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82 lines
1.9 KiB
82 lines
1.9 KiB
import Crypto from './crypto.js'; |
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/*! |
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* Crypto-JS v1.1.0 |
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* http://code.google.com/p/crypto-js/ |
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* Copyright (c) 2009, Jeff Mott. All rights reserved. |
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* http://code.google.com/p/crypto-js/wiki/License |
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*/ |
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(function(){ |
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// Shortcut |
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var util = Crypto.util; |
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// Public API |
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var SHA1 = Crypto.SHA1 = function (message, options) { |
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var digestbytes = util.wordsToBytes(SHA1._sha1(message)); |
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return options && options.asBytes ? digestbytes : |
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options && options.asString ? util.bytesToString(digestbytes) : |
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util.bytesToHex(digestbytes); |
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}; |
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// The core |
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SHA1._sha1 = function (message) { |
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var m = util.stringToWords(message), |
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l = message.length * 8, |
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w = [], |
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H0 = 1732584193, |
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H1 = -271733879, |
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H2 = -1732584194, |
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H3 = 271733878, |
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H4 = -1009589776; |
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// Padding |
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m[l >> 5] |= 0x80 << (24 - l % 32); |
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m[((l + 64 >>> 9) << 4) + 15] = l; |
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for (var i = 0; i < m.length; i += 16) { |
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var a = H0, |
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b = H1, |
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c = H2, |
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d = H3, |
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e = H4; |
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for (var j = 0; j < 80; j++) { |
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if (j < 16) w[j] = m[i + j]; |
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else { |
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var n = w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16]; |
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w[j] = (n << 1) | (n >>> 31); |
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} |
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var t = ((H0 << 5) | (H0 >>> 27)) + H4 + (w[j] >>> 0) + ( |
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j < 20 ? (H1 & H2 | ~H1 & H3) + 1518500249 : |
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j < 40 ? (H1 ^ H2 ^ H3) + 1859775393 : |
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j < 60 ? (H1 & H2 | H1 & H3 | H2 & H3) - 1894007588 : |
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(H1 ^ H2 ^ H3) - 899497514); |
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H4 = H3; |
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H3 = H2; |
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H2 = (H1 << 30) | (H1 >>> 2); |
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H1 = H0; |
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H0 = t; |
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} |
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H0 += a; |
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H1 += b; |
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H2 += c; |
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H3 += d; |
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H4 += e; |
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} |
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return [H0, H1, H2, H3, H4]; |
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}; |
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// Package private blocksize |
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SHA1._blocksize = 16; |
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})(); |