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annotate dcrypt/crypto/macs/HMAC.d @ 4:3de3a2de13a0

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Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
author Thomas Dixon <reikon@reikon.us>
date Thu, 14 Aug 2008 01:45:24 -0400
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children 5cb17e09d685
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3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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1 /**
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2 * This file is part of the dcrypt project.
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3 *
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4 * Copyright: Copyright (C) dcrypt contributors 2008. All rights reserved.
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5 * License: MIT
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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6 * Authors: Thomas Dixon
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7 */
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8
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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9 module dcrypt.crypto.macs.HMAC;
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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10
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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11 import dcrypt.crypto.MAC;
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12 import dcrypt.crypto.Hash;
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13 import dcrypt.crypto.params.SymmetricKey;
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14 import dcrypt.crypto.errors.NotInitializedError;
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15
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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16 version (UnitTest) {
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17 import dcrypt.crypto.hashes.SHA1;
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18 }
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19
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20 /** Conforms: RFC2104 */
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21 class HMAC : MAC {
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22 private {
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23 ubyte[] ipad, opad, key;
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24 Hash inner, outer;
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25 bool initialized;
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26 }
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27
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28 this (Hash hash, void[] key=null) {
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29 hash.reset();
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30
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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31 inner = hash;
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32 outer = hash.copy();
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33
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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34 ipad = new ubyte[blockSize];
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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35 opad = new ubyte[blockSize];
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36
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37 reset();
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38
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39 if (key)
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40 init(new SymmetricKey(key)); // I'm lazy.
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41 }
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42
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43 void init(CipherParameters params) {
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44 SymmetricKey keyParams = cast(SymmetricKey)params;
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45 if (!keyParams)
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46 throw new InvalidParameterError(
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47 name()~": Invalid parameter passed to init");
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48
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49 if (keyParams.key.length > blockSize) {
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50 inner.update(keyParams.key);
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51 key = inner.digest();
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52 } else
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53 key = keyParams.key;
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54
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55 foreach (uint i, ubyte j; key) {
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56 ipad[i] ^= j;
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57 opad[i] ^= j;
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58 }
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59
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60 inner.update(ipad);
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61 outer.update(opad);
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62
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63 initialized = true;
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64 }
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65
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66 void update(void[] input_) {
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67 if (!initialized)
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68 throw new NotInitializedError(
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69 name()~": MAC not initialized.");
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70 inner.update(input_);
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71 }
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72
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73 char[] name() {
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74 return inner.name~"/HMAC";
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75 }
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76
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77 void reset() {
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78 ipad[] = 0x36;
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79 opad[] = 0x5c;
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80
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81 inner.reset();
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82 outer.reset();
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83 }
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84
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85 uint blockSize() {
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86 return inner.blockSize;
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87 }
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88
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89 uint macSize() {
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90 return inner.digestSize;
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91 }
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92
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93 ubyte[] finish() {
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94 outer.update(inner.digest());
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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95 ubyte[] r = outer.digest();
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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96 reset();
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97 return r;
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98 }
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99
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100 char[] hexFinish() {
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101 return Util.ubytesToHex(finish());
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102 }
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103
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104 HMAC copy() {
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105 // Ghetto... oh so ghetto :\
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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106 HMAC h = new HMAC(inner.copy());
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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107 h.inner = inner.copy();
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108 h.outer = outer.copy();
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109 h.initialized = true;
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110 return h;
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111 }
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112
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113 version (UnitTest) {
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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114 unittest {
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115 static char[][] test_keys = [
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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116 "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b",
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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117 "4a656665", // Jefe?
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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118 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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119 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"~
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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120 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"~
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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121 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"~
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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122 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
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123 ];
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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124
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125 static char[][] test_inputs = [
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126 "4869205468657265",
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127 "7768617420646f2079612077616e7420666f72206e6f7468696e673f",
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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128 "dd",
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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129 "54657374205573696e67204c6172676572205468616e20426c6f63"~
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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130 "6b2d53697a65204b6579202d2048617368204b6579204669727374"
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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131 ];
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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132
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133 static const int[] test_repeat = [
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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134 1, 1, 50, 1
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135 ];
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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136
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137 static const char[][] test_results = [
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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138 "b617318655057264e28bc0b6fb378c8ef146be00",
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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139 "effcdf6ae5eb2fa2d27416d5f184df9c259a7c79",
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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140 "125d7342b9ac11cd91a39af48aa17b4f63f175d3",
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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141 "aa4ae5e15272d00e95705637ce8a3b55ed402112"
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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142 ];
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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143
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144 HMAC h = new HMAC(new SHA1());
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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145 foreach (uint i, char[] k; test_keys) {
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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146 h.init(new SymmetricKey(Util.hexToUbytes(k)));
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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147 for (int j = 0; j < test_repeat[i]; j++)
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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148 h.update(Util.hexToUbytes(test_inputs[i]));
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
Thomas Dixon <reikon@reikon.us>
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149 char[] mac = h.hexFinish();
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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150 assert(mac == test_results[i],
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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151 h.name~": ("~mac~") != ("~test_results[i]~")");
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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152 }
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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153 }
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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154 }
3de3a2de13a0 Added MAC base class and HMAC. Added StreamCipherWrapper as part of the work on the high-level cipher API. Running on fumes, so hopefully there isn't too much stupid mixed into the code.
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155 }