diff --git a/dist/aes-decrypter.js b/dist/aes-decrypter.js new file mode 100644 index 0000000..d3efcae --- /dev/null +++ b/dist/aes-decrypter.js @@ -0,0 +1,796 @@ +(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.aesDecrypter = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 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. + * + * The views and conclusions contained in the software and documentation + * are those of the authors and should not be interpreted as representing + * official policies, either expressed or implied, of the authors. + */ + +/** + * Expand the S-box tables. + * + * @private + */ +'use strict'; + +Object.defineProperty(exports, '__esModule', { + value: true +}); + +var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })(); + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } } + +var precompute = function precompute() { + var tables = [[[], [], [], [], []], [[], [], [], [], []]]; + var encTable = tables[0]; + var decTable = tables[1]; + var sbox = encTable[4]; + var sboxInv = decTable[4]; + var i = undefined; + var x = undefined; + var xInv = undefined; + var d = []; + var th = []; + var x2 = undefined; + var x4 = undefined; + var x8 = undefined; + var s = undefined; + var tEnc = undefined; + var tDec = undefined; + + // Compute double and third tables + for (i = 0; i < 256; i++) { + th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i; + } + + for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) { + // Compute sbox + s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4; + s = s >> 8 ^ s & 255 ^ 99; + sbox[x] = s; + sboxInv[s] = x; + + // Compute MixColumns + x8 = d[x4 = d[x2 = d[x]]]; + tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100; + tEnc = d[s] * 0x101 ^ s * 0x1010100; + + for (i = 0; i < 4; i++) { + encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8; + decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8; + } + } + + // Compactify. Considerable speedup on Firefox. + for (i = 0; i < 5; i++) { + encTable[i] = encTable[i].slice(0); + decTable[i] = decTable[i].slice(0); + } + return tables; +}; +var aesTables = null; + +/** + * Schedule out an AES key for both encryption and decryption. This + * is a low-level class. Use a cipher mode to do bulk encryption. + * + * @class AES + * @param key {Array} The key as an array of 4, 6 or 8 words. + */ + +var AES = (function () { + function AES(key) { + _classCallCheck(this, AES); + + /** + * The expanded S-box and inverse S-box tables. These will be computed + * on the client so that we don't have to send them down the wire. + * + * There are two tables, _tables[0] is for encryption and + * _tables[1] is for decryption. + * + * The first 4 sub-tables are the expanded S-box with MixColumns. The + * last (_tables[01][4]) is the S-box itself. + * + * @private + */ + // if we have yet to precompute the S-box tables + // do so now + if (!aesTables) { + aesTables = precompute(); + } + // then make a copy of that object for use + this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]]; + var i = undefined; + var j = undefined; + var tmp = undefined; + var encKey = undefined; + var decKey = undefined; + var sbox = this._tables[0][4]; + var decTable = this._tables[1]; + var keyLen = key.length; + var rcon = 1; + + if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) { + throw new Error('Invalid aes key size'); + } + + encKey = key.slice(0); + decKey = []; + this._key = [encKey, decKey]; + + // schedule encryption keys + for (i = keyLen; i < 4 * keyLen + 28; i++) { + tmp = encKey[i - 1]; + + // apply sbox + if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) { + tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; + + // shift rows and add rcon + if (i % keyLen === 0) { + tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24; + rcon = rcon << 1 ^ (rcon >> 7) * 283; + } + } + + encKey[i] = encKey[i - keyLen] ^ tmp; + } + + // schedule decryption keys + for (j = 