Mercurial > dropbear
annotate libtomcrypt/src/ciphers/noekeon.c @ 1813:b63f1e803f70
Update config.sub and config.guess to latest
author | Matt Johnston <matt@ucc.asn.au> |
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date | Wed, 31 Mar 2021 23:21:30 +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 /** |
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10 @file noekeon.c |
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11 Implementation of the Noekeon block cipher by Tom St Denis |
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12 */ |
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13 #include "tomcrypt.h" |
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14 |
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15 #ifdef LTC_NOEKEON |
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16 |
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17 const struct ltc_cipher_descriptor noekeon_desc = |
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18 { |
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19 "noekeon", |
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20 16, |
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21 16, 16, 16, 16, |
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22 &noekeon_setup, |
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23 &noekeon_ecb_encrypt, |
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24 &noekeon_ecb_decrypt, |
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25 &noekeon_test, |
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26 &noekeon_done, |
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27 &noekeon_keysize, |
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28 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL |
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29 }; |
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30 |
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31 static const ulong32 RC[] = { |
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32 0x00000080UL, 0x0000001bUL, 0x00000036UL, 0x0000006cUL, |
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33 0x000000d8UL, 0x000000abUL, 0x0000004dUL, 0x0000009aUL, |
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34 0x0000002fUL, 0x0000005eUL, 0x000000bcUL, 0x00000063UL, |
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35 0x000000c6UL, 0x00000097UL, 0x00000035UL, 0x0000006aUL, |
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36 0x000000d4UL |
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37 }; |
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38 |
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39 #define kTHETA(a, b, c, d) \ |
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40 temp = a^c; temp = temp ^ ROLc(temp, 8) ^ RORc(temp, 8); \ |
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41 b ^= temp; d ^= temp; \ |
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42 temp = b^d; temp = temp ^ ROLc(temp, 8) ^ RORc(temp, 8); \ |
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43 a ^= temp; c ^= temp; |
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44 |
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45 #define THETA(k, a, b, c, d) \ |
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46 temp = a^c; temp = temp ^ ROLc(temp, 8) ^ RORc(temp, 8); \ |
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47 b ^= temp ^ k[1]; d ^= temp ^ k[3]; \ |
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48 temp = b^d; temp = temp ^ ROLc(temp, 8) ^ RORc(temp, 8); \ |
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49 a ^= temp ^ k[0]; c ^= temp ^ k[2]; |
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50 |
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51 #define GAMMA(a, b, c, d) \ |
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52 b ^= ~(d|c); \ |
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53 a ^= c&b; \ |
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54 temp = d; d = a; a = temp;\ |
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55 c ^= a ^ b ^ d; \ |
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56 b ^= ~(d|c); \ |
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57 a ^= c&b; |
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58 |
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59 #define PI1(a, b, c, d) \ |
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60 b = ROLc(b, 1); c = ROLc(c, 5); d = ROLc(d, 2); |
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61 |
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62 #define PI2(a, b, c, d) \ |
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63 b = RORc(b, 1); c = RORc(c, 5); d = RORc(d, 2); |
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64 |
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65 /** |
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66 Initialize the Noekeon block cipher |
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67 @param key The symmetric key you wish to pass |
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68 @param keylen The key length in bytes |
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69 @param num_rounds The number of rounds desired (0 for default) |
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70 @param skey The key in as scheduled by this function. |
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71 @return CRYPT_OK if successful |
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72 */ |
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73 int noekeon_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey) |
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74 { |
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75 ulong32 temp; |
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76 |
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77 LTC_ARGCHK(key != NULL); |
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78 LTC_ARGCHK(skey != NULL); |
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79 |
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80 if (keylen != 16) { |
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81 return CRYPT_INVALID_KEYSIZE; |
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82 } |
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83 |
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84 if (num_rounds != 16 && num_rounds != 0) { |
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85 return CRYPT_INVALID_ROUNDS; |
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86 } |
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87 |
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88 LOAD32H(skey->noekeon.K[0],&key[0]); |
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89 LOAD32H(skey->noekeon.K[1],&key[4]); |
