annotate whirl.c @ 164:cd1143579f00 libtomcrypt LTC_DB_0.44

mpi.c isn't needed if we're using libtommath seperately
author Matt Johnston <matt@ucc.asn.au>
date Sun, 02 Jan 2005 17:19:46 +0000
parents 7ed585a2c53b
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.org
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10 */
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11
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12 /* WHIRLPOOL (using their new sbox) hash function by Tom St Denis */
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13
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14 #include "mycrypt.h"
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15
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16 #ifdef WHIRLPOOL
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17
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18 const struct _hash_descriptor whirlpool_desc =
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19 {
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20 "whirlpool",
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21 11,
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22 64,
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23 64,
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24
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25 /* DER encoding (not yet supported) */
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26 { 0x00 },
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27 0,
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28
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29 &whirlpool_init,
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30 &whirlpool_process,
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31 &whirlpool_done,
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32 &whirlpool_test
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33 };
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34
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35 /* the sboxes */
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36 #include "whirltab.c"
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37
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38 /* get a_{i,j} */
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39 #define GB(a,i,j) ((a[(i) & 7] >> (8 * (j))) & 255)
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40
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41 /* shortcut macro to perform three functions at once */
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42 #define theta_pi_gamma(a, i) \
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43 SB0(GB(a, i-0, 7)) ^ \
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44 SB1(GB(a, i-1, 6)) ^ \
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45 SB2(GB(a, i-2, 5)) ^ \
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46 SB3(GB(a, i-3, 4)) ^ \
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47 SB4(GB(a, i-4, 3)) ^ \
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48 SB5(GB(a, i-5, 2)) ^ \
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49 SB6(GB(a, i-6, 1)) ^ \
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50 SB7(GB(a, i-7, 0))
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51
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52 #ifdef CLEAN_STACK
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53 static int _whirlpool_compress(hash_state *md, unsigned char *buf)
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54 #else
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55 static int whirlpool_compress(hash_state *md, unsigned char *buf)
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56 #endif
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57 {
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58 ulong64 K[2][8], T[3][8];
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59 int x, y;
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60
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61 /* load the block/state */
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62 for (x = 0; x < 8; x++) {
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63 K[0][x] = md->whirlpool.state[x];
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64
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65 LOAD64H(T[0][x], buf + (8 * x));
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66 T[2][x] = T[0][x];
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67 T[0][x] ^= K[0][x];
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68 }
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69
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70 /* do rounds 1..10 */
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71 for (x = 0; x < 10; x += 2) {
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72 /* odd round */
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73 /* apply main transform to K[0] into K[1] */
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74 for (y = 0; y < 8; y++) {
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75 K[1][y] = theta_pi_gamma(K[0], y);
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76 }
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77 /* xor the constant */
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78 K[1][0] ^= cont[x];
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79
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80 /* apply main transform to T[0] into T[1] */
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81 for (y = 0; y < 8; y++) {
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82 T[1][y] = theta_pi_gamma(T[0], y) ^ K[1][y];
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83 }
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84
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85 /* even round */
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86 /* apply main transform to K[1] into K[0] */
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87 for (y = 0; y < 8; y++) {
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88 K[0][y] = theta_pi_gamma(K[1], y);
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89 }
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90 /* xor the constant */
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91 K[0][0] ^= cont[x+1];
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92
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93 /* apply main transform to T[1] into T[0] */
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94 for (y = 0; y < 8; y++) {
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95 T[0][y] = theta_pi_gamma(T[1], y) ^ K[0][y];
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96 }
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97 }
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98
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99 /* store state */
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100 for (x = 0; x < 8; x++) {
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101 md->whirlpool.state[x] ^= T[0][x] ^ T[2][x];
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102 }
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103
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104 return CRYPT_OK;
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105 }
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106
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107
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108 #ifdef CLEAN_STACK
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109 static int whirlpool_compress(hash_state *md, unsigned char *buf)
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110 {
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111 int err;
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112 err = _whirlpool_compress(md, buf);
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113 burn_stack((5 * 8 * sizeof(ulong64)) + (2 * sizeof(int)));
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114 return err;
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115 }
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116 #endif
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117
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118
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119 int whirlpool_init(hash_state * md)
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120 {
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121 _ARGCHK(md != NULL);
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122 zeromem(&md->whirlpool, sizeof(md->whirlpool));
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123 return CRYPT_OK;
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124 }
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125
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126 HASH_PROCESS(whirlpool_process, whirlpool_compress, whirlpool, 64)
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127
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128 int whirlpool_done(hash_state * md, unsigned char *hash)
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129 {
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130 int i;
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131
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132 _ARGCHK(md != NULL);
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133 _ARGCHK(hash != NULL);
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134
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135 if (md->whirlpool.curlen >= sizeof(md->whirlpool.buf)) {
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136 return CRYPT_INVALID_ARG;
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137 }
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138
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139 /* increase the length of the message */
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140 md->whirlpool.length += md->whirlpool.curlen * 8;
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141
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142 /* append the '1' bit */
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143 md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0x80;
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144
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145 /* if the length is currently above 32 bytes we append zeros
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146 * then compress. Then we can fall back to padding zeros and length
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147 * encoding like normal.