0; i; j++, i--) { + tmp = encKey[j & 3 ? i : i - 4]; + if (i <= 4 || j < 4) { + decKey[j] = tmp; + } else { + decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]]; + } + } + } + + /** + * Decrypt 16 bytes, specified as four 32-bit words. + * + * @param {Number} encrypted0 the first word to decrypt + * @param {Number} encrypted1 the second word to decrypt + * @param {Number} encrypted2 the third word to decrypt + * @param {Number} encrypted3 the fourth word to decrypt + * @param {Int32Array} out the array to write the decrypted words + * into + * @param {Number} offset the offset into the output array to start + * writing results + * @return {Array} The plaintext. + */ + + _createClass(AES, [{ + key: 'decrypt', + value: function decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) { + var key = this._key[1]; + // state variables a,b,c,d are loaded with pre-whitened data + var a = encrypted0 ^ key[0]; + var b = encrypted3 ^ key[1]; + var c = encrypted2 ^ key[2]; + var d = encrypted1 ^ key[3]; + var a2 = undefined; + var b2 = undefined; + var c2 = undefined; + + // key.length === 2 ? + var nInnerRounds = key.length / 4 - 2; + var i = undefined; + var kIndex = 4; + var table = this._tables[1]; + + // load up the tables + var table0 = table[0]; + var table1 = table[1]; + var table2 = table[2]; + var table3 = table[3]; + var sbox = table[4]; + + // Inner rounds. Cribbed from OpenSSL. + for (i = 0; i < nInnerRounds; i++) { + a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex]; + b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1]; + c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2]; + d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3]; + kIndex += 4; + a = a2;b = b2;c = c2; + } + + // Last round. + for (i = 0; i < 4; i++) { + out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++]; + a2 = a;a = b;b = c;c = d;d = a2; + } + } + }]); + + return AES; +})(); + +exports['default'] = AES; +module.exports = exports['default']; +},{}],2:[function(require,module,exports){ +/** + * @file async-stream.js + */ +'use strict'; + +Object.defineProperty(exports, '__esModule', { + value: true +}); + +var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })(); + +var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; desc = parent = undefined; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } }; + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } } + +function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } + +var _stream = require('./stream'); + +var _stream2 = _interopRequireDefault(_stream); + +/** + * A wrapper around the Stream class to use setTiemout + * and run stream "jobs" Asynchronously + * + * @class AsyncStream + * @extends Stream + */ + +var AsyncStream = (function (_Stream) { + _inherits(AsyncStream, _Stream); + + function AsyncStream() { + _classCallCheck(this, AsyncStream); + + _get(Object.getPrototypeOf(AsyncStream.prototype), 'constructor', this).call(this, _stream2['default']); + this.jobs = []; + this.delay = 1; + this.timeout_ = null; + } + + /** + * process an async job + * + * @private + */ + + _createClass(AsyncStream, [{ + key: 'processJob_', + value: function processJob_() { + this.jobs.shift()(); + if (this.jobs.length) { + this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay); + } else { + this.timeout_ = null; + } + } + + /** + * push a job into the stream + * + * @param {Function} job the job to push into the stream + */ + }, { + key: 'push', + value: function push(job) { + this.jobs.push(job); + if (!this.timeout_) { + this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay); + } + } + }]); + + return AsyncStream; +})(_stream2['default']); + +exports['default'] = AsyncStream; +module.exports = exports['default']; +},{"./stream":4}],3:[function(require,module,exports){ +/** + * @file decrypter.js + * + * An asynchronous implementation of AES-128 CBC decryption with + * PKCS#7 padding. + */ + +'use