[388] | 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/hash.h>
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| 31 | #include <wolfssl/wolfcrypt/arc4.h>
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| 32 | #include <wolfssl/wolfcrypt/wc_encrypt.h>
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| 33 | #include <wolfssl/wolfcrypt/error-crypt.h>
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| 34 | #include <wolfssl/wolfcrypt/asn.h>
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| 35 | #include <wolfssl/wolfcrypt/coding.h>
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| 36 | #include <wolfssl/wolfcrypt/pwdbased.h>
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| 37 | #include <wolfssl/wolfcrypt/logging.h>
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| 38 |
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| 39 | #ifdef NO_INLINE
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| 40 | #include <wolfssl/wolfcrypt/misc.h>
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| 41 | #else
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| 42 | #define WOLFSSL_MISC_INCLUDED
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| 43 | #include <wolfcrypt/src/misc.c>
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| 44 | #endif
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| 45 |
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| 46 | #if !defined(NO_AES) && defined(HAVE_AES_CBC)
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| 47 | #ifdef HAVE_AES_DECRYPT
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| 48 | int wc_AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz,
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| 49 | const byte* key, word32 keySz, const byte* iv)
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| 50 | {
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| 51 | int ret = 0;
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| 52 | #ifdef WOLFSSL_SMALL_STACK
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| 53 | Aes* aes = NULL;
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| 54 | #else
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| 55 | Aes aes[1];
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| 56 | #endif
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| 57 |
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| 58 | if (out == NULL || in == NULL || key == NULL || iv == NULL) {
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| 59 | return BAD_FUNC_ARG;
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| 60 | }
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| 61 |
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| 62 | #ifdef WOLFSSL_SMALL_STACK
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| 63 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 64 | if (aes == NULL)
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| 65 | return MEMORY_E;
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| 66 | #endif
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| 67 |
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| 68 | ret = wc_AesInit(aes, NULL, INVALID_DEVID);
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| 69 | if (ret == 0) {
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| 70 | ret = wc_AesSetKey(aes, key, keySz, iv, AES_DECRYPTION);
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| 71 | if (ret == 0)
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| 72 | ret = wc_AesCbcDecrypt(aes, out, in, inSz);
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| 73 |
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| 74 | wc_AesFree(aes);
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| 75 | }
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| 76 |
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| 77 | #ifdef WOLFSSL_SMALL_STACK
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| 78 | XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 79 | #endif
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| 80 |
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| 81 | return ret;
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| 82 | }
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| 83 | #endif /* HAVE_AES_DECRYPT */
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| 84 |
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| 85 | int wc_AesCbcEncryptWithKey(byte* out, const byte* in, word32 inSz,
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| 86 | const byte* key, word32 keySz, const byte* iv)
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| 87 | {
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| 88 | int ret = 0;
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| 89 | #ifdef WOLFSSL_SMALL_STACK
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| 90 | Aes* aes = NULL;
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| 91 | #else
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| 92 | Aes aes[1];
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| 93 | #endif
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| 94 |
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| 95 | #ifdef WOLFSSL_SMALL_STACK
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| 96 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 97 | if (aes == NULL)
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| 98 | return MEMORY_E;
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| 99 | #endif
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| 100 |
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| 101 | ret = wc_AesInit(aes, NULL, INVALID_DEVID);
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| 102 | if (ret == 0) {
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| 103 | ret = wc_AesSetKey(aes, key, keySz, iv, AES_ENCRYPTION);
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| 104 | if (ret == 0)
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| 105 | ret = wc_AesCbcEncrypt(aes, out, in, inSz);
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| 106 |
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| 107 | wc_AesFree(aes);
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| 108 | }
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| 109 |
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| 110 | #ifdef WOLFSSL_SMALL_STACK
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| 111 | XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 112 | #endif
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| 113 |
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| 114 | return ret;
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| 115 | }
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| 116 | #endif /* !NO_AES && HAVE_AES_CBC */
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| 117 |
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| 118 |
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| 119 | #ifndef NO_DES3
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| 120 | int wc_Des_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
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| 121 | const byte* key, const byte* iv)
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| 122 | {
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| 123 | int ret = 0;
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| 124 | #ifdef WOLFSSL_SMALL_STACK
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| 125 | Des* des = NULL;
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| 126 | #else
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| 127 | Des des[1];
