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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 dart.crypto; | |
6 | |
7 // The SHA1 hasher is used to compute an SHA1 message digest. | 5 // The SHA1 hasher is used to compute an SHA1 message digest. |
8 class _SHA1 extends _HashBase implements SHA1 { | 6 class _SHA1 extends _HashBase implements SHA1 { |
9 // Construct a SHA1 hasher object. | 7 // Construct a SHA1 hasher object. |
10 _SHA1() : _w = new List(80), super(16, 5, true) { | 8 _SHA1() : _w = new List(80), super(16, 5, true) { |
11 _h[0] = 0x67452301; | 9 _h[0] = 0x67452301; |
12 _h[1] = 0xEFCDAB89; | 10 _h[1] = 0xEFCDAB89; |
13 _h[2] = 0x98BADCFE; | 11 _h[2] = 0x98BADCFE; |
14 _h[3] = 0x10325476; | 12 _h[3] = 0x10325476; |
15 _h[4] = 0xC3D2E1F0; | 13 _h[4] = 0xC3D2E1F0; |
16 } | 14 } |
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58 | 56 |
59 _h[0] = _add32(a, _h[0]); | 57 _h[0] = _add32(a, _h[0]); |
60 _h[1] = _add32(b, _h[1]); | 58 _h[1] = _add32(b, _h[1]); |
61 _h[2] = _add32(c, _h[2]); | 59 _h[2] = _add32(c, _h[2]); |
62 _h[3] = _add32(d, _h[3]); | 60 _h[3] = _add32(d, _h[3]); |
63 _h[4] = _add32(e, _h[4]); | 61 _h[4] = _add32(e, _h[4]); |
64 } | 62 } |
65 | 63 |
66 List<int> _w; | 64 List<int> _w; |
67 } | 65 } |
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