkers) { + for(var i = 0; i < numWorkers; ++i) { + workers[i].terminate(); + } + callback(null, results); + } + }); + workers.push(worker); + } + for(var i = 0; i < numWorkers; ++i) { + workers[i].postMessage(i); + } + } + + function reduce(numWorkers, results) { + // find overlapping time windows + var overlaps = []; + for(var n = 0; n < numWorkers; ++n) { + var r1 = results[n]; + var overlap = overlaps[n] = []; + for(var i = 0; i < numWorkers; ++i) { + if(n === i) { + continue; + } + var r2 = results[i]; + if((r1.st > r2.st && r1.st < r2.et) || + (r2.st > r1.st && r2.st < r1.et)) { + overlap.push(i); + } + } + } + // get maximum overlaps ... don't include overlapping worker itself + // as the main JS process was also being scheduled during the work and + // would have to be subtracted from the estimate anyway + return overlaps.reduce(function(max, overlap) { + return Math.max(max, overlap.length); + }, 0); + } +}; diff --git a/node_modules/node-forge/lib/x509.js b/node_modules/node-forge/lib/x509.js new file mode 100644 index 0000000..2877810 --- /dev/null +++ b/node_modules/node-forge/lib/x509.js @@ -0,0 +1,3242 @@ +/** + * Javascript implementation of X.509 and related components (such as + * Certification Signing Requests) of a Public Key Infrastructure. + * + * @author Dave Longley + * + * Copyright (c) 2010-2014 Digital Bazaar, Inc. + * + * The ASN.1 representation of an X.509v3 certificate is as follows + * (see RFC 2459): + * + * Certificate ::= SEQUENCE { + * tbsCertificate TBSCertificate, + * signatureAlgorithm AlgorithmIdentifier, + * signatureValue BIT STRING + * } + * + * TBSCertificate ::= SEQUENCE { + * version [0] EXPLICIT Version DEFAULT v1, + * serialNumber CertificateSerialNumber, + * signature AlgorithmIdentifier, + * issuer Name, + * validity Validity, + * subject Name, + * subjectPublicKeyInfo SubjectPublicKeyInfo, + * issuerUniqueID [1] IMPLICIT UniqueIdentifier OPTIONAL, + * -- If present, version shall be v2 or v3 + * subjectUniqueID [2] IMPLICIT UniqueIdentifier OPTIONAL, + * -- If present, version shall be v2 or v3 + * extensions [3] EXPLICIT Extensions OPTIONAL + * -- If present, version shall be v3 + * } + * + * Version ::= INTEGER { v1(0), v2(1), v3(2) } + * + * CertificateSerialNumber ::= INTEGER + * + * Name ::= CHOICE { + * // only one possible choice for now + * RDNSequence + * } + * + * RDNSequence ::= SEQUENCE OF RelativeDistinguishedName + * + * RelativeDistinguishedName ::= SET OF AttributeTypeAndValue + * + * AttributeTypeAndValue ::= SEQUENCE { + * type AttributeType, + * value AttributeValue + * } + * AttributeType ::= OBJECT IDENTIFIER + * AttributeValue ::= ANY DEFINED BY AttributeType + * + * Validity ::= SEQUENCE { + * notBefore Time, + * notAfter Time + * } + * + * Time ::= CHOICE { + * utcTime UTCTime, + * generalTime GeneralizedTime + * } + * + * UniqueIdentifier ::= BIT STRING + * + * SubjectPublicKeyInfo ::= SEQUENCE { + * algorithm AlgorithmIdentifier, + * subjectPublicKey BIT STRING + * } + * + * Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension + * + * Extension ::= SEQUENCE { + * extnID OBJECT IDENTIFIER, + * critical BOOLEAN DEFAULT FALSE, + * extnValue OCTET STRING + * } + * + * The only key algorithm currently supported for PKI is RSA. + * + * RSASSA-PSS signatures are described in RFC 3447 and RFC 4055. + * + * PKCS#10 v1.7 describes certificate signing requests: + * + * CertificationRequestInfo: + * + * CertificationRequestInfo ::= SEQUENCE { + * version INTEGER { v1(0) } (v1,...), + * subject Name, + * subjectPKInfo SubjectPublicKeyInfo{{ PKInfoAlgorithms }}, + * attributes [0] Attributes{{ CRIAttributes }} + * } + * + * Attributes { ATTRIBUTE:IOSet } ::= SET OF Attribute{{ IOSet }} + * + * CRIAttributes ATTRIBUTE ::= { + * ... -- add any locally defined attributes here -- } + * + * Attribute { ATTRIBUTE:IOSet } ::= SEQUENCE { + * type ATTRIBUTE.&id({IOSet}), + * values SET SIZE(1..MAX) OF ATTRIBUTE.&Type({IOSet}{@type}) + * } + * + * CertificationRequest ::= SEQUENCE { + * certificationRequestInfo CertificationRequestInfo, + * signatureAlgorithm AlgorithmIdentifier{{ SignatureAlgorithms }}, + * signature BIT STRING + * } + */ +var forge = require('./forge'); +require('./aes'); +require('./asn1'); +require('./des'); +require('./md'); +require('./mgf'); +require('./oids'); +require('./pem'); +require('./pss'); +require('./rsa'); +require('./util'); + +// shortcut for asn.1 API +var asn1 = forge.asn1; + +/* Public Key Infrastructure (PKI) implementation. */ +var pki = module.exports = forge.pki = forge.pki || {}; +var oids = pki.oids; + +// short name OID mappings +var _shortNames = {}; +_shortNames['CN'] = oids['commonName']; +_shortNames['commonName'] = 'CN'; +_shortNames['C'] = oids['countryName']; +_shortNames['countryName'] = 'C'; +_shortNames['L'] = oids['localityName']; +_shortNames['localityName'] = 'L'; +_shortNames['ST'] = oids['stateOrProvinceName']; +_shortNames['stateOrProvinceName'] = 'ST'; +_shortNames['O'] = oids['organizationName']; +_shortNames['organizationName'] = 'O'; +_shortNames['OU'] = oids['organizationalUnitName']; +_shortNames['organizationalUnitName'] = 'OU'; +_shortNames['E'] = oids['emailAddress']; +_shortNames['emailAddress'] = 'E'; + +// validator for an SubjectPublicKeyInfo structure +// Note: Currently only works with an RSA public key +var publicKeyValidator = forge.pki.rsa.publicKeyValidator; + +// validator for an X.509v3 certificate +var x509CertificateValidator = { + name: 'Certificate', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'Certificate.TBSCertificate', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'tbsCertificate', + value: [{ + name: 'Certificate.TBSCertificate.version', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 0, + constructed: true, + optional: true, + value: [{ + name: 'Certificate.TBSCertificate.version.integer', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'certVersion' + }] + }, { + name: 'Certificate.TBSCertificate.serialNumber', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'certSerialNumber' + }, { + name: 'Certificate.TBSCertificate.signature', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'Certificate.TBSCertificate.signature.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'certinfoSignatureOid' + }, { + name: 'Certificate.TBSCertificate.signature.parameters', + tagClass: asn1.Class.UNIVERSAL, + optional: true, + captureAsn1: 'certinfoSignatureParams' + }] + }, { + name: 'Certificate.TBSCertificate.issuer', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'certIssuer' + }, { + name: 'Certificate.TBSCertificate.validity', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + // Note: UTC and generalized times may both appear so the capture + // names are based on their detected order, the names used below + // are only for the common case, which validity time really means + // "notBefore" and which means "notAfter" will be determined by order + value: [{ + // notBefore (Time) (UTC time case) + name: 'Certificate.TBSCertificate.validity.notBefore (utc)', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.UTCTIME, + constructed: false, + optional: true, + capture: 'certValidity1UTCTime' + }, { + // notBefore (Time) (generalized time case) + name: 'Certificate.TBSCertificate.validity.notBefore (generalized)', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.GENERALIZEDTIME, + constructed: false, + optional: true, + capture: 'certValidity2GeneralizedTime' + }, { + // notAfter (Time) (only UTC time is supported) + name: 'Certificate.TBSCertificate.validity.notAfter (utc)', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.UTCTIME, + constructed: false, + optional: true, + capture: 'certValidity3UTCTime' + }, { + // notAfter (Time) (only UTC time is supported) + name: 'Certificate.TBSCertificate.validity.notAfter (generalized)', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.GENERALIZEDTIME, + constructed: false, + optional: true, + capture: 'certValidity4GeneralizedTime' + }] + }, { + // Name (subject) (RDNSequence) + name: 'Certificate.TBSCertificate.subject', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'certSubject' + }, + // SubjectPublicKeyInfo + publicKeyValidator, + { + // issuerUniqueID (optional) + name: 'Certificate.TBSCertificate.issuerUniqueID', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 1, + constructed: true, + optional: true, + value: [{ + name: 'Certificate.TBSCertificate.issuerUniqueID.id', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.BITSTRING, + constructed: false, + // TODO: support arbitrary bit length ids + captureBitStringValue: 'certIssuerUniqueId' + }] + }, { + // subjectUniqueID (optional) + name: 'Certificate.TBSCertificate.subjectUniqueID', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 2, + constructed: true, + optional: true, + value: [{ + name: 'Certificate.TBSCertificate.subjectUniqueID.id', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.BITSTRING, + constructed: false, + // TODO: support arbitrary bit length ids + captureBitStringValue: 'certSubjectUniqueId' + }] + }, { + // Extensions (optional) + name: 'Certificate.TBSCertificate.extensions', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 3, + constructed: true, + captureAsn1: 'certExtensions', + optional: true + }] + }, { + // AlgorithmIdentifier (signature algorithm) + name: 'Certificate.signatureAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + // algorithm + name: 'Certificate.signatureAlgorithm.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'certSignatureOid' + }, { + name: 'Certificate.TBSCertificate.signature.parameters', + tagClass: asn1.Class.UNIVERSAL, + optional: true, + captureAsn1: 'certSignatureParams' + }] + }, { + // SignatureValue + name: 'Certificate.signatureValue', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.BITSTRING, + constructed: false, + captureBitStringValue: 'certSignature' + }] +}; + +var rsassaPssParameterValidator = { + name: 'rsapss', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'rsapss.hashAlgorithm', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 0, + constructed: true, + value: [{ + name: 'rsapss.hashAlgorithm.AlgorithmIdentifier', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Class.SEQUENCE, + constructed: true, + optional: true, + value: [{ + name: 'rsapss.hashAlgorithm.AlgorithmIdentifier.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'hashOid' + /* parameter block omitted, for SHA1 NULL anyhow. */ + }] + }] + }, { + name: 'rsapss.maskGenAlgorithm', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 1, + constructed: true, + value: [{ + name: 'rsapss.maskGenAlgorithm.AlgorithmIdentifier', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Class.SEQUENCE, + constructed: true, + optional: true, + value: [{ + name: 'rsapss.maskGenAlgorithm.AlgorithmIdentifier.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'maskGenOid' + }, { + name: 'rsapss.maskGenAlgorithm.AlgorithmIdentifier.params', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'rsapss.maskGenAlgorithm.AlgorithmIdentifier.params.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'maskGenHashOid' + /* parameter block omitted, for SHA1 NULL anyhow. */ + }] + }] + }] + }, { + name: 'rsapss.saltLength', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 2, + optional: true, + value: [{ + name: 'rsapss.saltLength.saltLength', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Class.INTEGER, + constructed: false, + capture: 'saltLength' + }] + }, { + name: 'rsapss.trailerField', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 3, + optional: true, + value: [{ + name: 'rsapss.trailer.trailer', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Class.INTEGER, + constructed: false, + capture: 'trailer' + }] + }] +}; + +// validator for a CertificationRequestInfo structure +var certificationRequestInfoValidator = { + name: 'CertificationRequestInfo', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'certificationRequestInfo', + value: [{ + name: 'CertificationRequestInfo.integer', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.INTEGER, + constructed: false, + capture: 'certificationRequestInfoVersion' + }, { + // Name (subject) (RDNSequence) + name: 'CertificationRequestInfo.subject', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'certificationRequestInfoSubject' + }, + // SubjectPublicKeyInfo + publicKeyValidator, + { + name: 'CertificationRequestInfo.attributes', + tagClass: asn1.Class.CONTEXT_SPECIFIC, + type: 0, + constructed: true, + optional: true, + capture: 'certificationRequestInfoAttributes', + value: [{ + name: 'CertificationRequestInfo.attributes', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + name: 'CertificationRequestInfo.attributes.type', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false + }, { + name: 'CertificationRequestInfo.attributes.value', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SET, + constructed: true + }] + }] + }] +}; + +// validator for a CertificationRequest structure +var certificationRequestValidator = { + name: 'CertificationRequest', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + captureAsn1: 'csr', + value: [ + certificationRequestInfoValidator, { + // AlgorithmIdentifier (signature algorithm) + name: 'CertificationRequest.signatureAlgorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.SEQUENCE, + constructed: true, + value: [{ + // algorithm + name: 'CertificationRequest.signatureAlgorithm.algorithm', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.OID, + constructed: false, + capture: 'csrSignatureOid' + }, { + name: 'CertificationRequest.signatureAlgorithm.parameters', + tagClass: asn1.Class.UNIVERSAL, + optional: true, + captureAsn1: 'csrSignatureParams' + }] + }, { + // signature + name: 'CertificationRequest.signature', + tagClass: asn1.Class.UNIVERSAL, + type: asn1.Type.BITSTRING, + constructed: false, + captureBitStringValue: 'csrSignature' + } + ] +}; + +/** + * Converts an RDNSequence of ASN.1 DER-encoded RelativeDistinguishedName + * sets into an array with objects that have type and value properties. + * + * @param rdn the RDNSequence to convert. + * @param md a message digest to append type and value to if provided. + */ +pki.RDNAttributesAsArray = function(rdn, md) { + var rval = []; + + // each value in 'rdn' in is a SET of RelativeDistinguishedName + var set, attr, obj; + for(var si = 0; si < rdn.value.length; ++si) { + // get the RelativeDistinguishedName set + set = rdn.value[si]; + + // each value in the SET is an AttributeTypeAndValue sequence + // containing first a type (an OID) and second a value (defined by + // the OID) + for(var i = 0; i < set.value.length; ++i) { + obj = {}; + attr = set.value[i]; + obj.type = asn1.derToOid(attr.value[0].value); + obj.value = attr.value[1].value; + obj.valueTagClass = attr.value[1].type; + // if the OID is known, get its name and short name + if(obj.type in oids) { + obj.name = oids[obj.type]; + if(obj.name in _shortNames) { + obj.shortName = _shortNames[obj.name]; + } + } + if(md) { + md.update(obj.type); + md.update(obj.value); + } + rval.push(obj); + } + } + + return rval; +}; + +/** + * Converts ASN.1 CRIAttributes into an array with objects that have type and + * value properties. + * + * @param attributes the CRIAttributes to convert. + */ +pki.CRIAttributesAsArray = function(attributes) { + var rval = []; + + // each value in 'attributes' in is a SEQUENCE with an OID and a SET + for(var si = 0; si < attributes.length; ++si) { + // get the attribute sequence + var seq = attributes[si]; + + // each value in the SEQUENCE containing first a type (an OID) and + // second a set of values (defined by the OID) + var type = asn1.derToOid(seq.value[0].value); + var values = seq.value[1].value; + for(var vi = 0; vi < values.length; ++vi) { + var obj = {}; + obj.type = type; + obj.value = values[vi].value; + obj.valueTagClass = values[vi].type; + // if the OID is known, get its name and short name + if(obj.type in oids) { + obj.name = oids[obj.type]; + if(obj.name in _shortNames) { + obj.shortName = _shortNames[obj.name]; + } + } + // parse extensions + if(obj.type === oids.extensionRequest) { + obj.extensions = []; + for(var ei = 0; ei < obj.value.length; ++ei) { + obj.extensions.push(pki.certificateExtensionFromAsn1(obj.value[ei])); + } + } + rval.push(obj); + } + } + + return rval; +}; + +/** + * Gets an issuer or subject attribute from its name, type, or short name. + * + * @param obj the issuer or subject object. + * @param options a short name string or an object with: + * shortName the short name for the attribute. + * name the name for the attribute. + * type the type for the attribute. + * + * @return the attribute. + */ +function _getAttribute(obj, options) { + if(typeof options === 'string') { + options = {shortName: options}; + } + + var rval = null; + var attr; + for(var i = 0; rval === null && i < obj.attributes.length; ++i) { + attr = obj.attributes[i]; + if(options.type && options.type === attr.type) { + rval = attr; + } else if(options.name && options.name === attr.name) { + rval = attr; + } else if(options.shortName && options.shortName === attr.shortName) { + rval = attr; + } + } + return rval; +} + +/** + * Converts signature parameters from ASN.1 structure. + * + * Currently only RSASSA-PSS supported. The PKCS#1 v1.5 signature scheme had + * no parameters. + * + * RSASSA-PSS-params ::= SEQUENCE { + * hashAlgorithm [0] HashAlgorithm DEFAULT + * sha1Identifier, + * maskGenAlgorithm [1] MaskGenAlgorithm DEFAULT + * mgf1SHA1Identifier, + * saltLength [2] INTEGER DEFAULT 20, + * trailerField [3] INTEGER DEFAULT 1 + * } + * + * HashAlgorithm ::= AlgorithmIdentifier + * + * MaskGenAlgorithm ::= AlgorithmIdentifier + * + * AlgorithmIdentifer ::= SEQUENCE { + * algorithm OBJECT IDENTIFIER, + * parameters ANY DEFINED BY algorithm OPTIONAL + * } + * + * @param oid The OID specifying the signature algorithm + * @param obj The ASN.1 structure holding the parameters + * @param fillDefaults Whether to use return default values where omitted + * @return signature parameter object + */ +var _readSignatureParameters = function(oid, obj, fillDefaults) { + var params = {}; + + if(oid !== oids['RSASSA-PSS']) { + return params; + } + + if(fillDefaults) { + params = { + hash: { + algorithmOid: oids['sha1'] + }, + mgf: { + algorithmOid: oids['mgf1'], + hash: { + algorithmOid: oids['sha1'] + } + }, + saltLength: 20 + }; + } + + var capture = {}; + var errors = []; + if(!asn1.validate(obj, rsassaPssParameterValidator, capture, errors)) { + var error = new Error('Cannot read RSASSA-PSS parameter block.'); + error.errors = errors; + throw error; + } + + if(capture.hashOid !== undefined) { + params.hash = params.hash || {}; + params.hash.algorithmOid = asn1.derToOid(capture.hashOid); + } + + if(capture.maskGenOid !== undefined) { + params.mgf = params.mgf || {}; + params.mgf.algorithmOid = asn1.derToOid(capture.maskGenOid); + params.mgf.hash = params.mgf.hash || {}; + params.mgf.hash.algorithmOid = asn1.derToOid(capture.maskGenHashOid); + } + + if(capture.saltLength !== undefined) { + params.saltLength = capture.saltLength.charCodeAt(0); + } + + return params; +}; + +/** + * Create signature digest for OID. + * + * @param options + * signatureOid: the OID specifying the signature algorithm. + * type: a human readable type for error messages + * @return a created md instance. throws if unknown oid. + */ +var _createSignatureDigest = function(options) { + switch(oids[options.signatureOid]) { + case 'sha1WithRSAEncryption': + // deprecated alias + case 'sha1WithRSASignature': + return forge.md.sha1.create(); + case 'md5WithRSAEncryption': + return forge.md.md5.create(); + case 'sha256WithRSAEncryption': + return forge.md.sha256.create(); + case 'sha384WithRSAEncryption': + return forge.md.sha384.create(); + case 'sha512WithRSAEncryption': + return forge.md.sha512.create(); + case 'RSASSA-PSS': + return forge.md.sha256.create(); + default: + var error = new Error( + 'Could not compute ' + options.type + ' digest. ' + + 'Unknown signature OID.'); + error.signatureOid = options.signatureOid; + throw error; + } +}; + +/** + * Verify signature on certificate or CSR. + * + * @param options: + * certificate the certificate or CSR to verify. + * md the signature digest. + * signature the signature + * @return a created md instance. throws if unknown oid. + */ +var _verifySignature = function(options) { + var cert = options.certificate; + var scheme; + + switch(cert.signatureOid) { + case oids.sha1WithRSAEncryption: + // deprecated alias + case oids.sha1WithRSASignature: + /* use PKCS#1 v1.5 padding scheme */ + break; + case oids['RSASSA-PSS']: + var hash, mgf; + + /* initialize mgf */ + hash = oids[cert.signatureParameters.mgf.hash.algorithmOid]; + if(hash === undefined || forge.md[hash] === undefined) { + var error = new Error('Unsupported MGF hash function.'); + error.oid = cert.signatureParameters.mgf.hash.algorithmOid; + error.name = hash; + throw error; + } + + mgf = oids[cert.signatureParameters.mgf.algorithmOid]; + if(mgf === undefined || forge.mgf[mgf] === undefined) { + var error = new Error('Unsupported MGF function.'); + error.oid = cert.signatureParameters.mgf.algorithmOid; + error.name = mgf; + throw error; + } + + mgf = forge.mgf[mgf].create(forge.md[hash].create()); + + /* initialize hash function */ + hash = oids[cert.signatureParameters.hash.algorithmOid]; + if(hash === undefined || forge.md[hash] === undefined) { + var error = new Error('Unsupported RSASSA-PSS hash function.'); + error.oid = cert.signatureParameters.hash.algorithmOid; + error.name = hash; + throw error; + } + + scheme = forge.pss.create( + forge.md[hash].create(), mgf, cert.signatureParameters.saltLength + ); + break; + } + + // verify signature on cert using public key + return cert.publicKey.verify( + options.md.digest().getBytes(), options.signature, scheme + ); +}; + +/** + * Converts an X.509 certificate from PEM format. + * + * Note: If the certificate is to be verified then compute hash should + * be set to true. This will scan the TBSCertificate part of the ASN.1 + * object while it is converted so it doesn't need to be converted back + * to ASN.1-DER-encoding later. + * + * @param pem the PEM-formatted certificate. + * @param computeHash true to compute the hash for verification. + * @param strict true to be strict when checking ASN.1 value lengths, false to + * allow truncated values (default: true). + * + * @return the certificate. + */ +pki.certificateFromPem = function(pem, computeHash, strict) { + var msg = forge.pem.decode(pem)[0]; + + if(msg.type !== 'CERTIFICATE' && + msg.type !== 'X509 CERTIFICATE' && + msg.type !== 'TRUSTED CERTIFICATE') { + var error = new Error( + 'Could not convert certificate from PEM; PEM header type ' + + 'is not "CERTIFICATE", "X509 CERTIFICATE", or "TRUSTED CERTIFICATE".'); + error.headerType = msg.type; + throw error; + } + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + throw new Error( + 'Could not convert certificate from PEM; PEM is encrypted.'); + } + + // convert DER to ASN.1 object + var obj = asn1.fromDer(msg.body, strict); + + return pki.certificateFromAsn1(obj, computeHash); +}; + +/** + * Converts an X.509 certificate to PEM format. + * + * @param cert the certificate. + * @param maxline the maximum characters per line, defaults to 64. + * + * @return the PEM-formatted certificate. + */ +pki.certificateToPem = function(cert, maxline) { + // convert to ASN.1, then DER, then PEM-encode + var msg = { + type: 'CERTIFICATE', + body: asn1.toDer(pki.certificateToAsn1(cert)).getBytes() + }; + return forge.pem.encode(msg, {maxline: maxline}); +}; + +/** + * Converts an RSA public key from PEM format. + * + * @param pem the PEM-formatted public key. + * + * @return the public key. + */ +pki.publicKeyFromPem = function(pem) { + var msg = forge.pem.decode(pem)[0]; + + if(msg.type !== 'PUBLIC KEY' && msg.type !== 'RSA PUBLIC KEY') { + var error = new Error('Could not convert public key from PEM; PEM header ' + + 'type is not "PUBLIC KEY" or "RSA PUBLIC KEY".'); + error.headerType = msg.type; + throw error; + } + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + throw new Error('Could not convert public key from PEM; PEM is encrypted.'); + } + + // convert DER to ASN.1 object + var obj = asn1.fromDer(msg.body); + + return pki.publicKeyFromAsn1(obj); +}; + +/** + * Converts an RSA public key to PEM format (using a SubjectPublicKeyInfo). + * + * @param key the public key. + * @param maxline the maximum characters per line, defaults to 64. + * + * @return the PEM-formatted public key. + */ +pki.publicKeyToPem = function(key, maxline) { + // convert to ASN.1, then DER, then PEM-encode + var msg = { + type: 'PUBLIC KEY', + body: asn1.toDer(pki.publicKeyToAsn1(key)).getBytes() + }; + return forge.pem.encode(msg, {maxline: maxline}); +}; + +/** + * Converts an RSA public key to PEM format (using an RSAPublicKey). + * + * @param key the public key. + * @param maxline the maximum characters per line, defaults to 64. + * + * @return the PEM-formatted public key. + */ +pki.publicKeyToRSAPublicKeyPem = function(key, maxline) { + // convert to ASN.1, then DER, then PEM-encode + var msg = { + type: 'RSA PUBLIC KEY', + body: asn1.toDer(pki.publicKeyToRSAPublicKey(key)).getBytes() + }; + return forge.pem.encode(msg, {maxline: maxline}); +}; + +/** + * Gets a fingerprint for the given public key. + * + * @param options the options to use. + * [md] the message digest object to use (defaults to forge.md.sha1). + * [type] the type of fingerprint, such as 'RSAPublicKey', + * 'SubjectPublicKeyInfo' (defaults to 'RSAPublicKey'). + * [encoding] an alternative output encoding, such as 'hex' + * (defaults to none, outputs a byte buffer). + * [delimiter] the delimiter to use between bytes for 'hex' encoded + * output, eg: ':' (defaults to none). + * + * @return the fingerprint as a byte buffer or other encoding based on options. + */ +pki.getPublicKeyFingerprint = function(key, options) { + options = options || {}; + var md = options.md || forge.md.sha1.create(); + var type = options.type || 'RSAPublicKey'; + + var bytes; + switch(type) { + case 'RSAPublicKey': + bytes = asn1.toDer(pki.publicKeyToRSAPublicKey(key)).getBytes(); + break; + case 'SubjectPublicKeyInfo': + bytes = asn1.toDer(pki.publicKeyToAsn1(key)).getBytes(); + break; + default: + throw new Error('Unknown fingerprint type "' + options.type + '".'); + } + + // hash public key bytes + md.start(); + md.update(bytes); + var digest = md.digest(); + if(options.encoding === 'hex') { + var hex = digest.toHex(); + if(options.delimiter) { + return hex.match(/.{2}/g).join(options.delimiter); + } + return hex; + } else if(options.encoding === 'binary') { + return digest.getBytes(); + } else if(options.encoding) { + throw new Error('Unknown encoding "' + options.encoding + '".'); + } + return digest; +}; + +/** + * Converts a PKCS#10 certification request (CSR) from PEM format. + * + * Note: If the certification request is to be verified then compute hash + * should be set to true. This will scan the CertificationRequestInfo part of + * the ASN.1 object while it is converted so it doesn't need to be converted + * back to ASN.1-DER-encoding later. + * + * @param pem the PEM-formatted certificate. + * @param computeHash true to compute the hash for verification. + * @param strict true to be strict when checking ASN.1 value lengths, false to + * allow truncated values (default: true). + * + * @return the certification request (CSR). + */ +pki.certificationRequestFromPem = function(pem, computeHash, strict) { + var msg = forge.pem.decode(pem)[0]; + + if(msg.type !