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| 128 | #endif
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| 129 |
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| 130 | #ifdef WOLFSSL_SMALL_STACK
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| 131 | des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 132 | if (des == NULL)
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| 133 | return MEMORY_E;
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| 134 | #endif
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| 135 |
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| 136 | ret = wc_Des_SetKey(des, key, iv, DES_ENCRYPTION);
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| 137 | if (ret == 0)
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| 138 | ret = wc_Des_CbcEncrypt(des, out, in, sz);
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| 139 |
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| 140 | #ifdef WOLFSSL_SMALL_STACK
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| 141 | XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 142 | #endif
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| 143 |
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| 144 | return ret;
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| 145 | }
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| 146 |
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| 147 | int wc_Des_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
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| 148 | const byte* key, const byte* iv)
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| 149 | {
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| 150 | int ret = 0;
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| 151 | #ifdef WOLFSSL_SMALL_STACK
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| 152 | Des* des = NULL;
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| 153 | #else
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| 154 | Des des[1];
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| 155 | #endif
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| 156 |
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| 157 | #ifdef WOLFSSL_SMALL_STACK
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| 158 | des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 159 | if (des == NULL)
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| 160 | return MEMORY_E;
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| 161 | #endif
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| 162 |
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| 163 | ret = wc_Des_SetKey(des, key, iv, DES_DECRYPTION);
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| 164 | if (ret == 0)
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| 165 | ret = wc_Des_CbcDecrypt(des, out, in, sz);
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| 166 |
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| 167 | #ifdef WOLFSSL_SMALL_STACK
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| 168 | XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 169 | #endif
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| 170 |
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| 171 | return ret;
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| 172 | }
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| 173 |
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| 174 |
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| 175 | int wc_Des3_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
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| 176 | const byte* key, const byte* iv)
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| 177 | {
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| 178 | int ret = 0;
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| 179 | #ifdef WOLFSSL_SMALL_STACK
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| 180 | Des3* des3 = NULL;
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| 181 | #else
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| 182 | Des3 des3[1];
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| 183 | #endif
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| 184 |
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| 185 | #ifdef WOLFSSL_SMALL_STACK
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| 186 | des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 187 | if (des3 == NULL)
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| 188 | return MEMORY_E;
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| 189 | #endif
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| 190 |
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| 191 | ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
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| 192 | if (ret == 0) {
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| 193 | ret = wc_Des3_SetKey(des3, key, iv, DES_ENCRYPTION);
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| 194 | if (ret == 0)
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| 195 | ret = wc_Des3_CbcEncrypt(des3, out, in, sz);
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| 196 | wc_Des3Free(des3);
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| 197 | }
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| 198 |
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| 199 | #ifdef WOLFSSL_SMALL_STACK
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| 200 | XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 201 | #endif
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| 202 |
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| 203 | return ret;
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| 204 | }
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| 205 |
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| 206 |
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| 207 | int wc_Des3_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
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| 208 | const byte* key, const byte* iv)
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| 209 | {
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| 210 | int ret = 0;
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| 211 | #ifdef WOLFSSL_SMALL_STACK
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| 212 | Des3* des3 = NULL;
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| 213 | #else
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| 214 | Des3 des3[1];
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| 215 | #endif
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| 216 |
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| 217 | #ifdef WOLFSSL_SMALL_STACK
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| 218 | des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 219 | if (des3 == NULL)
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| 220 | return MEMORY_E;
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| 221 | #endif
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| 222 |
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| 223 | ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
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| 224 | if (ret == 0) {
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| 225 | ret = wc_Des3_SetKey(des3, key, iv, DES_DECRYPTION);
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| 226 | if (ret == 0)
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| 227 | ret = wc_Des3_CbcDecrypt(des3, out, in, sz);
