1 | /* hmac.h
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2 | *
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3 | * Copyright (C) 2006-2017 wolfSSL Inc.
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4 | *
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5 | * This file is part of wolfSSL.
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6 | *
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7 | * wolfSSL is free software; you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation; either version 2 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * wolfSSL is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with this program; if not, write to the Free Software
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19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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20 | */
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21 |
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22 |
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23 | #ifdef HAVE_CONFIG_H
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24 | #include <config.h>
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25 | #endif
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26 |
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27 | #include <wolfssl/wolfcrypt/settings.h>
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28 | #include <wolfssl/wolfcrypt/error-crypt.h>
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29 |
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30 | #ifndef NO_HMAC
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31 |
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32 | #include <wolfssl/wolfcrypt/hmac.h>
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33 |
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34 | #ifdef NO_INLINE
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35 | #include <wolfssl/wolfcrypt/misc.h>
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36 | #else
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37 | #define WOLFSSL_MISC_INCLUDED
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38 | #include <wolfcrypt/src/misc.c>
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39 | #endif
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40 |
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41 |
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42 | /* fips wrapper calls, user can call direct */
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43 | #ifdef HAVE_FIPS
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44 | /* does init */
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45 | int wc_HmacSetKey(Hmac* hmac, int type, const byte* key, word32 keySz)
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46 | {
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47 | if (hmac == NULL || (key == NULL && keySz != 0) ||
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48 | !(type == WC_MD5 || type == WC_SHA || type == WC_SHA256 ||
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49 | type == WC_SHA384 || type == WC_SHA512 || type == BLAKE2B_ID)) {
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50 | return BAD_FUNC_ARG;
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51 | }
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52 |
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53 | return HmacSetKey_fips(hmac, type, key, keySz);
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54 | }
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55 | int wc_HmacUpdate(Hmac* hmac, const byte* in, word32 sz)
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56 | {
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57 | if (hmac == NULL || (in == NULL && sz > 0)) {
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58 | return BAD_FUNC_ARG;
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59 | }
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60 |
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61 | return HmacUpdate_fips(hmac, in, sz);
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62 | }
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63 | int wc_HmacFinal(Hmac* hmac, byte* out)
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64 | {
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65 | if (hmac == NULL) {
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66 | return BAD_FUNC_ARG;
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67 | }
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68 |
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69 | return HmacFinal_fips(hmac, out);
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70 | }
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71 | int wolfSSL_GetHmacMaxSize(void)
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72 | {
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73 | return CyaSSL_GetHmacMaxSize();
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74 | }
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75 |
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76 | int wc_HmacInit(Hmac* hmac, void* heap, int devId)
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77 | {
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78 | (void)hmac;
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79 | (void)heap;
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80 | (void)devId;
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81 | /* FIPS doesn't support:
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82 | return HmacInit(hmac, heap, devId); */
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83 | return 0;
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84 | }
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85 | void wc_HmacFree(Hmac* hmac)
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86 | {
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87 | (void)hmac;
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88 | /* FIPS doesn't support:
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89 | HmacFree(hmac); */
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90 | }
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91 |
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92 | #ifdef HAVE_HKDF
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93 | int wc_HKDF(int type, const byte* inKey, word32 inKeySz,
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94 | const byte* salt, word32 saltSz,
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95 | const byte* info, word32 infoSz,
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96 | byte* out, word32 outSz)
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97 | {
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98 | return HKDF(type, inKey, inKeySz, salt, saltSz,
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99 | info, infoSz, out, outSz);
