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annotate libtomcrypt/src/misc/crypt/crypt_sizes.c @ 1855:35d504d59c05

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Implement server-side support for sk-ecdsa U2F-backed keys (#142) * Implement server-side support for sk-ecdsa U2F-backed keys * Fix out-of-bounds read on normal ecdsa-sha2-[identifier] keys * Fix one more potential out-of-bounds read * Check if nistp256 curve is used in sk-ecdsa-sha2- key It's the only allowed curve per PROTOCOL.u2f specification * Implement server-side support for sk-ed25519 FIDO2-backed keys * Keys with type sk-* make no sense as host keys, so they should be disabled * fix typo * Make sk-ecdsa call buf_ecdsa_verify This reduces code duplication, the SK code just handles the different message format. * Reduce sk specific code The application id can be stored in signkey, then we don't need to call sk-specific functions from svr-authpubkey * Remove debugging output, which causes compilation errors with DEBUG_TRACE disabled * Proper cleanup of sk_app Co-authored-by: Matt Johnston <[email protected]>
author egor-duda <egor-duda@users.noreply.github.com>
date Sat, 22 Jan 2022 16:53:04 +0300
parents e9dba7abd939
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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10
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11 /**
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12 @file crypt_sizes.c
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13
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14 Make various struct sizes available to dynamic languages
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15 like Python - Larry Bugbee, February 2013
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16
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17 LB - Dec 2013 - revised to include compiler define options
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18 */
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19
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20
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21 typedef struct {
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22 const char *name;
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23 const unsigned int size;
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24 } crypt_size;
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25
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26 #define _SZ_STRINGIFY_S(s) { #s, sizeof(struct s) }
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27 #define _SZ_STRINGIFY_T(s) { #s, sizeof(s) }
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28
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29 static const crypt_size _crypt_sizes[] = {
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30 /* hash state sizes */
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31 _SZ_STRINGIFY_S(ltc_hash_descriptor),
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32 _SZ_STRINGIFY_T(hash_state),
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33 #ifdef LTC_CHC_HASH
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34 _SZ_STRINGIFY_S(chc_state),
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35 #endif
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36 #ifdef LTC_WHIRLPOOL
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37 _SZ_STRINGIFY_S(whirlpool_state),
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38 #endif
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39 #ifdef LTC_SHA3
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40 _SZ_STRINGIFY_S(sha3_state),
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41 #endif
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42 #ifdef LTC_SHA512
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43 _SZ_STRINGIFY_S(sha512_state),
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44 #endif
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45 #ifdef LTC_SHA256
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46 _SZ_STRINGIFY_S(sha256_state),
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47 #endif
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48 #ifdef LTC_SHA1
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49 _SZ_STRINGIFY_S(sha1_state),
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50 #endif
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51 #ifdef LTC_MD5
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52 _SZ_STRINGIFY_S(md5_state),
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53 #endif
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54 #ifdef LTC_MD4
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55 _SZ_STRINGIFY_S(md4_state),
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56 #endif
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57 #ifdef LTC_MD2
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58 _SZ_STRINGIFY_S(md2_state),
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59 #endif
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60 #ifdef LTC_TIGER
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61 _SZ_STRINGIFY_S(tiger_state),
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62 #endif
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63 #ifdef LTC_RIPEMD128
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64 _SZ_STRINGIFY_S(rmd128_state),
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65 #endif
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66 #ifdef LTC_RIPEMD160
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67 _SZ_STRINGIFY_S(rmd160_state),
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68 #endif
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69 #ifdef LTC_RIPEMD256
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70 _SZ_STRINGIFY_S(rmd256_state),
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71 #endif
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72 #ifdef LTC_RIPEMD320
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73 _SZ_STRINGIFY_S(rmd320_state),
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74 #endif
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75 #ifdef LTC_BLAKE2S
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76 _SZ_STRINGIFY_S(blake2s_state),
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77 #endif
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78 #ifdef LTC_BLAKE2B
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79 _SZ_STRINGIFY_S(blake2b_state),
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80 #endif
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81
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82 /* block cipher key sizes */
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83 _SZ_STRINGIFY_S(ltc_cipher_descriptor),
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84 _SZ_STRINGIFY_T(symmetric_key),
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85 #ifdef LTC_ANUBIS
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86 _SZ_STRINGIFY_S(anubis_key),
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87 #endif
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88 #ifdef LTC_CAMELLIA
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89 _SZ_STRINGIFY_S(camellia_key),
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90 #endif
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91 #ifdef LTC_BLOWFISH
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92 _SZ_STRINGIFY_S(blowfish_key),
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93 #endif
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94 #ifdef LTC_CAST5
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95 _SZ_STRINGIFY_S(cast5_key),
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96 #endif
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97 #ifdef LTC_DES
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98 _SZ_STRINGIFY_S(des_key),
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99 _SZ_STRINGIFY_S(des3_key),
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100 #endif
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101 #ifdef LTC_KASUMI
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102 _SZ_STRINGIFY_S(kasumi_key),
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103 #endif
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104 #ifdef LTC_KHAZAD
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105 _SZ_STRINGIFY_S(khazad_key),
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106 #endif
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107 #ifdef LTC_KSEED
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108 _SZ_STRINGIFY_S(kseed_key),
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109 #endif
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110 #ifdef LTC_MULTI2
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111 _SZ_STRINGIFY_S(multi2_key),
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112 #endif
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113 #ifdef LTC_NOEKEON
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114 _SZ_STRINGIFY_S(noekeon_key),
