wolf SSL / wolfSSL

wolfSSL SSL/TLS library, support up to TLS1.3

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wolfcrypt/src/wc_encrypt.c@11:cee25a834751, 2017-05-30 (annotated)

Committer:
wolfSSL
Date:
Tue May 30 01:44:10 2017 +0000
Revision:
11:cee25a834751
wolfSSL 3.11.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 11:cee25a834751 1 /* wc_encrypt.c
wolfSSL 11:cee25a834751 2 *
wolfSSL 11:cee25a834751 3 * Copyright (C) 2006-2016 wolfSSL Inc.
wolfSSL 11:cee25a834751 4 *
wolfSSL 11:cee25a834751 5 * This file is part of wolfSSL.
wolfSSL 11:cee25a834751 6 *
wolfSSL 11:cee25a834751 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 11:cee25a834751 8 * it under the terms of the GNU General Public License as published by
wolfSSL 11:cee25a834751 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 11:cee25a834751 10 * (at your option) any later version.
wolfSSL 11:cee25a834751 11 *
wolfSSL 11:cee25a834751 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 11:cee25a834751 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 11:cee25a834751 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 11:cee25a834751 15 * GNU General Public License for more details.
wolfSSL 11:cee25a834751 16 *
wolfSSL 11:cee25a834751 17 * You should have received a copy of the GNU General Public License
wolfSSL 11:cee25a834751 18 * along with this program; if not, write to the Free Software
wolfSSL 11:cee25a834751 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 11:cee25a834751 20 */
wolfSSL 11:cee25a834751 21
wolfSSL 11:cee25a834751 22
wolfSSL 11:cee25a834751 23 #ifdef HAVE_CONFIG_H
wolfSSL 11:cee25a834751 24 #include <config.h>
wolfSSL 11:cee25a834751 25 #endif
wolfSSL 11:cee25a834751 26
wolfSSL 11:cee25a834751 27 #include <wolfssl/wolfcrypt/settings.h>
wolfSSL 11:cee25a834751 28 #include <wolfssl/wolfcrypt/aes.h>
wolfSSL 11:cee25a834751 29 #include <wolfssl/wolfcrypt/des3.h>
wolfSSL 11:cee25a834751 30 #include <wolfssl/wolfcrypt/wc_encrypt.h>
wolfSSL 11:cee25a834751 31 #include <wolfssl/wolfcrypt/error-crypt.h>
wolfSSL 11:cee25a834751 32
wolfSSL 11:cee25a834751 33
wolfSSL 11:cee25a834751 34 #if !defined(NO_AES) && defined(HAVE_AES_CBC)
wolfSSL 11:cee25a834751 35 #ifdef HAVE_AES_DECRYPT
wolfSSL 11:cee25a834751 36 int wc_AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz,
wolfSSL 11:cee25a834751 37 const byte* key, word32 keySz, const byte* iv)
wolfSSL 11:cee25a834751 38 {
wolfSSL 11:cee25a834751 39 int ret = 0;
wolfSSL 11:cee25a834751 40 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 41 Aes* aes = NULL;
wolfSSL 11:cee25a834751 42 #else
wolfSSL 11:cee25a834751 43 Aes aes[1];
wolfSSL 11:cee25a834751 44 #endif
wolfSSL 11:cee25a834751 45
wolfSSL 11:cee25a834751 46 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 47 aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 48 if (aes == NULL)
wolfSSL 11:cee25a834751 49 return MEMORY_E;
wolfSSL 11:cee25a834751 50 #endif
wolfSSL 11:cee25a834751 51
wolfSSL 11:cee25a834751 52 ret = wc_AesSetKey(aes, key, keySz, iv, AES_DECRYPTION);
wolfSSL 11:cee25a834751 53 if (ret == 0)
wolfSSL 11:cee25a834751 54 ret = wc_AesCbcDecrypt(aes, out, in, inSz);
wolfSSL 11:cee25a834751 55
wolfSSL 11:cee25a834751 56 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 57 XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 58 #endif