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100 | }
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101 | #endif /* HAVE_HKDF */
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102 |
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103 | #else /* else build without fips */
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104 |
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105 |
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106 | #include <wolfssl/wolfcrypt/error-crypt.h>
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107 |
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108 |
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109 | int wc_HmacSizeByType(int type)
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110 | {
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111 | int ret;
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112 |
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113 | if (!(type == WC_MD5 || type == WC_SHA || type == WC_SHA224 ||
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114 | type == WC_SHA256 || type == WC_SHA384 || type == WC_SHA512 ||
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115 | type == BLAKE2B_ID)) {
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116 | return BAD_FUNC_ARG;
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117 | }
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118 |
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119 | switch (type) {
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120 | #ifndef NO_MD5
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121 | case WC_MD5:
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122 | ret = WC_MD5_DIGEST_SIZE;
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123 | break;
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124 | #endif /* !NO_MD5 */
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125 |
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126 | #ifndef NO_SHA
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127 | case WC_SHA:
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128 | ret = WC_SHA_DIGEST_SIZE;
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129 | break;
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130 | #endif /* !NO_SHA */
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131 |
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132 | #ifdef WOLFSSL_SHA224
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133 | case WC_SHA224:
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134 | ret = WC_SHA224_DIGEST_SIZE;
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135 | break;
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136 | #endif /* WOLFSSL_SHA224 */
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137 |
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138 | #ifndef NO_SHA256
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139 | case WC_SHA256:
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140 | ret = WC_SHA256_DIGEST_SIZE;
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141 | break;
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142 | #endif /* !NO_SHA256 */
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143 |
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144 | #ifdef WOLFSSL_SHA512
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145 | #ifdef WOLFSSL_SHA384
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146 | case WC_SHA384:
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147 | ret = WC_SHA384_DIGEST_SIZE;
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148 | break;
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149 | #endif /* WOLFSSL_SHA384 */
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150 | case WC_SHA512:
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151 | ret = WC_SHA512_DIGEST_SIZE;
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152 | break;
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153 | #endif /* WOLFSSL_SHA512 */
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154 |
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155 | #ifdef HAVE_BLAKE2
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156 | case BLAKE2B_ID:
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157 | ret = BLAKE2B_OUTBYTES;
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158 | break;
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159 | #endif /* HAVE_BLAKE2 */
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160 |
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161 | default:
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162 | ret = BAD_FUNC_ARG;
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163 | break;
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164 | }
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165 |
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166 | return ret;
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167 | }
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168 |
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169 | static int _InitHmac(Hmac* hmac, int type, void* heap)
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170 | {
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171 | int ret = 0;
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172 |
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173 | switch (type) {
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174 | #ifndef NO_MD5
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175 | case WC_MD5:
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176 | ret = wc_InitMd5(&hmac->hash.md5);
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177 | break;
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178 | #endif /* !NO_MD5 */
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179 |
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180 | #ifndef NO_SHA
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181 | case WC_SHA:
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182 | ret = wc_InitSha(&hmac->hash.sha);
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183 | break;
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184 | #endif /* !NO_SHA */
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185 |
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186 | #ifdef WOLFSSL_SHA224
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187 | case WC_SHA224:
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188 | ret = wc_InitSha224(&hmac->hash.sha224);
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189 | break;
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190 | #endif /* WOLFSSL_SHA224 */
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191 |
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192 | #ifndef NO_SHA256
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193 | case WC_SHA256:
