| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136 | /*CryptoJS v3.1.2code.google.com/p/crypto-js(c) 2009-2013 by Jeff Mott. All rights reserved.code.google.com/p/crypto-js/wiki/License*/(function () {    // Shortcuts    var C = CryptoJS;    var C_lib = C.lib;    var WordArray = C_lib.WordArray;    var Hasher = C_lib.Hasher;    var C_algo = C.algo;    // Reusable object    var W = [];    /**     * SHA-1 hash algorithm.     */    var SHA1 = C_algo.SHA1 = Hasher.extend({        _doReset: function () {            this._hash = new WordArray.init([                0x67452301, 0xefcdab89,                0x98badcfe, 0x10325476,                0xc3d2e1f0            ]);        },        _doProcessBlock: function (M, offset) {            // Shortcut            var H = this._hash.words;            // Working variables            var a = H[0];            var b = H[1];            var c = H[2];            var d = H[3];            var e = H[4];            // Computation            for (var i = 0; i < 80; i++) {                if (i < 16) {                    W[i] = M[offset + i] | 0;                } else {                    var n = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16];                    W[i] = (n << 1) | (n >>> 31);                }                var t = ((a << 5) | (a >>> 27)) + e + W[i];                if (i < 20) {                    t += ((b & c) | (~b & d)) + 0x5a827999;                } else if (i < 40) {                    t += (b ^ c ^ d) + 0x6ed9eba1;                } else if (i < 60) {                    t += ((b & c) | (b & d) | (c & d)) - 0x70e44324;                } else /* if (i < 80) */ {                    t += (b ^ c ^ d) - 0x359d3e2a;                }                e = d;                d = c;                c = (b << 30) | (b >>> 2);                b = a;                a = t;            }            // Intermediate hash value            H[0] = (H[0] + a) | 0;            H[1] = (H[1] + b) | 0;            H[2] = (H[2] + c) | 0;            H[3] = (H[3] + d) | 0;            H[4] = (H[4] + e) | 0;        },        _doFinalize: function () {            // Shortcuts            var data = this._data;            var dataWords = data.words;            var nBitsTotal = this._nDataBytes * 8;            var nBitsLeft = data.sigBytes * 8;            // Add padding            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = Math.floor(nBitsTotal / 0x100000000);            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = nBitsTotal;            data.sigBytes = dataWords.length * 4;            // Hash final blocks            this._process();            // Return final computed hash            return this._hash;        },        clone: function () {            var clone = Hasher.clone.call(this);            clone._hash = this._hash.clone();            return clone;        }    });    /**     * Shortcut function to the hasher's object interface.     *     * @param {WordArray|string} message The message to hash.     *     * @return {WordArray} The hash.     *     * @static     *     * @example     *     *     var hash = CryptoJS.SHA1('message');     *     var hash = CryptoJS.SHA1(wordArray);     */    C.SHA1 = Hasher._createHelper(SHA1);    /**     * Shortcut function to the HMAC's object interface.     *     * @param {WordArray|string} message The message to hash.     * @param {WordArray|string} key The secret key.     *     * @return {WordArray} The HMAC.     *     * @static     *     * @example     *     *     var hmac = CryptoJS.HmacSHA1(message, key);     */    C.HmacSHA1 = Hasher._createHmacHelper(SHA1);}());
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