strict'; + +Object.defineProperty(exports, '__esModule', { + value: true +}); + +var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })(); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } } + +var _aes = require('./aes'); + +var _aes2 = _interopRequireDefault(_aes); + +var _asyncStream = require('./async-stream'); + +var _asyncStream2 = _interopRequireDefault(_asyncStream); + +var _pkcs7 = require('pkcs7'); + +/** + * Convert network-order (big-endian) bytes into their little-endian + * representation. + */ +var ntoh = function ntoh(word) { + return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24; +}; + +/** + * Decrypt bytes using AES-128 with CBC and PKCS#7 padding. + * + * @param {Uint8Array} encrypted the encrypted bytes + * @param {Uint32Array} key the bytes of the decryption key + * @param {Uint32Array} initVector the initialization vector (IV) to + * use for the first round of CBC. + * @return {Uint8Array} the decrypted bytes + * + * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard + * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29 + * @see https://tools.ietf.org/html/rfc2315 + */ +var decrypt = function decrypt(encrypted, key, initVector) { + // word-level access to the encrypted bytes + var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2); + + var decipher = new _aes2['default'](Array.prototype.slice.call(key)); + + // byte and word-level access for the decrypted output + var decrypted = new Uint8Array(encrypted.byteLength); + var decrypted32 = new Int32Array(decrypted.buffer); + + // temporary variables for working with the IV, encrypted, and + // decrypted data + var init0 = undefined; + var init1 = undefined; + var init2 = undefined; + var init3 = undefined; + var encrypted0 = undefined; + var encrypted1 = undefined; + var encrypted2 = undefined; + var encrypted3 = undefined; + + // iteration variable + var wordIx = undefined; + + // pull out the words of the IV to ensure we don't modify the + // passed-in reference and easier access + init0 = initVector[0]; + init1 = initVector[1]; + init2 = initVector[2]; + init3 = initVector[3]; + + // decrypt four word sequences, applying cipher-block chaining (CBC) + // to each decrypted block + for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) { + // convert big-endian (network order) words into little-endian + // (javascript order) + encrypted0 = ntoh(encrypted32[wordIx]); + encrypted1 = ntoh(encrypted32[wordIx + 1]); + encrypted2 = ntoh(encrypted32[wordIx + 2]); + encrypted3 = ntoh(encrypted32[wordIx + 3]); + + // decrypt the block + decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); + + // XOR with the IV, and restore network byte-order to obtain the + // plaintext + decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0); + decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1); + decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2); + decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); + + // setup the IV for the next round + init0 = encrypted0; + init1 = encrypted1; + init2 = encrypted2; + init3 = encrypted3; + } + + return decrypted; +}; + +exports.decrypt = decrypt; +/** + * The `Decrypter` class that manages decryption of AES + * data through `AsyncStream` objects and the `decrypt` + * function + * + * @param {Uint8Array} encrypted the encrypted bytes + * @param {Uint32Array} key the bytes of the decryption key + * @param {Uint32Array} initVector the initialization vector (IV) to + * @param {Function} done the function to run when done + * @class Decrypter + */ + +var Decrypter = (function () { + function Decrypter(encrypted, key, initVector, done) { + _classCallCheck(this, Decrypter); + + var step = Decrypter.STEP; + var encrypted32 = new Int32Array(encrypted.buffer); + var decrypted = new Uint8Array(encrypted.byteLength); + var i = 0; + + this.asyncStream_ = new _asyncStream2['default'](); + + // split up the encryption job and do the individual chunks asynchronously + this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted)); + for (i = step; i < encrypted32.length; i += step) { + initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]); + this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted)); + } + // invoke the done() callback when everything is finished + this.asyncStream_.push(function () { + // remove pkcs#7 padding from the decrypted bytes + done(null, (0, _pkcs7.unpad)(decrypted)); + }); + } + + /** + * a getter for step the maximum number of bytes to process at one time + * + * @return {Number} the value of step 32000 + */ + + _createClass(Decrypter, [{ + key: 'decryptChunk_', + + /** + * @private + */ + value: function decryptChunk_(encrypted, key, initVector, decrypted) { + return function () { + var bytes = decrypt(encrypted, key, initVector); + + decrypted.set(bytes, encrypted.byteOffset); + }; + } + }], [{ + key: 'STEP', + get: function get() { + // 4 * 8000; + return 32000; + } + }]); + + return Decrypter; +})(); + +exports.Decrypter = Decrypter; +exports['default'] = { + Decrypter: Decrypter, + decrypt: decrypt +}; +},{"./aes":1,"./async-stream":2,"pkcs7":6}],4:[function(require,module,exports){ +/** + * @file stream.js + */ +/** + * A lightweight readable stream implemention that handles event dispatching. + * + * @class Stream + */ +'use strict'; + +Object.defineProperty(exports, '__esModule', { + value: true +}); + +var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })(); + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } } + +var Stream = (function () { + function Stream() { + _classCallCheck(this, Stream); + + this.listeners = {}; + } + + /** + * Add a listener for a specified event type. + * + * @param {String} type the event name + * @param {Function} listener the callback to be invoked when an event of + * the specified type occurs + */ + + _createClass(Stream, [{ + key: 'on', + value: function on(type, listener) { + if (!this.listeners[type]) { + this.listeners[type] = []; + } + this.listeners[type].push(listener); + } + + /** + * Remove a listener for a specified event type. + * + * @param {String} type the event name + * @param {Function} listener a function previously registered for this + * type of event through `on` + * @return {Boolean} if we could turn it off or not + */ + }, { + key: 'off', + value: function off(type, listener) { + var index = undefined; + + if (!this.listeners[type]) { + return false; + } + index = this.listeners[type].indexOf(listener); + this.listeners[type].splice(index, 1); + return index > -1; + } + + /** + * Trigger an event of the specified type on this stream. Any additional + * arguments to this function are passed as parameters to event listeners. + * + * @param {String} type the event name + */ + }, { + key: 'trigger', + value: function trigger(type) { + var callbacks = undefined; + var i = undefined; + var length = undefined; + var args = undefined; + + callbacks = this.listeners[type]; + if (!callbacks) { + return; + } + // Slicing the arguments on every invocation of this method + // can add a significant amount of overhead. Avoid the + // intermediate object creation for the common case of a + // single callback argument + if (arguments.length === 2) { + length = callbacks.length; + for (i = 0; i < length; ++i) { + callbacks[i].call(this, arguments[1]); + } + } else { + args = Array.prototype.slice.call(arguments, 1); + length = callbacks.length; + for (i = 0; i < length; ++i) { + callbacks[i].apply(this, args); + } + } + } + + /** + * Destroys the stream and cleans up. + */ + }, { + key: 'dispose', + value: function dispose() { + this.listeners = {}; + } + + /** + * Forwards all `data` events on this stream to the destination stream. The + * destination stream should provide a method `push` to receive the data + * events as they arrive. + * + * @param {Stream} destination the stream that will receive all `data` events + * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options + */ + }, { + key: 'pipe', + value: function pipe(destination) { + this.on('data', function (data) { + destination.push(data); + }); + } + }]); + + return Stream; +})(); + +exports['default'] = Stream; +module.exports = exports['default']; +},{}],5:[function(require,module,exports){ +/* + * pkcs7.pad + * https://github.com/brightcove/pkcs7 + * + * Copyright (c) 2014 Brightcove + * Licensed under the apache2 license. + */ + +'use strict'; + +var PADDING; + +/** + * Returns a new Uint8Array that is padded with PKCS#7 padding. + * @param plaintext {Uint8Array} the input bytes before encryption + * @return {Uint8Array} the padded bytes + * @see http://tools.ietf.org/html/rfc5652 + */ +module.exports = function pad(plaintext) { + var padding = PADDING[(plaintext.byteLength % 16) || 0], + result = new Uint8Array(plaintext.byteLength + padding.length); + result.set(plaintext); + result.set(padding, plaintext.byteLength); + return result; +}; + +// pre-define the padding values +PADDING = [ + [16, 16, 16, 16, + 16, 16, 16, 16, + 16, 16, 16, 16, + 16, 16, 16, 16], + + [15, 15, 15, 15, + 15, 15, 15, 15, + 15, 15, 15, 15, + 15, 15, 15], + + [14, 14, 14, 14, + 14, 14, 14, 14, + 14, 14, 14, 14, + 14, 14], + + [13, 13, 13, 13, + 13, 13, 13, 13, + 13, 13, 13, 13, + 13], + + [12, 12, 12, 12, + 12, 12, 12, 12, + 12, 12, 12, 12], + + [11, 11, 11, 11, + 11, 11, 11, 11, + 11, 11, 11], + + [10, 10, 10, 10, + 10, 10, 10, 10, + 10, 10], + + [9, 9, 9, 9, + 9, 9, 9, 9, + 9], + + [8, 8, 8, 8, + 8, 8, 8, 8], + + [7, 7, 7, 7, + 7, 7, 7], + + [6, 6, 6, 6, + 6, 6], + + [5, 5, 5, 5, + 5], + + [4, 4, 4, 4], + + [3, 3, 3], + + [2, 2], + + [1] +]; + +},{}],6:[function(require,module,exports){ +/* + * pkcs7 + * https://github.com/brightcove/pkcs7 + * + * Copyright (c) 2014 Brightcove + * Licensed under the apache2 license. + */ + +'use strict'; + +exports.pad = require('./pad.js'); +exports.unpad = require('./unpad.js'); + +},{"./pad.js":5,"./unpad.js":7}],7:[function(require,module,exports){ +/* + * pkcs7.unpad + * https://github.com/brightcove/pkcs7 + * + * Copyright (c) 2014 Brightcove + * Licensed under the apache2 license. + */ + +'use strict'; + +/** + * Returns the subarray of a Uint8Array without PKCS#7 padding. + * @param padded {Uint8Array} unencrypted bytes that have been padded + * @return {Uint8Array} the unpadded bytes + * @see http://tools.ietf.org/html/rfc5652 + */ +module.exports = function unpad(padded) { + return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]); +}; + +},{}],8:[function(require,module,exports){ +/** + * @file index.js + * + * Index module to easily import the primary components of AES-128 + * decryption. Like this: + * + * ```js + * import {Decrypter, decrypt, AsyncStream} from 'aes-decrypter'; + * ``` + */ +'use strict'; + +Object.defineProperty(exports, '__esModule', { + value: true +}); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + +var _decrypter = require('./decrypter'); + +var _asyncStream = require('./async-stream'); + +var _asyncStream2 = _interopRequireDefault(_asyncStream); + +exports['default'] = { + decrypt: _decrypter.decrypt, + Decrypter: _decrypter.Decrypter, + AsyncStream: _asyncStream2['default'] +}; +module.exports = exports['default']; +},{"./async-stream":2,"./decrypter":3}]},{},[8])(8) +}); \ No newline at end of file diff --git a/dist/aes-decrypter.min.js b/dist/aes-decrypter.min.js new file mode 100644 index 0000000..ad5a33d --- /dev/null +++ b/dist/aes-decrypter.min.js @@ -0,0 +1 @@ +!