Mercurial > dropbear
annotate libtomcrypt/src/hashes/whirl/whirl.c @ 999:295a08e9d07e
Document ~/.ssh/id_dropbear
author | Matt Johnston <matt@ucc.asn.au> |
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date | Wed, 28 Jan 2015 22:22:32 +0800 |
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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.com |
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10 */ |
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11 |
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12 /** |
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13 @file whirl.c |
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14 WHIRLPOOL (using their new sbox) hash function by Tom St Denis |
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15 */ |
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16 |
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17 #include "tomcrypt.h" |
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18 |
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19 #ifdef WHIRLPOOL |
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20 |
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21 const struct ltc_hash_descriptor whirlpool_desc = |
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22 { |
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23 "whirlpool", |
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24 11, |
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25 64, |
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26 64, |
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27 |
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28 /* OID */ |
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29 { 1, 0, 10118, 3, 0, 55 }, |
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30 6, |
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31 |
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32 &whirlpool_init, |
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33 &whirlpool_process, |
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34 &whirlpool_done, |
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35 &whirlpool_test, |
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36 NULL |
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37 }; |
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38 |
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39 /* the sboxes */ |
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40 #include "whirltab.c" |
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41 |
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42 /* get a_{i,j} */ |
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43 #define GB(a,i,j) ((a[(i) & 7] >> (8 * (j))) & 255) |
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44 |
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45 /* shortcut macro to perform three functions at once */ |
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46 #define theta_pi_gamma(a, i) \ |
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47 SB0(GB(a, i-0, 7)) ^ \ |
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48 SB1(GB(a, i-1, 6)) ^ \ |
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49 SB2(GB(a, i-2, 5)) ^ \ |
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50 SB3(GB(a, i-3, 4)) ^ \ |
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51 SB4(GB(a, i-4, 3)) ^ \ |
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52 SB5(GB(a, i-5, 2)) ^ \ |
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53 SB6(GB(a, i-6, 1)) ^ \ |
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54 SB7(GB(a, i-7, 0)) |
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55 |
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56 #ifdef LTC_CLEAN_STACK |
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57 static int _whirlpool_compress(hash_state *md, unsigned char *buf) |
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58 #else |
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59 static int whirlpool_compress(hash_state *md, unsigned char *buf) |
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60 #endif |
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61 { |
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62 ulong64 K[2][8], T[3][8]; |
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63 int x, y; |
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64 |
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65 /* load the block/state */ |
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66 for (x = 0; x < 8; x++) { |
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67 K[0][x] = md->whirlpool.state[x]; |
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68 |
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69 LOAD64H(T[0][x], buf + (8 * x)); |
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70 T[2][x] = T[0][x]; |
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71 T[0][x] ^= K[0][x]; |
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72 } |
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73 |
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74 /* do rounds 1..10 */ |
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75 for (x = 0; x < 10; x += 2) { |
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76 /* odd round */ |
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77 /* apply main transform to K[0] into K[1] */ |
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78 for (y = 0; y < 8; y++) { |
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79 K[1][y] = theta_pi_gamma(K[0], y); |
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80 } |
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81 /* xor the constant */ |
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82 K[1][0] ^= cont[x]; |
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83 |
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84 /* apply main transform to T[0] into T[1] */ |
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85 for (y = 0; y < 8; y++) { |
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86 T[1][y] = theta_pi_gamma(T[0], y) ^ K[1][y]; |
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87 } |
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88 |
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89 /* even round */ |
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90 /* apply main transform to K[1] into K[0] */ |
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91 for (y = 0; y < 8; y++) { |
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92 K[0][y] = theta_pi_gamma(K[1], y); |
