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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 part of crypto; | 5 part of crypto; |
| 6 | 6 |
| 7 /** | 7 /** |
| 8 * SHA1 hash function implementation. | 8 * SHA1 hash function implementation. |
| 9 */ | 9 */ |
| 10 class SHA1 extends _HashBase { | 10 class SHA1 extends _HashBase { |
| 11 final Uint32List _w; | 11 final Uint32List _w; |
| 12 | 12 |
| 13 // Construct a SHA1 hasher object. | 13 // Construct a SHA1 hasher object. |
| 14 SHA1() : _w = new Uint32List(80), super(16, 5, true) { | 14 SHA1() |
| 15 : _w = new Uint32List(80), |
| 16 super(16, 5, true) { |
| 15 _h[0] = 0x67452301; | 17 _h[0] = 0x67452301; |
| 16 _h[1] = 0xEFCDAB89; | 18 _h[1] = 0xEFCDAB89; |
| 17 _h[2] = 0x98BADCFE; | 19 _h[2] = 0x98BADCFE; |
| 18 _h[3] = 0x10325476; | 20 _h[3] = 0x10325476; |
| 19 _h[4] = 0xC3D2E1F0; | 21 _h[4] = 0xC3D2E1F0; |
| 20 } | 22 } |
| 21 | 23 |
| 22 // Returns a new instance of this Hash. | 24 // Returns a new instance of this Hash. |
| 23 SHA1 newInstance() { | 25 SHA1 newInstance() { |
| 24 return new SHA1(); | 26 return new SHA1(); |
| (...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 60 a = t & _MASK_32; | 62 a = t & _MASK_32; |
| 61 } | 63 } |
| 62 | 64 |
| 63 _h[0] = _add32(a, _h[0]); | 65 _h[0] = _add32(a, _h[0]); |
| 64 _h[1] = _add32(b, _h[1]); | 66 _h[1] = _add32(b, _h[1]); |
| 65 _h[2] = _add32(c, _h[2]); | 67 _h[2] = _add32(c, _h[2]); |
| 66 _h[3] = _add32(d, _h[3]); | 68 _h[3] = _add32(d, _h[3]); |
| 67 _h[4] = _add32(e, _h[4]); | 69 _h[4] = _add32(e, _h[4]); |
| 68 } | 70 } |
| 69 } | 71 } |
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