Mercurial > dropbear
annotate libtomcrypt/src/headers/tomcrypt_cipher.h @ 1635:c9b5017b0a7b
drop obsolete definition for MAX_KEXHASHBUF (#65)
The last code to make use of MAX_KEXHASHBUF was removed in 2005:
https://github.com/mkj/dropbear/commit/736f370dce614b717193f45d084e9e009de723ce
Signed-off-by: Andre McCurdy <[email protected]>
author | Andre McCurdy <armccurdy@gmail.com> |
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date | Wed, 20 Mar 2019 08:01:41 -0700 |
parents | 6dba84798cd5 |
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rev | line source |
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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 /* ---- SYMMETRIC KEY STUFF ----- |
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11 * |
1471
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12 * We put each of the ciphers scheduled keys in their own structs then we put all of |
285
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13 * the key formats in one union. This makes the function prototypes easier to use. |
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14 */ |
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15 #ifdef LTC_BLOWFISH |
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16 struct blowfish_key { |
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17 ulong32 S[4][256]; |
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18 ulong32 K[18]; |
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19 }; |
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20 #endif |
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21 |
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22 #ifdef LTC_RC5 |
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23 struct rc5_key { |
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24 int rounds; |
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25 ulong32 K[50]; |
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26 }; |
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27 #endif |
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28 |
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29 #ifdef LTC_RC6 |
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30 struct rc6_key { |
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31 ulong32 K[44]; |
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32 }; |
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33 #endif |
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34 |
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35 #ifdef LTC_SAFERP |
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36 struct saferp_key { |
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37 unsigned char K[33][16]; |
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38 long rounds; |
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39 }; |
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40 #endif |
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41 |
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42 #ifdef LTC_RIJNDAEL |
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43 struct rijndael_key { |
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44 ulong32 eK[60], dK[60]; |
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45 int Nr; |
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46 }; |
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47 #endif |
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48 |
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49 #ifdef LTC_KSEED |
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50 struct kseed_key { |
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51 ulong32 K[32], dK[32]; |
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52 }; |
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53 #endif |
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54 |
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55 #ifdef LTC_KASUMI |
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56 struct kasumi_key { |
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57 ulong32 KLi1[8], KLi2[8], |
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58 KOi1[8], KOi2[8], KOi3[8], |
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59 KIi1[8], KIi2[8], KIi3[8]; |
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60 }; |
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61 #endif |
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62 |
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63 #ifdef LTC_XTEA |
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64 struct xtea_key { |
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65 unsigned long A[32], B[32]; |
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66 }; |
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67 #endif |
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68 |
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69 #ifdef LTC_TWOFISH |
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70 #ifndef LTC_TWOFISH_SMALL |
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71 struct twofish_key { |
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72 ulong32 S[4][256], K[40]; |
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73 }; |
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74 #else |
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75 struct twofish_key { |
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76 ulong32 K[40]; |
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77 unsigned char S[32], start; |
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78 }; |
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79 #endif |
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80 #endif |
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81 |
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82 #ifdef LTC_SAFER |
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83 #define LTC_SAFER_K64_DEFAULT_NOF_ROUNDS 6 |
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84 #define LTC_SAFER_K128_DEFAULT_NOF_ROUNDS 10 |
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85 #define LTC_SAFER_SK64_DEFAULT_NOF_ROUNDS 8 |
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86 #define LTC_SAFER_SK128_DEFAULT_NOF_ROUNDS 10 |
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87 #define LTC_SAFER_MAX_NOF_ROUNDS 13 |
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88 #define LTC_SAFER_BLOCK_LEN 8 |
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89 #define LTC_SAFER_KEY_LEN (1 + LTC_SAFER_BLOCK_LEN * (1 + 2 * LTC_SAFER_MAX_NOF_ROUNDS)) |
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90 typedef unsigned char safer_block_t[LTC_SAFER_BLOCK_LEN]; |
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91 typedef unsigned char safer_key_t[LTC_SAFER_KEY_LEN]; |
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92 struct safer_key { safer_key_t key; }; |
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93 #endif |
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94 |
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95 #ifdef LTC_RC2 |
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96 struct rc2_key { unsigned xkey[64]; }; |
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97 #endif |
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98 |
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99 #ifdef LTC_DES |
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100 struct des_key { |
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101 ulong32 ek[32], dk[32]; |
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102 }; |
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103 |
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104 struct des3_key { |
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105 ulong32 ek[3][32], dk[3][32]; |
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106 }; |
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107 #endif |
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108 |
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109 #ifdef LTC_CAST5 |
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110 struct cast5_key { |
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111 ulong32 K[32], keylen; |
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112 }; |
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113 #endif |
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114 |
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115 #ifdef LTC_NOEKEON |
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116 struct noekeon_key { |
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117 ulong32 K[4], dK[4]; |
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118 }; |
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119 #endif |
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120 |
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121 #ifdef LTC_SKIPJACK |
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122 struct skipjack_key { |
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123 unsigned char key[10]; |
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124 }; |
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125 #endif |
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126 |
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127 #ifdef LTC_KHAZAD |
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128 struct khazad_key { |
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129 ulong64 roundKeyEnc[8 + 1]; |
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130 ulong64 roundKeyDec[8 + 1]; |
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131 }; |
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132 #endif |
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133 |
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134 #ifdef LTC_ANUBIS |
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135 struct anubis_key { |
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136 int keyBits; |
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137 int R; |
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138 ulong32 roundKeyEnc[18 + 1][4]; |
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139 ulong32 roundKeyDec[18 + 1][4]; |
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140 }; |
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141 #endif |
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142 |
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143 #ifdef LTC_MULTI2 |
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144 struct multi2_key { |
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145 int N; |
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146 ulong32 uk[8]; |
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147 }; |
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148 #endif |
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149 |
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150 #ifdef LTC_CAMELLIA |