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148 */
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149 if (md->whirlpool.curlen > 32) {
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150 while (md->whirlpool.curlen < 64) {
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151 md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0;
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152 }
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153 whirlpool_compress(md, md->whirlpool.buf);
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154 md->whirlpool.curlen = 0;
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155 }
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156
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157 /* pad upto 56 bytes of zeroes (should be 32 but we only support 64-bit lengths) */
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158 while (md->whirlpool.curlen < 56) {
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159 md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0;
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160 }
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161
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162 /* store length */
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163 STORE64H(md->whirlpool.length, md->whirlpool.buf+56);
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164 whirlpool_compress(md, md->whirlpool.buf);
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165
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166 /* copy output */
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167 for (i = 0; i < 8; i++) {
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168 STORE64H(md->whirlpool.state[i], hash+(8*i));
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169 }
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170 #ifdef CLEAN_STACK
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171 zeromem(md, sizeof(*md));
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172 #endif
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173 return CRYPT_OK;
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174 }
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175
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176
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177 int whirlpool_test(void)
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178 {
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179 #ifndef LTC_TEST
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180 return CRYPT_NOP;
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181 #else
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182 static const struct {
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183 int len;
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184 unsigned char msg[128], hash[64];
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185 } tests[] = {
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186
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187 /* NULL Message */
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188 {
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189 0,
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190 { 0x00 },
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191 { 0x19, 0xFA, 0x61, 0xD7, 0x55, 0x22, 0xA4, 0x66, 0x9B, 0x44, 0xE3, 0x9C, 0x1D, 0x2E, 0x17, 0x26,
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192 0xC5, 0x30, 0x23, 0x21, 0x30, 0xD4, 0x07, 0xF8, 0x9A, 0xFE, 0xE0, 0x96, 0x49, 0x97, 0xF7, 0xA7,
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193 0x3E, 0x83, 0xBE, 0x69, 0x8B, 0x28, 0x8F, 0xEB, 0xCF, 0x88, 0xE3, 0xE0, 0x3C, 0x4F, 0x07, 0x57,
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194 0xEA, 0x89, 0x64, 0xE5, 0x9B, 0x63, 0xD9, 0x37, 0x08, 0xB1, 0x38, 0xCC, 0x42, 0xA6, 0x6E, 0xB3 }
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195 },
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diff changeset
196
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diff changeset
197
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198 /* 448-bits of 0 bits */
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199 {
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diff changeset
200
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201 56,
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202 { 0x00 },
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203 { 0x0B, 0x3F, 0x53, 0x78, 0xEB, 0xED, 0x2B, 0xF4, 0xD7, 0xBE, 0x3C, 0xFD, 0x81, 0x8C, 0x1B, 0x03,
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204 0xB6, 0xBB, 0x03, 0xD3, 0x46, 0x94, 0x8B, 0x04, 0xF4, 0xF4, 0x0C, 0x72, 0x6F, 0x07, 0x58, 0x70,
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diff changeset
205 0x2A, 0x0F, 0x1E, 0x22, 0x58, 0x80, 0xE3, 0x8D, 0xD5, 0xF6, 0xED, 0x6D, 0xE9, 0xB1, 0xE9, 0x61,
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diff changeset
206 0xE4, 0x9F, 0xC1, 0x31, 0x8D, 0x7C, 0xB7, 0x48, 0x22, 0xF3, 0xD0, 0xE2, 0xE9, 0xA7, 0xE7, 0xB0 }
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207 },
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diff changeset
208
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209 /* 520-bits of 0 bits */
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210 {
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211 65,
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212 { 0x00 },
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213 { 0x85, 0xE1, 0x24, 0xC4, 0x41, 0x5B, 0xCF, 0x43, 0x19, 0x54, 0x3E, 0x3A, 0x63, 0xFF, 0x57, 0x1D,
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diff changeset
214 0x09, 0x35, 0x4C, 0xEE, 0xBE, 0xE1, 0xE3, 0x25, 0x30, 0x8C, 0x90, 0x69, 0xF4, 0x3E, 0x2A, 0xE4,
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diff changeset
215 0xD0, 0xE5, 0x1D, 0x4E, 0xB1, 0xE8, 0x64, 0x28, 0x70, 0x19, 0x4E, 0x95, 0x30, 0xD8, 0xD8, 0xAF,
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diff changeset
216 0x65, 0x89, 0xD1, 0xBF, 0x69, 0x49, 0xDD, 0xF9, 0x0A, 0x7F, 0x12, 0x08, 0x62, 0x37, 0x95, 0xB9 }
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217 },
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diff changeset
218
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219 /* 512-bits, leading set */
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220 {