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194 | ret = wc_InitSha256(&hmac->hash.sha256);
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195 | break;
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196 | #endif /* !NO_SHA256 */
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197 |
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198 | #ifdef WOLFSSL_SHA512
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199 | #ifdef WOLFSSL_SHA384
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200 | case WC_SHA384:
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201 | ret = wc_InitSha384(&hmac->hash.sha384);
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202 | break;
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203 | #endif /* WOLFSSL_SHA384 */
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204 | case WC_SHA512:
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205 | ret = wc_InitSha512(&hmac->hash.sha512);
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206 | break;
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207 | #endif /* WOLFSSL_SHA512 */
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208 |
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209 | #ifdef HAVE_BLAKE2
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210 | case BLAKE2B_ID:
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211 | ret = wc_InitBlake2b(&hmac->hash.blake2b, BLAKE2B_256);
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212 | break;
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213 | #endif /* HAVE_BLAKE2 */
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214 |
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215 | default:
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216 | ret = BAD_FUNC_ARG;
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217 | break;
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218 | }
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219 |
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220 | /* default to NULL heap hint or test value */
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221 | #ifdef WOLFSSL_HEAP_TEST
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222 | hmac->heap = (void)WOLFSSL_HEAP_TEST;
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223 | #else
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224 | hmac->heap = heap;
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225 | #endif /* WOLFSSL_HEAP_TEST */
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226 |
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227 | return ret;
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228 | }
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229 |
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230 |
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231 | int wc_HmacSetKey(Hmac* hmac, int type, const byte* key, word32 length)
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232 | {
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233 | byte* ip;
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234 | byte* op;
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235 | word32 i, hmac_block_size = 0;
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236 | int ret = 0;
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237 | void* heap = NULL;
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238 |
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239 | if (hmac == NULL || (key == NULL && length != 0) ||
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240 | !(type == WC_MD5 || type == WC_SHA || type == WC_SHA224 ||
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241 | type == WC_SHA256 || type == WC_SHA384 || type == WC_SHA512 ||
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242 | type == BLAKE2B_ID)) {
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243 | return BAD_FUNC_ARG;
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244 | }
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245 |
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246 | hmac->innerHashKeyed = 0;
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247 | hmac->macType = (byte)type;
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248 |
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249 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_HMAC)
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250 | if (hmac->asyncDev.marker == WOLFSSL_ASYNC_MARKER_HMAC) {
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251 | #if defined(HAVE_CAVIUM)
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252 | if (length > HMAC_BLOCK_SIZE) {
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253 | return WC_KEY_SIZE_E;
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254 | }
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255 |
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256 | if (key != NULL) {
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257 | XMEMCPY(hmac->ipad, key, length);
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258 | }
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259 | hmac->keyLen = (word16)length;
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260 |
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261 | return 0; /* nothing to do here */
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262 | #endif /* HAVE_CAVIUM */
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263 | }
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264 | #endif /* WOLFSSL_ASYNC_CRYPT */
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265 |
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266 | ret = _InitHmac(hmac, type, heap);
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267 | if (ret != 0)
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268 | return ret;
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269 |
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270 | #ifdef HAVE_FIPS
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271 | if (length < HMAC_FIPS_MIN_KEY)
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272 | return HMAC_MIN_KEYLEN_E;
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273 | #endif
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274 |
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275 | ip = (byte*)hmac->ipad;
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276 | op = (byte*)hmac->opad;
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277 |
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278 | switch (hmac->macType) {
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279 | #ifndef NO_MD5
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280 | case WC_MD5:
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281 | hmac_block_size = WC_MD5_BLOCK_SIZE;
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282 | if (length <= WC_MD5_BLOCK_SIZE) {
