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Unified Diff: sdk/lib/crypto/sha1.dart

Issue 15820008: Remove library dart:crypto (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Addressed review comments Created 7 years, 7 months ago
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Index: sdk/lib/crypto/sha1.dart
diff --git a/sdk/lib/crypto/sha1.dart b/sdk/lib/crypto/sha1.dart
deleted file mode 100644
index 8ee28ce3993b97c3e7f444b5899d2616dc29c311..0000000000000000000000000000000000000000
--- a/sdk/lib/crypto/sha1.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of dart.crypto;
-
-// The SHA1 hasher is used to compute an SHA1 message digest.
-class _SHA1 extends _HashBase implements SHA1 {
- // Construct a SHA1 hasher object.
- _SHA1() : _w = new List(80), super(16, 5, true) {
- _h[0] = 0x67452301;
- _h[1] = 0xEFCDAB89;
- _h[2] = 0x98BADCFE;
- _h[3] = 0x10325476;
- _h[4] = 0xC3D2E1F0;
- }
-
- // Returns a new instance of this Hash.
- SHA1 newInstance() {
- return new SHA1();
- }
-
- // Compute one iteration of the SHA1 algorithm with a chunk of
- // 16 32-bit pieces.
- void _updateHash(List<int> m) {
- assert(m.length == 16);
-
- var a = _h[0];
- var b = _h[1];
- var c = _h[2];
- var d = _h[3];
- var e = _h[4];
-
- for (var i = 0; i < 80; i++) {
- if (i < 16) {
- _w[i] = m[i];
- } else {
- var n = _w[i - 3] ^ _w[i - 8] ^ _w[i - 14] ^ _w[i - 16];
- _w[i] = _rotl32(n, 1);
- }
- var t = _add32(_add32(_rotl32(a, 5), e), _w[i]);
- if (i < 20) {
- t = _add32(_add32(t, (b & c) | (~b & d)), 0x5A827999);
- } else if (i < 40) {
- t = _add32(_add32(t, (b ^ c ^ d)), 0x6ED9EBA1);
- } else if (i < 60) {
- t = _add32(_add32(t, (b & c) | (b & d) | (c & d)), 0x8F1BBCDC);
- } else {
- t = _add32(_add32(t, b ^ c ^ d), 0xCA62C1D6);
- }
-
- e = d;
- d = c;
- c = _rotl32(b, 30);
- b = a;
- a = t & _MASK_32;
- }
-
- _h[0] = _add32(a, _h[0]);
- _h[1] = _add32(b, _h[1]);
- _h[2] = _add32(c, _h[2]);
- _h[3] = _add32(d, _h[3]);
- _h[4] = _add32(e, _h[4]);
- }
-
- List<int> _w;
-}
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