[337] | 1 | /* wc_encrypt.c
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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/aes.h>
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| 29 | #include <wolfssl/wolfcrypt/des3.h>
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| 30 | #include <wolfssl/wolfcrypt/wc_encrypt.h>
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| 31 | #include <wolfssl/wolfcrypt/error-crypt.h>
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| 32 |
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| 33 |
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| 34 | #if !defined(NO_AES) && defined(HAVE_AES_CBC)
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| 35 | #ifdef HAVE_AES_DECRYPT
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| 36 | int wc_AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz,
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| 37 | const byte* key, word32 keySz, const byte* iv)
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| 38 | {
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| 39 | int ret = 0;
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| 40 | #ifdef WOLFSSL_SMALL_STACK
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| 41 | Aes* aes = NULL;
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| 42 | #else
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| 43 | Aes aes[1];
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| 44 | #endif
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| 45 |
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| 46 | if (out == NULL || in == NULL || key == NULL || iv == NULL) {
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| 47 | return BAD_FUNC_ARG;
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| 48 | }
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| 49 |
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| 50 | #ifdef WOLFSSL_SMALL_STACK
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| 51 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 52 | if (aes == NULL)
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| 53 | return MEMORY_E;
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| 54 | #endif
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| 55 |
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| 56 | ret = wc_AesInit(aes, NULL, INVALID_DEVID);
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| 57 | if (ret == 0) {
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| 58 | ret = wc_AesSetKey(aes, key, keySz, iv, AES_DECRYPTION);
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| 59 | if (ret == 0)
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| 60 | ret = wc_AesCbcDecrypt(aes, out, in, inSz);
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| 61 |
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| 62 | wc_AesFree(aes);
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| 63 | }
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| 64 |
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| 65 | #ifdef WOLFSSL_SMALL_STACK
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| 66 | XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 67 | #endif
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| 68 |
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| 69 | return ret;
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| 70 | }
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| 71 | #endif /* HAVE_AES_DECRYPT */
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| 72 |
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| 73 | int wc_AesCbcEncryptWithKey(byte* out, const byte* in, word32 inSz,
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| 74 | const byte* key, word32 keySz, const byte* iv)
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| 75 | {
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| 76 | int ret = 0;
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| 77 | #ifdef WOLFSSL_SMALL_STACK
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| 78 | Aes* aes = NULL;
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| 79 | #else
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| 80 | Aes aes[1];
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| 81 | #endif
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| 82 |
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| 83 | #ifdef WOLFSSL_SMALL_STACK
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| 84 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 85 | if (aes == NULL)
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| 86 | return MEMORY_E;
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| 87 | #endif
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| 88 |
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| 89 | ret = wc_AesInit(aes, NULL, INVALID_DEVID);
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| 90 | if (ret == 0) {
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| 91 | ret = wc_AesSetKey(aes, key, keySz, iv, AES_ENCRYPTION);
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| 92 | if (ret == 0)
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| 93 | ret = wc_AesCbcEncrypt(aes, out, in, inSz);
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| 94 |
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| 95 | wc_AesFree(aes);
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| 96 | }
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| 97 |
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| 98 | #ifdef WOLFSSL_SMALL_STACK
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| 99 | XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 100 | #endif
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| 101 |
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| 102 | return ret;
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| 103 | }
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| 104 | #endif /* !NO_AES && HAVE_AES_CBC */
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| 105 |
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| 106 |
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| 107 | #ifndef NO_DES3
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| 108 | int wc_Des_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
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| 109 | const byte* key, const byte* iv)
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| 110 | {
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| 111 | int ret = 0;
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| 112 | #ifdef WOLFSSL_SMALL_STACK
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| 113 | Des* des = NULL;
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| 114 | #else
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| 115 | Des des[1];
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| 116 | #endif
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| 117 |
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| 118 | #ifdef WOLFSSL_SMALL_STACK
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| 119 | des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 120 | if (des == NULL)
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| 121 | return MEMORY_E;
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| 122 | #endif
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| 123 |
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| 124 | ret = wc_Des_SetKey(des, key, iv, DES_ENCRYPTION);
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| 125 | if (ret == 0)