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283 | if (key != NULL) {
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284 | XMEMCPY(ip, key, length);
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285 | }
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286 | }
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287 | else {
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288 | ret = wc_Md5Update(&hmac->hash.md5, key, length);
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289 | if (ret != 0)
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290 | break;
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291 | ret = wc_Md5Final(&hmac->hash.md5, ip);
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292 | if (ret != 0)
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293 | break;
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294 | length = WC_MD5_DIGEST_SIZE;
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295 | }
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296 | break;
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297 | #endif /* !NO_MD5 */
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298 |
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299 | #ifndef NO_SHA
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300 | case WC_SHA:
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301 | hmac_block_size = WC_SHA_BLOCK_SIZE;
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302 | if (length <= WC_SHA_BLOCK_SIZE) {
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303 | if (key != NULL) {
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304 | XMEMCPY(ip, key, length);
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305 | }
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306 | }
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307 | else {
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308 | ret = wc_ShaUpdate(&hmac->hash.sha, key, length);
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309 | if (ret != 0)
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310 | break;
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311 | ret = wc_ShaFinal(&hmac->hash.sha, ip);
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312 | if (ret != 0)
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313 | break;
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314 |
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315 | length = WC_SHA_DIGEST_SIZE;
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316 | }
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317 | break;
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318 | #endif /* !NO_SHA */
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319 |
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320 | #ifdef WOLFSSL_SHA224
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321 | case WC_SHA224:
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322 | {
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323 | hmac_block_size = WC_SHA224_BLOCK_SIZE;
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324 | if (length <= WC_SHA224_BLOCK_SIZE) {
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325 | if (key != NULL) {
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326 | XMEMCPY(ip, key, length);
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327 | }
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328 | }
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329 | else {
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330 | ret = wc_Sha224Update(&hmac->hash.sha224, key, length);
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331 | if (ret != 0)
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332 | break;
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333 | ret = wc_Sha224Final(&hmac->hash.sha224, ip);
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334 | if (ret != 0)
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335 | break;
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336 |
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337 | length = WC_SHA224_DIGEST_SIZE;
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338 | }
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339 | }
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340 | break;
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341 | #endif /* WOLFSSL_SHA224 */
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342 |
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343 | #ifndef NO_SHA256
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344 | case WC_SHA256:
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345 | hmac_block_size = WC_SHA256_BLOCK_SIZE;
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346 | if (length <= WC_SHA256_BLOCK_SIZE) {
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347 | if (key != NULL) {
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348 | XMEMCPY(ip, key, length);
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349 | }
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350 | }
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351 | else {
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352 | ret = wc_Sha256Update(&hmac->hash.sha256, key, length);
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353 | if (ret != 0)
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354 | break;
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355 | ret = wc_Sha256Final(&hmac->hash.sha256, ip);
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356 | if (ret != 0)
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357 | break;
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358 |
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359 | length = WC_SHA256_DIGEST_SIZE;
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360 | }
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361 | break;
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362 | #endif /* !NO_SHA256 */
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363 |
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364 | #ifdef WOLFSSL_SHA512
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365 | #ifdef WOLFSSL_SHA384
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366 | case WC_SHA384:
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367 | hmac_block_size = WC_SHA384_BLOCK_SIZE;
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368 | if (length <= WC_SHA384_BLOCK_SIZE) {
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369 | if (key != NULL) {
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370 | XMEMCPY(ip, key, length);
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371 | }
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372 | }
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373 | else {
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374 | ret = wc_Sha384Update(&hmac->hash.sha384, key, length);