wolfSSL 11:cee25a834751 59
wolfSSL 11:cee25a834751 60 return ret;
wolfSSL 11:cee25a834751 61 }
wolfSSL 11:cee25a834751 62 #endif /* HAVE_AES_DECRYPT */
wolfSSL 11:cee25a834751 63
wolfSSL 11:cee25a834751 64 int wc_AesCbcEncryptWithKey(byte* out, const byte* in, word32 inSz,
wolfSSL 11:cee25a834751 65 const byte* key, word32 keySz, const byte* iv)
wolfSSL 11:cee25a834751 66 {
wolfSSL 11:cee25a834751 67 int ret = 0;
wolfSSL 11:cee25a834751 68 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 69 Aes* aes = NULL;
wolfSSL 11:cee25a834751 70 #else
wolfSSL 11:cee25a834751 71 Aes aes[1];
wolfSSL 11:cee25a834751 72 #endif
wolfSSL 11:cee25a834751 73
wolfSSL 11:cee25a834751 74 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 75 aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 76 if (aes == NULL)
wolfSSL 11:cee25a834751 77 return MEMORY_E;
wolfSSL 11:cee25a834751 78 #endif
wolfSSL 11:cee25a834751 79
wolfSSL 11:cee25a834751 80 ret = wc_AesSetKey(aes, key, keySz, iv, AES_ENCRYPTION);
wolfSSL 11:cee25a834751 81 if (ret == 0)
wolfSSL 11:cee25a834751 82 ret = wc_AesCbcEncrypt(aes, out, in, inSz);
wolfSSL 11:cee25a834751 83
wolfSSL 11:cee25a834751 84 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 85 XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 86 #endif
wolfSSL 11:cee25a834751 87
wolfSSL 11:cee25a834751 88 return ret;
wolfSSL 11:cee25a834751 89 }
wolfSSL 11:cee25a834751 90 #endif /* !NO_AES && HAVE_AES_CBC */
wolfSSL 11:cee25a834751 91
wolfSSL 11:cee25a834751 92
wolfSSL 11:cee25a834751 93 #ifndef NO_DES3
wolfSSL 11:cee25a834751 94 int wc_Des_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
wolfSSL 11:cee25a834751 95 const byte* key, const byte* iv)
wolfSSL 11:cee25a834751 96 {
wolfSSL 11:cee25a834751 97 int ret = 0;
wolfSSL 11:cee25a834751 98 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 99 Des* des = NULL;
wolfSSL 11:cee25a834751 100 #else
wolfSSL 11:cee25a834751 101 Des des[1];
wolfSSL 11:cee25a834751 102 #endif
wolfSSL 11:cee25a834751 103
wolfSSL 11:cee25a834751 104 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 105 des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 106 if (des == NULL)
wolfSSL 11:cee25a834751 107 return MEMORY_E;
wolfSSL 11:cee25a834751 108 #endif
wolfSSL 11:cee25a834751 109
wolfSSL 11:cee25a834751 110 ret = wc_Des_SetKey(des, key, iv, DES_ENCRYPTION);
wolfSSL 11:cee25a834751 111 if (ret == 0)
wolfSSL 11:cee25a834751 112 ret = wc_Des_CbcEncrypt(des, out, in, sz);
wolfSSL 11:cee25a834751 113
wolfSSL 11:cee25a834751 114 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 115 XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 116 #endif
wolfSSL 11:cee25a834751 117
wolfSSL 11:cee25a834751 118 return ret;
wolfSSL 11:cee25a834751 119 }
wolfSSL 11:cee25a834751 120
wolfSSL 11:cee25a834751 121 int wc_Des_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
wolfSSL 11:cee25a834751 122 const byte* key, const byte* iv)
wolfSSL 11:cee25a834751 123 {
wolfSSL 11:cee25a834751 124 int ret = 0;
wolfSSL 11:cee25a834751 125 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 126 Des* des = NULL;
wolfSSL 11:cee25a834751 127 #else
wolfSSL 11:cee25a834751 128 Des des[1];
wolfSSL 11:cee25a834751 129 #endif
wolfSSL 11:cee25a834751 130
wolfSSL 11:cee25a834751 131 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 132 des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 133 if (des == NULL)
