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LICENSE 0000664 00000002054 15103436136 0005556 0 ustar 00 Copyright (c) 2013 Brian J. Brennan 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. README.md 0000664 00000012373 15103436136 0006035 0 ustar 00 # node-jwa [](https://travis-ci.org/brianloveswords/node-jwa) A [JSON Web Algorithms](http://tools.ietf.org/id/draft-ietf-jose-json-web-algorithms-08.html) implementation focusing (exclusively, at this point) on the algorithms necessary for [JSON Web Signatures](http://self-issued.info/docs/draft-ietf-jose-json-web-signature.html). This library supports all of the required, recommended and optional cryptographic algorithms for JWS: alg Parameter Value | Digital Signature or MAC Algorithm ----------------|---------------------------- HS256 | HMAC using SHA-256 hash algorithm HS384 | HMAC using SHA-384 hash algorithm HS512 | HMAC using SHA-512 hash algorithm RS256 | RSASSA using SHA-256 hash algorithm RS384 | RSASSA using SHA-384 hash algorithm RS512 | RSASSA using SHA-512 hash algorithm PS256 | RSASSA-PSS using SHA-256 hash algorithm PS384 | RSASSA-PSS using SHA-384 hash algorithm PS512 | RSASSA-PSS using SHA-512 hash algorithm ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm none | No digital signature or MAC value included Please note that PS* only works on Node 6.12+ (excluding 7.x). # Requirements In order to run the tests, a recent version of OpenSSL is required. **The version that comes with OS X (OpenSSL 0.9.8r 8 Feb 2011) is not recent enough**, as it does not fully support ECDSA keys. You'll need to use a version > 1.0.0; I tested with OpenSSL 1.0.1c 10 May 2012. # Testing To run the tests, do ```bash $ npm test ``` This will generate a bunch of keypairs to use in testing. If you want to generate new keypairs, do `make clean` before running `npm test` again. ## Methodology I spawn `openssl dgst -sign` to test OpenSSL sign → JS verify and `openssl dgst -verify` to test JS sign → OpenSSL verify for each of the RSA and ECDSA algorithms. # Usage ## jwa(algorithm) Creates a new `jwa` object with `sign` and `verify` methods for the algorithm. Valid values for algorithm can be found in the table above (`'HS256'`, `'HS384'`, etc) and are case-insensitive. Passing an invalid algorithm value will throw a `TypeError`. ## jwa#sign(input, secretOrPrivateKey) Sign some input with either a secret for HMAC algorithms, or a private key for RSA and ECDSA algorithms. If input is not already a string or buffer, `JSON.stringify` will be called on it to attempt to coerce it. For the HMAC algorithm, `secretOrPrivateKey` should be a string or a buffer. For ECDSA and RSA, the value should be a string representing a PEM encoded **private** key. Output [base64url](http://en.wikipedia.org/wiki/Base64#URL_applications) formatted. This is for convenience as JWS expects the signature in this format. If your application needs the output in a different format, [please open an issue](https://github.com/brianloveswords/node-jwa/issues). In the meantime, you can use [brianloveswords/base64url](https://github.com/brianloveswords/base64url) to decode the signature. As of nodejs *v0.11.8*, SPKAC support was introduce. If your nodeJs version satisfies, then you can pass an object `{ key: '..', passphrase: '...' }` ## jwa#verify(input, signature, secretOrPublicKey) Verify a signature. Returns `true` or `false`. `signature` should be a base64url encoded string. For the HMAC algorithm, `secretOrPublicKey` should be a string or a buffer. For ECDSA and RSA, the value should be a string represented a PEM encoded **public** key. # Example HMAC ```js const jwa = require('jwa'); const hmac = jwa('HS256'); const input = 'super important stuff'; const secret = 'shhhhhh'; const signature = hmac.sign(input, secret); hmac.verify(input, signature, secret) // === true hmac.verify(input, signature, 'trickery!') // === false ``` With keys ```js const fs = require('fs'); const jwa = require('jwa'); const