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375 | if (ret != 0)
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376 | break;
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377 | ret = wc_Sha384Final(&hmac->hash.sha384, ip);
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378 | if (ret != 0)
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379 | break;
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380 |
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381 | length = WC_SHA384_DIGEST_SIZE;
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382 | }
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383 | break;
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384 | #endif /* WOLFSSL_SHA384 */
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385 | case WC_SHA512:
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386 | hmac_block_size = WC_SHA512_BLOCK_SIZE;
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387 | if (length <= WC_SHA512_BLOCK_SIZE) {
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388 | if (key != NULL) {
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389 | XMEMCPY(ip, key, length);
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390 | }
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391 | }
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392 | else {
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393 | ret = wc_Sha512Update(&hmac->hash.sha512, key, length);
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394 | if (ret != 0)
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395 | break;
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396 | ret = wc_Sha512Final(&hmac->hash.sha512, ip);
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397 | if (ret != 0)
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398 | break;
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399 |
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400 | length = WC_SHA512_DIGEST_SIZE;
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401 | }
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402 | break;
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403 | #endif /* WOLFSSL_SHA512 */
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404 |
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405 | #ifdef HAVE_BLAKE2
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406 | case BLAKE2B_ID:
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407 | hmac_block_size = BLAKE2B_BLOCKBYTES;
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408 | if (length <= BLAKE2B_BLOCKBYTES) {
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409 | if (key != NULL) {
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410 | XMEMCPY(ip, key, length);
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411 | }
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412 | }
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413 | else {
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414 | ret = wc_Blake2bUpdate(&hmac->hash.blake2b, key, length);
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415 | if (ret != 0)
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416 | break;
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417 | ret = wc_Blake2bFinal(&hmac->hash.blake2b, ip, BLAKE2B_256);
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418 | if (ret != 0)
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419 | break;
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420 |
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421 | length = BLAKE2B_256;
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422 | }
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423 | break;
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424 | #endif /* HAVE_BLAKE2 */
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425 |
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426 | default:
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427 | return BAD_FUNC_ARG;
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428 | }
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429 |
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430 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_HMAC)
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431 | if (hmac->asyncDev.marker == WOLFSSL_ASYNC_MARKER_HMAC) {
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432 | #if defined(HAVE_INTEL_QA)
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433 | if (length > hmac_block_size)
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434 | length = hmac_block_size;
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435 | /* update key length */
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436 | hmac->keyLen = (word16)length;
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437 |
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438 | return ret;
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439 | /* no need to pad below */
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440 | #endif
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441 | }
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442 | #endif
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443 |
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444 | if (ret == 0) {
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445 | if (length < hmac_block_size)
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446 | XMEMSET(ip + length, 0, hmac_block_size - length);
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447 |
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448 | for(i = 0; i < hmac_block_size; i++) {
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449 | op[i] = ip[i] ^ OPAD;
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450 | ip[i] ^= IPAD;
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451 | }
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452 | }
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453 |
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454 | return ret;
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455 | }
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456 |
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457 |
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458 | static int HmacKeyInnerHash(Hmac* hmac)
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459 | {
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460 | int ret = 0;
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461 |
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462 | switch (hmac->macType) {
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463 | #ifndef NO_MD5
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464 | case WC_MD5:
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465 | ret = wc_Md5Update(&hmac->hash.md5, (byte*)hmac->ipad,
