Mercurial > projects > dcrypt
annotate dcrypt/crypto/hashes/MD4.d @ 27:8b5eaf3c2979
Fixed error in hash message padding reported by Glenn Haecker.
author | Thomas Dixon <reikon@reikon.us> |
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date | Sat, 09 May 2009 23:29:20 -0400 |
parents | 176c933827a8 |
children | ad687db713a4 |
rev | line source |
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176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
diff
changeset
|
1 /** |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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2 * This file is part of the dcrypt project. |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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3 * |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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4 * Copyright: Copyright (C) dcrypt contributors 2009. All rights reserved. |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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5 * License: MIT |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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6 * Authors: Thomas Dixon |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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7 */ |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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8 |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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9 module dcrypt.crypto.hashes.MD4; |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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10 |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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11 public import dcrypt.crypto.Hash; |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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12 |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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13 /** |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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14 * Implementation of Ron Rivest's MD4. |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
parents:
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15 * |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
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16 * Conforms: RFC 1320 |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
Thomas Dixon <reikon@reikon.us>
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17 * References: http://www.faqs.org/rfcs/rfc1320.html |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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18 * Bugs: MD4 is not cryptographically secure. |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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19 */ |
27
8b5eaf3c2979
Fixed error in hash message padding reported by Glenn Haecker.
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20 class MD4 : Hash |
8b5eaf3c2979
Fixed error in hash message padding reported by Glenn Haecker.
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21 { |
26
176c933827a8
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22 private uint h0, h1, h2, h3; |
176c933827a8
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parents:
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23 |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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24 // Shift amounts |
27
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Fixed error in hash message padding reported by Glenn Haecker.
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25 private enum |
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Fixed error in hash message padding reported by Glenn Haecker.
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26 { |
26
176c933827a8
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27 S11 = 3, |
176c933827a8
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28 S12 = 7, |
176c933827a8
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29 S13 = 11, |
176c933827a8
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30 S14 = 19, |
176c933827a8
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31 |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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32 S21 = 3, |
176c933827a8
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33 S22 = 5, |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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34 S23 = 9, |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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35 S24 = 13, |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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parents:
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36 |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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37 S31 = 3, |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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38 S32 = 9, |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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39 S33 = 11, |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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40 S34 = 15 |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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41 }; |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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42 |
27
8b5eaf3c2979
Fixed error in hash message padding reported by Glenn Haecker.
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43 this (void[] input_=null) |
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Fixed error in hash message padding reported by Glenn Haecker.
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44 { |
26
176c933827a8
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45 reset(); |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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46 super(input_); |
176c933827a8
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47 } |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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48 |
27
8b5eaf3c2979
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49 uint blockSize() |
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50 { |
26
176c933827a8
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51 return 64; |
176c933827a8
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52 } |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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53 |
27
8b5eaf3c2979
Fixed error in hash message padding reported by Glenn Haecker.
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54 uint digestSize() |
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Fixed error in hash message padding reported by Glenn Haecker.
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55 { |
26
176c933827a8
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56 return 16; |
176c933827a8
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parents:
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57 } |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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58 |
27
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59 char[] name() |
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60 { |
26
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61 return "MD4"; |
176c933827a8
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62 } |
176c933827a8
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63 |
27
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64 void transform(ubyte[] input) |
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65 { |
26
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66 uint[] w = new uint[16]; |
176c933827a8
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67 |
176c933827a8
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68 for (int i = 0, j = 0; i < 16; i++,j+=int.sizeof) |
176c933827a8
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69 w[i] = ByteConverter.LittleEndian.to!(uint)(input[j..j+int.sizeof]); |
176c933827a8
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70 |
176c933827a8
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71 uint a = h0, |
176c933827a8
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72 b = h1, |
176c933827a8
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73 c = h2, |
176c933827a8
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74 d = h3; |
176c933827a8
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75 |
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76 // Round 1 |
176c933827a8
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77 ff(a, b, c, d, w[ 0], S11); |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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78 ff(d, a, b, c, w[ 1], S12); |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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79 ff(c, d, a, b, w[ 2], S13); |
176c933827a8
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80 ff(b, c, d, a, w[ 3], S14); |
176c933827a8
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81 ff(a, b, c, d, w[ 4], S11); |
176c933827a8
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82 ff(d, a, b, c, w[ 5], S12); |
176c933827a8
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83 ff(c, d, a, b, w[ 6], S13); |
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84 ff(b, c, d, a, w[ 7], S14); |
176c933827a8
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85 ff(a, b, c, d, w[ 8], S11); |
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86 ff(d, a, b, c, w[ 9], S12); |
176c933827a8
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87 ff(c, d, a, b, w[10], S13); |
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88 ff(b, c, d, a, w[11], S14); |
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89 ff(a, b, c, d, w[12], S11); |
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90 ff(d, a, b, c, w[13], S12); |
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91 ff(c, d, a, b, w[14], S13); |
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92 ff(b, c, d, a, w[15], S14); |
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93 |
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94 // Round 2 |
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95 gg(a, b, c, d, w[ 0], S21); |
176c933827a8
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96 gg(d, a, b, c, w[ 4], S22); |
176c933827a8
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97 gg(c, d, a, b, w[ 8], S23); |
176c933827a8
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98 gg(b, c, d, a, w[12], S24); |
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99 gg(a, b, c, d, w[ 1], S21); |
176c933827a8
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100 gg(d, a, b, c, w[ 5], S22); |
176c933827a8
Implemented MD4. Refactored MD5. Replaced all instances of 'version (UnitTest)' with 'debug (UnitTest)'.