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151 struct camellia_key { |
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152 int R; |
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153 ulong64 kw[4], k[24], kl[6]; |
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154 }; |
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155 #endif |
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156 |
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157 typedef union Symmetric_key { |
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158 #ifdef LTC_DES |
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159 struct des_key des; |
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160 struct des3_key des3; |
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161 #endif |
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162 #ifdef LTC_RC2 |
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163 struct rc2_key rc2; |
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164 #endif |
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165 #ifdef LTC_SAFER |
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166 struct safer_key safer; |
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167 #endif |
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168 #ifdef LTC_TWOFISH |
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169 struct twofish_key twofish; |
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170 #endif |
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171 #ifdef LTC_BLOWFISH |
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172 struct blowfish_key blowfish; |
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173 #endif |
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174 #ifdef LTC_RC5 |
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175 struct rc5_key rc5; |
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176 #endif |
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177 #ifdef LTC_RC6 |
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178 struct rc6_key rc6; |
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179 #endif |
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180 #ifdef LTC_SAFERP |
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181 struct saferp_key saferp; |
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182 #endif |
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183 #ifdef LTC_RIJNDAEL |
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184 struct rijndael_key rijndael; |
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185 #endif |
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186 #ifdef LTC_XTEA |
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187 struct xtea_key xtea; |
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188 #endif |
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189 #ifdef LTC_CAST5 |
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190 struct cast5_key cast5; |
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191 #endif |
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192 #ifdef LTC_NOEKEON |
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193 struct noekeon_key noekeon; |
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194 #endif |
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195 #ifdef LTC_SKIPJACK |
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196 struct skipjack_key skipjack; |
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197 #endif |
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198 #ifdef LTC_KHAZAD |
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199 struct khazad_key khazad; |
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200 #endif |
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201 #ifdef LTC_ANUBIS |
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202 struct anubis_key anubis; |
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203 #endif |
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204 #ifdef LTC_KSEED |
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205 struct kseed_key kseed; |
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206 #endif |
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207 #ifdef LTC_KASUMI |
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208 struct kasumi_key kasumi; |
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209 #endif |
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210 #ifdef LTC_MULTI2 |
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211 struct multi2_key multi2; |
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212 #endif |
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213 #ifdef LTC_CAMELLIA |
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214 struct camellia_key camellia; |
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215 #endif |
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216 void *data; |
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217 } symmetric_key; |
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218 |
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219 #ifdef LTC_ECB_MODE |
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220 /** A block cipher ECB structure */ |
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221 typedef struct { |
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222 /** The index of the cipher chosen */ |
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223 int cipher, |
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224 /** The block size of the given cipher */ |
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225 blocklen; |
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226 /** The scheduled key */ |
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227 symmetric_key key; |
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228 } symmetric_ECB; |
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229 #endif |
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230 |
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231 #ifdef LTC_CFB_MODE |
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232 /** A block cipher CFB structure */ |
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233 typedef struct { |
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234 /** The index of the cipher chosen */ |
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235 int cipher, |
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236 /** The block size of the given cipher */ |
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237 blocklen, |
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238 /** The padding offset */ |
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239 padlen; |
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240 /** The current IV */ |
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241 unsigned char IV[MAXBLOCKSIZE], |
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242 /** The pad used to encrypt/decrypt */ |
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243 pad[MAXBLOCKSIZE]; |
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244 /** The scheduled key */ |
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245 symmetric_key key; |
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246 } symmetric_CFB; |
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247 #endif |
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248 |
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249 #ifdef LTC_OFB_MODE |
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250 /** A block cipher OFB structure */ |
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251 typedef struct { |
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252 /** The index of the cipher chosen */ |
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253 int cipher, |
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254 /** The block size of the given cipher */ |
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255 blocklen, |
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256 /** The padding offset */ |
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257 padlen; |
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258 /** The current IV */ |
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259 unsigned char IV[MAXBLOCKSIZE]; |
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260 /** The scheduled key */ |
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261 symmetric_key key; |
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262 } symmetric_OFB; |
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263 #endif |
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264 |
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265 #ifdef LTC_CBC_MODE |
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266 /** A block cipher CBC structure */ |
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267 typedef struct { |
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268 /** The index of the cipher chosen */ |
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269 int cipher, |
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270 /** The block size of the given cipher */ |
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271 blocklen; |
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272 /** The current IV */ |
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273 unsigned char IV[MAXBLOCKSIZE]; |
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274 /** The scheduled key */ |
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275 symmetric_key key; |
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276 } symmetric_CBC; |
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277 #endif |
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278 |
382
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279 |
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280 #ifdef LTC_CTR_MODE |
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281 /** A block cipher CTR structure */ |
285
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282 typedef struct { |
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283 /** The index of the cipher chosen */ |
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284 int cipher, |
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285 /** The block size of the given cipher */ |
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286 blocklen, |
285
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287 /** The padding offset */ |
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288 padlen, |
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289 /** The mode (endianess) of the CTR, 0==little, 1==big */ |
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290 mode, |
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291 /** counter width */ |
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292 ctrlen; |
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293 |
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294 /** The counter */ |