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93 } |
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94 /* xor the constant */ |
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95 K[0][0] ^= cont[x+1]; |
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96 |
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97 /* apply main transform to T[1] into T[0] */ |
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98 for (y = 0; y < 8; y++) { |
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99 T[0][y] = theta_pi_gamma(T[1], y) ^ K[0][y]; |
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100 } |
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101 } |
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102 |
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103 /* store state */ |
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104 for (x = 0; x < 8; x++) { |
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105 md->whirlpool.state[x] ^= T[0][x] ^ T[2][x]; |
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106 } |
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107 |
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108 return CRYPT_OK; |
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109 } |
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110 |
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111 |
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112 #ifdef LTC_CLEAN_STACK |
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113 static int whirlpool_compress(hash_state *md, unsigned char *buf) |
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114 { |
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115 int err; |
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116 err = _whirlpool_compress(md, buf); |
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117 burn_stack((5 * 8 * sizeof(ulong64)) + (2 * sizeof(int))); |
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118 return err; |
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119 } |
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120 #endif |
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121 |
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122 |
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123 /** |
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124 Initialize the hash state |
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125 @param md The hash state you wish to initialize |
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126 @return CRYPT_OK if successful |
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127 */ |
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128 int whirlpool_init(hash_state * md) |
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129 { |
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130 LTC_ARGCHK(md != NULL); |
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131 zeromem(&md->whirlpool, sizeof(md->whirlpool)); |
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132 return CRYPT_OK; |
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133 } |
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134 |
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135 /** |
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136 Process a block of memory though the hash |
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137 @param md The hash state |
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138 @param in The data to hash |
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139 @param inlen The length of the data (octets) |
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140 @return CRYPT_OK if successful |
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141 */ |
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142 HASH_PROCESS(whirlpool_process, whirlpool_compress, whirlpool, 64) |
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143 |
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144 /** |
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145 Terminate the hash to get the digest |
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146 @param md The hash state |
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147 @param out [out] The destination of the hash (64 bytes) |
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148 @return CRYPT_OK if successful |
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149 */ |
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150 int whirlpool_done(hash_state * md, unsigned char *out) |
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151 { |
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152 int i; |
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153 |
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154 LTC_ARGCHK(md != NULL); |
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155 LTC_ARGCHK(out != NULL); |
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156 |
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157 if (md->whirlpool.curlen >= sizeof(md->whirlpool.buf)) { |
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158 return CRYPT_INVALID_ARG; |
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159 } |
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160 |
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161 /* increase the length of the message */ |
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162 md->whirlpool.length += md->whirlpool.curlen * 8; |
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163 |
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164 /* append the '1' bit */ |
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165 md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0x80; |
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166 |
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167 /* if the length is currently above 32 bytes we append zeros |
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168 * then compress. Then we can fall back to padding zeros and length |
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169 * encoding like normal. |
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170 */ |
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171 if (md->whirlpool.curlen > 32) { |
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172 while (md->whirlpool.curlen < 64) { |
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173 md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0; |
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174 } |
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175 whirlpool_compress(md, md->whirlpool.buf); |
