[164] | 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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