privateKey = fs.readFileSync(__dirname + '/ecdsa-p521-private.pem'); const publicKey = fs.readFileSync(__dirname + '/ecdsa-p521-public.pem'); const ecdsa = jwa('ES512'); const input = 'very important stuff'; const signature = ecdsa.sign(input, privateKey); ecdsa.verify(input, signature, publicKey) // === true ``` ## License MIT ``` Copyright (c) 2013 Brian J. Brennan 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. ``` index.js 0000664 00000014545 15103436136 0006226 0 ustar 00 var bufferEqual = require('buffer-equal-constant-time'); var Buffer = require('safe-buffer').Buffer; var crypto = require('crypto'); var formatEcdsa = require('ecdsa-sig-formatter'); var util = require('util'); var MSG_INVALID_ALGORITHM = '"%s" is not a valid algorithm.\n Supported algorithms are:\n "HS256", "HS384", "HS512", "RS256", "RS384", "RS512", "PS256", "PS384", "PS512", "ES256", "ES384", "ES512" and "none".' var MSG_INVALID_SECRET = 'secret must be a string or buffer'; var MSG_INVALID_VERIFIER_KEY = 'key must be a string or a buffer'; var MSG_INVALID_SIGNER_KEY = 'key must be a string, a buffer or an object'; var supportsKeyObjects = typeof crypto.createPublicKey === 'function'; if (supportsKeyObjects) { MSG_INVALID_VERIFIER_KEY += ' or a KeyObject'; MSG_INVALID_SECRET += 'or a KeyObject'; } function checkIsPublicKey(key) { if (Buffer.isBuffer(key)) { return; } if (typeof key === 'string') { return; } if (!supportsKeyObjects) { throw typeError(MSG_INVALID_VERIFIER_KEY); } if (typeof key !== 'object') { throw typeError(MSG_INVALID_VERIFIER_KEY); } if (typeof key.type !== 'string') { throw typeError(MSG_INVALID_VERIFIER_KEY); } if (typeof key.asymmetricKeyType !== 'string') { throw typeError(MSG_INVALID_VERIFIER_KEY); } if (typeof key.export !== 'function') { throw typeError(MSG_INVALID_VERIFIER_KEY); } }; function checkIsPrivateKey(key) { if (Buffer.isBuffer(key)) { return; } if (typeof key === 'string') { return; } if (typeof key === 'object') { return; } throw typeError(MSG_INVALID_SIGNER_KEY); }; function checkIsSecretKey(key) { if (Buffer.isBuffer(key)) { return; } if (typeof key === 'string') { return key; } if (!supportsKeyObjects) { throw typeError(MSG_INVALID_SECRET); } if (typeof key !== 'object') { throw typeError(MSG_INVALID_SECRET); } if (key.type !== 'secret') { throw typeError(MSG_INVALID_SECRET); } if (typeof key.export !== 'function') { throw typeError(MSG_INVALID_SECRET); } } function fromBase64(base64) { return base64 .replace(/=/g, '') .replace(/\+/g, '-') .replace(/\//g, '_'); } function toBase64(base64url) { base64url = base64url.toString(); var padding = 4 - base64url.length % 4; if (padding !== 4) { for (var i = 0; i < padding; ++i) { base64url += '='; } } return base64url .replace(/\-/g, '+') .replace(/_/g, '/'); } function typeError(template) { var args = [].slice.call(arguments, 1); var errMsg = util.format.bind(util, template).apply(null, args); return new TypeError(errMsg); } function bufferOrString(obj) { return Buffer.isBuffer(obj) || typeof obj === 'string'; } function normalizeInput(thing) { if (!bufferOrString(thing)) thing = JSON.stringify(thing); return thing; } function createHmacSigner(bits) { return function sign(thing, secret) { checkIsSecretKey(secret); thing = normalizeInput(thing); var hmac = crypto.createHmac('sha' + bits, secret); var sig = (hmac.update(thing), hmac.digest('base64')) return fromBase64(sig); } } function createHmacVerifier(bits) { return function verify(thing, signature, secret) { var computedSig = createHmacSigner(bits)(thing, secret); return bufferEqual(Buffer.from(signature), Buffer.from(computedSig)); } } function createKeySigner(bits) { return function sign(thing, privateKey) { checkIsPrivateKey(privateKey); thing = normalizeInput(thing); // Even though we are specifying "RSA" here, this works with ECDSA // keys as well. var signer = crypto.createSign('RSA-SHA' + bits); var sig = (signer.update(thing), signer.sign(privateKey, 'base64')); return fromBase64(sig); } } function