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115 #endif
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116 #ifdef LTC_RC2
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117 _SZ_STRINGIFY_S(rc2_key),
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118 #endif
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119 #ifdef LTC_RC5
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120 _SZ_STRINGIFY_S(rc5_key),
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121 #endif
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122 #ifdef LTC_RC6
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123 _SZ_STRINGIFY_S(rc6_key),
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124 #endif
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125 #ifdef LTC_SKIPJACK
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126 _SZ_STRINGIFY_S(skipjack_key),
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127 #endif
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128 #ifdef LTC_XTEA
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129 _SZ_STRINGIFY_S(xtea_key),
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130 #endif
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131 #ifdef LTC_RIJNDAEL
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132 _SZ_STRINGIFY_S(rijndael_key),
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133 #endif
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134 #ifdef LTC_SAFER
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135 _SZ_STRINGIFY_S(safer_key),
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136 #endif
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137 #ifdef LTC_SAFERP
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138 _SZ_STRINGIFY_S(saferp_key),
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139 #endif
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140 #ifdef LTC_TWOFISH
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141 _SZ_STRINGIFY_S(twofish_key),
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142 #endif
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143
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144 /* mode sizes */
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145 #ifdef LTC_ECB_MODE
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146 _SZ_STRINGIFY_T(symmetric_ECB),
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147 #endif
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148 #ifdef LTC_CFB_MODE
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149 _SZ_STRINGIFY_T(symmetric_CFB),
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150 #endif
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151 #ifdef LTC_OFB_MODE
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152 _SZ_STRINGIFY_T(symmetric_OFB),
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153 #endif
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154 #ifdef LTC_CBC_MODE
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155 _SZ_STRINGIFY_T(symmetric_CBC),
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156 #endif
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157 #ifdef LTC_CTR_MODE
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158 _SZ_STRINGIFY_T(symmetric_CTR),
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159 #endif
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160 #ifdef LTC_LRW_MODE
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161 _SZ_STRINGIFY_T(symmetric_LRW),
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162 #endif
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163 #ifdef LTC_F8_MODE
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164 _SZ_STRINGIFY_T(symmetric_F8),
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165 #endif
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166 #ifdef LTC_XTS_MODE
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167 _SZ_STRINGIFY_T(symmetric_xts),
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168 #endif
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169
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170 /* stream cipher sizes */
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171 #ifdef LTC_CHACHA
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172 _SZ_STRINGIFY_T(chacha_state),
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173 #endif
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174 #ifdef LTC_RC4_STREAM
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175 _SZ_STRINGIFY_T(rc4_state),
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176 #endif
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177 #ifdef LTC_SOBER128_STREAM
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178 _SZ_STRINGIFY_T(sober128_state),
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179 #endif
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180
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181 /* MAC sizes -- no states for ccm, lrw */
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182 #ifdef LTC_HMAC
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183 _SZ_STRINGIFY_T(hmac_state),
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184 #endif
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185 #ifdef LTC_OMAC
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186 _SZ_STRINGIFY_T(omac_state),
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187 #endif
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188 #ifdef LTC_PMAC
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189 _SZ_STRINGIFY_T(pmac_state),
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190 #endif
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191 #ifdef LTC_POLY1305
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192 _SZ_STRINGIFY_T(poly1305_state),
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193 #endif
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194 #ifdef LTC_EAX_MODE
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195 _SZ_STRINGIFY_T(eax_state),
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196 #endif
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197 #ifdef LTC_OCB_MODE
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198 _SZ_STRINGIFY_T(ocb_state),
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199 #endif
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200 #ifdef LTC_OCB3_MODE
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201 _SZ_STRINGIFY_T(ocb3_state),
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202 #endif
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203 #ifdef LTC_CCM_MODE
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204 _SZ_STRINGIFY_T(ccm_state),
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205 #endif
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206 #ifdef LTC_GCM_MODE
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207 _SZ_STRINGIFY_T(gcm_state),
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208 #endif
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209 #ifdef LTC_PELICAN
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210 _SZ_STRINGIFY_T(pelican_state),
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211 #endif
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212 #ifdef LTC_XCBC
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213 _SZ_STRINGIFY_T(xcbc_state),
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214 #endif
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215 #ifdef LTC_F9_MODE
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216 _SZ_STRINGIFY_T(f9_state),
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217 #endif
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218 #ifdef LTC_CHACHA20POLY1305_MODE
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219 _SZ_STRINGIFY_T(chacha20poly1305_state),
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220 #endif
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221
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222 /* asymmetric keys */
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223 #ifdef LTC_MRSA
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224 _SZ_STRINGIFY_T(rsa_key),
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225 #endif
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226 #ifdef LTC_MDSA
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227 _SZ_STRINGIFY_T(dsa_key),
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228 #endif
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229 #ifdef LTC_MDH
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230 _SZ_STRINGIFY_T(dh_key),
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231 #endif
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232 #ifdef LTC_MECC
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233 _SZ_STRINGIFY_T(ltc_ecc_set_type),
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234 _SZ_STRINGIFY_T(ecc_point),
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235 _SZ_STRINGIFY_T(ecc_key),
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236 #endif
