| Index: tests/standalone/io/hash_utils.dart
|
| diff --git a/tests/standalone/io/hash_utils.dart b/tests/standalone/io/hash_utils.dart
|
| deleted file mode 100644
|
| index 8c87a215d6d6707b32f2d8f3af09ad662bee3e13..0000000000000000000000000000000000000000
|
| --- a/tests/standalone/io/hash_utils.dart
|
| +++ /dev/null
|
| @@ -1,217 +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.
|
| -
|
| -/// Hash routines copied from private helpers in dart:io.
|
| -library hashes;
|
| -
|
| -// Constants.
|
| -const _MASK_8 = 0xff;
|
| -const _MASK_32 = 0xffffffff;
|
| -const _BITS_PER_BYTE = 8;
|
| -const _BYTES_PER_WORD = 4;
|
| -const _pow2_32 = 0x100000000;
|
| -
|
| -// Base class encapsulating common behavior for cryptographic hash
|
| -// functions.
|
| -abstract class _HashBase {
|
| - // Hasher state.
|
| - final int _chunkSizeInWords;
|
| - final int _digestSizeInWords;
|
| - final bool _bigEndianWords;
|
| - int _lengthInBytes = 0;
|
| - List<int> _pendingData;
|
| - List<int> _currentChunk;
|
| - List<int> _h;
|
| - bool _digestCalled = false;
|
| -
|
| - _HashBase(
|
| - this._chunkSizeInWords, this._digestSizeInWords, this._bigEndianWords)
|
| - : _pendingData = [] {
|
| - _currentChunk = new List(_chunkSizeInWords);
|
| - _h = new List(_digestSizeInWords);
|
| - }
|
| -
|
| - // Update the hasher with more data.
|
| - add(List<int> data) {
|
| - if (_digestCalled) {
|
| - throw new StateError(
|
| - 'Hash update method called after digest was retrieved');
|
| - }
|
| - _lengthInBytes += data.length;
|
| - _pendingData.addAll(data);
|
| - _iterate();
|
| - }
|
| -
|
| - // Finish the hash computation and return the digest string.
|
| - List<int> close() {
|
| - if (_digestCalled) {
|
| - return _resultAsBytes();
|
| - }
|
| - _digestCalled = true;
|
| - _finalizeData();
|
| - _iterate();
|
| - assert(_pendingData.length == 0);
|
| - return _resultAsBytes();
|
| - }
|
| -
|
| - // Returns the block size of the hash in bytes.
|
| - int get blockSize {
|
| - return _chunkSizeInWords * _BYTES_PER_WORD;
|
| - }
|
| -
|
| - // Create a fresh instance of this Hash.
|
| - newInstance();
|
| -
|
| - // One round of the hash computation.
|
| - _updateHash(List<int> m);
|
| -
|
| - // Helper methods.
|
| - _add32(x, y) => (x + y) & _MASK_32;
|
| - _roundUp(val, n) => (val + n - 1) & -n;
|
| -
|
| - // Rotate left limiting to unsigned 32-bit values.
|
| - int _rotl32(int val, int shift) {
|
| - var mod_shift = shift & 31;
|
| - return ((val << mod_shift) & _MASK_32) |
|
| - ((val & _MASK_32) >> (32 - mod_shift));
|
| - }
|
| -
|
| - // Compute the final result as a list of bytes from the hash words.
|
| - List<int> _resultAsBytes() {
|
| - var result = <int>[];
|
| - for (var i = 0; i < _h.length; i++) {
|
| - result.addAll(_wordToBytes(_h[i]));
|
| - }
|
| - return result;
|
| - }
|
| -
|
| - // Converts a list of bytes to a chunk of 32-bit words.
|
| - _bytesToChunk(List<int> data, int dataIndex) {
|
| - assert((data.length - dataIndex) >= (_chunkSizeInWords * _BYTES_PER_WORD));
|
| -
|
| - for (var wordIndex = 0; wordIndex < _chunkSizeInWords; wordIndex++) {
|
| - var w3 = _bigEndianWords ? data[dataIndex] : data[dataIndex + 3];
|
| - var w2 = _bigEndianWords ? data[dataIndex + 1] : data[dataIndex + 2];
|
| - var w1 = _bigEndianWords ? data[dataIndex + 2] : data[dataIndex + 1];
|
| - var w0 = _bigEndianWords ? data[dataIndex + 3] : data[dataIndex];
|
| - dataIndex += 4;
|
| - var word = (w3 & 0xff) << 24;
|
| - word |= (w2 & _MASK_8) << 16;
|
| - word |= (w1 & _MASK_8) << 8;
|
| - word |= (w0 & _MASK_8);
|
| - _currentChunk[wordIndex] = word;
|
| - }
|
| - }
|
| -
|
| - // Convert a 32-bit word to four bytes.
|
| - List<int> _wordToBytes(int word) {
|
| - List<int> bytes = new List(_BYTES_PER_WORD);
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| - bytes[0] = (word >> (_bigEndianWords ? 24 : 0)) & _MASK_8;
|
| - bytes[1] = (word >> (_bigEndianWords ? 16 : 8)) & _MASK_8;
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| - bytes[2] = (word >> (_bigEndianWords ? 8 : 16)) & _MASK_8;
|
| - bytes[3] = (word >> (_bigEndianWords ? 0 : 24)) & _MASK_8;
|
| - return bytes;
|
| - }
|
| -
|
| - // Iterate through data updating the hash computation for each
|
| - // chunk.
|
| - _iterate() {
|
| - var len = _pendingData.length;
|
| - var chunkSizeInBytes = _chunkSizeInWords * _BYTES_PER_WORD;
|
| - if (len >= chunkSizeInBytes) {
|
| - var index = 0;
|
| - for (; (len - index) >= chunkSizeInBytes; index += chunkSizeInBytes) {
|
| - _bytesToChunk(_pendingData, index);
|
| - _updateHash(_currentChunk);
|
| - }
|
| - _pendingData = _pendingData.sublist(index, len);
|
| - }
|
| - }
|
| -
|
| - // Finalize the data. Add a 1 bit to the end of the message. Expand with
|
| - // 0 bits and add the length of the message.
|
| - _finalizeData() {
|
| - _pendingData.add(0x80);
|
| - var contentsLength = _lengthInBytes + 9;
|
| - var chunkSizeInBytes = _chunkSizeInWords * _BYTES_PER_WORD;
|
| - var finalizedLength = _roundUp(contentsLength, chunkSizeInBytes);
|
| - var zeroPadding = finalizedLength - contentsLength;
|
| - for (var i = 0; i < zeroPadding; i++) {
|
| - _pendingData.add(0);
|
| - }
|
| - var lengthInBits = _lengthInBytes * _BITS_PER_BYTE;
|
| - assert(lengthInBits < _pow2_32);
|
| - if (_bigEndianWords) {
|
| - _pendingData.addAll(_wordToBytes(0));
|
| - _pendingData.addAll(_wordToBytes(lengthInBits & _MASK_32));
|
| - } else {
|
| - _pendingData.addAll(_wordToBytes(lengthInBits & _MASK_32));
|
| - _pendingData.addAll(_wordToBytes(0));
|
| - }
|
| - }
|
| -}
|
| -
|
| -// The SHA1 hasher is used to compute an SHA1 message digest.
|
| -class SHA1 extends _HashBase {
|
| - // 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;
|
| -}
|
|
|