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466 | WC_MD5_BLOCK_SIZE);
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467 | break;
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468 | #endif /* !NO_MD5 */
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469 |
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470 | #ifndef NO_SHA
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471 | case WC_SHA:
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472 | ret = wc_ShaUpdate(&hmac->hash.sha, (byte*)hmac->ipad,
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473 | WC_SHA_BLOCK_SIZE);
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474 | break;
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475 | #endif /* !NO_SHA */
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476 |
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477 | #ifdef WOLFSSL_SHA224
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478 | case WC_SHA224:
|
---|
479 | ret = wc_Sha224Update(&hmac->hash.sha224, (byte*)hmac->ipad,
|
---|
480 | WC_SHA224_BLOCK_SIZE);
|
---|
481 | break;
|
---|
482 | #endif /* WOLFSSL_SHA224 */
|
---|
483 |
|
---|
484 | #ifndef NO_SHA256
|
---|
485 | case WC_SHA256:
|
---|
486 | ret = wc_Sha256Update(&hmac->hash.sha256, (byte*)hmac->ipad,
|
---|
487 | WC_SHA256_BLOCK_SIZE);
|
---|
488 | break;
|
---|
489 | #endif /* !NO_SHA256 */
|
---|
490 |
|
---|
491 | #ifdef WOLFSSL_SHA512
|
---|
492 | #ifdef WOLFSSL_SHA384
|
---|
493 | case WC_SHA384:
|
---|
494 | ret = wc_Sha384Update(&hmac->hash.sha384, (byte*)hmac->ipad,
|
---|
495 | WC_SHA384_BLOCK_SIZE);
|
---|
496 | break;
|
---|
497 | #endif /* WOLFSSL_SHA384 */
|
---|
498 | case WC_SHA512:
|
---|
499 | ret = wc_Sha512Update(&hmac->hash.sha512, (byte*)hmac->ipad,
|
---|
500 | WC_SHA512_BLOCK_SIZE);
|
---|
501 | break;
|
---|
502 | #endif /* WOLFSSL_SHA512 */
|
---|
503 |
|
---|
504 | #ifdef HAVE_BLAKE2
|
---|
505 | case BLAKE2B_ID:
|
---|
506 | ret = wc_Blake2bUpdate(&hmac->hash.blake2b, (byte*)hmac->ipad,
|
---|
507 | BLAKE2B_BLOCKBYTES);
|
---|
508 | break;
|
---|
509 | #endif /* HAVE_BLAKE2 */
|
---|
510 |
|
---|
511 | default:
|
---|
512 | break;
|
---|
513 | }
|
---|
514 |
|
---|
515 | if (ret == 0)
|
---|
516 | hmac->innerHashKeyed = 1;
|
---|
517 |
|
---|
518 | return ret;
|
---|
519 | }
|
---|
520 |
|
---|
521 |
|
---|
522 | int wc_HmacUpdate(Hmac* hmac, const byte* msg, word32 length)
|
---|
523 | {
|
---|
524 | int ret = 0;
|
---|
525 |
|
---|
526 | if (hmac == NULL || (msg == NULL && length > 0)) {
|
---|
527 | return BAD_FUNC_ARG;
|
---|
528 | }
|
---|
529 |
|
---|
530 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_HMAC)
|
---|
531 | if (hmac->asyncDev.marker == WOLFSSL_ASYNC_MARKER_HMAC) {
|
---|
532 | #if defined(HAVE_CAVIUM)
|
---|
533 | return NitroxHmacUpdate(hmac, msg, length);
|
---|
534 | #elif defined(HAVE_INTEL_QA)
|
---|
535 | return IntelQaHmac(&hmac->asyncDev, hmac->macType,
|
---|
536 | (byte*)hmac->ipad, hmac->keyLen, NULL, msg, length);
|
---|
537 | #endif
|
---|
538 | }
|
---|
539 | #endif /* WOLFSSL_ASYNC_CRYPT */
|
---|
540 |
|
---|
541 | if (!hmac->innerHashKeyed) {
|
---|
542 | ret = HmacKeyInnerHash(hmac);
|
---|
543 | if (ret != 0)
|
---|
544 | return ret;
|
---|
545 | }
|
---|
546 |
|
---|
547 | switch (hmac->macType) {
|
---|
548 | #ifndef NO_MD5
|
---|
549 | case WC_MD5:
|
---|
550 | ret = wc_Md5Update(&hmac->hash.md5, msg, length);
|
---|
551 | break;
|
---|
552 | #endif /* !NO_MD5 */
|
---|
553 |
|
---|
554 | #ifndef NO_SHA
|
---|
555 | case WC_SHA:
|
---|
556 | ret = wc_ShaUpdate(&hmac->hash.sha, msg, length);
|
---|
557 | break;
|
---|
558 | #endif /* !NO_SHA */
|
---|
559 |
|
---|
560 | #ifdef WOLFSSL_SHA224
|
---|
561 | case WC_SHA224:
|
---|
562 | ret = wc_Sha224Update(&hmac->hash.sha224, msg, length);
|
---|
563 | break;
|
---|
564 | #endif /* WOLFSSL_SHA224 */
|
---|
565 |
|
---|
566 | #ifndef NO_SHA256
|
---|
567 | case WC_SHA256:
|
---|
568 | ret = wc_Sha256Update(&hmac->hash.sha256, msg, length);
|
---|
569 | break;
|
---|
570 | #endif /* !NO_SHA256 */
|
---|
571 |
|
---|
572 | #ifdef WOLFSSL_SHA512
|
---|
573 | #ifdef WOLFSSL_SHA384
|
---|
574 | case WC_SHA384:
|
---|
575 | ret = wc_Sha384Update(&hmac->hash.sha384, msg, length);
|
---|
576 | break;
|
---|
577 | #endif /* WOLFSSL_SHA384 */
|
---|
578 | case WC_SHA512:
|
---|
579 | ret = wc_Sha512Update(&hmac->hash.sha512, msg, length);
|
---|
580 | break;
|
---|
581 | #endif /* WOLFSSL_SHA512 */
|
---|
582 |
|
---|
583 | #ifdef HAVE_BLAKE2
|
---|
584 | case BLAKE2B_ID:
|
---|
585 | ret = wc_Blake2bUpdate(&hmac->hash.blake2b, msg, length);
|
---|
586 | break;
|
---|
587 | #endif /* HAVE_BLAKE2 */
|
---|
588 |
|
---|
589 | default:
|
---|
590 | break;
|
---|
591 | }
|
---|
592 |
|
---|
593 | return ret;
|
---|
594 | }
|
---|
595 |
|
---|
596 |
|
---|
597 | int wc_HmacFinal(Hmac* hmac, byte* hash)
|
---|
598 | {
|
---|
599 | int ret;
|
---|
600 |
|
---|
601 | if (hmac == NULL || hash == NULL) {
|
---|
602 | return BAD_FUNC_ARG;
|
---|
603 | }
|
---|
604 |
|
---|
605 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_HMAC)
|
---|
606 | if (hmac->asyncDev.marker == WOLFSSL_ASYNC_MARKER_HMAC) {
|
---|
607 | int hashLen = wc_HmacSizeByType(hmac->macType);
|
---|
608 | if (hashLen <= 0)
|
---|
609 | return hashLen;
|
---|
610 |
|
---|
611 | #if defined(HAVE_CAVIUM)
|
---|
612 | return NitroxHmacFinal(hmac, hmac->macType, hash, hashLen);
|
---|
613 | #elif defined(HAVE_INTEL_QA)
|
---|
614 | return IntelQaHmac(&hmac->asyncDev, hmac->macType,
|
---|
615 | (byte*)hmac->ipad, hmac->keyLen, hash, NULL, hashLen);
|
---|
616 | #endif
|
---|
617 | }
|
---|
618 | #endif /* WOLFSSL_ASYNC_CRYPT */
|
---|
619 |
|
---|
620 | if (!hmac->innerHashKeyed) {
|
---|
621 | ret = HmacKeyInnerHash(hmac);
|
---|
622 | if (ret != 0)
|
---|
623 | return ret;
|
---|
624 | }
|
---|
625 |
|
---|
626 | switch (hmac->macType) {
|
---|
627 | #ifndef NO_MD5
|
---|
628 | case WC_MD5:
|
---|
629 | ret = wc_Md5Final(&hmac->hash.md5, (byte*)hmac->innerHash);
|
---|
630 | if (ret != 0)
|
---|
631 | break;
|
---|
632 | ret = wc_Md5Update(&hmac->hash.md5, (byte*)hmac->opad,
|
---|
633 | WC_MD5_BLOCK_SIZE);
|
---|
634 | if (ret != 0)
|
---|
635 | break;
|
---|
636 | ret = wc_Md5Update(&hmac->hash.md5, (byte*)hmac->innerHash,
|
---|
637 | WC_MD5_DIGEST_SIZE);
|
---|
638 | if (ret != 0)
|
---|
639 | break;
|
---|
640 | ret = wc_Md5Final(&hmac->hash.md5, hash);
|
---|
641 | break;
|
---|
642 | #endif /* !NO_MD5 */
|
---|
643 |
|
---|
644 | #ifndef NO_SHA
|
---|
645 | case WC_SHA:
|
---|
646 | ret = wc_ShaFinal(&hmac->hash.sha, (byte*)hmac->innerHash);
|
---|
647 | if (ret != 0)
|
---|
648 | break;
|
---|
649 | ret = wc_ShaUpdate(&hmac->hash.sha, (byte*)hmac->opad,
|
---|
650 | WC_SHA_BLOCK_SIZE);
|
---|
651 | if (ret != 0)
|
---|
652 | break;
|
---|
653 | ret = wc_ShaUpdate(&hmac->hash.sha, (byte*)hmac->innerHash,
|
---|
654 | WC_SHA_DIGEST_SIZE);
|
---|
655 | if (ret != 0)
|
---|
656 | break;
|
---|