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90 LOAD32H(skey->noekeon.K[2],&key[8]); |
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91 LOAD32H(skey->noekeon.K[3],&key[12]); |
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92 |
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93 LOAD32H(skey->noekeon.dK[0],&key[0]); |
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94 LOAD32H(skey->noekeon.dK[1],&key[4]); |
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95 LOAD32H(skey->noekeon.dK[2],&key[8]); |
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96 LOAD32H(skey->noekeon.dK[3],&key[12]); |
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97 |
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98 kTHETA(skey->noekeon.dK[0], skey->noekeon.dK[1], skey->noekeon.dK[2], skey->noekeon.dK[3]); |
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99 |
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100 return CRYPT_OK; |
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101 } |
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102 |
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103 /** |
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104 Encrypts a block of text with Noekeon |
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105 @param pt The input plaintext (16 bytes) |
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106 @param ct The output ciphertext (16 bytes) |
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107 @param skey The key as scheduled |
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108 @return CRYPT_OK if successful |
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109 */ |
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110 #ifdef LTC_CLEAN_STACK |
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111 static int _noekeon_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) |
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112 #else |
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113 int noekeon_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) |
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114 #endif |
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115 { |
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116 ulong32 a,b,c,d,temp; |
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117 int r; |
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118 |
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119 LTC_ARGCHK(skey != NULL); |
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120 LTC_ARGCHK(pt != NULL); |
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121 LTC_ARGCHK(ct != NULL); |
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122 |
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123 LOAD32H(a,&pt[0]); LOAD32H(b,&pt[4]); |
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124 LOAD32H(c,&pt[8]); LOAD32H(d,&pt[12]); |
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125 |
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126 #define ROUND(i) \ |
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127 a ^= RC[i]; \ |
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128 THETA(skey->noekeon.K, a,b,c,d); \ |
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129 PI1(a,b,c,d); \ |
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130 GAMMA(a,b,c,d); \ |
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131 PI2(a,b,c,d); |
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132 |
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133 for (r = 0; r < 16; ++r) { |
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134 ROUND(r); |
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135 } |
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136 |
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137 #undef ROUND |
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138 |
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139 a ^= RC[16]; |
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140 THETA(skey->noekeon.K, a, b, c, d); |
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141 |
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142 STORE32H(a,&ct[0]); STORE32H(b,&ct[4]); |
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143 STORE32H(c,&ct[8]); STORE32H(d,&ct[12]); |
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144 |
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145 return CRYPT_OK; |
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146 } |
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147 |
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148 #ifdef LTC_CLEAN_STACK |
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149 int noekeon_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey) |
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150 { |
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151 int err = _noekeon_ecb_encrypt(pt, ct, skey); |
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152 burn_stack(sizeof(ulong32) * 5 + sizeof(int)); |
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153 return err; |
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154 } |
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155 #endif |
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156 |
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157 /** |
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158 Decrypts a block of text with Noekeon |
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159 @param ct The input ciphertext (16 bytes) |
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160 @param pt The output plaintext (16 bytes) |
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161 @param skey The key as scheduled |
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162 @return CRYPT_OK if successful |
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163 */ |
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164 #ifdef LTC_CLEAN_STACK |
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165 static int _noekeon_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) |
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166 #else |
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167 int noekeon_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) |
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168 #endif |
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169 { |
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170 ulong32 a,b,c,d, temp; |
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171 int r; |
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172 |
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173 LTC_ARGCHK(skey != NULL); |
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174 LTC_ARGCHK(pt != NULL); |
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175 LTC_ARGCHK(ct != NULL); |