== 'CERTIFICATE REQUEST') { + var error = new Error('Could not convert certification request from PEM; ' + + 'PEM header type is not "CERTIFICATE REQUEST".'); + error.headerType = msg.type; + throw error; + } + if(msg.procType && msg.procType.type === 'ENCRYPTED') { + throw new Error('Could not convert certification request from PEM; ' + + 'PEM is encrypted.'); + } + + // convert DER to ASN.1 object + var obj = asn1.fromDer(msg.body, strict); + + return pki.certificationRequestFromAsn1(obj, computeHash); +}; + +/** + * Converts a PKCS#10 certification request (CSR) to PEM format. + * + * @param csr the certification request. + * @param maxline the maximum characters per line, defaults to 64. + * + * @return the PEM-formatted certification request. + */ +pki.certificationRequestToPem = function(csr, maxline) { + // convert to ASN.1, then DER, then PEM-encode + var msg = { + type: 'CERTIFICATE REQUEST', + body: asn1.toDer(pki.certificationRequestToAsn1(csr)).getBytes() + }; + return forge.pem.encode(msg, {maxline: maxline}); +}; + +/** + * Creates an empty X.509v3 RSA certificate. + * + * @return the certificate. + */ +pki.createCertificate = function() { + var cert = {}; + cert.version = 0x02; + cert.serialNumber = '00'; + cert.signatureOid = null; + cert.signature = null; + cert.siginfo = {}; + cert.siginfo.algorithmOid = null; + cert.validity = {}; + cert.validity.notBefore = new Date(); + cert.validity.notAfter = new Date(); + + cert.issuer = {}; + cert.issuer.getField = function(sn) { + return _getAttribute(cert.issuer, sn); + }; + cert.issuer.addField = function(attr) { + _fillMissingFields([attr]); + cert.issuer.attributes.push(attr); + }; + cert.issuer.attributes = []; + cert.issuer.hash = null; + + cert.subject = {}; + cert.subject.getField = function(sn) { + return _getAttribute(cert.subject, sn); + }; + cert.subject.addField = function(attr) { + _fillMissingFields([attr]); + cert.subject.attributes.push(attr); + }; + cert.subject.attributes = []; + cert.subject.hash = null; + + cert.extensions = []; + cert.publicKey = null; + cert.md = null; + + /** + * Sets the subject of this certificate. + * + * @param attrs the array of subject attributes to use. + * @param uniqueId an optional a unique ID to use. + */ + cert.setSubject = function(attrs, uniqueId) { + // set new attributes, clear hash + _fillMissingFields(attrs); + cert.subject.attributes = attrs; + delete cert.subject.uniqueId; + if(uniqueId) { + // TODO: support arbitrary bit length ids + cert.subject.uniqueId = uniqueId; + } + cert.subject.hash = null; + }; + + /** + * Sets the issuer of this certificate. + * + * @param attrs the array of issuer attributes to use. + * @param uniqueId an optional a unique ID to use. + */ + cert.setIssuer = function(attrs, uniqueId) { + // set new attributes, clear hash + _fillMissingFields(attrs); + cert.issuer.attributes = attrs; + delete cert.issuer.uniqueId; + if(uniqueId) { + // TODO: support arbitrary bit length ids + cert.issuer.uniqueId = uniqueId; + } + cert.issuer.hash = null; + }; + + /** + * Sets the extensions of this certificate. + * + * @param exts the array of extensions to use. + */ + cert.setExtensions = function(exts) { + for(var i = 0; i < exts.length; ++i) { + _fillMissingExtensionFields(exts[i], {cert: cert}); + } + // set new extensions + cert.extensions = exts; + }; + + /** + * Gets an extension by its name or id. + * + * @param options the name to use or an object with: + * name the name to use. + * id the id to use. + * + * @return the extension or null if not found. + */ + cert.getExtension = function(options) { + if(typeof options === 'string') { + options = {name: options}; + } + + var rval = null; + var ext; + for(var i = 0; rval === null && i < cert.extensions.length; ++i) { + ext = cert.extensions[i]; + if(options.id && ext.id === options.id) { + rval = ext; + } else if(options.name && ext.name === options.name) { + rval = ext; + } + } + return rval; + }; + + /** + * Signs this certificate using the given private key. + * + * @param key the private key to sign with. + * @param md the message digest object to use (defaults to forge.md.sha1). + */ + cert.sign = function(key, md) { + // TODO: get signature OID from private key + cert.md = md || forge.md.sha1.create(); + var algorithmOid = oids[cert.md.algorithm + 'WithRSAEncryption']; + if(!algorithmOid) { + var error = new Error('Could not compute certificate digest. ' + + 'Unknown message digest algorithm OID.'); + error.algorithm = cert.md.algorithm; + throw error; + } + cert.signatureOid = cert.siginfo.algorithmOid = algorithmOid; + + // get TBSCertificate, convert to DER + cert.tbsCertificate = pki.getTBSCertificate(cert); + var bytes = asn1.toDer(cert.tbsCertificate); + + // digest and sign + cert.md.update(bytes.getBytes()); + cert.signature = key.sign(cert.md); + }; + + /** + * Attempts verify the signature on the passed certificate using this + * certificate's public key. + * + * @param child the certificate to verify. + * + * @return true if verified, false if not. + */ + cert.verify = function(child) { + var rval = false; + + if(!cert.issued(child)) { + var issuer = child.issuer; + var subject = cert.subject; + var error = new Error( + 'The parent certificate did not issue the given child ' + + 'certificate; the child certificate\'s issuer does not match the ' + + 'parent\'s subject.'); + error.expectedIssuer = subject.attributes; + error.actualIssuer = issuer.attributes; + throw error; + } + + var md = child.md; + if(md === null) { + // create digest for OID signature types + md = _createSignatureDigest({ + signatureOid: child.signatureOid, + type: 'certificate' + }); + + // produce DER formatted TBSCertificate and digest it + var tbsCertificate = child.tbsCertificate || pki.getTBSCertificate(child); + var bytes = asn1.toDer(tbsCertificate); + md.update(bytes.getBytes()); + } + + if(md !== null) { + rval = _verifySignature({ + certificate: cert, md: md, signature: child.signature + }); + } + + return rval; + }; + + /** + * Returns true if this certificate's issuer matches the passed + * certificate's subject. Note that no signature check is performed. + * + * @param parent the certificate to check. + * + * @return true if this certificate's issuer matches the passed certificate's + * subject. + */ + cert.isIssuer = function(parent) { + var rval = false; + + var i = cert.issuer; + var s = parent.subject; + + // compare hashes if present + if(i.hash && s.hash) { + rval = (i.hash === s.hash); + } else if(i.attributes.length === s.attributes.length) { + // all attributes are the same so issuer matches subject + rval = true; + var iattr, sattr; + for(var n = 0; rval && n < i.attributes.length; ++n) { + iattr = i.attributes[n]; + sattr = s.attributes[n]; + if(iattr.type !== sattr.type || iattr.value !== sattr.value) { + // attribute mismatch + rval = false; + } + } + } + + return rval; + }; + + /** + * Returns true if this certificate's subject matches the issuer of the + * given certificate). Note that not signature check is performed. + * + * @param child the certificate to check. + * + * @return true if this certificate's subject matches the passed + * certificate's issuer. + */ + cert.issued = function(child) { + return child.isIssuer(cert); + }; + + /** + * Generates the subjectKeyIdentifier for this certificate as byte buffer. + * + * @return the subjectKeyIdentifier for this certificate as byte buffer. + */ + cert.generateSubjectKeyIdentifier = function() { + /* See: 4.2.1.2 section of the the RFC3280, keyIdentifier is either: + + (1) The keyIdentifier is composed of the 160-bit SHA-1 hash of the + value of the BIT STRING subjectPublicKey (excluding the tag, + length, and number of unused bits). + + (2) The keyIdentifier is composed of a four bit type field with + the value 0100 followed by the least significant 60 bits of the + SHA-1 hash of the value of the BIT STRING subjectPublicKey + (excluding the tag, length, and number of unused bit string bits). + */ + + // skipping the tag, length, and number of unused bits is the same + // as just using the RSAPublicKey (for RSA keys, which are the + // only ones supported) + return pki.getPublicKeyFingerprint(cert.publicKey, {type: 'RSAPublicKey'}); + }; + + /** + * Verifies the subjectKeyIdentifier extension value for this certificate + * against its public key. If no extension is found, false will be + * returned. + * + * @return true if verified, false if not. + */ + cert.verifySubjectKeyIdentifier = function() { + var oid = oids['subjectKeyIdentifier']; + for(var i = 0; i < cert.extensions.length; ++i) { + var ext = cert.extensions[i]; + if(ext.id === oid) { + var ski = cert.generateSubjectKeyIdentifier().getBytes(); + return (forge.util.hexToBytes(ext.subjectKeyIdentifier) === ski); + } + } + return false; + }; + + return cert; +}; + +/** + * Converts an X.509v3 RSA certificate from an ASN.1 object. + * + * Note: If the certificate is to be verified then compute hash should + * be set to true. There is currently no implementation for converting + * a certificate back to ASN.1 so the TBSCertificate part of the ASN.1 + * object needs to be scanned before the cert object is created. + * + * @param obj the asn1 representation of an X.509v3 RSA certificate. + * @param computeHash true to compute the hash for verification. + * + * @return the certificate. + */ +pki.certificateFromAsn1 = function(obj, computeHash) { + // validate certificate and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(obj, x509CertificateValidator, capture, errors)) { + var error = new Error('Cannot read X.509 certificate. ' + + 'ASN.1 object is not an X509v3 Certificate.'); + error.errors = errors; + throw error; + } + + // get oid + var oid = asn1.derToOid(capture.publicKeyOid); + if(oid !== pki.oids.rsaEncryption) { + throw new Error('Cannot read public key. OID is not RSA.'); + } + + // create certificate + var cert = pki.createCertificate(); + cert.version = capture.certVersion ? + capture.certVersion.charCodeAt(0) : 0; + var serial = forge.util.createBuffer(capture.certSerialNumber); + cert.serialNumber = serial.toHex(); + cert.signatureOid = forge.asn1.derToOid(capture.certSignatureOid); + cert.signatureParameters = _readSignatureParameters( + cert.signatureOid, capture.certSignatureParams, true); + cert.siginfo.algorithmOid = forge.asn1.derToOid(capture.certinfoSignatureOid); + cert.siginfo.parameters = _readSignatureParameters(cert.siginfo.algorithmOid, + capture.certinfoSignatureParams, false); + cert.signature = capture.certSignature; + + var validity = []; + if(capture.certValidity1UTCTime !== undefined) { + validity.push(asn1.utcTimeToDate(capture.certValidity1UTCTime)); + } + if(capture.certValidity2GeneralizedTime !== undefined) { + validity.push(asn1.generalizedTimeToDate( + capture.certValidity2GeneralizedTime)); + } + if(capture.certValidity3UTCTime !== undefined) { + validity.push(asn1.utcTimeToDate(capture.certValidity3UTCTime)); + } + if(capture.certValidity4GeneralizedTime !== undefined) { + validity.push(asn1.generalizedTimeToDate( + capture.certValidity4GeneralizedTime)); + } + if(validity.length > 2) { + throw new Error('Cannot read notBefore/notAfter validity times; more ' + + 'than two times were provided in the certificate.'); + } + if(validity.length < 2) { + throw new Error('Cannot read notBefore/notAfter validity times; they ' + + 'were not provided as either UTCTime or GeneralizedTime.'); + } + cert.validity.notBefore = validity[0]; + cert.validity.notAfter = validity[1]; + + // keep TBSCertificate to preserve signature when exporting + cert.tbsCertificate = capture.tbsCertificate; + + if(computeHash) { + // create digest for OID signature type + cert.md = _createSignatureDigest({ + signatureOid: cert.signatureOid, + type: 'certificate' + }); + + // produce DER formatted TBSCertificate and digest it + var bytes = asn1.toDer(cert.tbsCertificate); + cert.md.update(bytes.getBytes()); + } + + // handle issuer, build issuer message digest + var imd = forge.md.sha1.create(); + var ibytes = asn1.toDer(capture.certIssuer); + imd.update(ibytes.getBytes()); + cert.issuer.getField = function(sn) { + return _getAttribute(cert.issuer, sn); + }; + cert.issuer.addField = function(attr) { + _fillMissingFields([attr]); + cert.issuer.attributes.push(attr); + }; + cert.issuer.attributes = pki.RDNAttributesAsArray(capture.certIssuer); + if(capture.certIssuerUniqueId) { + cert.issuer.uniqueId = capture.certIssuerUniqueId; + } + cert.issuer.hash = imd.digest().toHex(); + + // handle subject, build subject message digest + var smd = forge.md.sha1.create(); + var sbytes = asn1.toDer(capture.certSubject); + smd.update(sbytes.getBytes()); + cert.subject.getField = function(sn) { + return _getAttribute(cert.subject, sn); + }; + cert.subject.addField = function(attr) { + _fillMissingFields([attr]); + cert.subject.attributes.push(attr); + }; + cert.subject.attributes = pki.RDNAttributesAsArray(capture.certSubject); + if(capture.certSubjectUniqueId) { + cert.subject.uniqueId = capture.certSubjectUniqueId; + } + cert.subject.hash = smd.digest().toHex(); + + // handle extensions + if(capture.certExtensions) { + cert.extensions = pki.certificateExtensionsFromAsn1(capture.certExtensions); + } else { + cert.extensions = []; + } + + // convert RSA public key from ASN.1 + cert.publicKey = pki.publicKeyFromAsn1(capture.subjectPublicKeyInfo); + + return cert; +}; + +/** + * Converts an ASN.1 extensions object (with extension sequences as its + * values) into an array of extension objects with types and values. + * + * Supported extensions: + * + * id-ce-keyUsage OBJECT IDENTIFIER ::= { id-ce 15 } + * KeyUsage ::= BIT STRING { + * digitalSignature (0), + * nonRepudiation (1), + * keyEncipherment (2), + * dataEncipherment (3), + * keyAgreement (4), + * keyCertSign (5), + * cRLSign (6), + * encipherOnly (7), + * decipherOnly (8) + * } + * + * id-ce-basicConstraints OBJECT IDENTIFIER ::= { id-ce 19 } + * BasicConstraints ::= SEQUENCE { + * cA BOOLEAN DEFAULT FALSE, + * pathLenConstraint INTEGER (0..MAX) OPTIONAL + * } + * + * subjectAltName EXTENSION ::= { + * SYNTAX GeneralNames + * IDENTIFIED BY id-ce-subjectAltName + * } + * + * GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName + * + * GeneralName ::= CHOICE { + * otherName [0] INSTANCE OF OTHER-NAME, + * rfc822Name [1] IA5String, + * dNSName [2] IA5String, + * x400Address [3] ORAddress, + * directoryName [4] Name, + * ediPartyName [5] EDIPartyName, + * uniformResourceIdentifier [6] IA5String, + * IPAddress [7] OCTET STRING, + * registeredID [8] OBJECT IDENTIFIER + * } + * + * OTHER-NAME ::= TYPE-IDENTIFIER + * + * EDIPartyName ::= SEQUENCE { + * nameAssigner [0] DirectoryString {ub-name} OPTIONAL, + * partyName [1] DirectoryString {ub-name} + * } + * + * @param exts the extensions ASN.1 with extension sequences to parse. + * + * @return the array. + */ +pki.certificateExtensionsFromAsn1 = function(exts) { + var rval = []; + for(var i = 0; i < exts.value.length; ++i) { + // get extension sequence + var extseq = exts.value[i]; + for(var ei = 0; ei < extseq.value.length; ++ei) { + rval.push(pki.certificateExtensionFromAsn1(extseq.value[ei])); + } + } + + return rval; +}; + +/** + * Parses a single certificate extension from ASN.1. + * + * @param ext the extension in ASN.1 format. + * + * @return the parsed extension as an object. + */ +pki.certificateExtensionFromAsn1 = function(ext) { + // an extension has: + // [0] extnID OBJECT IDENTIFIER + // [1] critical BOOLEAN DEFAULT FALSE + // [2] extnValue OCTET STRING + var e = {}; + e.id = asn1.derToOid(ext.value[0].value); + e.critical = false; + if(ext.value[1].type === asn1.Type.BOOLEAN) { + e.critical = (ext.value[1].value.charCodeAt(0) !== 0x00); + e.value = ext.value[2].value; + } else { + e.value = ext.value[1].value; + } + // if the oid is known, get its name + if(e.id in oids) { + e.name = oids[e.id]; + + // handle key usage + if(e.name === 'keyUsage') { + // get value as BIT STRING + var ev = asn1.fromDer(e.value); + var b2 = 0x00; + var b3 = 0x00; + if(ev.value.length > 1) { + // skip first byte, just indicates unused bits which + // will be padded with 0s anyway + // get bytes with flag bits + b2 = ev.value.charCodeAt(1); + b3 = ev.value.length > 2 ? ev.value.charCodeAt(2) : 0; + } + // set flags + e.digitalSignature = (b2 & 0x80) === 0x80; + e.nonRepudiation = (b2 & 0x40) === 0x40; + e.keyEncipherment = (b2 & 0x20) === 0x20; + e.dataEncipherment = (b2 & 0x10) === 0x10; + e.keyAgreement = (b2 & 0x08) === 0x08; + e.keyCertSign = (b2 & 0x04) === 0x04; + e.cRLSign = (b2 & 0x02) === 0x02; + e.encipherOnly = (b2 & 0x01) === 0x01; + e.decipherOnly = (b3 & 0x80) === 0x80; + } else if(e.name === 'basicConstraints') { + // handle basic constraints + // get value as SEQUENCE + var ev = asn1.fromDer(e.value); + // get cA BOOLEAN flag (defaults to false) + if(ev.value.length > 0 && ev.value[0].type === asn1.Type.BOOLEAN) { + e.cA = (ev.value[0].value.charCodeAt(0) !