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295 unsigned char ctr[MAXBLOCKSIZE], |
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296 /** The pad used to encrypt/decrypt */ |
285
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297 pad[MAXBLOCKSIZE]; |
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298 /** The scheduled key */ |
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299 symmetric_key key; |
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300 } symmetric_CTR; |
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301 #endif |
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302 |
382
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303 |
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304 #ifdef LTC_LRW_MODE |
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305 /** A LRW structure */ |
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306 typedef struct { |
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307 /** The index of the cipher chosen (must be a 128-bit block cipher) */ |
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308 int cipher; |
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309 |
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310 /** The current IV */ |
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311 unsigned char IV[16], |
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312 |
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313 /** the tweak key */ |
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314 tweak[16], |
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315 |
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316 /** The current pad, it's the product of the first 15 bytes against the tweak key */ |
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317 pad[16]; |
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318 |
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319 /** The scheduled symmetric key */ |
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320 symmetric_key key; |
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321 |
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322 #ifdef LTC_LRW_TABLES |
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323 /** The pre-computed multiplication table */ |
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324 unsigned char PC[16][256][16]; |
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325 #endif |
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326 } symmetric_LRW; |
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327 #endif |
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328 |
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329 #ifdef LTC_F8_MODE |
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330 /** A block cipher F8 structure */ |
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331 typedef struct { |
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332 /** The index of the cipher chosen */ |
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333 int cipher, |
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334 /** The block size of the given cipher */ |
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335 blocklen, |
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336 /** The padding offset */ |
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337 padlen; |
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338 /** The current IV */ |
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339 unsigned char IV[MAXBLOCKSIZE], |
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340 MIV[MAXBLOCKSIZE]; |
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341 /** Current block count */ |
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342 ulong32 blockcnt; |
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343 /** The scheduled key */ |
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344 symmetric_key key; |
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345 } symmetric_F8; |
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346 #endif |
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347 |
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348 |
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349 /** cipher descriptor table, last entry has "name == NULL" to mark the end of table */ |
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350 extern struct ltc_cipher_descriptor { |
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351 /** name of cipher */ |
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352 const char *name; |
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353 /** internal ID */ |
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354 unsigned char ID; |
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355 /** min keysize (octets) */ |
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356 int min_key_length, |
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357 /** max keysize (octets) */ |
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358 max_key_length, |
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359 /** block size (octets) */ |
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360 block_length, |
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361 /** default number of rounds */ |
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362 default_rounds; |
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363 /** Setup the cipher |
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364 @param key The input symmetric key |
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365 @param keylen The length of the input key (octets) |
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366 @param num_rounds The requested number of rounds (0==default) |
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367 @param skey [out] The destination of the scheduled key |
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368 @return CRYPT_OK if successful |
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369 */ |
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370 int (*setup)(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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371 /** Encrypt a block |
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372 @param pt The plaintext |
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373 @param ct [out] The ciphertext |
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374 @param skey The scheduled key |
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375 @return CRYPT_OK if successful |
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376 */ |
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377 int (*ecb_encrypt)(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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378 /** Decrypt a block |
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379 @param ct The ciphertext |
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380 @param pt [out] The plaintext |
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381 @param skey The scheduled key |
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382 @return CRYPT_OK if successful |
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383 */ |
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384 int (*ecb_decrypt)(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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385 /** Test the block cipher |
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386 @return CRYPT_OK if successful, CRYPT_NOP if self-testing has been disabled |
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387 */ |
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388 int (*test)(void); |
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389 |
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390 /** Terminate the context |
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391 @param skey The scheduled key |
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392 */ |
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393 void (*done)(symmetric_key *skey); |
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394 |
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395 /** Determine a key size |
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396 @param keysize [in/out] The size of the key desired and the suggested size |
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397 @return CRYPT_OK if successful |
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398 */ |
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399 int (*keysize)(int *keysize); |
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400 |
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401 /** Accelerators **/ |
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402 /** Accelerated ECB encryption |
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403 @param pt Plaintext |
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404 @param ct Ciphertext |
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405 @param blocks The number of complete blocks to process |
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406 @param skey The scheduled key context |
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407 @return CRYPT_OK if successful |
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408 */ |
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409 int (*accel_ecb_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, symmetric_key *skey); |
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410 |
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411 /** Accelerated ECB decryption |
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412 @param pt Plaintext |
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413 @param ct Ciphertext |
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414 @param blocks The number of complete blocks to process |
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415 @param skey The scheduled key context |
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416 @return CRYPT_OK if successful |
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417 */ |
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418 int (*accel_ecb_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, symmetric_key *skey); |
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419 |
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420 /** Accelerated CBC encryption |
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421 @param pt Plaintext |
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422 @param ct Ciphertext |
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423 @param blocks The number of complete blocks to process |
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424 @param IV The initial value (input/output) |
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425 @param skey The scheduled key context |