createKeyVerifier(bits) { return function verify(thing, signature, publicKey) { checkIsPublicKey(publicKey); thing = normalizeInput(thing); signature = toBase64(signature); var verifier = crypto.createVerify('RSA-SHA' + bits); verifier.update(thing); return verifier.verify(publicKey, signature, 'base64'); } } function createPSSKeySigner(bits) { return function sign(thing, privateKey) { checkIsPrivateKey(privateKey); thing = normalizeInput(thing); var signer = crypto.createSign('RSA-SHA' + bits); var sig = (signer.update(thing), signer.sign({ key: privateKey, padding: crypto.constants.RSA_PKCS1_PSS_PADDING, saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST }, 'base64')); return fromBase64(sig); } } function createPSSKeyVerifier(bits) { return function verify(thing, signature, publicKey) { checkIsPublicKey(publicKey); thing = normalizeInput(thing); signature = toBase64(signature); var verifier = crypto.createVerify('RSA-SHA' + bits); verifier.update(thing); return verifier.verify({ key: publicKey, padding: crypto.constants.RSA_PKCS1_PSS_PADDING, saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST }, signature, 'base64'); } } function createECDSASigner(bits) { var inner = createKeySigner(bits); return function sign() { var signature = inner.apply(null, arguments); signature = formatEcdsa.derToJose(signature, 'ES' + bits); return signature; }; } function createECDSAVerifer(bits) { var inner = createKeyVerifier(bits); return function verify(thing, signature, publicKey) { signature = formatEcdsa.joseToDer(signature, 'ES' + bits).toString('base64'); var result = inner(thing, signature, publicKey); return result; }; } function createNoneSigner() { return function sign() { return ''; } } function createNoneVerifier() { return function verify(thing, signature) { return signature === ''; } } module.exports = function jwa(algorithm) { var signerFactories = { hs: createHmacSigner, rs: createKeySigner, ps: createPSSKeySigner, es: createECDSASigner, none: createNoneSigner, } var verifierFactories = { hs: createHmacVerifier, rs: createKeyVerifier, ps: createPSSKeyVerifier, es: createECDSAVerifer, none: createNoneVerifier, } var match = algorithm.match(/^(RS|PS|ES|HS)(256|384|512)$|^(none)$/i); if (!match) throw typeError(MSG_INVALID_ALGORITHM, algorithm); var algo = (match[1] || match[3]).toLowerCase(); var bits = match[2]; return { sign: signerFactories[algo](bits), verify: verifierFactories[algo](bits), } }; package.json 0000664 00000003151 15103436136 0007036 0 ustar 00 { "_args": [ [ "jwa@1.4.1", "/home/freeclou/app.optimyar.com/backend" ] ], "_from": "jwa@1.4.1", "_id": "jwa@1.4.1", "_inBundle": false, "_integrity": "sha512-qiLX/xhEEFKUAJ6FiBMbes3w9ATzyk5W7Hvzpa/SLYdxNtng+gcurvrI7TbACjIXlsJyr05/S1oUhZrc63evQA==", "_location": "/jwa", "_phantomChildren": {}, "_requested": { "type": "version", "registry": true, "raw": "jwa@1.4.1", "name": "jwa", "escapedName": "jwa", "rawSpec": "1.4.1", "saveSpec": null, "fetchSpec": "1.4.1" }, "_requiredBy": [ "/jws" ], "_resolved": "https://registry.npmjs.org/jwa/-/jwa-1.4.1.tgz", "_spec": "1.4.1", "_where": "/home/freeclou/app.optimyar.com/backend", "author": { "name": "Brian J. Brennan", "email": "brianloveswords@gmail.com" }, "bugs": { "url": "https://github.com/brianloveswords/node-jwa/issues" }, "dependencies": { "buffer-equal-constant-time": "1.0.1", "ecdsa-sig-formatter": "1.0.11", "safe-buffer": "^5.0.1" }, "description": "JWA implementation (supports all JWS algorithms)", "devDependencies": { "base64url": "^2.0.0", "jwk-to-pem": "^2.0.1", "semver": "4.3.6", "tap": "6.2.0" }, "directories": { "test": "test" }, "homepage": "https://github.com/brianloveswords/node-jwa#readme", "keywords": [ "jwa", "jws", "jwt", "rsa", "ecdsa", "hmac" ], "license": "MIT", "main": "index.js", "name": "jwa", "repository": { "type": "git", "url": "git://github.com/brianloveswords/node-jwa.git" }, "scripts": { "test": "make test" }, "version": "1.4.1" }
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