== 0x00); + } else { + e.cA = false; + } + // get path length constraint + var value = null; + if(ev.value.length > 0 && ev.value[0].type === asn1.Type.INTEGER) { + value = ev.value[0].value; + } else if(ev.value.length > 1) { + value = ev.value[1].value; + } + if(value !== null) { + e.pathLenConstraint = asn1.derToInteger(value); + } + } else if(e.name === 'extKeyUsage') { + // handle extKeyUsage + // value is a SEQUENCE of OIDs + var ev = asn1.fromDer(e.value); + for(var vi = 0; vi < ev.value.length; ++vi) { + var oid = asn1.derToOid(ev.value[vi].value); + if(oid in oids) { + e[oids[oid]] = true; + } else { + e[oid] = true; + } + } + } else if(e.name === 'nsCertType') { + // handle nsCertType + // get value as BIT STRING + var ev = asn1.fromDer(e.value); + var b2 = 0x00; + if(ev.value.length > 1) { + // skip first byte, just indicates unused bits which + // will be padded with 0s anyway + // get bytes with flag bits + b2 = ev.value.charCodeAt(1); + } + // set flags + e.client = (b2 & 0x80) === 0x80; + e.server = (b2 & 0x40) === 0x40; + e.email = (b2 & 0x20) === 0x20; + e.objsign = (b2 & 0x10) === 0x10; + e.reserved = (b2 & 0x08) === 0x08; + e.sslCA = (b2 & 0x04) === 0x04; + e.emailCA = (b2 & 0x02) === 0x02; + e.objCA = (b2 & 0x01) === 0x01; + } else if( + e.name === 'subjectAltName' || + e.name === 'issuerAltName') { + // handle subjectAltName/issuerAltName + e.altNames = []; + + // ev is a SYNTAX SEQUENCE + var gn; + var ev = asn1.fromDer(e.value); + for(var n = 0; n < ev.value.length; ++n) { + // get GeneralName + gn = ev.value[n]; + + var altName = { + type: gn.type, + value: gn.value + }; + e.altNames.push(altName); + + // Note: Support for types 1,2,6,7,8 + switch(gn.type) { + // rfc822Name + case 1: + // dNSName + case 2: + // uniformResourceIdentifier (URI) + case 6: + break; + // IPAddress + case 7: + // convert to IPv4/IPv6 string representation + altName.ip = forge.util.bytesToIP(gn.value); + break; + // registeredID + case 8: + altName.oid = asn1.derToOid(gn.value); + break; + default: + // unsupported + } + } + } else if(e.name === 'subjectKeyIdentifier') { + // value is an OCTETSTRING w/the hash of the key-type specific + // public key structure (eg: RSAPublicKey) + var ev = asn1.fromDer(e.value); + e.subjectKeyIdentifier = forge.util.bytesToHex(ev.value); + } + } + return e; +}; + +/** + * Converts a PKCS#10 certification request (CSR) from an ASN.1 object. + * + * Note: If the certification request is to be verified then compute hash + * should be set to true. There is currently no implementation for converting + * a certificate back to ASN.1 so the CertificationRequestInfo part of the + * ASN.1 object needs to be scanned before the csr object is created. + * + * @param obj the asn1 representation of a PKCS#10 certification request (CSR). + * @param computeHash true to compute the hash for verification. + * + * @return the certification request (CSR). + */ +pki.certificationRequestFromAsn1 = function(obj, computeHash) { + // validate certification request and capture data + var capture = {}; + var errors = []; + if(!asn1.validate(obj, certificationRequestValidator, capture, errors)) { + var error = new Error('Cannot read PKCS#10 certificate request. ' + + 'ASN.1 object is not a PKCS#10 CertificationRequest.'); + error.errors = errors; + throw error; + } + + // get oid + var oid = asn1.derToOid(capture.publicKeyOid); + if(oid !== pki.oids.rsaEncryption) { + throw new Error('Cannot read public key. OID is not RSA.'); + } + + // create certification request + var csr = pki.createCertificationRequest(); + csr.version = capture.csrVersion ? capture.csrVersion.charCodeAt(0) : 0; + csr.signatureOid = forge.asn1.derToOid(capture.csrSignatureOid); + csr.signatureParameters = _readSignatureParameters( + csr.signatureOid, capture.csrSignatureParams, true); + csr.siginfo.algorithmOid = forge.asn1.derToOid(capture.csrSignatureOid); + csr.siginfo.parameters = _readSignatureParameters( + csr.siginfo.algorithmOid, capture.csrSignatureParams, false); + csr.signature = capture.csrSignature; + + // keep CertificationRequestInfo to preserve signature when exporting + csr.certificationRequestInfo = capture.certificationRequestInfo; + + if(computeHash) { + // create digest for OID signature type + csr.md = _createSignatureDigest({ + signatureOid: csr.signatureOid, + type: 'certification request' + }); + + // produce DER formatted CertificationRequestInfo and digest it + var bytes = asn1.toDer(csr.certificationRequestInfo); + csr.md.update(bytes.getBytes()); + } + + // handle subject, build subject message digest + var smd = forge.md.sha1.create(); + csr.subject.getField = function(sn) { + return _getAttribute(csr.subject, sn); + }; + csr.subject.addField = function(attr) { + _fillMissingFields([attr]); + csr.subject.attributes.push(attr); + }; + csr.subject.attributes = pki.RDNAttributesAsArray( + capture.certificationRequestInfoSubject, smd); + csr.subject.hash = smd.digest().toHex(); + + // convert RSA public key from ASN.1 + csr.publicKey = pki.publicKeyFromAsn1(capture.subjectPublicKeyInfo); + + // convert attributes from ASN.1 + csr.getAttribute = function(sn) { + return _getAttribute(csr, sn); + }; + csr.addAttribute = function(attr) { + _fillMissingFields([attr]); + csr.attributes.push(attr); + }; + csr.attributes = pki.CRIAttributesAsArray( + capture.certificationRequestInfoAttributes || []); + + return csr; +}; + +/** + * Creates an empty certification request (a CSR or certificate signing + * request). Once created, its public key and attributes can be set and then + * it can be signed. + * + * @return the empty certification request. + */ +pki.createCertificationRequest = function() { + var csr = {}; + csr.version = 0x00; + csr.signatureOid = null; + csr.signature = null; + csr.siginfo = {}; + csr.siginfo.algorithmOid = null; + + csr.subject = {}; + csr.subject.getField = function(sn) { + return _getAttribute(csr.subject, sn); + }; + csr.subject.addField = function(attr) { + _fillMissingFields([attr]); + csr.subject.attributes.push(attr); + }; + csr.subject.attributes = []; + csr.subject.hash = null; + + csr.publicKey = null; + csr.attributes = []; + csr.getAttribute = function(sn) { + return _getAttribute(csr, sn); + }; + csr.addAttribute = function(attr) { + _fillMissingFields([attr]); + csr.attributes.push(attr); + }; + csr.md = null; + + /** + * Sets the subject of this certification request. + * + * @param attrs the array of subject attributes to use. + */ + csr.setSubject = function(attrs) { + // set new attributes + _fillMissingFields(attrs); + csr.subject.attributes = attrs; + csr.subject.hash = null; + }; + + /** + * Sets the attributes of this certification request. + * + * @param attrs the array of attributes to use. + */ + csr.setAttributes = function(attrs) { + // set new attributes + _fillMissingFields(attrs); + csr.attributes = attrs; + }; + + /** + * Signs this certification request using the given private key. + * + * @param key the private key to sign with. + * @param md the message digest object to use (defaults to forge.md.sha1). + */ + csr.sign = function(key, md) { + // TODO: get signature OID from private key + csr.md = md || forge.md.sha1.create(); + var algorithmOid = oids[csr.md.algorithm + 'WithRSAEncryption']; + if(!algorithmOid) { + var error = new Error('Could not compute certification request digest. ' + + 'Unknown message digest algorithm OID.'); + error.algorithm = csr.md.algorithm; + throw error; + } + csr.signatureOid = csr.siginfo.algorithmOid = algorithmOid; + + // get CertificationRequestInfo, convert to DER + csr.certificationRequestInfo = pki.getCertificationRequestInfo(csr); + var bytes = asn1.toDer(csr.certificationRequestInfo); + + // digest and sign + csr.md.update(bytes.getBytes()); + csr.signature = key.sign(csr.md); + }; + + /** + * Attempts verify the signature on the passed certification request using + * its public key. + * + * A CSR that has been exported to a file in PEM format can be verified using + * OpenSSL using this command: + * + * openssl req -in -verify -noout -text + * + * @return true if verified, false if not. + */ + csr.verify = function() { + var rval = false; + + var md = csr.md; + if(md === null) { + md = _createSignatureDigest({ + signatureOid: csr.signatureOid, + type: 'certification request' + }); + + // produce DER formatted CertificationRequestInfo and digest it + var cri = csr.certificationRequestInfo || + pki.getCertificationRequestInfo(csr); + var bytes = asn1.toDer(cri); + md.update(bytes.getBytes()); + } + + if(md !== null) { + rval = _verifySignature({ + certificate: csr, md: md, signature: csr.signature + }); + } + + return rval; + }; + + return csr; +}; + +/** + * Converts an X.509 subject or issuer to an ASN.1 RDNSequence. + * + * @param obj the subject or issuer (distinguished name). + * + * @return the ASN.1 RDNSequence. + */ +function _dnToAsn1(obj) { + // create an empty RDNSequence + var rval = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + + // iterate over attributes + var attr, set; + var attrs = obj.attributes; + for(var i = 0; i < attrs.length; ++i) { + attr = attrs[i]; + var value = attr.value; + + // reuse tag class for attribute value if available + var valueTagClass = asn1.Type.PRINTABLESTRING; + if('valueTagClass' in attr) { + valueTagClass = attr.valueTagClass; + + if(valueTagClass === asn1.Type.UTF8) { + value = forge.util.encodeUtf8(value); + } + // FIXME: handle more encodings + } + + // create a RelativeDistinguishedName set + // each value in the set is an AttributeTypeAndValue first + // containing the type (an OID) and second the value + set = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // AttributeType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(attr.type).getBytes()), + // AttributeValue + asn1.create(asn1.Class.UNIVERSAL, valueTagClass, false, value) + ]) + ]); + rval.value.push(set); + } + + return rval; +} + +/** + * Gets all printable attributes (typically of an issuer or subject) in a + * simplified JSON format for display. + * + * @param attrs the attributes. + * + * @return the JSON for display. + */ +function _getAttributesAsJson(attrs) { + var rval = {}; + for(var i = 0; i < attrs.length; ++i) { + var attr = attrs[i]; + if(attr.shortName && ( + attr.valueTagClass === asn1.Type.UTF8 || + attr.valueTagClass === asn1.Type.PRINTABLESTRING || + attr.valueTagClass === asn1.Type.IA5STRING)) { + var value = attr.value; + if(attr.valueTagClass === asn1.Type.UTF8) { + value = forge.util.encodeUtf8(attr.value); + } + if(!(attr.shortName in rval)) { + rval[attr.shortName] = value; + } else if(forge.util.isArray(rval[attr.shortName])) { + rval[attr.shortName].push(value); + } else { + rval[attr.shortName] = [rval[attr.shortName], value]; + } + } + } + return rval; +} + +/** + * Fills in missing fields in attributes. + * + * @param attrs the attributes to fill missing fields in. + */ +function _fillMissingFields(attrs) { + var attr; + for(var i = 0; i < attrs.length; ++i) { + attr = attrs[i]; + + // populate missing name + if(typeof attr.name === 'undefined') { + if(attr.type && attr.type in pki.oids) { + attr.name = pki.oids[attr.type]; + } else if(attr.shortName && attr.shortName in _shortNames) { + attr.name = pki.oids[_shortNames[attr.shortName]]; + } + } + + // populate missing type (OID) + if(typeof attr.type === 'undefined') { + if(attr.name && attr.name in pki.oids) { + attr.type = pki.oids[attr.name]; + } else { + var error = new Error('Attribute type not specified.'); + error.attribute = attr; + throw error; + } + } + + // populate missing shortname + if(typeof attr.shortName === 'undefined') { + if(attr.name && attr.name in _shortNames) { + attr.shortName = _shortNames[attr.name]; + } + } + + // convert extensions to value + if(attr.type === oids.extensionRequest) { + attr.valueConstructed = true; + attr.valueTagClass = asn1.Type.SEQUENCE; + if(!attr.value && attr.extensions) { + attr.value = []; + for(var ei = 0; ei < attr.extensions.length; ++ei) { + attr.value.push(pki.certificateExtensionToAsn1( + _fillMissingExtensionFields(attr.extensions[ei]))); + } + } + } + + if(typeof attr.value === 'undefined') { + var error = new Error('Attribute value not specified.'); + error.attribute = attr; + throw error; + } + } +} + +/** + * Fills in missing fields in certificate extensions. + * + * @param e the extension. + * @param [options] the options to use. + * [cert] the certificate the extensions are for. + * + * @return the extension. + */ +function _fillMissingExtensionFields(e, options) { + options = options || {}; + + // populate missing name + if(typeof e.name === 'undefined') { + if(e.id && e.id in pki.oids) { + e.name = pki.oids[e.id]; + } + } + + // populate missing id + if(typeof e.id === 'undefined') { + if(e.name && e.name in pki.oids) { + e.id = pki.oids[e.name]; + } else { + var error = new Error('Extension ID not specified.'); + error.extension = e; + throw error; + } + } + + if(typeof e.value !== 'undefined') { + return e; + } + + // handle missing value: + + // value is a BIT STRING + if(e.name === 'keyUsage') { + // build flags + var unused = 0; + var b2 = 0x00; + var b3 = 0x00; + if(e.digitalSignature) { + b2 |= 0x80; + unused = 7; + } + if(e.nonRepudiation) { + b2 |= 0x40; + unused = 6; + } + if(e.keyEncipherment) { + b2 |= 0x20; + unused = 5; + } + if(e.dataEncipherment) { + b2 |= 0x10; + unused = 4; + } + if(e.keyAgreement) { + b2 |= 0x08; + unused = 3; + } + if(e.keyCertSign) { + b2 |= 0x04; + unused = 2; + } + if(e.cRLSign) { + b2 |= 0x02; + unused = 1; + } + if(e.encipherOnly) { + b2 |= 0x01; + unused = 0; + } + if(e.decipherOnly) { + b3 |= 0x80; + unused = 7; + } + + // create bit string + var value = String.fromCharCode(unused); + if(b3 !== 0) { + value += String.fromCharCode(b2) + String.fromCharCode(b3); + } else if(b2 !== 0) { + value += String.fromCharCode(b2); + } + e.value = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, value); + } else if(e.name === 'basicConstraints') { + // basicConstraints is a SEQUENCE + e.value = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + // cA BOOLEAN flag defaults to false + if(e.cA) { + e.value.value.push(asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.BOOLEAN, false, + String.fromCharCode(0xFF))); + } + if('pathLenConstraint' in e) { + e.value.value.push(asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(e.pathLenConstraint).getBytes())); + } + } else if(e.name === 'extKeyUsage') { + // extKeyUsage is a SEQUENCE of OIDs + e.value = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + var seq = e.value.value; + for(var key in e) { + if(e[key] !