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176 md->whirlpool.curlen = 0; |
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177 } |
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178 |
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179 /* pad upto 56 bytes of zeroes (should be 32 but we only support 64-bit lengths) */ |
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180 while (md->whirlpool.curlen < 56) { |
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181 md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0; |
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182 } |
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183 |
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184 /* store length */ |
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185 STORE64H(md->whirlpool.length, md->whirlpool.buf+56); |
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186 whirlpool_compress(md, md->whirlpool.buf); |
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187 |
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188 /* copy output */ |
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189 for (i = 0; i < 8; i++) { |
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190 STORE64H(md->whirlpool.state[i], out+(8*i)); |
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191 } |
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192 #ifdef LTC_CLEAN_STACK |
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193 zeromem(md, sizeof(*md)); |
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194 #endif |
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195 return CRYPT_OK; |
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196 } |
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197 |
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198 /** |
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199 Self-test the hash |
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200 @return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled |
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201 */ |
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202 int whirlpool_test(void) |
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203 { |
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204 #ifndef LTC_TEST |
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205 return CRYPT_NOP; |
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206 #else |
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207 static const struct { |
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208 int len; |
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209 unsigned char msg[128], hash[64]; |
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210 } tests[] = { |
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211 |
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212 /* NULL Message */ |
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213 { |
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214 0, |
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215 { 0x00 }, |
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216 { 0x19, 0xFA, 0x61, 0xD7, 0x55, 0x22, 0xA4, 0x66, 0x9B, 0x44, 0xE3, 0x9C, 0x1D, 0x2E, 0x17, 0x26, |
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217 0xC5, 0x30, 0x23, 0x21, 0x30, 0xD4, 0x07, 0xF8, 0x9A, 0xFE, 0xE0, 0x96, 0x49, 0x97, 0xF7, 0xA7, |
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218 0x3E, 0x83, 0xBE, 0x69, 0x8B, 0x28, 0x8F, 0xEB, 0xCF, 0x88, 0xE3, 0xE0, 0x3C, 0x4F, 0x07, 0x57, |
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219 0xEA, 0x89, 0x64, 0xE5, 0x9B, 0x63, 0xD9, 0x37, 0x08, 0xB1, 0x38, 0xCC, 0x42, 0xA6, 0x6E, 0xB3 } |
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220 }, |
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221 |
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222 |
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223 /* 448-bits of 0 bits */ |
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224 { |
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225 |
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226 56, |
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227 { 0x00 }, |
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228 { 0x0B, 0x3F, 0x53, 0x78, 0xEB, 0xED, 0x2B, 0xF4, 0xD7, 0xBE, 0x3C, 0xFD, 0x81, 0x8C, 0x1B, 0x03, |
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229 0xB6, 0xBB, 0x03, 0xD3, 0x46, 0x94, 0x8B, 0x04, 0xF4, 0xF4, 0x0C, 0x72, 0x6F, 0x07, 0x58, 0x70, |
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230 0x2A, 0x0F, 0x1E, 0x22, 0x58, 0x80, 0xE3, 0x8D, 0xD5, 0xF6, 0xED, 0x6D, 0xE9, 0xB1, 0xE9, 0x61, |
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231 0xE4, 0x9F, 0xC1, 0x31, 0x8D, 0x7C, 0xB7, 0x48, 0x22, 0xF3, 0xD0, 0xE2, 0xE9, 0xA7, 0xE7, 0xB0 } |
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232 }, |
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233 |
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234 /* 520-bits of 0 bits */ |
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235 { |
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236 65, |
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237 { 0x00 }, |
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238 { 0x85, 0xE1, 0x24, 0xC4, 0x41, 0x5B, 0xCF, 0x43, 0x19, 0x54, 0x3E, 0x3A, 0x63, 0xFF, 0x57, 0x1D, |
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239 0x09, 0x35, 0x4C, 0xEE, 0xBE, 0xE1, 0xE3, 0x25, 0x30, 0x8C, 0x90, 0x69, 0xF4, 0x3E, 0x2A, 0xE4, |
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240 0xD0, 0xE5, 0x1D, 0x4E, 0xB1, 0xE8, 0x64, 0x28, 0x70, 0x19, 0x4E, 0x95, 0x30, 0xD8, 0xD8, 0xAF, |
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241 0x65, 0x89, 0xD1, 0xBF, 0x69, 0x49, 0xDD, 0xF9, 0x0A, 0x7F, 0x12, 0x08, 0x62, 0x37, 0x95, 0xB9 } |
1b9e69c058d2
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242 }, |
1b9e69c058d2
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243 |
1b9e69c058d2
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244 /* 512-bits, leading set */ |
1b9e69c058d2
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245 { |
1b9e69c058d2
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246 64, |
1b9e69c058d2
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247 { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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248 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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249 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, |
1b9e69c058d2
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251 { 0x10, 0x3E, 0x00, 0x55, 0xA9, 0xB0, 0x90, 0xE1, 0x1C, 0x8F, 0xDD, 0xEB, 0xBA, 0x06, 0xC0, 0x5A, |