657 | ret = wc_ShaFinal(&hmac->hash.sha, hash);
|
---|
658 | break;
|
---|
659 | #endif /* !NO_SHA */
|
---|
660 |
|
---|
661 | #ifdef WOLFSSL_SHA224
|
---|
662 | case WC_SHA224:
|
---|
663 | {
|
---|
664 | ret = wc_Sha224Final(&hmac->hash.sha224, (byte*)hmac->innerHash);
|
---|
665 | if (ret != 0)
|
---|
666 | break;
|
---|
667 | ret = wc_Sha224Update(&hmac->hash.sha224, (byte*)hmac->opad,
|
---|
668 | WC_SHA224_BLOCK_SIZE);
|
---|
669 | if (ret != 0)
|
---|
670 | break;
|
---|
671 | ret = wc_Sha224Update(&hmac->hash.sha224, (byte*)hmac->innerHash,
|
---|
672 | WC_SHA224_DIGEST_SIZE);
|
---|
673 | if (ret != 0)
|
---|
674 | break;
|
---|
675 | ret = wc_Sha224Final(&hmac->hash.sha224, hash);
|
---|
676 | if (ret != 0)
|
---|
677 | break;
|
---|
678 | }
|
---|
679 | break;
|
---|
680 | #endif /* WOLFSSL_SHA224 */
|
---|
681 |
|
---|
682 | #ifndef NO_SHA256
|
---|
683 | case WC_SHA256:
|
---|
684 | ret = wc_Sha256Final(&hmac->hash.sha256, (byte*)hmac->innerHash);
|
---|
685 | if (ret != 0)
|
---|
686 | break;
|
---|
687 | ret = wc_Sha256Update(&hmac->hash.sha256, (byte*)hmac->opad,
|
---|
688 | WC_SHA256_BLOCK_SIZE);
|
---|
689 | if (ret != 0)
|
---|
690 | break;
|
---|
691 | ret = wc_Sha256Update(&hmac->hash.sha256, (byte*)hmac->innerHash,
|
---|
692 | WC_SHA256_DIGEST_SIZE);
|
---|
693 | if (ret != 0)
|
---|
694 | break;
|
---|
695 | ret = wc_Sha256Final(&hmac->hash.sha256, hash);
|
---|
696 | break;
|
---|
697 | #endif /* !NO_SHA256 */
|
---|
698 |
|
---|
699 | #ifdef WOLFSSL_SHA512
|
---|
700 | #ifdef WOLFSSL_SHA384
|
---|
701 | case WC_SHA384:
|
---|
702 | ret = wc_Sha384Final(&hmac->hash.sha384, (byte*)hmac->innerHash);
|
---|
703 | if (ret != 0)
|
---|
704 | break;
|
---|
705 | ret = wc_Sha384Update(&hmac->hash.sha384, (byte*)hmac->opad,
|
---|
706 | WC_SHA384_BLOCK_SIZE);
|
---|
707 | if (ret != 0)
|
---|
708 | break;
|
---|
709 | ret = wc_Sha384Update(&hmac->hash.sha384, (byte*)hmac->innerHash,
|
---|
710 | WC_SHA384_DIGEST_SIZE);
|
---|
711 | if (ret != 0)
|
---|
712 | break;
|
---|
713 | ret = wc_Sha384Final(&hmac->hash.sha384, hash);
|
---|
714 | break;
|
---|
715 | #endif /* WOLFSSL_SHA384 */
|
---|
716 | case WC_SHA512:
|
---|
717 | ret = wc_Sha512Final(&hmac->hash.sha512, (byte*)hmac->innerHash);
|
---|
718 | if (ret != 0)
|
---|
719 | break;
|
---|
720 | ret = wc_Sha512Update(&hmac->hash.sha512, (byte*)hmac->opad,
|
---|
721 | WC_SHA512_BLOCK_SIZE);
|
---|
722 | if (ret != 0)
|
---|
723 | break;
|
---|
724 | ret = wc_Sha512Update(&hmac->hash.sha512, (byte*)hmac->innerHash,
|
---|
725 | WC_SHA512_DIGEST_SIZE);
|
---|
726 | if (ret != 0)
|
---|
727 | break;
|
---|
728 | ret = wc_Sha512Final(&hmac->hash.sha512, hash);
|
---|
729 | break;
|
---|
730 | #endif /* WOLFSSL_SHA512 */
|
---|
731 |
|
---|
732 | #ifdef HAVE_BLAKE2
|
---|
733 | case BLAKE2B_ID:
|
---|
734 | ret = wc_Blake2bFinal(&hmac->hash.blake2b, (byte*)hmac->innerHash,
|
---|
735 | BLAKE2B_256);
|
---|
736 | if (ret != 0)
|
---|
737 | break;
|
---|
738 | ret = wc_Blake2bUpdate(&hmac->hash.blake2b, (byte*)hmac->opad,
|
---|
739 | BLAKE2B_BLOCKBYTES);
|
---|
740 | if (ret != 0)
|
---|
741 | break;
|
---|
742 | ret = wc_Blake2bUpdate(&hmac->hash.blake2b, (byte*)hmac->innerHash,
|
---|
743 | BLAKE2B_256);
|
---|
744 | if (ret != 0)
|
---|
745 | break;
|
---|
746 | ret = wc_Blake2bFinal(&hmac->hash.blake2b, hash, BLAKE2B_256);
|
---|
747 | break;
|
---|
748 | #endif /* HAVE_BLAKE2 */
|
---|
749 |
|
---|
750 | default:
|
---|
751 | ret = BAD_FUNC_ARG;
|
---|
752 | break;
|
---|
753 | }
|
---|
754 |
|
---|
755 | if (ret == 0) {
|
---|
756 | hmac->innerHashKeyed = 0;
|
---|
757 | }
|
---|
758 |
|
---|
759 | return ret;
|
---|
760 | }
|
---|
761 |
|
---|
762 |
|
---|
763 | /* Initialize Hmac for use with async device */
|
---|
764 | int wc_HmacInit(Hmac* hmac, void* heap, int devId)
|
---|
765 | {
|
---|
766 | int ret = 0;
|
---|
767 |
|
---|
768 | if (hmac == NULL)
|
---|
769 | return BAD_FUNC_ARG;
|
---|
770 |
|
---|
771 | XMEMSET(hmac, 0, sizeof(Hmac));
|
---|
772 | hmac->heap = heap;
|
---|
773 |
|
---|
774 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_HMAC)
|
---|
775 | hmac->keyLen = 0;
|
---|
776 | #ifdef HAVE_CAVIUM
|
---|
777 | hmac->dataLen = 0;
|
---|
778 | hmac->data = NULL; /* buffered input data */
|
---|
779 | #endif /* HAVE_CAVIUM */
|
---|
780 |
|
---|
781 | ret = wolfAsync_DevCtxInit(&hmac->asyncDev, WOLFSSL_ASYNC_MARKER_HMAC,
|
---|
782 | hmac->heap, devId);
|
---|
783 | #else
|
---|
784 | (void)devId;
|
---|
785 | #endif /* WOLFSSL_ASYNC_CRYPT */
|
---|
786 |
|
---|
787 | return ret;
|
---|
788 | }
|
---|
789 |
|
---|
790 | /* Free Hmac from use with async device */
|
---|
791 | void wc_HmacFree(Hmac* hmac)
|
---|
792 | {
|
---|
793 | if (hmac == NULL)
|
---|
794 | return;
|
---|
795 |
|
---|
796 | #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_HMAC)
|
---|
797 | wolfAsync_DevCtxFree(&hmac->asyncDev, WOLFSSL_ASYNC_MARKER_HMAC);
|
---|
798 |
|
---|
799 | #ifdef HAVE_CAVIUM
|
---|
800 | XFREE(hmac->data, hmac->heap, DYNAMIC_TYPE_HMAC);
|
---|
801 | hmac->data = NULL;
|
---|
802 | #endif /* HAVE_CAVIUM */
|
---|
803 | #endif /* WOLFSSL_ASYNC_CRYPT */
|
---|
804 | }
|
---|
805 |
|
---|
806 | int wolfSSL_GetHmacMaxSize(void)
|
---|
807 | {
|
---|
808 | return MAX_DIGEST_SIZE;
|
---|
809 | }
|
---|
810 |
|
---|
811 | #ifdef HAVE_HKDF
|
---|
812 | /* HMAC-KDF-Extract.
|
---|
813 | * RFC 5869 - HMAC-based Extract-and-Expand Key Derivation Function (HKDF).
|
---|
814 | *
|
---|
815 | * type The hash algorithm type.
|
---|
816 | * salt The optional salt value.
|
---|
817 | * saltSz The size of the salt.
|
---|
818 | * inKey The input keying material.
|
---|
819 | * inKeySz The size of the input keying material.
|
---|
820 | * out The pseudorandom key with the length that of the hash.
|
---|
821 | * returns 0 on success, otherwise failure.
|
---|
822 | */
|
---|
823 | int wc_HKDF_Extract(int type, const byte* salt, word32 saltSz,
|
---|
824 | const byte* inKey, word32 inKeySz, byte* out)
|
---|
825 | {
|
---|
826 | byte tmp[MAX_DIGEST_SIZE]; /* localSalt helper */
|
---|
827 | Hmac myHmac;
|
---|
828 | int ret;
|
---|
829 | const byte* localSalt; /* either points to user input or tmp */
|
---|
830 | int hashSz;
|
---|
831 |
|
---|
832 | ret = wc_HmacSizeByType(type);
|
---|
833 | if (ret < 0)
|
---|
834 | return ret;
|
---|
835 |
|
---|
836 | hashSz = ret;
|
---|
837 | localSalt = salt;
|
---|
838 | if (localSalt == NULL) {
|
---|
839 | XMEMSET(tmp, 0, hashSz);
|
---|
840 | localSalt = tmp;
|
---|
841 | saltSz = hashSz;
|
---|
842 | }
|
---|
843 |
|
---|
844 | ret = wc_HmacInit(&myHmac, NULL, INVALID_DEVID);
|
---|
845 | if (ret == 0) {
|
---|
846 | ret = wc_HmacSetKey(&myHmac, type, localSalt, saltSz);
|
---|
847 | if (ret == 0)
|
---|
848 | ret = wc_HmacUpdate(&myHmac, inKey, inKeySz);
|
---|
849 | if (ret == 0)
|
---|
850 | ret = wc_HmacFinal(&myHmac, out);
|
---|
851 | wc_HmacFree(&myHmac);
|
---|
852 | }
|
---|
853 |
|
---|
854 | return ret;
|
---|
855 | }
|
---|
856 |
|
---|
857 | /* HMAC-KDF-Expand.