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237 #ifdef LTC_MKAT
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238 _SZ_STRINGIFY_T(katja_key),
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239 #endif
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240
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241 /* DER handling */
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242 #ifdef LTC_DER
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243 _SZ_STRINGIFY_T(ltc_asn1_list), /* a list entry */
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244 _SZ_STRINGIFY_T(ltc_utctime),
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245 _SZ_STRINGIFY_T(ltc_generalizedtime),
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246 #endif
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247
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248 /* prng state sizes */
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249 _SZ_STRINGIFY_S(ltc_prng_descriptor),
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250 _SZ_STRINGIFY_T(prng_state),
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251 #ifdef LTC_FORTUNA
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252 _SZ_STRINGIFY_S(fortuna_prng),
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253 #endif
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254 #ifdef LTC_CHACHA20_PRNG
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255 _SZ_STRINGIFY_S(chacha20_prng),
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256 #endif
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257 #ifdef LTC_RC4
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258 _SZ_STRINGIFY_S(rc4_prng),
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259 #endif
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260 #ifdef LTC_SOBER128
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261 _SZ_STRINGIFY_S(sober128_prng),
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262 #endif
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263 #ifdef LTC_YARROW
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264 _SZ_STRINGIFY_S(yarrow_prng),
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265 #endif
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266 /* sprng has no state as it uses other potentially available sources */
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267 /* like /dev/random. See Developers Guide for more info. */
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268
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269 #ifdef LTC_ADLER32
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270 _SZ_STRINGIFY_T(adler32_state),
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271 #endif
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272 #ifdef LTC_CRC32
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273 _SZ_STRINGIFY_T(crc32_state),
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274 #endif
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275
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276 _SZ_STRINGIFY_T(ltc_mp_digit),
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277 _SZ_STRINGIFY_T(ltc_math_descriptor)
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278
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279 };
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280
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281 /* crypt_get_size()
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282 * sizeout will be the size (bytes) of the named struct or union
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283 * return -1 if named item not found
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284 */
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285 int crypt_get_size(const char* namein, unsigned int *sizeout) {
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286 int i;
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287 int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
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288 for (i=0; i<count; i++) {
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289 if (XSTRCMP(_crypt_sizes[i].name, namein) == 0) {
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290 *sizeout = _crypt_sizes[i].size;
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291 return 0;
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292 }
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293 }
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294 return -1;
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295 }
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296
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297 /* crypt_list_all_sizes()
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298 * if names_list is NULL, names_list_size will be the minimum
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299 * size needed to receive the complete names_list
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300 * if names_list is NOT NULL, names_list must be the addr with
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301 * sufficient memory allocated into which the names_list
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302 * is to be written. Also, the value in names_list_size
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303 * sets the upper bound of the number of characters to be
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304 * written.
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305 * a -1 return value signifies insufficient space made available
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306 */
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307 int crypt_list_all_sizes(char *names_list, unsigned int *names_list_size) {
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308 int i;
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309 unsigned int total_len = 0;
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310 char *ptr;
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311 int number_len;
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312 int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
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313
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314 /* calculate amount of memory required for the list */
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315 for (i=0; i<count; i++) {
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316 number_len = snprintf(NULL, 0, "%s,%u\n", _crypt_sizes[i].name, _crypt_sizes[i].size);
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317 if (number_len < 0)
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318 return -1;
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319 total_len += number_len;
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320 /* this last +1 is for newlines (and ending NULL) */
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321 }
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322
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323 if (names_list == NULL) {
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324 *names_list_size = total_len;
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325 } else {
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326 if (total_len > *names_list_size) {
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327 return -1;
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328 }
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329 /* build the names list */
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330 ptr = names_list;
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331 for (i=0; i<count; i++) {
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332 number_len = snprintf(ptr, total_len, "%s,%u\n", _crypt_sizes[i].name, _crypt_sizes[i].size);
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333 if (number_len < 0) return -1;
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334 if ((unsigned int)number_len > total_len) return -1;
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335 total_len -= number_len;
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336 ptr += number_len;
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337 }
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338 /* to remove the trailing new-line */
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339 ptr -= 1;
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340 *ptr = 0;
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341 }
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342 return 0;
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343 }
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344
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345
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346 /* ref: $Format:%D$ */
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347 /* git commit: $Format:%H$ */
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348 /* commit time: $Format:%ai$ */