1 | /* wc_encrypt.c
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2 | *
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3 | * Copyright (C) 2006-2015 wolfSSL Inc.
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4 | *
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5 | * This file is part of wolfSSL. (formerly known as CyaSSL)
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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 02110-1301, USA
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20 | */
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21 |
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22 | #ifdef HAVE_CONFIG_H
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23 | #include <config.h>
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24 | #endif
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25 |
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26 | #include <wolfssl/wolfcrypt/settings.h>
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27 | #include <wolfssl/wolfcrypt/aes.h>
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28 | #include <wolfssl/wolfcrypt/des3.h>
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29 | #include <wolfssl/wolfcrypt/wc_encrypt.h>
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30 | #include <wolfssl/wolfcrypt/error-crypt.h>
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31 |
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32 |
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33 | #ifndef NO_AES
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34 | int wc_AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz,
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35 | const byte* key, word32 keySz, const byte* iv)
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36 | {
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37 | int ret = 0;
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38 | #ifdef WOLFSSL_SMALL_STACK
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39 | Aes* aes = NULL;
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40 | #else
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41 | Aes aes[1];
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42 | #endif
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43 |
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44 | #ifdef WOLFSSL_SMALL_STACK
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45 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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46 | if (aes == NULL)
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47 | return MEMORY_E;
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48 | #endif
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49 |
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50 | ret = wc_AesSetKey(aes, key, keySz, iv, AES_DECRYPTION);
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51 | if (ret == 0)
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52 | ret = wc_AesCbcDecrypt(aes, out, in, inSz);
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53 |
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54 | #ifdef WOLFSSL_SMALL_STACK
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55 | XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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56 | #endif
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57 |
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58 | return ret;
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59 | }
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60 |
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61 | int wc_AesCbcEncryptWithKey(byte* out, const byte* in, word32 inSz,
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62 | const byte* key, word32 keySz, const byte* iv)
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63 | {
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64 | int ret = 0;
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65 | #ifdef WOLFSSL_SMALL_STACK
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66 | Aes* aes = NULL;
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67 | #else
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68 | Aes aes[1];
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69 | #endif
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70 |
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71 | #ifdef WOLFSSL_SMALL_STACK
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72 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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73 | if (aes == NULL)
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74 | return MEMORY_E;
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75 | #endif
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76 |
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77 | ret = wc_AesSetKey(aes, key, keySz, iv, AES_ENCRYPTION);
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78 | if (ret == 0)
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79 | ret = wc_AesCbcEncrypt(aes, out, in, inSz);
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80 |
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81 | #ifdef WOLFSSL_SMALL_STACK
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82 | XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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83 | #endif
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84 |
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85 | return ret;
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86 | }
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87 | #endif /* !NO_AES */
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88 |
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89 |
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90 | #ifndef NO_DES3
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91 | int wc_Des_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
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92 | const byte* key, const byte* iv)
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93 | {
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94 | int ret = 0;
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95 | #ifdef WOLFSSL_SMALL_STACK
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96 | Des* des = NULL;
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97 | #else
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98 | Des des[1];
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99 | #endif
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100 |
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101 | #ifdef WOLFSSL_SMALL_STACK
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102 | des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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103 | if (des == NULL)
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104 | return MEMORY_E;
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105 | #endif
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106 |
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107 | ret = wc_Des_SetKey(des, key, iv, DES_ENCRYPTION);
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108 | if (ret == 0)
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109 | ret = wc_Des_CbcEncrypt(des, out, in, sz);
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110 |
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111 | #ifdef WOLFSSL_SMALL_STACK
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112 | XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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113 | #endif
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114 |
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115 | return ret;
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116 | }
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117 |
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118 | int wc_Des_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
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119 | const byte* key, const byte* iv)
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120 | {
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121 | int ret = 0;
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122 | #ifdef WOLFSSL_SMALL_STACK
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123 | Des* des = NULL;
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124 | #else
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125 | Des des[1];
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126 | #endif
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127 |
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128 | #ifdef WOLFSSL_SMALL_STACK
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129 | des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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130 | if (des == NULL)
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131 | return MEMORY_E;
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132 | #endif
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133 |
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134 | ret = wc_Des_SetKey(des, key, iv, DES_DECRYPTION);
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135 | if (ret == 0)
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136 | ret = wc_Des_CbcDecrypt(des, out, in, sz);
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137 |
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138 | #ifdef WOLFSSL_SMALL_STACK
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139 | XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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140 | #endif
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141 |
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142 | return ret;
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143 | }
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144 |
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145 |
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146 | int wc_Des3_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
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147 | const byte* key, const byte* iv)
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148 | {
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149 | int ret = 0;
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150 | #ifdef WOLFSSL_SMALL_STACK
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151 | Des3* des3 = NULL;
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152 | #else
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153 | Des3 des3[1];
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154 | #endif
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155 |
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156 | #ifdef WOLFSSL_SMALL_STACK
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157 | des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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158 | if (des3 == NULL)
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159 | return MEMORY_E;
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160 | #endif
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161 |
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162 | ret = wc_Des3_SetKey(des3, key, iv, DES_ENCRYPTION);
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163 | if (ret == 0)
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164 | ret = wc_Des3_CbcEncrypt(des3, out, in, sz);
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165 |
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166 | #ifdef WOLFSSL_SMALL_STACK
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167 | XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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168 | #endif
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169 |
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170 | return ret;
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171 | }
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172 |
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173 |
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174 | int wc_Des3_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
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175 | const byte* key, const byte* iv)
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176 | {
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177 | int ret = 0;
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178 | #ifdef WOLFSSL_SMALL_STACK
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179 | Des3* des3 = NULL;
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180 | #else
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181 | Des3 des3[1];
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182 | #endif
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183 |
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184 | #ifdef WOLFSSL_SMALL_STACK
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185 | des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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186 | if (des3 == NULL)
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187 | return MEMORY_E;
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188 | #endif
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189 |
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190 | ret = wc_Des3_SetKey(des3, key, iv, DES_DECRYPTION);
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191 | if (ret == 0)
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192 | ret = wc_Des3_CbcDecrypt(des3, out, in, sz);
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193 |
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194 | #ifdef WOLFSSL_SMALL_STACK
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195 | XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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196 | #endif
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197 |
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198 | return ret;
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199 | }
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200 |
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201 | #endif /* !NO_DES3 */
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