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176 |
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177 LOAD32H(a,&ct[0]); LOAD32H(b,&ct[4]); |
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178 LOAD32H(c,&ct[8]); LOAD32H(d,&ct[12]); |
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179 |
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180 |
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181 #define ROUND(i) \ |
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182 THETA(skey->noekeon.dK, a,b,c,d); \ |
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183 a ^= RC[i]; \ |
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184 PI1(a,b,c,d); \ |
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185 GAMMA(a,b,c,d); \ |
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186 PI2(a,b,c,d); |
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187 |
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188 for (r = 16; r > 0; --r) { |
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189 ROUND(r); |
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190 } |
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191 |
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192 #undef ROUND |
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193 |
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194 THETA(skey->noekeon.dK, a,b,c,d); |
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195 a ^= RC[0]; |
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196 STORE32H(a,&pt[0]); STORE32H(b, &pt[4]); |
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197 STORE32H(c,&pt[8]); STORE32H(d, &pt[12]); |
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198 return CRYPT_OK; |
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199 } |
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200 |
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201 #ifdef LTC_CLEAN_STACK |
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202 int noekeon_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey) |
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203 { |
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204 int err = _noekeon_ecb_decrypt(ct, pt, skey); |
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205 burn_stack(sizeof(ulong32) * 5 + sizeof(int)); |
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206 return err; |
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207 } |
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208 #endif |
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209 |
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210 /** |
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211 Performs a self-test of the Noekeon block cipher |
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212 @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled |
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213 */ |
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214 int noekeon_test(void) |
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215 { |
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216 #ifndef LTC_TEST |
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217 return CRYPT_NOP; |
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218 #else |
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219 static const struct { |
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220 int keylen; |
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221 unsigned char key[16], pt[16], ct[16]; |
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222 } tests[] = { |
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223 { |
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224 16, |
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225 { 0xAA, 0x3C, 0x8C, 0x86, 0xD9, 0x8B, 0xF8, 0xBE, 0x21, 0xE0, 0x36, 0x09, 0x78, 0xFB, 0xE4, 0x90 }, |
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226 { 0xE4, 0x96, 0x6C, 0xD3, 0x13, 0xA0, 0x6C, 0xAF, 0xD0, 0x23, 0xC9, 0xFD, 0x45, 0x32, 0x23, 0x16 }, |
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227 { 0xA6, 0xEC, 0xB8, 0xA8, 0x61, 0xFD, 0x62, 0xD9, 0x13, 0x02, 0xFE, 0x9E, 0x47, 0x01, 0x3F, 0xC3 } |
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228 }, |
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229 { |
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230 16, |
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231 { 0xED, 0x43, 0xD1, 0x87, 0x21, 0x7E, 0xE0, 0x97, 0x3D, 0x76, 0xC3, 0x37, 0x2E, 0x7D, 0xAE, 0xD3 }, |
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232 { 0xE3, 0x38, 0x32, 0xCC, 0xF2, 0x2F, 0x2F, 0x0A, 0x4A, 0x8B, 0x8F, 0x18, 0x12, 0x20, 0x17, 0xD3 }, |
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233 { 0x94, 0xA5, 0xDF, 0xF5, 0xAE, 0x1C, 0xBB, 0x22, 0xAD, 0xEB, 0xA7, 0x0D, 0xB7, 0x82, 0x90, 0xA0 } |
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234 }, |
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235 { |
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236 16, |
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237 { 0x6F, 0xDC, 0x23, 0x38, 0xF2, 0x10, 0xFB, 0xD3, 0xC1, 0x8C, 0x02, 0xF6, 0xB4, 0x6A, 0xD5, 0xA8 }, |
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238 { 0xDB, 0x29, 0xED, 0xB5, 0x5F, 0xB3, 0x60, 0x3A, 0x92, 0xA8, 0xEB, 0x9C, 0x6D, 0x9D, 0x3E, 0x8F }, |
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239 { 0x78, 0xF3, 0x6F, 0xF8, 0x9E, 0xBB, 0x8C, 0x6A, 0xE8, 0x10, 0xF7, 0x00, 0x22, 0x15, 0x30, 0x3D } |
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240 }, |
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241 { |
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242 16, |
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243 { 0x2C, 0x0C, 0x02, 0xEF, 0x6B, 0xC4, 0xF2, 0x0B, 0x2E, 0xB9, 0xE0, 0xBF, 0xD9, 0x36, 0xC2, 0x4E }, |
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244 { 0x84, 0xE2, 0xFE, 0x64, 0xB1, 0xB9, 0xFE, 0x76, 0xA8, 0x3F, 0x45, 0xC7, 0x40, 0x7A, 0xAF, 0xEE }, |
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245 { 0x2A, 0x08, 0xD6, 0xA2, 0x1C, 0x63, 0x08, 0xB0, 0xF8, 0xBC, 0xB3, 0xA1, 0x66, 0xF7, 0xAE, 0xCF } |
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246 }, |
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247 { |
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248 16, |
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249 { 0x6F, 0x30, 0xF8, 0x9F, 0xDA, 0x6E, 0xA0, 0x91, 0x04, 0x0F, 0x6C, 0x8B, 0x7D, 0xF7, 0x2A, 0x4B }, |
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250 { 0x65, 0xB6, 0xA6, 0xD0, 0x42, 0x14, 0x08, 0x60, 0x34, 0x8D, 0x37, 0x2F, 0x01, 0xF0, 0x46, 0xBE }, |
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251 { 0x66, 0xAC, 0x0B, 0x62, 0x1D, 0x68, 0x11, 0xF5, 0x27, 0xB1, 0x13, 0x5D, 0xF3, 0x2A, 0xE9, 0x18 } |
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252 }, |
