43 lines
No EOL
1.1 KiB
JavaScript
43 lines
No EOL
1.1 KiB
JavaScript
/*!
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* Crypto-JS v2.5.4 HMAC.js
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* http://code.google.com/p/crypto-js/
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* Copyright (c) 2009-2013, 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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// Shortcuts
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var C = Crypto,
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util = C.util,
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charenc = C.charenc,
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UTF8 = charenc.UTF8,
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Binary = charenc.Binary;
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C.HMAC = function (hasher, message, key, options) {
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// Convert to byte arrays
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if (message.constructor == String) message = UTF8.stringToBytes(message);
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if (key.constructor == String) key = UTF8.stringToBytes(key);
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/* else, assume byte arrays already */
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// Allow arbitrary length keys
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if (key.length > hasher._blocksize * 4)
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key = hasher(key, { asBytes: true });
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// XOR keys with pad constants
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var okey = key.slice(0),
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ikey = key.slice(0);
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for (var i = 0; i < hasher._blocksize * 4; i++) {
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okey[i] ^= 0x5C;
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ikey[i] ^= 0x36;
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}
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var hmacbytes = hasher(okey.concat(hasher(ikey.concat(message), { asBytes: true })), { asBytes: true });
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return options && options.asBytes ? hmacbytes :
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options && options.asString ? Binary.bytesToString(hmacbytes) :
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util.bytesToHex(hmacbytes);
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};
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})(); |