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.aesDecrypter=e()}}(function(){return function e(t,n,r){function i(u,s){if(!n[u]){if(!t[u]){var a="function"==typeof require&&require;if(!s&&a)return a(u,!0);if(o)return o(u,!0);var f=new Error("Cannot find module '"+u+"'");throw f.code="MODULE_NOT_FOUND",f}var c=n[u]={exports:{}};t[u][0].call(c.exports,function(e){var n=t[u][1][e];return i(n?n:e)},c,c.exports,e,t,n,r)}return n[u].exports}for(var o="function"==typeof require&&require,u=0;uo;o++)f[(a[o]=o<<1^283*(o>>7))^o]=o;for(u=s=0;!r[u];u^=c||1,s=f[s]||1)for(y=s^s<<1^s<<2^s<<3^s<<4,y=y>>8^255&y^99,r[u]=y,i[y]=u,d=a[l=a[c=a[u]]],v=16843009*d^65537*l^257*c^16843008*u,p=257*a[y]^16843008*y,o=0;4>o;o++)t[o][u]=p=p<<24^p>>>8,n[o][y]=v=v<<24^v>>>8;for(o=0;5>o;o++)t[o]=t[o].slice(0),n[o]=n[o].slice(0);return e},u=null,s=function(){function e(t){r(this,e),u||(u=o()),this._tables=[[u[0][0].slice(),u[0][1].slice(),u[0][2].slice(),u[0][3].slice(),u[0][4].slice()],[u[1][0].slice(),u[1][1].slice(),u[1][2].slice(),u[1][3].slice(),u[1][4].slice()]];var n=void 0,i=void 0,s=void 0,a=void 0,f=void 0,c=this._tables[0][4],l=this._tables[1],d=t.length,y=1;if(4!==d&&6!==d&&8!==d)throw new Error("Invalid aes key size");for(a=t.slice(0),f=[],this._key=[a,f],n=d;4*d+28>n;n++)s=a[n-1],(n%d===0||8===d&&n%d===4)&&(s=c[s>>>24]<<24^c[s>>16&255]<<16^c[s>>8&255]<<8^c[255&s],n%d===0&&(s=s<<8^s>>>24^y<<24,y=y<<1^283*(y>>7))),a[n]=a[n-d]^s;for(i=0;n;i++,n--)s=a[3&i?n:n-4],4>=n||4>i?f[i]=s:f[i]=l[0][c[s>>>24]]^l[1][c[s>>16&255]]^l[2][c[s>>8&255]]^l[3][c[255&s]]}return i(e,[{key:"decrypt",value:function(e,t,n,r,i,o){var u=this._key[1],s=e^u[0],a=r^u[1],f=n^u[2],c=t^u[3],l=void 0,d=void 0,y=void 0,p=u.length/4-2,v=void 0,h=4,b=this._tables[1],_=b[0],g=b[1],w=b[2],m=b[3],O=b[4];for(v=0;p>v;v++)l=_[s>>>24]^g[a>>16&255]^w[f>>8&255]^m[255&c]^u[h],d=_[a>>>24]^g[f>>16&255]^w[c>>8&255]^m[255&s]^u[h+1],y=_[f>>>24]^g[c>>16&255]^w[s>>8&255]^m[255&a]^u[h+2],c=_[c>>>24]^g[s>>16&255]^w[a>>8&255]^m[255&f]^u[h+3],h+=4,s=l,a=d,f=y;for(v=0;4>v;v++)i[(3&-v)+o]=O[s>>>24]<<24^O[a>>16&255]<<16^O[f>>8&255]<<8^O[255&c]^u[h++],l=s,s=a,a=f,f=c,c=l}}]),e}();n["default"]=s,t.exports=n["default"]},{}],2:[function(e,t,n){"use strict";function r(e){return e&&e.__esModule?e:{"default":e}}function i(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function o(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}Object.defineProperty(n,"__esModule",{value:!0});var u=function(){function e(e,t){for(var n=0;n>8|e>>>24},d=function(e,t,n){var r=new Int32Array(e.buffer,e.byteOffset,e.byteLength>>2),i=new s["default"](Array.prototype.slice.call(t)),o=new Uint8Array(e.byteLength),u=new Int32Array(o.buffer),a=void 0,f=void 0,c=void 0,d=void 0,y=void 0,p=void 0,v=void 0,h=void 0,b=void 0;for(a=n[0],f=n[1],c=n[2],d=n[3],b=0;b-1):!1}},{key:"trigger",value:function(e){var t=void 0,n=void 0,r=void 0,i=void 0;if(t=this.listeners[e])if(2===arguments.length)for(r=t.length,n=0;r>n;++n)t[n].call(this,arguments[1]);else for(i=Array.prototype.slice.call(arguments,1),r=t.length,n=0;r>n;++n)t[n].apply(this,i)}},{key:"dispose",value:function(){this.listeners={}}},{key:"pipe",value:function(e){this.on("data",function(t){e.push(t)})}}]),e}();n["default"]=o,t.exports=n["default"]},{}],5:[function(e,t,n){"use strict";var r;t.exports=function(e){var t=r[e.byteLength%16||0],n=new Uint8Array(e.byteLength+t.length);return n.set(e),n.set(t,e.byteLength),n},r=[[16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16],[15,15,15,15,15,15,15,15,15,15,15,15,15,15,15],[14,14,14,14,14,14,14,14,14,14,14,14,14,14],[13,13,13,13,13,13,13,13,13,13,13,13,13],[12,12,12,12,12,12,12,12,12,12,12,12],[11,11,11,11,11,11,11,11,11,11,11],[10,10,10,10,10,10,10,10,10,10],[9,9,9,9,9,9,9,9,9],[8,8,8,8,8,8,8,8],[7,7,7,7,7,7,7],[6,6,6,6,6,6],[5,5,5,5,5],[4,4,4,4],[3,3,3],[2,2],[1]]},{}],6:[function(e,t,n){"use strict";n.pad=e("./pad.js"),n.unpad=e("./unpad.js")},{"./pad.js":5,"./unpad.js":7}],7:[function(e,t,n){"use strict";t.exports=function(e){return e.subarray(0,e.byteLength-e[e.byteLength-1])}},{}],8:[function(e,t,n){"use strict";function r(e){return e&&e.__esModule?e:{"default":e}}Object.defineProperty(n,"__esModule",{value:!0});var i=e("./decrypter"),o=e("./async-stream"),u=r(o);n["default"]={decrypt:i.decrypt,Decrypter:i.Decrypter,AsyncStream:u["default"]},t.exports=n["default"]},{"./async-stream":2,"./decrypter":3}]},{},[8])(8)}); \ No newline at end of file