67 lines
1.6 KiB
JavaScript
67 lines
1.6 KiB
JavaScript
/*
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CryptoJS v3.1.2
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code.google.com/p/crypto-js
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(c) 2009-2013 by Jeff Mott. All rights reserved.
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code.google.com/p/crypto-js/wiki/License
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*/
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(function () {
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// Shortcuts
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var C = CryptoJS;
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var C_lib = C.lib;
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var WordArray = C_lib.WordArray;
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var C_algo = C.algo;
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var SHA256 = C_algo.SHA256;
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/**
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* SHA-224 hash algorithm.
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*/
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var SHA224 = C_algo.SHA224 = SHA256.extend({
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_doReset: function () {
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this._hash = new WordArray.init([
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0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
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0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4
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]);
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},
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_doFinalize: function () {
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var hash = SHA256._doFinalize.call(this);
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hash.sigBytes -= 4;
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return hash;
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}
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});
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/**
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* Shortcut function to the hasher's object interface.
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*
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* @param {WordArray|string} message The message to hash.
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*
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* @return {WordArray} The hash.
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*
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* @static
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*
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* @example
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*
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* var hash = CryptoJS.SHA224('message');
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* var hash = CryptoJS.SHA224(wordArray);
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*/
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C.SHA224 = SHA256._createHelper(SHA224);
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/**
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* Shortcut function to the HMAC's object interface.
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*
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* @param {WordArray|string} message The message to hash.
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* @param {WordArray|string} key The secret key.
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*
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* @return {WordArray} The HMAC.
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*
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* @static
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*
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* @example
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*
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* var hmac = CryptoJS.HmacSHA224(message, key);
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*/
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C.HmacSHA224 = SHA256._createHmacHelper(SHA224);
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}());
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