== true) { + continue; + } + // key is name in OID map + if(key in oids) { + seq.push(asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, + false, asn1.oidToDer(oids[key]).getBytes())); + } else if(key.indexOf('.') !== -1) { + // assume key is an OID + seq.push(asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, + false, asn1.oidToDer(key).getBytes())); + } + } + } else if(e.name === 'nsCertType') { + // nsCertType is a BIT STRING + // build flags + var unused = 0; + var b2 = 0x00; + + if(e.client) { + b2 |= 0x80; + unused = 7; + } + if(e.server) { + b2 |= 0x40; + unused = 6; + } + if(e.email) { + b2 |= 0x20; + unused = 5; + } + if(e.objsign) { + b2 |= 0x10; + unused = 4; + } + if(e.reserved) { + b2 |= 0x08; + unused = 3; + } + if(e.sslCA) { + b2 |= 0x04; + unused = 2; + } + if(e.emailCA) { + b2 |= 0x02; + unused = 1; + } + if(e.objCA) { + b2 |= 0x01; + unused = 0; + } + + // create bit string + var value = String.fromCharCode(unused); + if(b2 !== 0) { + value += String.fromCharCode(b2); + } + e.value = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, value); + } else if(e.name === 'subjectAltName' || e.name === 'issuerAltName') { + // SYNTAX SEQUENCE + e.value = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + + var altName; + for(var n = 0; n < e.altNames.length; ++n) { + altName = e.altNames[n]; + var value = altName.value; + // handle IP + if(altName.type === 7 && altName.ip) { + value = forge.util.bytesFromIP(altName.ip); + if(value === null) { + var error = new Error( + 'Extension "ip" value is not a valid IPv4 or IPv6 address.'); + error.extension = e; + throw error; + } + } else if(altName.type === 8) { + // handle OID + if(altName.oid) { + value = asn1.oidToDer(asn1.oidToDer(altName.oid)); + } else { + // deprecated ... convert value to OID + value = asn1.oidToDer(value); + } + } + e.value.value.push(asn1.create( + asn1.Class.CONTEXT_SPECIFIC, altName.type, false, + value)); + } + } else if(e.name === 'nsComment' && options.cert) { + // sanity check value is ASCII (req'd) and not too big + if(!(/^[\x00-\x7F]*$/.test(e.comment)) || + (e.comment.length < 1) || (e.comment.length > 128)) { + throw new Error('Invalid "nsComment" content.'); + } + // IA5STRING opaque comment + e.value = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.IA5STRING, false, e.comment); + } else if(e.name === 'subjectKeyIdentifier' && options.cert) { + var ski = options.cert.generateSubjectKeyIdentifier(); + e.subjectKeyIdentifier = ski.toHex(); + // OCTETSTRING w/digest + e.value = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, ski.getBytes()); + } else if(e.name === 'authorityKeyIdentifier' && options.cert) { + // SYNTAX SEQUENCE + e.value = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + var seq = e.value.value; + + if(e.keyIdentifier) { + var keyIdentifier = (e.keyIdentifier === true ? + options.cert.generateSubjectKeyIdentifier().getBytes() : + e.keyIdentifier); + seq.push( + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, false, keyIdentifier)); + } + + if(e.authorityCertIssuer) { + var authorityCertIssuer = [ + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 4, true, [ + _dnToAsn1(e.authorityCertIssuer === true ? + options.cert.issuer : e.authorityCertIssuer) + ]) + ]; + seq.push( + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 1, true, authorityCertIssuer)); + } + + if(e.serialNumber) { + var serialNumber = forge.util.hexToBytes(e.serialNumber === true ? + options.cert.serialNumber : e.serialNumber); + seq.push( + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 2, false, serialNumber)); + } + } else if(e.name === 'cRLDistributionPoints') { + e.value = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + var seq = e.value.value; + + // Create sub SEQUENCE of DistributionPointName + var subSeq = asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + + // Create fullName CHOICE + var fullNameGeneralNames = asn1.create( + asn1.Class.CONTEXT_SPECIFIC, 0, true, []); + var altName; + for(var n = 0; n < e.altNames.length; ++n) { + altName = e.altNames[n]; + var value = altName.value; + // handle IP + if(altName.type === 7 && altName.ip) { + value = forge.util.bytesFromIP(altName.ip); + if(value === null) { + var error = new Error( + 'Extension "ip" value is not a valid IPv4 or IPv6 address.'); + error.extension = e; + throw error; + } + } else if(altName.type === 8) { + // handle OID + if(altName.oid) { + value = asn1.oidToDer(asn1.oidToDer(altName.oid)); + } else { + // deprecated ... convert value to OID + value = asn1.oidToDer(value); + } + } + fullNameGeneralNames.value.push(asn1.create( + asn1.Class.CONTEXT_SPECIFIC, altName.type, false, + value)); + } + + // Add to the parent SEQUENCE + subSeq.value.push(asn1.create( + asn1.Class.CONTEXT_SPECIFIC, 0, true, [fullNameGeneralNames])); + seq.push(subSeq); + } + + // ensure value has been defined by now + if(typeof e.value === 'undefined') { + var error = new Error('Extension value not specified.'); + error.extension = e; + throw error; + } + + return e; +} + +/** + * Convert signature parameters object to ASN.1 + * + * @param {String} oid Signature algorithm OID + * @param params The signature parametrs object + * @return ASN.1 object representing signature parameters + */ +function _signatureParametersToAsn1(oid, params) { + switch(oid) { + case oids['RSASSA-PSS']: + var parts = []; + + if(params.hash.algorithmOid !== undefined) { + parts.push(asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(params.hash.algorithmOid).getBytes()), + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]) + ])); + } + + if(params.mgf.algorithmOid !== undefined) { + parts.push(asn1.create(asn1.Class.CONTEXT_SPECIFIC, 1, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(params.mgf.algorithmOid).getBytes()), + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(params.mgf.hash.algorithmOid).getBytes()), + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, '') + ]) + ]) + ])); + } + + if(params.saltLength !== undefined) { + parts.push(asn1.create(asn1.Class.CONTEXT_SPECIFIC, 2, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(params.saltLength).getBytes()) + ])); + } + + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, parts); + + default: + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.NULL, false, ''); + } +} + +/** + * Converts a certification request's attributes to an ASN.1 set of + * CRIAttributes. + * + * @param csr certification request. + * + * @return the ASN.1 set of CRIAttributes. + */ +function _CRIAttributesToAsn1(csr) { + // create an empty context-specific container + var rval = asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, []); + + // no attributes, return empty container + if(csr.attributes.length === 0) { + return rval; + } + + // each attribute has a sequence with a type and a set of values + var attrs = csr.attributes; + for(var i = 0; i < attrs.length; ++i) { + var attr = attrs[i]; + var value = attr.value; + + // reuse tag class for attribute value if available + var valueTagClass = asn1.Type.UTF8; + if('valueTagClass' in attr) { + valueTagClass = attr.valueTagClass; + } + if(valueTagClass === asn1.Type.UTF8) { + value = forge.util.encodeUtf8(value); + } + var valueConstructed = false; + if('valueConstructed' in attr) { + valueConstructed = attr.valueConstructed; + } + // FIXME: handle more encodings + + // create a RelativeDistinguishedName set + // each value in the set is an AttributeTypeAndValue first + // containing the type (an OID) and second the value + var seq = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // AttributeType + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(attr.type).getBytes()), + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SET, true, [ + // AttributeValue + asn1.create( + asn1.Class.UNIVERSAL, valueTagClass, valueConstructed, value) + ]) + ]); + rval.value.push(seq); + } + + return rval; +} + +var jan_1_1950 = new Date('1950-01-01T00:00:00Z'); +var jan_1_2050 = new Date('2050-01-01T00:00:00Z'); + +/** + * Converts a Date object to ASN.1 + * Handles the different format before and after 1st January 2050 + * + * @param date date object. + * + * @return the ASN.1 object representing the date. + */ +function _dateToAsn1(date) { + if(date >= jan_1_1950 && date < jan_1_2050) { + return asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.UTCTIME, false, + asn1.dateToUtcTime(date)); + } else { + return asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.GENERALIZEDTIME, false, + asn1.dateToGeneralizedTime(date)); + } +} + +/** + * Gets the ASN.1 TBSCertificate part of an X.509v3 certificate. + * + * @param cert the certificate. + * + * @return the asn1 TBSCertificate. + */ +pki.getTBSCertificate = function(cert) { + // TBSCertificate + var notBefore = _dateToAsn1(cert.validity.notBefore); + var notAfter = _dateToAsn1(cert.validity.notAfter); + var tbs = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // version + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 0, true, [ + // integer + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(cert.version).getBytes()) + ]), + // serialNumber + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + forge.util.hexToBytes(cert.serialNumber)), + // signature + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(cert.siginfo.algorithmOid).getBytes()), + // parameters + _signatureParametersToAsn1( + cert.siginfo.algorithmOid, cert.siginfo.parameters) + ]), + // issuer + _dnToAsn1(cert.issuer), + // validity + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + notBefore, + notAfter + ]), + // subject + _dnToAsn1(cert.subject), + // SubjectPublicKeyInfo + pki.publicKeyToAsn1(cert.publicKey) + ]); + + if(cert.issuer.uniqueId) { + // issuerUniqueID (optional) + tbs.value.push( + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 1, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, + // TODO: support arbitrary bit length ids + String.fromCharCode(0x00) + + cert.issuer.uniqueId + ) + ]) + ); + } + if(cert.subject.uniqueId) { + // subjectUniqueID (optional) + tbs.value.push( + asn1.create(asn1.Class.CONTEXT_SPECIFIC, 2, true, [ + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, + // TODO: support arbitrary bit length ids + String.fromCharCode(0x00) + + cert.subject.uniqueId + ) + ]) + ); + } + + if(cert.extensions.length > 0) { + // extensions (optional) + tbs.value.push(pki.certificateExtensionsToAsn1(cert.extensions)); + } + + return tbs; +}; + +/** + * Gets the ASN.1 CertificationRequestInfo part of a + * PKCS#10 CertificationRequest. + * + * @param csr the certification request. + * + * @return the asn1 CertificationRequestInfo. + */ +pki.getCertificationRequestInfo = function(csr) { + // CertificationRequestInfo + var cri = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // version + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.INTEGER, false, + asn1.integerToDer(csr.version).getBytes()), + // subject + _dnToAsn1(csr.subject), + // SubjectPublicKeyInfo + pki.publicKeyToAsn1(csr.publicKey), + // attributes + _CRIAttributesToAsn1(csr) + ]); + + return cri; +}; + +/** + * Converts a DistinguishedName (subject or issuer) to an ASN.1 object. + * + * @param dn the DistinguishedName. + * + * @return the asn1 representation of a DistinguishedName. + */ +pki.distinguishedNameToAsn1 = function(dn) { + return _dnToAsn1(dn); +}; + +/** + * Converts an X.509v3 RSA certificate to an ASN.1 object. + * + * @param cert the certificate. + * + * @return the asn1 representation of an X.509v3 RSA certificate. + */ +pki.certificateToAsn1 = function(cert) { + // prefer cached TBSCertificate over generating one + var tbsCertificate = cert.tbsCertificate || pki.getTBSCertificate(cert); + + // Certificate + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // TBSCertificate + tbsCertificate, + // AlgorithmIdentifier (signature algorithm) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(cert.signatureOid).getBytes()), + // parameters + _signatureParametersToAsn1(cert.signatureOid, cert.signatureParameters) + ]), + // SignatureValue + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, + String.fromCharCode(0x00) + cert.signature) + ]); +}; + +/** + * Converts X.509v3 certificate extensions to ASN.1. + * + * @param exts the extensions to convert. + * + * @return the extensions in ASN.1 format. + */ +pki.certificateExtensionsToAsn1 = function(exts) { + // create top-level extension container + var rval = asn1.create(asn1.Class.CONTEXT_SPECIFIC, 3, true, []); + + // create extension sequence (stores a sequence for each extension) + var seq = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + rval.value.push(seq); + + for(var i = 0; i < exts.length; ++i) { + seq.value.push(pki.certificateExtensionToAsn1(exts[i])); + } + + return rval; +}; + +/** + * Converts a single certificate extension to ASN.1. + * + * @param ext the extension to convert. + * + * @return the extension in ASN.1 format. + */ +pki.certificateExtensionToAsn1 = function(ext) { + // create a sequence for each extension + var extseq = asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, []); + + // extnID (OID) + extseq.value.push(asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(ext.id).getBytes())); + + // critical defaults to false + if(ext.critical) { + // critical BOOLEAN DEFAULT FALSE + extseq.value.push(asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.BOOLEAN, false, + String.fromCharCode(0xFF))); + } + + var value = ext.value; + if(typeof ext.value !