54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
// Copyright 2012 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* @fileoverview SHA-256 cryptographic hash.
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*
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* Usage:
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* var sha256 = new goog.crypt.Sha256();
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* sha256.update(bytes);
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* var hash = sha256.digest();
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*
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*/
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goog.provide('goog.crypt.Sha256');
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goog.require('goog.crypt.Sha2');
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/**
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* SHA-256 cryptographic hash constructor.
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*
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* @constructor
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* @extends {goog.crypt.Sha2}
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*/
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goog.crypt.Sha256 = function() {
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goog.base(this);
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};
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goog.inherits(goog.crypt.Sha256, goog.crypt.Sha2);
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/** @override */
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goog.crypt.Sha256.prototype.reset = function() {
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this.chunk = [];
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this.inChunk = 0;
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this.total = 0;
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this.hash = [
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0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
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0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19];
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this.numHashBlocks = 8;
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};
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