30 lines
670 B
JavaScript
30 lines
670 B
JavaScript
'use strict';
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var utils = require('../utils');
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var SHA256 = require('./256');
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function SHA224() {
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if (!(this instanceof SHA224))
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return new SHA224();
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SHA256.call(this);
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this.h = [
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0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
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0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];
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}
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utils.inherits(SHA224, SHA256);
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module.exports = SHA224;
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SHA224.blockSize = 512;
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SHA224.outSize = 224;
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SHA224.hmacStrength = 192;
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SHA224.padLength = 64;
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SHA224.prototype._digest = function digest(enc) {
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// Just truncate output
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if (enc === 'hex')
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return utils.toHex32(this.h.slice(0, 7), 'big');
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else
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return utils.split32(this.h.slice(0, 7), 'big');
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};
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