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101 gg(c, d, a, b, w[ 9], S23); |
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102 gg(b, c, d, a, w[13], S24); |
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103 gg(a, b, c, d, w[ 2], S21); |
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104 gg(d, a, b, c, w[ 6], S22); |
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105 gg(c, d, a, b, w[10], S23); |
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106 gg(b, c, d, a, w[14], S24); |
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107 gg(a, b, c, d, w[ 3], S21); |
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108 gg(d, a, b, c, w[ 7], S22); |
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109 gg(c, d, a, b, w[11], S23); |
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110 gg(b, c, d, a, w[15], S24); |
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111 |
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112 // Round 3 |
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113 hh(a, b, c, d, w[ 0], S31); |
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114 hh(d, a, b, c, w[ 8], S32); |
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115 hh(c, d, a, b, w[ 4], S33); |
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116 hh(b, c, d, a, w[12], S34); |
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117 hh(a, b, c, d, w[ 2], S31); |
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118 hh(d, a, b, c, w[10], S32); |
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119 hh(c, d, a, b, w[ 6], S33); |
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120 hh(b, c, d, a, w[14], S34); |
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121 hh(a, b, c, d, w[ 1], S31); |
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122 hh(d, a, b, c, w[ 9], S32); |
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123 hh(c, d, a, b, w[ 5], S33); |
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124 hh(b, c, d, a, w[13], S34); |
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125 hh(a, b, c, d, w[ 3], S31); |
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126 hh(d, a, b, c, w[11], S32); |
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127 hh(c, d, a, b, w[ 7], S33); |
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128 hh(b, c, d, a, w[15], S34); |
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129 |
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130 h0 += a; |
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131 h1 += b; |
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132 h2 += c; |
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133 h3 += d; |
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134 } |
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135 |
27
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136 private uint f(uint x, uint y, uint z) |
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137 { |
26
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138 return (x&y)|(~x&z); |
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139 } |
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140 |
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141 private uint h(uint x, uint y, uint z) |
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142 { |
26
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143 return x^y^z; |
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144 } |
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145 |
27
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146 private uint g(uint x, uint y, uint z) |
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147 { |
26
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148 return (x&y)|(x&z)|(y&z); |
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149 } |
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150 |
27
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151 private void ff(ref uint a, uint b, uint c, uint d, uint x, uint s) |
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152 { |
26
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153 a += f(b, c, d) + x; |
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154 a = Bitwise.rotateLeft(a, s); |
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155 } |
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156 |
27
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157 private void gg(ref uint a, uint b, uint c, uint d, uint x, uint s) |
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158 { |
26
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159 a += g(b, c, d) + x + 0x5a827999u; |
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160 a = Bitwise.rotateLeft(a, s); |
176c933827a8
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161 } |
176c933827a8
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162 |
27
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163 private void hh(ref uint a, uint b, uint c, uint d, uint x, uint s) |
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164 { |
26
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165 a += h(b, c, d) + x + 0x6ed9eba1u; |
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166 a = Bitwise.rotateLeft(a, s); |
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167 } |
176c933827a8
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168 |
27
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169 ubyte[] digest() |
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170 { |
26
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171 padMessage(MODE_MD); |
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172 ubyte[] result = new ubyte[digestSize]; |
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173 |
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174 result[0..4] = ByteConverter.LittleEndian.from!(uint)(h0); |
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175 result[4..8] = ByteConverter.LittleEndian.from!(uint)(h1); |
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176 result[8..12] = ByteConverter.LittleEndian.from!(uint)(h2); |
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177 result[12..16] = ByteConverter.LittleEndian.from!(uint)(h3); |
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178 |
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179 reset(); |
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180 return result; |
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181 } |
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182 |
27
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183 void reset() |
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184 { |
26
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185 super.reset(); |
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186 h0 = 0x67452301u; |
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187 h1 = 0xefcdab89u; |
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188 h2 = 0x98badcfeu; |
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189 h3 = 0x10325476u; |
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190 } |
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191 |
27
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192 MD4 copy() |
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193 { |
26
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194 MD4 h = new MD4(buffer[0..index]); |
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195 h.bytes = bytes; |
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196 h.h0 = h0; |
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197 h.h1 = h1; |
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198 h.h2 = h2; |
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199 h.h3 = h3; |
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200 return h; |
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201 } |
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202 |
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203 debug (UnitTest) |
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204 { |
26
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205 // Found in Tango <3 |
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206 unittest |
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207 { |
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208 static const char[][] test_inputs = [ |
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209 "", |
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210 "a", |
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211 "abc", |
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212 "message digest", |
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213 "abcdefghijklmnopqrstuvwxyz", |
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214 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", |
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215 "12345678901234567890123456789012345678901234567890123456789012345678901234567890" |
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216 ]; |
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217 |
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218 static const char[][] test_results = [ |
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219 "31d6cfe0d16ae931b73c59d7e0c089c0", |
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220 "bde52cb31de33e46245e05fbdbd6fb24", |
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221 "a448017aaf21d8525fc10ae87aa6729d", |
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222 "d9130a8164549fe818874806e1c7014b", |
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223 "d79e1c308aa5bbcdeea8ed63df412da9", |
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224 "043f8582f241db351ce627e153e7f0e4", |
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225 "e33b4ddc9c38f2199c3e7b164fcc0536" |
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226 ]; |
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227 |
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228 MD4 h = new MD4(); |
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229 foreach (uint i, char[] input; test_inputs) |
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230 { |
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231 h.update(input); |
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232 char[] digest = h.hexDigest(); |
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233 assert(digest == test_results[i], |
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234 h.name~": ("~digest~") != ("~test_results[i]~")"); |
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235 } |
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236 } |
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237 } |
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238 } |