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253 { |
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254 16, |
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255 { 0xCA, 0xA4, 0x16, 0xB7, 0x1C, 0x92, 0x2E, 0xAD, 0xEB, 0xA7, 0xDB, 0x69, 0x92, 0xCB, 0x35, 0xEF }, |
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256 { 0x81, 0x6F, 0x8E, 0x4D, 0x96, 0xC6, 0xB3, 0x67, 0x83, 0xF5, 0x63, 0xC7, 0x20, 0x6D, 0x40, 0x23 }, |
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257 { 0x44, 0xF7, 0x63, 0x62, 0xF0, 0x43, 0xBB, 0x67, 0x4A, 0x75, 0x12, 0x42, 0x46, 0x29, 0x28, 0x19 } |
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258 }, |
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259 { |
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260 16, |
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261 { 0x6B, 0xCF, 0x22, 0x2F, 0xE0, 0x1B, 0xB0, 0xAA, 0xD8, 0x3C, 0x91, 0x99, 0x18, 0xB2, 0x28, 0xE8 }, |
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262 { 0x7C, 0x37, 0xC7, 0xD0, 0xAC, 0x92, 0x29, 0xF1, 0x60, 0x82, 0x93, 0x89, 0xAA, 0x61, 0xAA, 0xA9 }, |
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263 { 0xE5, 0x89, 0x1B, 0xB3, 0xFE, 0x8B, 0x0C, 0xA1, 0xA6, 0xC7, 0xBE, 0x12, 0x73, 0x0F, 0xC1, 0x19 } |
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264 }, |
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265 { |
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266 16, |
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267 { 0xE6, 0xD0, 0xF1, 0x03, 0x2E, 0xDE, 0x70, 0x8D, 0xD8, 0x9E, 0x36, 0x5C, 0x05, 0x52, 0xE7, 0x0D }, |
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268 { 0xE2, 0x42, 0xE7, 0x92, 0x0E, 0xF7, 0x82, 0xA2, 0xB8, 0x21, 0x8D, 0x26, 0xBA, 0x2D, 0xE6, 0x32 }, |
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269 { 0x1E, 0xDD, 0x75, 0x22, 0xB9, 0x36, 0x8A, 0x0F, 0x32, 0xFD, 0xD4, 0x48, 0x65, 0x12, 0x5A, 0x2F } |
285
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270 } |
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271 }; |
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272 symmetric_key key; |
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273 unsigned char tmp[2][16]; |
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274 int err, i, y; |
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275 |
285
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276 for (i = 0; i < (int)(sizeof(tests)/sizeof(tests[0])); i++) { |
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277 zeromem(&key, sizeof(key)); |
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278 if ((err = noekeon_setup(tests[i].key, tests[i].keylen, 0, &key)) != CRYPT_OK) { |
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279 return err; |
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280 } |
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281 |
285
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282 noekeon_ecb_encrypt(tests[i].pt, tmp[0], &key); |
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283 noekeon_ecb_decrypt(tmp[0], tmp[1], &key); |
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284 if (compare_testvector(tmp[0], 16, tests[i].ct, 16, "Noekeon Encrypt", i) || |
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285 compare_testvector(tmp[1], 16, tests[i].pt, 16, "Noekeon Decrypt", i)) { |
285
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286 return CRYPT_FAIL_TESTVECTOR; |
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287 } |
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288 |
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289 /* now see if we can encrypt all zero bytes 1000 times, decrypt and come back where we started */ |
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290 for (y = 0; y < 16; y++) tmp[0][y] = 0; |
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291 for (y = 0; y < 1000; y++) noekeon_ecb_encrypt(tmp[0], tmp[0], &key); |
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292 for (y = 0; y < 1000; y++) noekeon_ecb_decrypt(tmp[0], tmp[0], &key); |
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293 for (y = 0; y < 16; y++) if (tmp[0][y] != 0) return CRYPT_FAIL_TESTVECTOR; |
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294 } |
285
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295 return CRYPT_OK; |
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296 #endif |
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297 } |
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298 |
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299 /** Terminate the context |
285
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300 @param skey The scheduled key |
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301 */ |
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302 void noekeon_done(symmetric_key *skey) |
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303 { |
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304 LTC_UNUSED_PARAM(skey); |
285
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305 } |
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306 |
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307 /** |
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308 Gets suitable key size |
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309 @param keysize [in/out] The length of the recommended key (in bytes). This function will store the suitable size back in this variable. |
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310 @return CRYPT_OK if the input key size is acceptable. |
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311 */ |
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312 int noekeon_keysize(int *keysize) |
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313 { |
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314 LTC_ARGCHK(keysize != NULL); |
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315 if (*keysize < 16) { |
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316 return CRYPT_INVALID_KEYSIZE; |
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317 } else { |
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318 *keysize = 16; |
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319 return CRYPT_OK; |
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320 } |
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321 } |
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322 |
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323 #endif |
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324 |
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325 |
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326 /* ref: $Format:%D$ */ |
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327 /* git commit: $Format:%H$ */ |
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328 /* commit time: $Format:%ai$ */ |