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Commit Description:
change to encrypted cookies
Commit Description:
change to encrypted cookies
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node_modules/crypto-js/rc4.js
| 138 lines
| 3.5 KiB
| application/javascript
| JavascriptLexer
|
| r789 | ;(function (root, factory, undef) { | ||
| if (typeof exports === "object") { | |||
| // CommonJS | |||
| module.exports = exports = factory(require("./core"), require("./enc-base64"), require("./md5"), require("./evpkdf"), require("./cipher-core")); | |||
| } | |||
| else if (typeof define === "function" && define.amd) { | |||
| // AMD | |||
| define(["./core", "./enc-base64", "./md5", "./evpkdf", "./cipher-core"], factory); | |||
| } | |||
| else { | |||
| // Global (browser) | |||
| factory(root.CryptoJS); | |||
| } | |||
| }(this, function (CryptoJS) { | |||
| (function () { | |||
| // Shortcuts | |||
| var C = CryptoJS; | |||
| var C_lib = C.lib; | |||
| var StreamCipher = C_lib.StreamCipher; | |||
| var C_algo = C.algo; | |||
| /** | |||
| * RC4 stream cipher algorithm. | |||
| */ | |||
| var RC4 = C_algo.RC4 = StreamCipher.extend({ | |||
| _doReset: function () { | |||
| // Shortcuts | |||
| var key = this._key; | |||
| var keyWords = key.words; | |||
| var keySigBytes = key.sigBytes; | |||
| // Init sbox | |||
| var S = this._S = []; | |||
| for (var i = 0; i < 256; i++) { | |||
| S[i] = i; | |||
| } | |||
| // Key setup | |||
| for (var i = 0, j = 0; i < 256; i++) { | |||
| var keyByteIndex = i % keySigBytes; | |||
| var keyByte = (keyWords[keyByteIndex >>> 2] >>> (24 - (keyByteIndex % 4) * 8)) & 0xff; | |||
| j = (j + S[i] + keyByte) % 256; | |||
| // Swap | |||
| var t = S[i]; | |||
| S[i] = S[j]; | |||
| S[j] = t; | |||
| } | |||
| // Counters | |||
| this._i = this._j = 0; | |||
| }, | |||
| _doProcessBlock: function (M, offset) { | |||
| M[offset] ^= generateKeystreamWord.call(this); | |||
| }, | |||
| keySize: 256/32, | |||
| ivSize: 0 | |||
| }); | |||
| function generateKeystreamWord() { | |||
| // Shortcuts | |||
| var S = this._S; | |||
| var i = this._i; | |||
| var j = this._j; | |||
| // Generate keystream word | |||
| var keystreamWord = 0; | |||
| for (var n = 0; n < 4; n++) { | |||
| i = (i + 1) % 256; | |||
| j = (j + S[i]) % 256; | |||
| // Swap | |||
| var t = S[i]; | |||
| S[i] = S[j]; | |||
| S[j] = t; | |||
| keystreamWord |= S[(S[i] + S[j]) % 256] << (24 - n * 8); | |||
| } | |||
| // Update counters | |||
| this._i = i; | |||
| this._j = j; | |||
| return keystreamWord; | |||
| } | |||
| /** | |||
| * Shortcut functions to the cipher's object interface. | |||
| * | |||
| * @example | |||
| * | |||
| * var ciphertext = CryptoJS.RC4.encrypt(message, key, cfg); | |||
| * var plaintext = CryptoJS.RC4.decrypt(ciphertext, key, cfg); | |||
| */ | |||
| C.RC4 = StreamCipher._createHelper(RC4); | |||
| /** | |||
| * Modified RC4 stream cipher algorithm. | |||
| */ | |||
| var RC4Drop = C_algo.RC4Drop = RC4.extend({ | |||
| /** | |||
| * Configuration options. | |||
| * | |||
| * @property {number} drop The number of keystream words to drop. Default 192 | |||
| */ | |||
| cfg: RC4.cfg.extend({ | |||
| drop: 192 | |||
| }), | |||
| _doReset: function () { | |||
| RC4._doReset.call(this); | |||
| // Drop | |||
| for (var i = this.cfg.drop; i > 0; i--) { | |||
| generateKeystreamWord.call(this); | |||
| } | |||
| } | |||
| }); | |||
| /** | |||
| * Shortcut functions to the cipher's object interface. | |||
| * | |||
| * @example | |||
| * | |||
| * var ciphertext = CryptoJS.RC4Drop.encrypt(message, key, cfg); | |||
| * var plaintext = CryptoJS.RC4Drop.decrypt(ciphertext, key, cfg); | |||
| */ | |||
| C.RC4Drop = StreamCipher._createHelper(RC4Drop); | |||
| }()); | |||
| return CryptoJS.RC4; | |||
| })); |