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426 @return CRYPT_OK if successful |
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427 */ |
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428 int (*accel_cbc_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, symmetric_key *skey); |
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429 |
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430 /** Accelerated CBC decryption |
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431 @param pt Plaintext |
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432 @param ct Ciphertext |
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433 @param blocks The number of complete blocks to process |
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434 @param IV The initial value (input/output) |
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435 @param skey The scheduled key context |
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436 @return CRYPT_OK if successful |
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437 */ |
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438 int (*accel_cbc_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, unsigned char *IV, symmetric_key *skey); |
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439 |
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440 /** Accelerated CTR encryption |
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441 @param pt Plaintext |
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442 @param ct Ciphertext |
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443 @param blocks The number of complete blocks to process |
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444 @param IV The initial value (input/output) |
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445 @param mode little or big endian counter (mode=0 or mode=1) |
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446 @param skey The scheduled key context |
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447 @return CRYPT_OK if successful |
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448 */ |
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449 int (*accel_ctr_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, int mode, symmetric_key *skey); |
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450 |
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451 /** Accelerated LRW |
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452 @param pt Plaintext |
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453 @param ct Ciphertext |
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454 @param blocks The number of complete blocks to process |
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455 @param IV The initial value (input/output) |
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456 @param tweak The LRW tweak |
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457 @param skey The scheduled key context |
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458 @return CRYPT_OK if successful |
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459 */ |
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460 int (*accel_lrw_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, const unsigned char *tweak, symmetric_key *skey); |
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461 |
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462 /** Accelerated LRW |
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463 @param ct Ciphertext |
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464 @param pt Plaintext |
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465 @param blocks The number of complete blocks to process |
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466 @param IV The initial value (input/output) |
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467 @param tweak The LRW tweak |
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468 @param skey The scheduled key context |
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469 @return CRYPT_OK if successful |
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470 */ |
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471 int (*accel_lrw_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, unsigned char *IV, const unsigned char *tweak, symmetric_key *skey); |
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472 |
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473 /** Accelerated CCM packet (one-shot) |
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474 @param key The secret key to use |
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475 @param keylen The length of the secret key (octets) |
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476 @param uskey A previously scheduled key [optional can be NULL] |
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477 @param nonce The session nonce [use once] |
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478 @param noncelen The length of the nonce |
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479 @param header The header for the session |
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480 @param headerlen The length of the header (octets) |
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481 @param pt [out] The plaintext |
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482 @param ptlen The length of the plaintext (octets) |
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483 @param ct [out] The ciphertext |
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484 @param tag [out] The destination tag |
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485 @param taglen [in/out] The max size and resulting size of the authentication tag |
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486 @param direction Encrypt or Decrypt direction (0 or 1) |
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487 @return CRYPT_OK if successful |
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488 */ |
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489 int (*accel_ccm_memory)( |
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490 const unsigned char *key, unsigned long keylen, |
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491 symmetric_key *uskey, |
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492 const unsigned char *nonce, unsigned long noncelen, |
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493 const unsigned char *header, unsigned long headerlen, |
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494 unsigned char *pt, unsigned long ptlen, |
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495 unsigned char *ct, |
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496 unsigned char *tag, unsigned long *taglen, |
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497 int direction); |
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498 |
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499 /** Accelerated GCM packet (one shot) |
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500 @param key The secret key |
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501 @param keylen The length of the secret key |
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502 @param IV The initialization vector |
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503 @param IVlen The length of the initialization vector |
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504 @param adata The additional authentication data (header) |
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505 @param adatalen The length of the adata |
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506 @param pt The plaintext |
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507 @param ptlen The length of the plaintext (ciphertext length is the same) |
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508 @param ct The ciphertext |
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509 @param tag [out] The MAC tag |
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510 @param taglen [in/out] The MAC tag length |
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511 @param direction Encrypt or Decrypt mode (GCM_ENCRYPT or GCM_DECRYPT) |
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512 @return CRYPT_OK on success |
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513 */ |
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514 int (*accel_gcm_memory)( |
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515 const unsigned char *key, unsigned long keylen, |
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516 const unsigned char *IV, unsigned long IVlen, |
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517 const unsigned char *adata, unsigned long adatalen, |
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518 unsigned char *pt, unsigned long ptlen, |
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519 unsigned char *ct, |
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520 unsigned char *tag, unsigned long *taglen, |
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521 int direction); |
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522 |
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523 /** Accelerated one shot LTC_OMAC |
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524 @param key The secret key |
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525 @param keylen The key length (octets) |
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526 @param in The message |
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527 @param inlen Length of message (octets) |
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528 @param out [out] Destination for tag |
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529 @param outlen [in/out] Initial and final size of out |
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530 @return CRYPT_OK on success |
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531 */ |
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532 int (*omac_memory)( |
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533 const unsigned char *key, unsigned long keylen, |
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534 const unsigned char *in, unsigned long inlen, |
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535 unsigned char *out, unsigned long *outlen); |
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536 |
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537 /** Accelerated one shot XCBC |
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538 @param key The secret key |
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539 @param keylen The key length (octets) |
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540 @param in The message |
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541 @param inlen Length of message (octets) |
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542 @param out [out] Destination for tag |
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543 @param outlen [in/out] Initial and final size of out |