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| 126 | ret = wc_Des_CbcEncrypt(des, out, in, sz);
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| 127 |
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| 128 | #ifdef WOLFSSL_SMALL_STACK
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| 129 | XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 130 | #endif
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| 131 |
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| 132 | return ret;
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| 133 | }
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| 134 |
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| 135 | int wc_Des_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
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| 136 | const byte* key, const byte* iv)
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| 137 | {
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| 138 | int ret = 0;
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| 139 | #ifdef WOLFSSL_SMALL_STACK
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| 140 | Des* des = NULL;
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| 141 | #else
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| 142 | Des des[1];
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| 143 | #endif
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| 144 |
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| 145 | #ifdef WOLFSSL_SMALL_STACK
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| 146 | des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 147 | if (des == NULL)
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| 148 | return MEMORY_E;
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| 149 | #endif
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| 150 |
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| 151 | ret = wc_Des_SetKey(des, key, iv, DES_DECRYPTION);
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| 152 | if (ret == 0)
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| 153 | ret = wc_Des_CbcDecrypt(des, out, in, sz);
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| 154 |
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| 155 | #ifdef WOLFSSL_SMALL_STACK
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| 156 | XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 157 | #endif
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| 158 |
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| 159 | return ret;
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| 160 | }
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| 161 |
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| 162 |
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| 163 | int wc_Des3_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
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| 164 | const byte* key, const byte* iv)
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| 165 | {
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| 166 | int ret = 0;
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| 167 | #ifdef WOLFSSL_SMALL_STACK
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| 168 | Des3* des3 = NULL;
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| 169 | #else
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| 170 | Des3 des3[1];
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| 171 | #endif
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| 172 |
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| 173 | #ifdef WOLFSSL_SMALL_STACK
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| 174 | des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 175 | if (des3 == NULL)
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| 176 | return MEMORY_E;
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| 177 | #endif
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| 178 |
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| 179 | ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
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| 180 | if (ret == 0) {
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| 181 | ret = wc_Des3_SetKey(des3, key, iv, DES_ENCRYPTION);
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| 182 | if (ret == 0)
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| 183 | ret = wc_Des3_CbcEncrypt(des3, out, in, sz);
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| 184 | wc_Des3Free(des3);
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| 185 | }
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| 186 |
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| 187 | #ifdef WOLFSSL_SMALL_STACK
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| 188 | XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 189 | #endif
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| 190 |
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| 191 | return ret;
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| 192 | }
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| 193 |
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| 194 |
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| 195 | int wc_Des3_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
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| 196 | const byte* key, const byte* iv)
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| 197 | {
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| 198 | int ret = 0;
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| 199 | #ifdef WOLFSSL_SMALL_STACK
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| 200 | Des3* des3 = NULL;
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| 201 | #else
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| 202 | Des3 des3[1];
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| 203 | #endif
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| 204 |
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| 205 | #ifdef WOLFSSL_SMALL_STACK
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| 206 | des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 207 | if (des3 == NULL)
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| 208 | return MEMORY_E;
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| 209 | #endif
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| 210 |
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| 211 | ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
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| 212 | if (ret == 0) {
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| 213 | ret = wc_Des3_SetKey(des3, key, iv, DES_DECRYPTION);
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| 214 | if (ret == 0)
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| 215 | ret = wc_Des3_CbcDecrypt(des3, out, in, sz);
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| 216 | wc_Des3Free(des3);
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| 217 | }
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| 218 |
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| 219 | #ifdef WOLFSSL_SMALL_STACK
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| 220 | XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 221 | #endif
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| 222 |
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| 223 | return ret;
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| 224 | }
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| 225 |
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| 226 | #endif /* !NO_DES3 */
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