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221 64,
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222 { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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diff changeset
223 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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diff changeset
224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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diff changeset
225 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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diff changeset
226 { 0x10, 0x3E, 0x00, 0x55, 0xA9, 0xB0, 0x90, 0xE1, 0x1C, 0x8F, 0xDD, 0xEB, 0xBA, 0x06, 0xC0, 0x5A,
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diff changeset
227 0xCE, 0x8B, 0x64, 0xB8, 0x96, 0x12, 0x8F, 0x6E, 0xED, 0x30, 0x71, 0xFC, 0xF3, 0xDC, 0x16, 0x94,
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diff changeset
228 0x67, 0x78, 0xE0, 0x72, 0x23, 0x23, 0x3F, 0xD1, 0x80, 0xFC, 0x40, 0xCC, 0xDB, 0x84, 0x30, 0xA6,
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diff changeset
229 0x40, 0xE3, 0x76, 0x34, 0x27, 0x1E, 0x65, 0x5C, 0xA1, 0x67, 0x4E, 0xBF, 0xF5, 0x07, 0xF8, 0xCB }
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230 },
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diff changeset
231
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232 /* 512-bits, leading set of second byte */
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diff changeset
233 {
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234 64,
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235 { 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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diff changeset
236 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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diff changeset
237 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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diff changeset
238 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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239 { 0x35, 0x7B, 0x42, 0xEA, 0x79, 0xBC, 0x97, 0x86, 0x97, 0x5A, 0x3C, 0x44, 0x70, 0xAA, 0xB2, 0x3E,
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diff changeset
240 0x62, 0x29, 0x79, 0x7B, 0xAD, 0xBD, 0x54, 0x36, 0x5B, 0x54, 0x96, 0xE5, 0x5D, 0x9D, 0xD7, 0x9F,
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
241 0xE9, 0x62, 0x4F, 0xB4, 0x22, 0x66, 0x93, 0x0A, 0x62, 0x8E, 0xD4, 0xDB, 0x08, 0xF9, 0xDD, 0x35,
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diff changeset
242 0xEF, 0x1B, 0xE1, 0x04, 0x53, 0xFC, 0x18, 0xF4, 0x2C, 0x7F, 0x5E, 0x1F, 0x9B, 0xAE, 0x55, 0xE0 }
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diff changeset
243 },
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diff changeset
244
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diff changeset
245 /* 512-bits, leading set of last byte */
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diff changeset
246 {
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diff changeset
247 64,
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248 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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diff changeset
249 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release
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diff changeset
250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release
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diff changeset
251 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
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252 { 0x8B, 0x39, 0x04, 0xDD, 0x19, 0x81, 0x41, 0x26, 0xFD, 0x02, 0x74, 0xAB, 0x49, 0xC5, 0x97, 0xF6,
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253 0xD7, 0x75, 0x33, 0x52, 0xA2, 0xDD, 0x91, 0xFD, 0x8F, 0x9F, 0x54, 0x05, 0x4C, 0x54, 0xBF, 0x0F,
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254 0x06, 0xDB, 0x4F, 0xF7, 0x08, 0xA3, 0xA2, 0x8B, 0xC3, 0x7A, 0x92, 0x1E, 0xEE, 0x11, 0xED, 0x7B,
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255 0x6A, 0x53, 0x79, 0x32, 0xCC, 0x5E, 0x94, 0xEE, 0x1E, 0xA6, 0x57, 0x60, 0x7E, 0x36, 0xC9, 0xF7 }
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256 },
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257
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258 };
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259
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260 int i;
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261 unsigned char tmp[64];
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262 hash_state md;
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263
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264 for (i = 0; i < (int)(sizeof(tests)/sizeof(tests[0])); i++) {
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265 whirlpool_init(&md);
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266 whirlpool_process(&md, (unsigned char *)tests[i].msg, tests[i].len);
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267 whirlpool_done(&md, tmp);
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268 if (memcmp(tmp, tests[i].hash, 64) != 0) {
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269 #if 0
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270 printf("\nFailed test %d\n", i);
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271 for (i = 0; i < 64; ) {
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272 printf("%02x ", tmp[i]);
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273 if (!(++i & 15)) printf("\n");
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274 }
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275 #endif
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276 return CRYPT_FAIL_TESTVECTOR;
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277 }
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278 }
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279 return CRYPT_OK;
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280 #endif
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281 }
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282
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283
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284 #endif
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285