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544 @return CRYPT_OK on success |
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545 */ |
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546 int (*xcbc_memory)( |
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547 const unsigned char *key, unsigned long keylen, |
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548 const unsigned char *in, unsigned long inlen, |
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549 unsigned char *out, unsigned long *outlen); |
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550 |
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551 /** Accelerated one shot F9 |
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552 @param key The secret key |
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553 @param keylen The key length (octets) |
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554 @param in The message |
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555 @param inlen Length of message (octets) |
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556 @param out [out] Destination for tag |
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557 @param outlen [in/out] Initial and final size of out |
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558 @return CRYPT_OK on success |
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559 @remark Requires manual padding |
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560 */ |
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561 int (*f9_memory)( |
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562 const unsigned char *key, unsigned long keylen, |
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563 const unsigned char *in, unsigned long inlen, |
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564 unsigned char *out, unsigned long *outlen); |
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565 |
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566 /** Accelerated XTS encryption |
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567 @param pt Plaintext |
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568 @param ct Ciphertext |
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569 @param blocks The number of complete blocks to process |
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570 @param tweak The 128-bit encryption tweak (input/output). |
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571 The tweak should not be encrypted on input, but |
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572 next tweak will be copied encrypted on output. |
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573 @param skey1 The first scheduled key context |
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574 @param skey2 The second scheduled key context |
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575 @return CRYPT_OK if successful |
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576 */ |
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577 int (*accel_xts_encrypt)(const unsigned char *pt, unsigned char *ct, |
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578 unsigned long blocks, unsigned char *tweak, symmetric_key *skey1, |
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579 symmetric_key *skey2); |
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580 |
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581 /** Accelerated XTS decryption |
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582 @param ct Ciphertext |
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583 @param pt Plaintext |
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584 @param blocks The number of complete blocks to process |
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585 @param tweak The 128-bit encryption tweak (input/output). |
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586 The tweak should not be encrypted on input, but |
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587 next tweak will be copied encrypted on output. |
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588 @param skey1 The first scheduled key context |
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589 @param skey2 The second scheduled key context |
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590 @return CRYPT_OK if successful |
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591 */ |
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592 int (*accel_xts_decrypt)(const unsigned char *ct, unsigned char *pt, |
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593 unsigned long blocks, unsigned char *tweak, symmetric_key *skey1, |
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594 symmetric_key *skey2); |
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595 } cipher_descriptor[]; |
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596 |
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597 #ifdef LTC_BLOWFISH |
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598 int blowfish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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599 int blowfish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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600 int blowfish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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601 int blowfish_test(void); |
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602 void blowfish_done(symmetric_key *skey); |
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603 int blowfish_keysize(int *keysize); |
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604 extern const struct ltc_cipher_descriptor blowfish_desc; |
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605 #endif |
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606 |
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607 #ifdef LTC_RC5 |
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608 int rc5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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609 int rc5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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610 int rc5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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611 int rc5_test(void); |
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612 void rc5_done(symmetric_key *skey); |
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613 int rc5_keysize(int *keysize); |
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614 extern const struct ltc_cipher_descriptor rc5_desc; |
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615 #endif |
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616 |
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617 #ifdef LTC_RC6 |
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618 int rc6_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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619 int rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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620 int rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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621 int rc6_test(void); |
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622 void rc6_done(symmetric_key *skey); |
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623 int rc6_keysize(int *keysize); |
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624 extern const struct ltc_cipher_descriptor rc6_desc; |
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625 #endif |
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626 |
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627 #ifdef LTC_RC2 |
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628 int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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629 int rc2_setup_ex(const unsigned char *key, int keylen, int bits, int num_rounds, symmetric_key *skey); |
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630 int rc2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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631 int rc2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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632 int rc2_test(void); |
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633 void rc2_done(symmetric_key *skey); |
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634 int rc2_keysize(int *keysize); |
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635 extern const struct ltc_cipher_descriptor rc2_desc; |
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636 #endif |
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637 |
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638 #ifdef LTC_SAFERP |
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639 int saferp_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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640 int saferp_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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641 int saferp_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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642 int saferp_test(void); |
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643 void saferp_done(symmetric_key *skey); |
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644 int saferp_keysize(int *keysize); |
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645 extern const struct ltc_cipher_descriptor saferp_desc; |
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646 #endif |
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647 |
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648 #ifdef LTC_SAFER |
285
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649 int safer_k64_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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650 int safer_sk64_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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651 int safer_k128_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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652 int safer_sk128_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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653 int safer_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key); |
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654 int safer_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key); |
285
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655 int safer_k64_test(void); |
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656 int safer_sk64_test(void); |
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657 int safer_sk128_test(void); |
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658 void safer_done(symmetric_key *skey); |
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659 int safer_64_keysize(int *keysize); |
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660 int safer_128_keysize(int *keysize); |
