| // Copyright 2014 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| /** |
| * @fileoverview SHA-512 cryptographic hash. |
| * |
| * Usage: |
| * var sha512 = new goog.crypt.Sha512(); |
| * sha512.update(bytes); |
| * var hash = sha512.digest(); |
| * |
| * @author fy@google.com (Frank Yellin) |
| */ |
| |
| goog.provide('goog.crypt.Sha512'); |
| |
| goog.require('goog.crypt.Sha2_64bit'); |
| |
| |
| |
| /** |
| * Constructs a SHA-512 cryptographic hash. |
| * |
| * @constructor |
| * @extends {goog.crypt.Sha2_64bit} |
| * @final |
| * @struct |
| */ |
| goog.crypt.Sha512 = function() { |
| goog.crypt.Sha512.base(this, 'constructor', 8 /* numHashBlocks */, |
| goog.crypt.Sha512.INIT_HASH_BLOCK_); |
| }; |
| goog.inherits(goog.crypt.Sha512, goog.crypt.Sha2_64bit); |
| |
| |
| /** @private {!Array<number>} */ |
| goog.crypt.Sha512.INIT_HASH_BLOCK_ = [ |
| // Section 5.3.5 of |
| // csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf |
| 0x6a09e667, 0xf3bcc908, // H0 |
| 0xbb67ae85, 0x84caa73b, // H1 |
| 0x3c6ef372, 0xfe94f82b, // H2 |
| 0xa54ff53a, 0x5f1d36f1, // H3 |
| 0x510e527f, 0xade682d1, // H4 |
| 0x9b05688c, 0x2b3e6c1f, // H5 |
| 0x1f83d9ab, 0xfb41bd6b, // H6 |
| 0x5be0cd19, 0x137e2179 // H7 |
| ]; |