== 'string') { + // value is asn.1 + value = asn1.toDer(value).getBytes(); + } + + // extnValue (OCTET STRING) + extseq.value.push(asn1.create( + asn1.Class.UNIVERSAL, asn1.Type.OCTETSTRING, false, value)); + + return extseq; +}; + +/** + * Converts a PKCS#10 certification request to an ASN.1 object. + * + * @param csr the certification request. + * + * @return the asn1 representation of a certification request. + */ +pki.certificationRequestToAsn1 = function(csr) { + // prefer cached CertificationRequestInfo over generating one + var cri = csr.certificationRequestInfo || + pki.getCertificationRequestInfo(csr); + + // Certificate + return asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // CertificationRequestInfo + cri, + // AlgorithmIdentifier (signature algorithm) + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.SEQUENCE, true, [ + // algorithm + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.OID, false, + asn1.oidToDer(csr.signatureOid).getBytes()), + // parameters + _signatureParametersToAsn1(csr.signatureOid, csr.signatureParameters) + ]), + // signature + asn1.create(asn1.Class.UNIVERSAL, asn1.Type.BITSTRING, false, + String.fromCharCode(0x00) + csr.signature) + ]); +}; + +/** + * Creates a CA store. + * + * @param certs an optional array of certificate objects or PEM-formatted + * certificate strings to add to the CA store. + * + * @return the CA store. + */ +pki.createCaStore = function(certs) { + // create CA store + var caStore = { + // stored certificates + certs: {} + }; + + /** + * Gets the certificate that issued the passed certificate or its + * 'parent'. + * + * @param cert the certificate to get the parent for. + * + * @return the parent certificate or null if none was found. + */ + caStore.getIssuer = function(cert) { + var rval = getBySubject(cert.issuer); + + // see if there are multiple matches + /*if(forge.util.isArray(rval)) { + // TODO: resolve multiple matches by checking + // authorityKey/subjectKey/issuerUniqueID/other identifiers, etc. + // FIXME: or alternatively do authority key mapping + // if possible (X.509v1 certs can't work?) + throw new Error('Resolving multiple issuer matches not implemented yet.'); + }*/ + + return rval; + }; + + /** + * Adds a trusted certificate to the store. + * + * @param cert the certificate to add as a trusted certificate (either a + * pki.certificate object or a PEM-formatted certificate). + */ + caStore.addCertificate = function(cert) { + // convert from pem if necessary + if(typeof cert === 'string') { + cert = forge.pki.certificateFromPem(cert); + } + + ensureSubjectHasHash(cert.subject); + + if(!caStore.hasCertificate(cert)) { // avoid duplicate certificates in store + if(cert.subject.hash in caStore.certs) { + // subject hash already exists, append to array + var tmp = caStore.certs[cert.subject.hash]; + if(!forge.util.isArray(tmp)) { + tmp = [tmp]; + } + tmp.push(cert); + caStore.certs[cert.subject.hash] = tmp; + } else { + caStore.certs[cert.subject.hash] = cert; + } + } + }; + + /** + * Checks to see if the given certificate is in the store. + * + * @param cert the certificate to check (either a pki.certificate or a + * PEM-formatted certificate). + * + * @return true if the certificate is in the store, false if not. + */ + caStore.hasCertificate = function(cert) { + // convert from pem if necessary + if(typeof cert === 'string') { + cert = forge.pki.certificateFromPem(cert); + } + + var match = getBySubject(cert.subject); + if(!match) { + return false; + } + if(!forge.util.isArray(match)) { + match = [match]; + } + // compare DER-encoding of certificates + var der1 = asn1.toDer(pki.certificateToAsn1(cert)).getBytes(); + for(var i = 0; i < match.length; ++i) { + var der2 = asn1.toDer(pki.certificateToAsn1(match[i])).getBytes(); + if(der1 === der2) { + return true; + } + } + return false; + }; + + /** + * Lists all of the certificates kept in the store. + * + * @return an array of all of the pki.certificate objects in the store. + */ + caStore.listAllCertificates = function() { + var certList = []; + + for(var hash in caStore.certs) { + if(caStore.certs.hasOwnProperty(hash)) { + var value = caStore.certs[hash]; + if(!forge.util.isArray(value)) { + certList.push(value); + } else { + for(var i = 0; i < value.length; ++i) { + certList.push(value[i]); + } + } + } + } + + return certList; + }; + + /** + * Removes a certificate from the store. + * + * @param cert the certificate to remove (either a pki.certificate or a + * PEM-formatted certificate). + * + * @return the certificate that was removed or null if the certificate + * wasn't in store. + */ + caStore.removeCertificate = function(cert) { + var result; + + // convert from pem if necessary + if(typeof cert === 'string') { + cert = forge.pki.certificateFromPem(cert); + } + ensureSubjectHasHash(cert.subject); + if(!caStore.hasCertificate(cert)) { + return null; + } + + var match = getBySubject(cert.subject); + + if(!forge.util.isArray(match)) { + result = caStore.certs[cert.subject.hash]; + delete caStore.certs[cert.subject.hash]; + return result; + } + + // compare DER-encoding of certificates + var der1 = asn1.toDer(pki.certificateToAsn1(cert)).getBytes(); + for(var i = 0; i < match.length; ++i) { + var der2 = asn1.toDer(pki.certificateToAsn1(match[i])).getBytes(); + if(der1 === der2) { + result = match[i]; + match.splice(i, 1); + } + } + if(match.length === 0) { + delete caStore.certs[cert.subject.hash]; + } + + return result; + }; + + function getBySubject(subject) { + ensureSubjectHasHash(subject); + return caStore.certs[subject.hash] || null; + } + + function ensureSubjectHasHash(subject) { + // produce subject hash if it doesn't exist + if(!subject.hash) { + var md = forge.md.sha1.create(); + subject.attributes = pki.RDNAttributesAsArray(_dnToAsn1(subject), md); + subject.hash = md.digest().toHex(); + } + } + + // auto-add passed in certs + if(certs) { + // parse PEM-formatted certificates as necessary + for(var i = 0; i < certs.length; ++i) { + var cert = certs[i]; + caStore.addCertificate(cert); + } + } + + return caStore; +}; + +/** + * Certificate verification errors, based on TLS. + */ +pki.certificateError = { + bad_certificate: 'forge.pki.BadCertificate', + unsupported_certificate: 'forge.pki.UnsupportedCertificate', + certificate_revoked: 'forge.pki.CertificateRevoked', + certificate_expired: 'forge.pki.CertificateExpired', + certificate_unknown: 'forge.pki.CertificateUnknown', + unknown_ca: 'forge.pki.UnknownCertificateAuthority' +}; + +/** + * Verifies a certificate chain against the given Certificate Authority store + * with an optional custom verify callback. + * + * @param caStore a certificate store to verify against. + * @param chain the certificate chain to verify, with the root or highest + * authority at the end (an array of certificates). + * @param options a callback to be called for every certificate in the chain or + * an object with: + * verify a callback to be called for every certificate in the + * chain + * validityCheckDate the date against which the certificate + * validity period should be checked. Pass null to not check + * the validity period. By default, the current date is used. + * + * The verify callback has the following signature: + * + * verified - Set to true if certificate was verified, otherwise the + * pki.certificateError for why the certificate failed. + * depth - The current index in the chain, where 0 is the end point's cert. + * certs - The certificate chain, *NOTE* an empty chain indicates an anonymous + * end point. + * + * The function returns true on success and on failure either the appropriate + * pki.certificateError or an object with 'error' set to the appropriate + * pki.certificateError and 'message' set to a custom error message. + * + * @return true if successful, error thrown if not. + */ +pki.verifyCertificateChain = function(caStore, chain, options) { + /* From: RFC3280 - Internet X.509 Public Key Infrastructure Certificate + Section 6: Certification Path Validation + See inline parentheticals related to this particular implementation. + + The primary goal of path validation is to verify the binding between + a subject distinguished name or a subject alternative name and subject + public key, as represented in the end entity certificate, based on the + public key of the trust anchor. This requires obtaining a sequence of + certificates that support that binding. That sequence should be provided + in the passed 'chain'. The trust anchor should be in the given CA + store. The 'end entity' certificate is the certificate provided by the + end point (typically a server) and is the first in the chain. + + To meet this goal, the path validation process verifies, among other + things, that a prospective certification path (a sequence of n + certificates or a 'chain') satisfies the following conditions: + + (a) for all x in {1, ..., n-1}, the subject of certificate x is + the issuer of certificate x+1; + + (b) certificate 1 is issued by the trust anchor; + + (c) certificate n is the certificate to be validated; and + + (d) for all x in {1, ..., n}, the certificate was valid at the + time in question. + + Note that here 'n' is index 0 in the chain and 1 is the last certificate + in the chain and it must be signed by a certificate in the connection's + CA store. + + The path validation process also determines the set of certificate + policies that are valid for this path, based on the certificate policies + extension, policy mapping extension, policy constraints extension, and + inhibit any-policy extension. + + Note: Policy mapping extension not supported (Not Required). + + Note: If the certificate has an unsupported critical extension, then it + must be rejected. + + Note: A certificate is self-issued if the DNs that appear in the subject + and issuer fields are identical and are not empty. + + The path validation algorithm assumes the following seven inputs are + provided to the path processing logic. What this specific implementation + will use is provided parenthetically: + + (a) a prospective certification path of length n (the 'chain') + (b) the current date/time: ('now'). + (c) user-initial-policy-set: A set of certificate policy identifiers + naming the policies that are acceptable to the certificate user. + The user-initial-policy-set contains the special value any-policy + if the user is not concerned about certificate policy + (Not implemented. Any policy is accepted). + (d) trust anchor information, describing a CA that serves as a trust + anchor for the certification path. The trust anchor information + includes: + + (1) the trusted issuer name, + (2) the trusted public key algorithm, + (3) the trusted public key, and + (4) optionally, the trusted public key parameters associated + with the public key. + + (Trust anchors are provided via certificates in the CA store). + + The trust anchor information may be provided to the path processing + procedure in the form of a self-signed certificate. The trusted anchor + information is trusted because it was delivered to the path processing + procedure by some trustworthy out-of-band procedure. If the trusted + public key algorithm requires parameters, then the parameters are + provided along with the trusted public key (No parameters used in this + implementation). + + (e) initial-policy-mapping-inhibit, which indicates if policy mapping is + allowed in the certification path. + (Not implemented, no policy checking) + + (f) initial-explicit-policy, which indicates if the path must be valid + for at least one of the certificate policies in the user-initial- + policy-set. + (Not implemented, no policy checking) + + (g) initial-any-policy-inhibit, which indicates whether the + anyPolicy OID should be processed if it is included in a + certificate. + (Not implemented, so any policy is valid provided that it is + not marked as critical) */ + + /* Basic Path Processing: + + For each certificate in the 'chain', the following is checked: + + 1. The certificate validity period includes the current time. + 2. The certificate was signed by its parent (where the parent is either + the next in the chain or from the CA store). Allow processing to + continue to the next step if no parent is found but the certificate is + in the CA store. + 3. TODO: The certificate has not been revoked. + 4. The certificate issuer name matches the parent's subject name. + 5. TODO: If the certificate is self-issued and not the final certificate + in the chain, skip this step, otherwise verify that the subject name + is within one of the permitted subtrees of X.500 distinguished names + and that each of the alternative names in the subjectAltName extension + (critical or non-critical) is within one of the permitted subtrees for + that name type. + 6. TODO: If the certificate is self-issued and not the final certificate + in the chain, skip this step, otherwise verify that the subject name + is not within one of the excluded subtrees for X.500 distinguished + names and none of the subjectAltName extension names are excluded for + that name type. + 7. The other steps in the algorithm for basic path processing involve + handling the policy extension which is not presently supported in this + implementation. Instead, if a critical policy extension is found, the + certificate is rejected as not supported. + 8. If the certificate is not the first or if its the only certificate in + the chain (having no parent from the CA store or is self-signed) and it + has a critical key usage extension, verify that the keyCertSign bit is + set. If the key usage extension exists, verify that the basic + constraints extension exists. If the basic constraints extension exists, + verify that the cA flag is set. If pathLenConstraint is set, ensure that + the number of certificates that precede in the chain (come earlier + in the chain as implemented below), excluding the very first in the + chain (typically the end-entity one), isn't greater than the + pathLenConstraint. This constraint limits the number of intermediate + CAs that may appear below a CA before only end-entity certificates + may be issued. */ + + // if a verify callback is passed as the third parameter, package it within + // the options object. This is to support a legacy function signature that + // expected the verify callback as the third parameter. + if(typeof options === 'function') { + options = {verify: options}; + } + options = options || {}; + + // copy cert chain references to another array to protect against changes + // in verify callback + chain = chain.slice(0); + var certs = chain.slice(0); + + var validityCheckDate = options.validityCheckDate; + // if no validityCheckDate is specified, default to the current date. Make + // sure to maintain the value null because it indicates that the validity + // period should not be checked. + if(typeof validityCheckDate === 'undefined') { + validityCheckDate = new Date(); + } + + // verify each cert in the chain using its parent, where the parent + // is either the next in the chain or from the CA store + var first = true; + var error = null; + var depth = 0; + do { + var cert = chain.shift(); + var parent = null; + var selfSigned = false; + + if(validityCheckDate) { + // 1. check valid time + if(validityCheckDate < cert.validity.notBefore || + validityCheckDate > cert.validity.notAfter) { + error = { + message: 'Certificate is not valid yet or has expired.', + error: pki.certificateError.certificate_expired, + notBefore: cert.validity.notBefore, + notAfter: cert.validity.notAfter, + // TODO: we might want to reconsider renaming 'now' to + // 'validityCheckDate' should this API be