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661 extern const struct ltc_cipher_descriptor safer_k64_desc, safer_k128_desc, safer_sk64_desc, safer_sk128_desc; |
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662 #endif |
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663 |
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664 #ifdef LTC_RIJNDAEL |
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665 |
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666 /* make aes an alias */ |
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667 #define aes_setup rijndael_setup |
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668 #define aes_ecb_encrypt rijndael_ecb_encrypt |
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669 #define aes_ecb_decrypt rijndael_ecb_decrypt |
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670 #define aes_test rijndael_test |
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671 #define aes_done rijndael_done |
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672 #define aes_keysize rijndael_keysize |
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673 |
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674 #define aes_enc_setup rijndael_enc_setup |
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675 #define aes_enc_ecb_encrypt rijndael_enc_ecb_encrypt |
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676 #define aes_enc_keysize rijndael_enc_keysize |
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677 |
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678 int rijndael_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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679 int rijndael_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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680 int rijndael_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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681 int rijndael_test(void); |
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682 void rijndael_done(symmetric_key *skey); |
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683 int rijndael_keysize(int *keysize); |
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684 int rijndael_enc_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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685 int rijndael_enc_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
285
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686 void rijndael_enc_done(symmetric_key *skey); |
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687 int rijndael_enc_keysize(int *keysize); |
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688 extern const struct ltc_cipher_descriptor rijndael_desc, aes_desc; |
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689 extern const struct ltc_cipher_descriptor rijndael_enc_desc, aes_enc_desc; |
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690 #endif |
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691 |
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692 #ifdef LTC_XTEA |
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693 int xtea_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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694 int xtea_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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695 int xtea_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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696 int xtea_test(void); |
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697 void xtea_done(symmetric_key *skey); |
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698 int xtea_keysize(int *keysize); |
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699 extern const struct ltc_cipher_descriptor xtea_desc; |
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700 #endif |
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701 |
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702 #ifdef LTC_TWOFISH |
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703 int twofish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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704 int twofish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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705 int twofish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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706 int twofish_test(void); |
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707 void twofish_done(symmetric_key *skey); |
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708 int twofish_keysize(int *keysize); |
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709 extern const struct ltc_cipher_descriptor twofish_desc; |
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710 #endif |
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711 |
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712 #ifdef LTC_DES |
285
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713 int des_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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714 int des_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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715 int des_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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716 int des_test(void); |
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717 void des_done(symmetric_key *skey); |
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718 int des_keysize(int *keysize); |
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719 int des3_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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720 int des3_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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721 int des3_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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722 int des3_test(void); |
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723 void des3_done(symmetric_key *skey); |
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724 int des3_keysize(int *keysize); |
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725 extern const struct ltc_cipher_descriptor des_desc, des3_desc; |
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726 #endif |
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727 |
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728 #ifdef LTC_CAST5 |
285
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729 int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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730 int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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731 int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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732 int cast5_test(void); |
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733 void cast5_done(symmetric_key *skey); |
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734 int cast5_keysize(int *keysize); |
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735 extern const struct ltc_cipher_descriptor cast5_desc; |
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736 #endif |
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737 |
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738 #ifdef LTC_NOEKEON |
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739 int noekeon_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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740 int noekeon_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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741 int noekeon_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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742 int noekeon_test(void); |
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743 void noekeon_done(symmetric_key *skey); |
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744 int noekeon_keysize(int *keysize); |
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745 extern const struct ltc_cipher_descriptor noekeon_desc; |
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746 #endif |
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747 |
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748 #ifdef LTC_SKIPJACK |
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749 int skipjack_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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750 int skipjack_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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751 int skipjack_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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752 int skipjack_test(void); |
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753 void skipjack_done(symmetric_key *skey); |
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754 int skipjack_keysize(int *keysize); |
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755 extern const struct ltc_cipher_descriptor skipjack_desc; |
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756 #endif |
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757 |
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758 #ifdef LTC_KHAZAD |
285
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759 int khazad_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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760 int khazad_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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761 int khazad_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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762 int khazad_test(void); |
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763 void khazad_done(symmetric_key *skey); |
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764 int khazad_keysize(int *keysize); |
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765 extern const struct ltc_cipher_descriptor khazad_desc; |
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766 #endif |
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767 |
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768 #ifdef LTC_ANUBIS |
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769 int anubis_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
382
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770 int anubis_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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771 int anubis_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
285
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772 int anubis_test(void); |
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773 void anubis_done(symmetric_key *skey); |
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774 int anubis_keysize(int *keysize); |
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775 extern const struct ltc_cipher_descriptor anubis_desc; |