wolfSSL 11:cee25a834751 134 return MEMORY_E;
wolfSSL 11:cee25a834751 135 #endif
wolfSSL 11:cee25a834751 136
wolfSSL 11:cee25a834751 137 ret = wc_Des_SetKey(des, key, iv, DES_DECRYPTION);
wolfSSL 11:cee25a834751 138 if (ret == 0)
wolfSSL 11:cee25a834751 139 ret = wc_Des_CbcDecrypt(des, out, in, sz);
wolfSSL 11:cee25a834751 140
wolfSSL 11:cee25a834751 141 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 142 XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 143 #endif
wolfSSL 11:cee25a834751 144
wolfSSL 11:cee25a834751 145 return ret;
wolfSSL 11:cee25a834751 146 }
wolfSSL 11:cee25a834751 147
wolfSSL 11:cee25a834751 148
wolfSSL 11:cee25a834751 149 int wc_Des3_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
wolfSSL 11:cee25a834751 150 const byte* key, const byte* iv)
wolfSSL 11:cee25a834751 151 {
wolfSSL 11:cee25a834751 152 int ret = 0;
wolfSSL 11:cee25a834751 153 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 154 Des3* des3 = NULL;
wolfSSL 11:cee25a834751 155 #else
wolfSSL 11:cee25a834751 156 Des3 des3[1];
wolfSSL 11:cee25a834751 157 #endif
wolfSSL 11:cee25a834751 158
wolfSSL 11:cee25a834751 159 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 160 des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 161 if (des3 == NULL)
wolfSSL 11:cee25a834751 162 return MEMORY_E;
wolfSSL 11:cee25a834751 163 #endif
wolfSSL 11:cee25a834751 164
wolfSSL 11:cee25a834751 165 ret = wc_Des3_SetKey(des3, key, iv, DES_ENCRYPTION);
wolfSSL 11:cee25a834751 166 if (ret == 0)
wolfSSL 11:cee25a834751 167 ret = wc_Des3_CbcEncrypt(des3, out, in, sz);
wolfSSL 11:cee25a834751 168
wolfSSL 11:cee25a834751 169 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 170 XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 171 #endif
wolfSSL 11:cee25a834751 172
wolfSSL 11:cee25a834751 173 return ret;
wolfSSL 11:cee25a834751 174 }
wolfSSL 11:cee25a834751 175
wolfSSL 11:cee25a834751 176
wolfSSL 11:cee25a834751 177 int wc_Des3_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
wolfSSL 11:cee25a834751 178 const byte* key, const byte* iv)
wolfSSL 11:cee25a834751 179 {
wolfSSL 11:cee25a834751 180 int ret = 0;
wolfSSL 11:cee25a834751 181 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 182 Des3* des3 = NULL;
wolfSSL 11:cee25a834751 183 #else
wolfSSL 11:cee25a834751 184 Des3 des3[1];
wolfSSL 11:cee25a834751 185 #endif
wolfSSL 11:cee25a834751 186
wolfSSL 11:cee25a834751 187 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 188 des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 189 if (des3 == NULL)
wolfSSL 11:cee25a834751 190 return MEMORY_E;
wolfSSL 11:cee25a834751 191 #endif
wolfSSL 11:cee25a834751 192
wolfSSL 11:cee25a834751 193 ret = wc_Des3_SetKey(des3, key, iv, DES_DECRYPTION);
wolfSSL 11:cee25a834751 194 if (ret == 0)
wolfSSL 11:cee25a834751 195 ret = wc_Des3_CbcDecrypt(des3, out, in, sz);
wolfSSL 11:cee25a834751 196
wolfSSL 11:cee25a834751 197 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 11:cee25a834751 198 XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 11:cee25a834751 199 #endif
wolfSSL 11:cee25a834751 200
wolfSSL 11:cee25a834751 201 return ret;
wolfSSL 11:cee25a834751 202 }
wolfSSL 11:cee25a834751 203
wolfSSL 11:cee25a834751 204 #endif /* !NO_DES3 */
wolfSSL 11:cee25a834751 205