changed in the future. + now: validityCheckDate + }; + } + } + + // 2. verify with parent from chain or CA store + if(error === null) { + parent = chain[0] || caStore.getIssuer(cert); + if(parent === null) { + // check for self-signed cert + if(cert.isIssuer(cert)) { + selfSigned = true; + parent = cert; + } + } + + if(parent) { + // FIXME: current CA store implementation might have multiple + // certificates where the issuer can't be determined from the + // certificate (happens rarely with, eg: old certificates) so normalize + // by always putting parents into an array + // TODO: there's may be an extreme degenerate case currently uncovered + // where an old intermediate certificate seems to have a matching parent + // but none of the parents actually verify ... but the intermediate + // is in the CA and it should pass this check; needs investigation + var parents = parent; + if(!forge.util.isArray(parents)) { + parents = [parents]; + } + + // try to verify with each possible parent (typically only one) + var verified = false; + while(!verified && parents.length > 0) { + parent = parents.shift(); + try { + verified = parent.verify(cert); + } catch(ex) { + // failure to verify, don't care why, try next one + } + } + + if(!verified) { + error = { + message: 'Certificate signature is invalid.', + error: pki.certificateError.bad_certificate + }; + } + } + + if(error === null && (!parent || selfSigned) && + !caStore.hasCertificate(cert)) { + // no parent issuer and certificate itself is not trusted + error = { + message: 'Certificate is not trusted.', + error: pki.certificateError.unknown_ca + }; + } + } + + // TODO: 3. check revoked + + // 4. check for matching issuer/subject + if(error === null && parent && !cert.isIssuer(parent)) { + // parent is not issuer + error = { + message: 'Certificate issuer is invalid.', + error: pki.certificateError.bad_certificate + }; + } + + // 5. TODO: check names with permitted names tree + + // 6. TODO: check names against excluded names tree + + // 7. check for unsupported critical extensions + if(error === null) { + // supported extensions + var se = { + keyUsage: true, + basicConstraints: true + }; + for(var i = 0; error === null && i < cert.extensions.length; ++i) { + var ext = cert.extensions[i]; + if(ext.critical && !(ext.name in se)) { + error = { + message: + 'Certificate has an unsupported critical extension.', + error: pki.certificateError.unsupported_certificate + }; + } + } + } + + // 8. check for CA if cert is not first or is the only certificate + // remaining in chain with no parent or is self-signed + if(error === null && + (!first || (chain.length === 0 && (!parent || selfSigned)))) { + // first check keyUsage extension and then basic constraints + var bcExt = cert.getExtension('basicConstraints'); + var keyUsageExt = cert.getExtension('keyUsage'); + if(keyUsageExt !== null) { + // keyCertSign must be true and there must be a basic + // constraints extension + if(!keyUsageExt.keyCertSign || bcExt === null) { + // bad certificate + error = { + message: + 'Certificate keyUsage or basicConstraints conflict ' + + 'or indicate that the certificate is not a CA. ' + + 'If the certificate is the only one in the chain or ' + + 'isn\'t the first then the certificate must be a ' + + 'valid CA.', + error: pki.certificateError.bad_certificate + }; + } + } + // basic constraints cA flag must be set + if(error === null && bcExt !== null && !bcExt.cA) { + // bad certificate + error = { + message: + 'Certificate basicConstraints indicates the certificate ' + + 'is not a CA.', + error: pki.certificateError.bad_certificate + }; + } + // if error is not null and keyUsage is available, then we know it + // has keyCertSign and there is a basic constraints extension too, + // which means we can check pathLenConstraint (if it exists) + if(error === null && keyUsageExt !== null && + 'pathLenConstraint' in bcExt) { + // pathLen is the maximum # of intermediate CA certs that can be + // found between the current certificate and the end-entity (depth 0) + // certificate; this number does not include the end-entity (depth 0, + // last in the chain) even if it happens to be a CA certificate itself + var pathLen = depth - 1; + if(pathLen > bcExt.pathLenConstraint) { + // pathLenConstraint violated, bad certificate + error = { + message: + 'Certificate basicConstraints pathLenConstraint violated.', + error: pki.certificateError.bad_certificate + }; + } + } + } + + // call application callback + var vfd = (error === null) ? true : error.error; + var ret = options.verify ? options.verify(vfd, depth, certs) : vfd; + if(ret === true) { + // clear any set error + error = null; + } else { + // if passed basic tests, set default message and alert + if(vfd === true) { + error = { + message: 'The application rejected the certificate.', + error: pki.certificateError.bad_certificate + }; + } + + // check for custom error info + if(ret || ret === 0) { + // set custom message and error + if(typeof ret === 'object' && !forge.util.isArray(ret)) { + if(ret.message) { + error.message = ret.message; + } + if(ret.error) { + error.error = ret.error; + } + } else if(typeof ret === 'string') { + // set custom error + error.error = ret; + } + } + + // throw error + throw error; + } + + // no longer first cert in chain + first = false; + ++depth; + } while(chain.length > 0); + + return true; +}; diff --git a/node_modules/node-forge/lib/xhr.js b/node_modules/node-forge/lib/xhr.js new file mode 100644 index 0000000..fa92835 --- /dev/null +++ b/node_modules/node-forge/lib/xhr.js @@ -0,0 +1,738 @@ +/** + * XmlHttpRequest implementation that uses TLS and flash SocketPool. + * + * @author Dave Longley + * + * Copyright (c) 2010-2013 Digital Bazaar, Inc. + */ +var forge = require('./forge'); +require('./socket'); +require('./http'); + +/* XHR API */ +var xhrApi = module.exports = forge.xhr = forge.xhr || {}; + +(function($) { + +// logging category +var cat = 'forge.xhr'; + +/* +XMLHttpRequest interface definition from: +http://www.w3.org/TR/XMLHttpRequest + +interface XMLHttpRequest { + // event handler + attribute EventListener onreadystatechange; + + // state + const unsigned short UNSENT = 0; + const unsigned short OPENED = 1; + const unsigned short HEADERS_RECEIVED = 2; + const unsigned short LOADING = 3; + const unsigned short DONE = 4; + readonly attribute unsigned short readyState; + + // request + void open(in DOMString method, in DOMString url); + void open(in DOMString method, in DOMString url, in boolean async); + void open(in DOMString method, in DOMString url, + in boolean async, in DOMString user); + void open(in DOMString method, in DOMString url, + in boolean async, in DOMString user, in DOMString password); + void setRequestHeader(in DOMString header, in DOMString value); + void send(); + void send(in DOMString data); + void send(in Document data); + void abort(); + + // response + DOMString getAllResponseHeaders(); + DOMString getResponseHeader(in DOMString header); + readonly attribute DOMString responseText; + readonly attribute Document responseXML; + readonly attribute unsigned short status; + readonly attribute DOMString statusText; +}; +*/ + +// readyStates +var UNSENT = 0; +var OPENED = 1; +var HEADERS_RECEIVED = 2; +var LOADING = 3; +var DONE = 4; + +// exceptions +var INVALID_STATE_ERR = 11; +var SYNTAX_ERR = 12; +var SECURITY_ERR = 18; +var NETWORK_ERR = 19; +var ABORT_ERR = 20; + +// private flash socket pool vars +var _sp = null; +var _policyPort = 0; +var _policyUrl = null; + +// default client (used if no special URL provided when creating an XHR) +var _client = null; + +// all clients including the default, key'd by full base url +// (multiple cross-domain http clients are permitted so there may be more +// than one client in this map) +// TODO: provide optional clean up API for non-default clients +var _clients = {}; + +// the default maximum number of concurrents connections per client +var _maxConnections = 10; + +var net = forge.net; +var http = forge.http; + +/** + * Initializes flash XHR support. + * + * @param options: + * url: the default base URL to connect to if xhr URLs are relative, + * ie: https://myserver.com. + * flashId: the dom ID of the flash SocketPool. + * policyPort: the port that provides the server's flash policy, 0 to use + * the flash default. + * policyUrl: the policy file URL to use instead of a policy port. + * msie: true if browser is internet explorer, false if not. + * connections: the maximum number of concurrent connections. + * caCerts: a list of PEM-formatted certificates to trust. + * cipherSuites: an optional array of cipher suites to use, + * see forge.tls.CipherSuites. + * verify: optional TLS certificate verify callback to use (see forge.tls + * for details). + * getCertificate: an optional callback used to get a client-side + * certificate (see forge.tls for details). + * getPrivateKey: an optional callback used to get a client-side private + * key (see forge.tls for details). + * getSignature: an optional callback used to get a client-side signature + * (see forge.tls for details). + * persistCookies: true to use persistent cookies via flash local storage, + * false to only keep cookies in javascript. + * primeTlsSockets: true to immediately connect TLS sockets on their + * creation so that they will cache TLS sessions for reuse. + */ +xhrApi.init = function(options) { + forge.log.debug(cat, 'initializing', options); + + // update default policy port and max connections + _policyPort = options.policyPort || _policyPort; + _policyUrl = options.policyUrl || _policyUrl; + _maxConnections = options.connections || _maxConnections; + + // create the flash socket pool + _sp = net.createSocketPool({ + flashId: options.flashId, + policyPort: _policyPort, + policyUrl: _policyUrl, + msie: options.msie || false + }); + + // create default http client + _client = http.createClient({ + url: options.url || ( + window.location.protocol + '//' + window.location.host), + socketPool: _sp, + policyPort: _policyPort, + policyUrl: _policyUrl, + connections: options.connections || _maxConnections, + caCerts: options.caCerts, + cipherSuites: options.cipherSuites, + persistCookies: options.persistCookies || true, + primeTlsSockets: options.primeTlsSockets || false, + verify: options.verify, + getCertificate: options.getCertificate, + getPrivateKey: options.getPrivateKey, + getSignature: options.getSignature + }); + _clients[_client.url.origin] = _client; + + forge.log.debug(cat, 'ready'); +}; + +/** + * Called to clean up the clients and socket pool. + */ +xhrApi.cleanup = function() { + // destroy all clients + for(var key in _clients) { + _clients[key].destroy(); + } + _clients = {}; + _client = null; + + // destroy socket pool + _sp.destroy(); + _sp = null; +}; + +/** + * Sets a cookie. + * + * @param cookie the cookie with parameters: + * name: the name of the cookie. + * value: the value of the cookie. + * comment: an optional comment string. + * maxAge: the age of the cookie in seconds relative to created time. + * secure: true if the cookie must be sent over a secure protocol. + * httpOnly: true to restrict access to the cookie from javascript + * (inaffective since the cookies are stored in javascript). + * path: the path for the cookie. + * domain: optional domain the cookie belongs to (must start with dot). + * version: optional version of the cookie. + * created: creation time, in UTC seconds, of the cookie. + */ +xhrApi.setCookie = function(cookie) { + // default cookie expiration to never + cookie.maxAge = cookie.maxAge || -1; + + // if the cookie's domain is set, use the appropriate client + if(cookie.domain) { + // add the cookies to the applicable domains + for(var key in _clients) { + var client = _clients[key]; + if(http.withinCookieDomain(client.url, cookie) && + client.secure === cookie.secure) { + client.setCookie(cookie); + } + } + } else { + // use the default domain + // FIXME: should a null domain cookie be added to all clients? should + // this be an option? + _client.setCookie(cookie); + } +}; + +/** + * Gets a cookie. + * + * @param name the name of the cookie. + * @param path an optional path for the cookie (if there are multiple cookies + * with the same name but different paths). + * @param domain an optional domain for the cookie (if not using the default + * domain). + * + * @return the cookie, cookies (if multiple matches), or null if not found. + */ +xhrApi.getCookie = function(name, path, domain) { + var rval = null; + + if(domain) { + // get the cookies from the applicable domains + for(var key in _clients) { + var client = _clients[key]; + if(http.withinCookieDomain(client.url, domain)) { + var cookie = client.getCookie(name, path); + if(cookie !