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776 #endif |
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777 |
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778 #ifdef LTC_KSEED |
382
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779 int kseed_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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780 int kseed_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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781 int kseed_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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782 int kseed_test(void); |
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783 void kseed_done(symmetric_key *skey); |
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784 int kseed_keysize(int *keysize); |
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785 extern const struct ltc_cipher_descriptor kseed_desc; |
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786 #endif |
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787 |
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788 #ifdef LTC_KASUMI |
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789 int kasumi_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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790 int kasumi_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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791 int kasumi_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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792 int kasumi_test(void); |
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793 void kasumi_done(symmetric_key *skey); |
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794 int kasumi_keysize(int *keysize); |
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795 extern const struct ltc_cipher_descriptor kasumi_desc; |
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796 #endif |
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797 |
1435
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798 |
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799 #ifdef LTC_MULTI2 |
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800 int multi2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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801 int multi2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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802 int multi2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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803 int multi2_test(void); |
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804 void multi2_done(symmetric_key *skey); |
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805 int multi2_keysize(int *keysize); |
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806 extern const struct ltc_cipher_descriptor multi2_desc; |
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807 #endif |
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808 |
1471
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809 #ifdef LTC_CAMELLIA |
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810 int camellia_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey); |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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811 int camellia_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey); |
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812 int camellia_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey); |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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813 int camellia_test(void); |
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814 void camellia_done(symmetric_key *skey); |
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815 int camellia_keysize(int *keysize); |
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816 extern const struct ltc_cipher_descriptor camellia_desc; |
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817 #endif |
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818 |
382
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819 #ifdef LTC_ECB_MODE |
1471
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820 int ecb_start(int cipher, const unsigned char *key, |
285
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821 int keylen, int num_rounds, symmetric_ECB *ecb); |
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822 int ecb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_ECB *ecb); |
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823 int ecb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_ECB *ecb); |
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824 int ecb_done(symmetric_ECB *ecb); |
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825 #endif |
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826 |
382
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827 #ifdef LTC_CFB_MODE |
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828 int cfb_start(int cipher, const unsigned char *IV, const unsigned char *key, |
285
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829 int keylen, int num_rounds, symmetric_CFB *cfb); |
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830 int cfb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CFB *cfb); |
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831 int cfb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CFB *cfb); |
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832 int cfb_getiv(unsigned char *IV, unsigned long *len, symmetric_CFB *cfb); |
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833 int cfb_setiv(const unsigned char *IV, unsigned long len, symmetric_CFB *cfb); |
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834 int cfb_done(symmetric_CFB *cfb); |
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835 #endif |
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836 |
382
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837 #ifdef LTC_OFB_MODE |
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838 int ofb_start(int cipher, const unsigned char *IV, const unsigned char *key, |
285
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839 int keylen, int num_rounds, symmetric_OFB *ofb); |
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840 int ofb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_OFB *ofb); |
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841 int ofb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_OFB *ofb); |
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842 int ofb_getiv(unsigned char *IV, unsigned long *len, symmetric_OFB *ofb); |
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843 int ofb_setiv(const unsigned char *IV, unsigned long len, symmetric_OFB *ofb); |
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844 int ofb_done(symmetric_OFB *ofb); |
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845 #endif |
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846 |
382
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847 #ifdef LTC_CBC_MODE |
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848 int cbc_start(int cipher, const unsigned char *IV, const unsigned char *key, |
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849 int keylen, int num_rounds, symmetric_CBC *cbc); |
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850 int cbc_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CBC *cbc); |
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851 int cbc_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CBC *cbc); |
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852 int cbc_getiv(unsigned char *IV, unsigned long *len, symmetric_CBC *cbc); |
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853 int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc); |
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854 int cbc_done(symmetric_CBC *cbc); |
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855 #endif |
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856 |
382
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857 #ifdef LTC_CTR_MODE |
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858 |
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859 #define CTR_COUNTER_LITTLE_ENDIAN 0x0000 |
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860 #define CTR_COUNTER_BIG_ENDIAN 0x1000 |
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861 #define LTC_CTR_RFC3686 0x2000 |
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862 |
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863 int ctr_start( int cipher, |
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864 const unsigned char *IV, |
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865 const unsigned char *key, int keylen, |
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866 int num_rounds, int ctr_mode, |
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867 symmetric_CTR *ctr); |
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868 int ctr_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CTR *ctr); |
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869 int ctr_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CTR *ctr); |
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870 int ctr_getiv(unsigned char *IV, unsigned long *len, symmetric_CTR *ctr); |
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871 int ctr_setiv(const unsigned char *IV, unsigned long len, symmetric_CTR *ctr); |
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872 int ctr_done(symmetric_CTR *ctr); |
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873 int ctr_test(void); |
285
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874 #endif |
382
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875 |
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876 #ifdef LTC_LRW_MODE |
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877 |
1471
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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878 #define LRW_ENCRYPT LTC_ENCRYPT |
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879 #define LRW_DECRYPT LTC_DECRYPT |
382
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880 |
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881 int lrw_start( int cipher, |
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882 const unsigned char *IV, |
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883 const unsigned char *key, int keylen, |
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884 const unsigned char *tweak, |
1471
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885 int num_rounds, |
382
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886 symmetric_LRW *lrw); |
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887 int lrw_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_LRW *lrw); |
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888 int lrw_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_LRW *lrw); |