1b9e69c058d2
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252 0xCE, 0x8B, 0x64, 0xB8, 0x96, 0x12, 0x8F, 0x6E, 0xED, 0x30, 0x71, 0xFC, 0xF3, 0xDC, 0x16, 0x94, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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253 0x67, 0x78, 0xE0, 0x72, 0x23, 0x23, 0x3F, 0xD1, 0x80, 0xFC, 0x40, 0xCC, 0xDB, 0x84, 0x30, 0xA6, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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254 0x40, 0xE3, 0x76, 0x34, 0x27, 0x1E, 0x65, 0x5C, 0xA1, 0x67, 0x4E, 0xBF, 0xF5, 0x07, 0xF8, 0xCB } |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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255 }, |
1b9e69c058d2
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256 |
1b9e69c058d2
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257 /* 512-bits, leading set of second byte */ |
1b9e69c058d2
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258 { |
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259 64, |
1b9e69c058d2
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260 { 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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261 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
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262 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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263 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
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264 { 0x35, 0x7B, 0x42, 0xEA, 0x79, 0xBC, 0x97, 0x86, 0x97, 0x5A, 0x3C, 0x44, 0x70, 0xAA, 0xB2, 0x3E, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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265 0x62, 0x29, 0x79, 0x7B, 0xAD, 0xBD, 0x54, 0x36, 0x5B, 0x54, 0x96, 0xE5, 0x5D, 0x9D, 0xD7, 0x9F, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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266 0xE9, 0x62, 0x4F, 0xB4, 0x22, 0x66, 0x93, 0x0A, 0x62, 0x8E, 0xD4, 0xDB, 0x08, 0xF9, 0xDD, 0x35, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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267 0xEF, 0x1B, 0xE1, 0x04, 0x53, 0xFC, 0x18, 0xF4, 0x2C, 0x7F, 0x5E, 0x1F, 0x9B, 0xAE, 0x55, 0xE0 } |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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268 }, |
1b9e69c058d2
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269 |
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270 /* 512-bits, leading set of last byte */ |
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271 { |
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272 64, |
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273 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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274 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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275 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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276 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 }, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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277 { 0x8B, 0x39, 0x04, 0xDD, 0x19, 0x81, 0x41, 0x26, 0xFD, 0x02, 0x74, 0xAB, 0x49, 0xC5, 0x97, 0xF6, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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278 0xD7, 0x75, 0x33, 0x52, 0xA2, 0xDD, 0x91, 0xFD, 0x8F, 0x9F, 0x54, 0x05, 0x4C, 0x54, 0xBF, 0x0F, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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279 0x06, 0xDB, 0x4F, 0xF7, 0x08, 0xA3, 0xA2, 0x8B, 0xC3, 0x7A, 0x92, 0x1E, 0xEE, 0x11, 0xED, 0x7B, |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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280 0x6A, 0x53, 0x79, 0x32, 0xCC, 0x5E, 0x94, 0xEE, 0x1E, 0xA6, 0x57, 0x60, 0x7E, 0x36, 0xC9, 0xF7 } |
1b9e69c058d2
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
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281 }, |
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282 |
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283 }; |
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284 |
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285 int i; |
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286 unsigned char tmp[64]; |
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287 hash_state md; |
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288 |
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289 for (i = 0; i < (int)(sizeof(tests)/sizeof(tests[0])); i++) { |
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290 whirlpool_init(&md); |
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291 whirlpool_process(&md, (unsigned char *)tests[i].msg, tests[i].len); |
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292 whirlpool_done(&md, tmp); |
382
0cbe8f6dbf9e
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285
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293 if (XMEMCMP(tmp, tests[i].hash, 64) != 0) { |
285
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294 #if 0 |
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295 printf("\nFailed test %d\n", i); |
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296 for (i = 0; i < 64; ) { |
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297 printf("%02x ", tmp[i]); |
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298 if (!(++i & 15)) printf("\n"); |
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299 } |
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300 #endif |
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301 return CRYPT_FAIL_TESTVECTOR; |
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302 } |
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303 } |
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304 return CRYPT_OK; |
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305 #endif |
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306 } |
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307 |
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308 |
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309 #endif |
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310 |
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311 |
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312 /* $Source: /cvs/libtom/libtomcrypt/src/hashes/whirl/whirl.c,v $ */ |
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313 /* $Revision: 1.8 $ */ |
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314 /* $Date: 2006/11/01 09:28:17 $ */ |