== null) { + if(rval === null) { + rval = cookie; + } else if(!forge.util.isArray(rval)) { + rval = [rval, cookie]; + } else { + rval.push(cookie); + } + } + } + } + } else { + // get cookie from default domain + rval = _client.getCookie(name, path); + } + + return rval; +}; + +/** + * Removes a cookie. + * + * @param name the name of the cookie. + * @param path an optional path for the cookie (if there are multiple cookies + * with the same name but different paths). + * @param domain an optional domain for the cookie (if not using the default + * domain). + * + * @return true if a cookie was removed, false if not. + */ +xhrApi.removeCookie = function(name, path, domain) { + var rval = false; + + if(domain) { + // remove the cookies from the applicable domains + for(var key in _clients) { + var client = _clients[key]; + if(http.withinCookieDomain(client.url, domain)) { + if(client.removeCookie(name, path)) { + rval = true; + } + } + } + } else { + // remove cookie from default domain + rval = _client.removeCookie(name, path); + } + + return rval; +}; + +/** + * Creates a new XmlHttpRequest. By default the base URL, flash policy port, + * etc, will be used. However, an XHR can be created to point at another + * cross-domain URL. + * + * @param options: + * logWarningOnError: If true and an HTTP error status code is received then + * log a warning, otherwise log a verbose message. + * verbose: If true be very verbose in the output including the response + * event and response body, otherwise only include status, timing, and + * data size. + * logError: a multi-var log function for warnings that takes the log + * category as the first var. + * logWarning: a multi-var log function for warnings that takes the log + * category as the first var. + * logDebug: a multi-var log function for warnings that takes the log + * category as the first var. + * logVerbose: a multi-var log function for warnings that takes the log + * category as the first var. + * url: the default base URL to connect to if xhr URLs are relative, + * eg: https://myserver.com, and note that the following options will be + * ignored if the URL is absent or the same as the default base URL. + * policyPort: the port that provides the server's flash policy, 0 to use + * the flash default. + * policyUrl: the policy file URL to use instead of a policy port. + * connections: the maximum number of concurrent connections. + * caCerts: a list of PEM-formatted certificates to trust. + * cipherSuites: an optional array of cipher suites to use, see + * forge.tls.CipherSuites. + * verify: optional TLS certificate verify callback to use (see forge.tls + * for details). + * getCertificate: an optional callback used to get a client-side + * certificate. + * getPrivateKey: an optional callback used to get a client-side private key. + * getSignature: an optional callback used to get a client-side signature. + * persistCookies: true to use persistent cookies via flash local storage, + * false to only keep cookies in javascript. + * primeTlsSockets: true to immediately connect TLS sockets on their + * creation so that they will cache TLS sessions for reuse. + * + * @return the XmlHttpRequest. + */ +xhrApi.create = function(options) { + // set option defaults + options = $.extend({ + logWarningOnError: true, + verbose: false, + logError: function() {}, + logWarning: function() {}, + logDebug: function() {}, + logVerbose: function() {}, + url: null + }, options || {}); + + // private xhr state + var _state = { + // the http client to use + client: null, + // request storage + request: null, + // response storage + response: null, + // asynchronous, true if doing asynchronous communication + asynchronous: true, + // sendFlag, true if send has been called + sendFlag: false, + // errorFlag, true if a network error occurred + errorFlag: false + }; + + // private log functions + var _log = { + error: options.logError || forge.log.error, + warning: options.logWarning || forge.log.warning, + debug: options.logDebug || forge.log.debug, + verbose: options.logVerbose || forge.log.verbose + }; + + // create public xhr interface + var xhr = { + // an EventListener + onreadystatechange: null, + // readonly, the current readyState + readyState: UNSENT, + // a string with the response entity-body + responseText: '', + // a Document for response entity-bodies that are XML + responseXML: null, + // readonly, returns the HTTP status code (i.e. 404) + status: 0, + // readonly, returns the HTTP status message (i.e. 'Not Found') + statusText: '' + }; + + // determine which http client to use + if(options.url === null) { + // use default + _state.client = _client; + } else { + var url; + try { + url = new URL(options.url); + } catch(e) { + var error = new Error('Invalid url.'); + error.details = { + url: options.url + }; + } + + // find client + if(url.origin in _clients) { + // client found + _state.client = _clients[url.origin]; + } else { + // create client + _state.client = http.createClient({ + url: options.url, + socketPool: _sp, + policyPort: options.policyPort || _policyPort, + policyUrl: options.policyUrl || _policyUrl, + connections: options.connections || _maxConnections, + caCerts: options.caCerts, + cipherSuites: options.cipherSuites, + persistCookies: options.persistCookies || true, + primeTlsSockets: options.primeTlsSockets || false, + verify: options.verify, + getCertificate: options.getCertificate, + getPrivateKey: options.getPrivateKey, + getSignature: options.getSignature + }); + _clients[url.origin] = _state.client; + } + } + + /** + * Opens the request. This method will create the HTTP request to send. + * + * @param method the HTTP method (i.e. 'GET'). + * @param url the relative url (the HTTP request path). + * @param async always true, ignored. + * @param user always null, ignored. + * @param password always null, ignored. + */ + xhr.open = function(method, url, async, user, password) { + // 1. validate Document if one is associated + // TODO: not implemented (not used yet) + + // 2. validate method token + // 3. change method to uppercase if it matches a known + // method (here we just require it to be uppercase, and + // we do not allow the standard methods) + // 4. disallow CONNECT, TRACE, or TRACK with a security error + switch(method) { + case 'DELETE': + case 'GET': + case 'HEAD': + case 'OPTIONS': + case 'PATCH': + case 'POST': + case 'PUT': + // valid method + break; + case 'CONNECT': + case 'TRACE': + case 'TRACK': + throw new Error('CONNECT, TRACE and TRACK methods are disallowed'); + default: + throw new Error('Invalid method: ' + method); + } + + // TODO: other validation steps in algorithm are not implemented + + // 19. set send flag to false + // set response body to null + // empty list of request headers + // set request method to given method + // set request URL + // set username, password + // set asychronous flag + _state.sendFlag = false; + xhr.responseText = ''; + xhr.responseXML = null; + + // custom: reset status and statusText + xhr.status = 0; + xhr.statusText = ''; + + // create the HTTP request + _state.request = http.createRequest({ + method: method, + path: url + }); + + // 20. set state to OPENED + xhr.readyState = OPENED; + + // 21. dispatch onreadystatechange + if(xhr.onreadystatechange) { + xhr.onreadystatechange(); + } + }; + + /** + * Adds an HTTP header field to the request. + * + * @param header the name of the header field. + * @param value the value of the header field. + */ + xhr.setRequestHeader = function(header, value) { + // 1. if state is not OPENED or send flag is true, raise exception + if(xhr.readyState != OPENED || _state.sendFlag) { + throw new Error('XHR not open or sending'); + } + + // TODO: other validation steps in spec aren't implemented + + // set header + _state.request.setField(header, value); + }; + + /** + * Sends the request and any associated data. + * + * @param data a string or Document object to send, null to send no data. + */ + xhr.send = function(data) { + // 1. if state is not OPENED or 2. send flag is true, raise + // an invalid state exception + if(xhr.readyState != OPENED || _state.sendFlag) { + throw new Error('XHR not open or sending'); + } + + // 3. ignore data if method is GET or HEAD + if(data && + _state.request.method !== 'GET' && + _state.request.method !== 'HEAD') { + // handle non-IE case + if(typeof(XMLSerializer) !== 'undefined') { + if(data instanceof Document) { + var xs = new XMLSerializer(); + _state.request.body = xs.serializeToString(data); + } else { + _state.request.body = data; + } + } else { + // poorly implemented IE case + if(typeof(data.xml) !== 'undefined') { + _state.request.body = data.xml; + } else { + _state.request.body = data; + } + } + } + + // 4. release storage mutex (not used) + + // 5. set error flag to false + _state.errorFlag = false; + + // 6. if asynchronous is true (must be in this implementation) + + // 6.1 set send flag to true + _state.sendFlag = true; + + // 6.2 dispatch onreadystatechange + if(xhr.onreadystatechange) { + xhr.onreadystatechange(); + } + + // create send options + var options = {}; + options.request = _state.request; + options.headerReady = function(e) { + // make cookies available for ease of use/iteration + xhr.cookies = _state.client.cookies; + + // TODO: update document.cookie with any cookies where the + // script's domain matches + + // headers received + xhr.readyState = HEADERS_RECEIVED; + xhr.status = e.response.code; + xhr.statusText = e.response.message; + _state.response = e.response; + if(xhr.onreadystatechange) { + xhr.onreadystatechange(); + } + if(!_state.response.aborted) { + // now loading body + xhr.readyState = LOADING; + if(xhr.onreadystatechange) { + xhr.onreadystatechange(); + } + } + }; + options.bodyReady = function(e) { + xhr.readyState = DONE; + var ct = e.response.getField('Content-Type'); + // Note: this null/undefined check is done outside because IE + // dies otherwise on a "'null' is null" error + if(ct) { + if(ct.indexOf('text/xml') === 0 || + ct.indexOf('application/xml') === 0 || + ct.indexOf('+xml') !== -1) { + try { + var doc = new ActiveXObject('MicrosoftXMLDOM'); + doc.async = false; + doc.loadXML(e.response.body); + xhr.responseXML = doc; + } catch(ex) { + var parser = new DOMParser(); + xhr.responseXML = parser.parseFromString(ex.body, 'text/xml'); + } + } + } + + var length = 0; + if(e.response.body !== null) { + xhr.responseText = e.response.body; + length = e.response.body.length; + } + // build logging output + var req = _state.request; + var output = + req.method + ' ' + req.path + ' ' + + xhr.status + ' ' + xhr.statusText + ' ' + + length + 'B ' + + (e.request.connectTime + e.request.time + e.response.time) + + 'ms'; + var lFunc; + if(options.verbose) { + lFunc = (xhr.status >= 400 && options.logWarningOnError) ? + _log.warning : _log.verbose; + lFunc(cat, output, + e, e.response.body ? '\n' + e.response.body : '\nNo content'); + } else { + lFunc = (xhr.status >= 400 && options.logWarningOnError) ? + _log.warning : _log.debug; + lFunc(cat, output); + } + if(xhr.onreadystatechange) { + xhr.onreadystatechange(); + } + }; + options.error = function(e) { + var req = _state.request; + _log.error(cat, req.method + ' ' + req.path, e); + + // 1. set response body to null + xhr.responseText = ''; + xhr.responseXML = null; + + // 2. set error flag to true (and reset status) + _state.errorFlag = true; + xhr.status = 0; + xhr.statusText = ''; + + // 3. set state to done + xhr.readyState = DONE; + + // 4. asyc flag is always true, so dispatch onreadystatechange + if(xhr.onreadystatechange) { + xhr.onreadystatechange(); + } + }; + + // 7. send request + _state.client.send(options); + }; + + /** + * Aborts the request. + */ + xhr.abort = function() { + // 1. abort send + // 2. stop network activity + _state.request.abort(); + + // 3. set response to null + xhr.responseText = ''; + xhr.responseXML = null; + + // 4. set error flag to true (and reset status) + _state.errorFlag = true; + xhr.status = 0; + xhr.statusText = ''; + + // 5. clear user headers + _state.request = null; + _state.response = null; + + // 6. if state is DONE or UNSENT, or if OPENED and send flag is false + if(xhr.readyState === DONE || xhr.readyState === UNSENT || + (xhr.readyState === OPENED && !_state.sendFlag)) { + // 7. set ready state to unsent + xhr.readyState = UNSENT; + } else { + // 6.1 set state to DONE + xhr.readyState = DONE; + + // 6.2 set send flag to false + _state.sendFlag = false; + + // 6.3 dispatch onreadystatechange + if(xhr.onreadystatechange) { + xhr.onreadystatechange(); + } + + // 7. set state to UNSENT + xhr.readyState = UNSENT; + } + }; + + /** + * Gets all response headers as a string. + * + * @return the HTTP-encoded response header fields. + */ + xhr.getAllResponseHeaders = function() { + var rval = ''; + if(_state.response !== null) { + var fields = _state.response.fields; + $.each(fields, function(name, array) { + $.each(array, function(i, value) { + rval += name + ': ' + value + '\r\n'; + }); + }); + } + return rval; + }; + + /** + * Gets a single header field value or, if there are multiple + * fields with the same name, a comma-separated list of header + * values. + * + * @return the header field value(s) or null. + */ + xhr.getResponseHeader = function(header) { + var rval = null; + if(_state.response !== null) { + if(header in _state.response.fields) { + rval = _state.response.fields[header]; + if(forge.util.isArray(rval)) { + rval = rval.join(); + } + } + } + return rval; + }; + + return xhr; +}; + +})(jQuery); diff --git a/node_modules/node-forge/package.json b/node_modules/node-forge/package.json new file mode 100644 index 0000000..1a63de1 --- /dev/null +++ b/node_modules/node-forge/package.json @@ -0,0 +1,123 @@ +{ + "name": "node-forge", + "version": "1.3.1", + "description": "JavaScript implementations of network transports, cryptography, ciphers, PKI, message digests, and various utilities.", + "homepage": "https://github.com/digitalbazaar/forge", + "author": { + "name": "Digital Bazaar, Inc.", + "email": "support@digitalbazaar.com", + "url": "http://digitalbazaar.com/" + }, + "contributors": [ + "Dave Longley ", + "David I. Lehn ", + "Stefan Siegl ", + "Christoph Dorn " + ], + "devDependencies": { + "browserify": "^16.5.2", + "commander": "^2.20.0", + "cross-env": "^5.2.1", + "eslint": "^7.27.0", + "eslint-config-digitalbazaar": "^2.8.0", + "express": "^4.16.2", + "karma": "^4.4.1", + "karma-browserify": "^7.0.0", + "karma-chrome-launcher": "^3.1.0", + "karma-edge-launcher": "^0.4.2", + "karma-firefox-launcher": "^1.3.0", + "karma-ie-launcher": "^1.0.0", + "karma-mocha": "^1.3.0", + "karma-mocha-reporter": "^2.2.5", + "karma-safari-launcher": "^1.0.0", + "karma-sauce-launcher": "^2.0.2", + "karma-sourcemap-loader": "^0.3.8", + "karma-tap-reporter": "0.0.6", + "karma-webpack": "^4.0.2", + "mocha": "^5.2.0", + "mocha-lcov-reporter": "^1.2.0", + "nodejs-websocket": "^1.7.1", + "nyc": "^15.1.0", + "opts": "^1.2.7", + "webpack": "^4.44.1", + "webpack-cli": "^3.3.12", + "worker-loader": "^2.0.0" + }, + "repository": { + "type": "git", + "url": "https://github.com/digitalbazaar/forge" + }, + "bugs": { + "url": "https://github.com/digitalbazaar/forge/issues", + "email": "support@digitalbazaar.com" + }, + "license": "(BSD-3-Clause OR GPL-2.0)", + "main": "lib/index.js", + "files": [ + "lib/*.js", + "flash/swf/*.swf", + "dist/*.min.js", + "dist/*.min.js.map" + ], + "engines": { + "node": ">= 6.13.0" + }, + "keywords": [ + "aes", + "asn", + "asn.1", + "cbc", + "crypto", + "cryptography", + "csr", + "des", + "gcm", + "hmac", + "http", + "https", + "md5", + "network", + "pkcs", + "pki", + "prng", + "rc2", + "rsa", + "sha1", + "sha256", + "sha384", + "sha512", + "ssh", + "tls", + "x.509", + "x509" + ], + "scripts": { + "prepublish": "npm run build", + "build": "webpack", + "test-build": "webpack --config webpack-tests.config.js", + "test": "npm run test-node", + "test-node": "cross-env NODE_ENV=test mocha -t 30000 -R ${REPORTER:-spec} tests/unit/index.js", + "test-karma": "karma start", + "test-karma-sauce": "karma start karma-sauce.conf", + "test-server": "node tests/server.js", + "test-server-ws": "node tests/websockets/server-ws.js", + "test-server-webid": "node tests/websockets/server-webid.js", + "coverage": "rm -rf coverage && nyc --reporter=lcov --reporter=text-summary npm test", + "coverage-ci": "rm -rf coverage && nyc --reporter=lcovonly npm test", + "coverage-report": "nyc report", + "lint": "eslint *.js lib/*.js tests/*.js tests/**/*.js examples/*.js flash/*.js" + }, + "nyc": { + "exclude": [ + "tests" + ] + }, + "jspm": { + "format": "amd" + }, + "browser": { + "buffer": false, + "crypto": false, + "process": false + } +} -- cgit v1.2.3