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889 int lrw_getiv(unsigned char *IV, unsigned long *len, symmetric_LRW *lrw); |
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890 int lrw_setiv(const unsigned char *IV, unsigned long len, symmetric_LRW *lrw); |
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891 int lrw_done(symmetric_LRW *lrw); |
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892 int lrw_test(void); |
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893 |
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894 /* don't call */ |
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895 int lrw_process(const unsigned char *pt, unsigned char *ct, unsigned long len, int mode, symmetric_LRW *lrw); |
1471
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896 #endif |
382
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897 |
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898 #ifdef LTC_F8_MODE |
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899 int f8_start( int cipher, const unsigned char *IV, |
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900 const unsigned char *key, int keylen, |
382
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901 const unsigned char *salt_key, int skeylen, |
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902 int num_rounds, symmetric_F8 *f8); |
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903 int f8_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_F8 *f8); |
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904 int f8_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_F8 *f8); |
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905 int f8_getiv(unsigned char *IV, unsigned long *len, symmetric_F8 *f8); |
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906 int f8_setiv(const unsigned char *IV, unsigned long len, symmetric_F8 *f8); |
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907 int f8_done(symmetric_F8 *f8); |
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908 int f8_test_mode(void); |
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909 #endif |
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910 |
1435
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911 #ifdef LTC_XTS_MODE |
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912 typedef struct { |
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913 symmetric_key key1, key2; |
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914 int cipher; |
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915 } symmetric_xts; |
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916 |
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917 int xts_start( int cipher, |
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918 const unsigned char *key1, |
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919 const unsigned char *key2, |
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920 unsigned long keylen, |
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921 int num_rounds, |
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922 symmetric_xts *xts); |
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923 |
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924 int xts_encrypt( |
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925 const unsigned char *pt, unsigned long ptlen, |
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926 unsigned char *ct, |
1471
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|
927 unsigned char *tweak, |
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928 symmetric_xts *xts); |
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929 int xts_decrypt( |
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930 const unsigned char *ct, unsigned long ptlen, |
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931 unsigned char *pt, |
1471
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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|
932 unsigned char *tweak, |
1435
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|
933 symmetric_xts *xts); |
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|
934 |
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|
935 void xts_done(symmetric_xts *xts); |
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936 int xts_test(void); |
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937 void xts_mult_x(unsigned char *I); |
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938 #endif |
382
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939 |
285
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940 int find_cipher(const char *name); |
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941 int find_cipher_any(const char *name, int blocklen, int keylen); |
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|
942 int find_cipher_id(unsigned char ID); |
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943 int register_cipher(const struct ltc_cipher_descriptor *cipher); |
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944 int unregister_cipher(const struct ltc_cipher_descriptor *cipher); |
1471
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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945 int register_all_ciphers(void); |
285
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|
946 int cipher_is_valid(int idx); |
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947 |
382
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948 LTC_MUTEX_PROTO(ltc_cipher_mutex) |
285
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949 |
1471
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|
950 /* ---- stream ciphers ---- */ |
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951 |
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|
952 #ifdef LTC_CHACHA |
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|
953 |
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|
954 typedef struct { |
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955 ulong32 input[16]; |
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|
956 unsigned char kstream[64]; |
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957 unsigned long ksleft; |
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958 unsigned long ivlen; |
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|
959 int rounds; |
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960 } chacha_state; |
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|
961 |
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962 int chacha_setup(chacha_state *st, const unsigned char *key, unsigned long keylen, int rounds); |
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963 int chacha_ivctr32(chacha_state *st, const unsigned char *iv, unsigned long ivlen, ulong32 counter); |
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964 int chacha_ivctr64(chacha_state *st, const unsigned char *iv, unsigned long ivlen, ulong64 counter); |
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965 int chacha_crypt(chacha_state *st, const unsigned char *in, unsigned long inlen, unsigned char *out); |
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966 int chacha_keystream(chacha_state *st, unsigned char *out, unsigned long outlen); |
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967 int chacha_done(chacha_state *st); |
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968 int chacha_test(void); |
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969 |
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970 #endif /* LTC_CHACHA */ |
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971 |
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972 #ifdef LTC_RC4_STREAM |
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973 |
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974 typedef struct { |
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975 unsigned int x, y; |
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976 unsigned char buf[256]; |
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977 } rc4_state; |
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978 |
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979 int rc4_stream_setup(rc4_state *st, const unsigned char *key, unsigned long keylen); |
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980 int rc4_stream_crypt(rc4_state *st, const unsigned char *in, unsigned long inlen, unsigned char *out); |
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981 int rc4_stream_keystream(rc4_state *st, unsigned char *out, unsigned long outlen); |
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982 int rc4_stream_done(rc4_state *st); |
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983 int rc4_stream_test(void); |
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984 |
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985 #endif /* LTC_RC4_STREAM */ |
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986 |
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987 #ifdef LTC_SOBER128_STREAM |
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988 |
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989 typedef struct { |
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990 ulong32 R[17], /* Working storage for the shift register */ |
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991 initR[17], /* saved register contents */ |
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992 konst, /* key dependent constant */ |
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993 sbuf; /* partial word encryption buffer */ |
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994 int nbuf; /* number of part-word stream bits buffered */ |
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995 } sober128_state; |
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996 |
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997 int sober128_stream_setup(sober128_state *st, const unsigned char *key, unsigned long keylen); |
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998 int sober128_stream_setiv(sober128_state *st, const unsigned char *iv, unsigned long ivlen); |
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999 int sober128_stream_crypt(sober128_state *st, const unsigned char *in, unsigned long inlen, unsigned char *out); |
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1000 int sober128_stream_keystream(sober128_state *st, unsigned char *out, unsigned long outlen); |
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1001 int sober128_stream_done(sober128_state *st); |
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1002 int sober128_stream_test(void); |
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1003 |
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1004 #endif /* LTC_SOBER128_STREAM */ |
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1005 |
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1006 /* ref: $Format:%D$ */ |
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1007 /* git commit: $Format:%H$ */ |
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1008 /* commit time: $Format:%ai$ */ |