|
---|
858 | * RFC 5869 - HMAC-based Extract-and-Expand Key Derivation Function (HKDF).
|
---|
859 | *
|
---|
860 | * type The hash algorithm type.
|
---|
861 | * inKey The input key.
|
---|
862 | * inKeySz The size of the input key.
|
---|
863 | * info The application specific information.
|
---|
864 | * infoSz The size of the application specific information.
|
---|
865 | * out The output keying material.
|
---|
866 | * returns 0 on success, otherwise failure.
|
---|
867 | */
|
---|
868 | int wc_HKDF_Expand(int type, const byte* inKey, word32 inKeySz,
|
---|
869 | const byte* info, word32 infoSz, byte* out, word32 outSz)
|
---|
870 | {
|
---|
871 | byte tmp[MAX_DIGEST_SIZE];
|
---|
872 | Hmac myHmac;
|
---|
873 | int ret = 0;
|
---|
874 | word32 outIdx = 0;
|
---|
875 | word32 hashSz = wc_HmacSizeByType(type);
|
---|
876 | byte n = 0x1;
|
---|
877 |
|
---|
878 | ret = wc_HmacInit(&myHmac, NULL, INVALID_DEVID);
|
---|
879 | if (ret != 0)
|
---|
880 | return ret;
|
---|
881 |
|
---|
882 | while (outIdx < outSz) {
|
---|
883 | int tmpSz = (n == 1) ? 0 : hashSz;
|
---|
884 | word32 left = outSz - outIdx;
|
---|
885 |
|
---|
886 | ret = wc_HmacSetKey(&myHmac, type, inKey, inKeySz);
|
---|
887 | if (ret != 0)
|
---|
888 | break;
|
---|
889 | ret = wc_HmacUpdate(&myHmac, tmp, tmpSz);
|
---|
890 | if (ret != 0)
|
---|
891 | break;
|
---|
892 | ret = wc_HmacUpdate(&myHmac, info, infoSz);
|
---|
893 | if (ret != 0)
|
---|
894 | break;
|
---|
895 | ret = wc_HmacUpdate(&myHmac, &n, 1);
|
---|
896 | if (ret != 0)
|
---|
897 | break;
|
---|
898 | ret = wc_HmacFinal(&myHmac, tmp);
|
---|
899 | if (ret != 0)
|
---|
900 | break;
|
---|
901 |
|
---|
902 | left = min(left, hashSz);
|
---|
903 | XMEMCPY(out+outIdx, tmp, left);
|
---|
904 |
|
---|
905 | outIdx += hashSz;
|
---|
906 | n++;
|
---|
907 | }
|
---|
908 |
|
---|
909 | wc_HmacFree(&myHmac);
|
---|
910 |
|
---|
911 | return ret;
|
---|
912 | }
|
---|
913 |
|
---|
914 | /* HMAC-KDF.
|
---|
915 | * RFC 5869 - HMAC-based Extract-and-Expand Key Derivation Function (HKDF).
|
---|
916 | *
|
---|
917 | * type The hash algorithm type.
|
---|
918 | * inKey The input keying material.
|
---|
919 | * inKeySz The size of the input keying material.
|
---|
920 | * salt The optional salt value.
|
---|
921 | * saltSz The size of the salt.
|
---|
922 | * info The application specific information.
|
---|
923 | * infoSz The size of the application specific information.
|
---|
924 | * out The output keying material.
|
---|
925 | * returns 0 on success, otherwise failure.
|
---|
926 | */
|
---|
927 | int wc_HKDF(int type, const byte* inKey, word32 inKeySz,
|
---|
928 | const byte* salt, word32 saltSz,
|
---|
929 | const byte* info, word32 infoSz,
|
---|
930 | byte* out, word32 outSz)
|
---|
931 | {
|
---|
932 | byte prk[MAX_DIGEST_SIZE];
|
---|
933 | int hashSz = wc_HmacSizeByType(type);
|
---|
934 | int ret;
|
---|
935 |
|
---|
936 | if (hashSz < 0)
|
---|
937 | return BAD_FUNC_ARG;
|
---|
938 |
|
---|
939 | ret = wc_HKDF_Extract(type, salt, saltSz, inKey, inKeySz, prk);
|
---|
940 | if (ret != 0)
|
---|
941 | return ret;
|
---|
942 |
|
---|
943 | return wc_HKDF_Expand(type, prk, hashSz, info, infoSz, out, outSz);
|
---|
944 | }
|
---|
945 |
|
---|
946 | #endif /* HAVE_HKDF */
|
---|
947 |
|
---|
948 | #endif /* HAVE_FIPS */
|
---|
949 | #endif /* NO_HMAC */
|
---|