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| 228 | wc_Des3Free(des3);
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| 229 | }
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| 230 |
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| 231 | #ifdef WOLFSSL_SMALL_STACK
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| 232 | XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 233 | #endif
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| 234 |
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| 235 | return ret;
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| 236 | }
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| 237 |
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| 238 | #endif /* !NO_DES3 */
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| 239 |
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| 240 |
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| 241 | #ifdef WOLFSSL_ENCRYPTED_KEYS
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| 242 |
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| 243 | int wc_BufferKeyDecrypt(EncryptedInfo* info, byte* der, word32 derSz,
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| 244 | const byte* password, int passwordSz, int hashType)
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| 245 | {
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| 246 | int ret = NOT_COMPILED_IN;
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| 247 | #ifdef WOLFSSL_SMALL_STACK
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| 248 | byte* key = NULL;
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| 249 | #else
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| 250 | byte key[WC_MAX_SYM_KEY_SIZE];
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| 251 | #endif
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| 252 |
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| 253 | (void)derSz;
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| 254 | (void)passwordSz;
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| 255 | (void)hashType;
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| 256 |
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| 257 | if (der == NULL || password == NULL || info == NULL || info->keySz == 0) {
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| 258 | return BAD_FUNC_ARG;
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| 259 | }
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| 260 |
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| 261 | /* use file's salt for key derivation, hex decode first */
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| 262 | if (Base16_Decode(info->iv, info->ivSz, info->iv, &info->ivSz) != 0) {
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| 263 | return BUFFER_E;
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| 264 | }
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| 265 | if (info->ivSz < PKCS5_SALT_SZ)
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| 266 | return BUFFER_E;
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| 267 |
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| 268 | #ifdef WOLFSSL_SMALL_STACK
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| 269 | key = (byte*)XMALLOC(WC_MAX_SYM_KEY_SIZE, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 270 | if (key == NULL) {
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| 271 | return MEMORY_E;
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| 272 | }
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| 273 | #endif
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| 274 |
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| 275 | #ifndef NO_PWDBASED
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| 276 | if ((ret = wc_PBKDF1(key, password, passwordSz, info->iv, PKCS5_SALT_SZ, 1,
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| 277 | info->keySz, hashType)) != 0) {
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| 278 | #ifdef WOLFSSL_SMALL_STACK
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| 279 | XFREE(key, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 280 | #endif
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| 281 | return ret;
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| 282 | }
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| 283 | #endif
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| 284 |
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| 285 | #ifndef NO_DES3
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| 286 | if (info->cipherType == WC_CIPHER_DES)
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| 287 | ret = wc_Des_CbcDecryptWithKey(der, der, derSz, key, info->iv);
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| 288 | if (info->cipherType == WC_CIPHER_DES3)
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| 289 | ret = wc_Des3_CbcDecryptWithKey(der, der, derSz, key, info->iv);
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| 290 | #endif /* NO_DES3 */
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| 291 | #if !defined(NO_AES) && defined(HAVE_AES_CBC) && defined(HAVE_AES_DECRYPT)
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| 292 | if (info->cipherType == WC_CIPHER_AES_CBC)
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| 293 | ret = wc_AesCbcDecryptWithKey(der, der, derSz, key, info->keySz,
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| 294 | info->iv);
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| 295 | #endif /* !NO_AES && HAVE_AES_CBC && HAVE_AES_DECRYPT */
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| 296 |
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| 297 | #ifdef WOLFSSL_SMALL_STACK
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| 298 | XFREE(key, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 299 | #endif
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| 300 |
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| 301 | return ret;
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| 302 | }
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| 303 |
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| 304 | int wc_BufferKeyEncrypt(EncryptedInfo* info, byte* der, word32 derSz,
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| 305 | const byte* password, int passwordSz, int hashType)
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| 306 | {
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| 307 | int ret = NOT_COMPILED_IN;
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| 308 | #ifdef WOLFSSL_SMALL_STACK
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| 309 | byte* key = NULL;
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| 310 | #else
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| 311 | byte key[WC_MAX_SYM_KEY_SIZE];
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| 312 | #endif
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| 313 |
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| 314 | (void)derSz;
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| 315 | (void)passwordSz;
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| 316 | (void)hashType;
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| 317 |
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| 318 | if (der == NULL || password == NULL || info == NULL || info->keySz == 0 ||
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| 319 | info->ivSz < PKCS5_SALT_SZ) {
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| 320 | return BAD_FUNC_ARG;
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| 321 | }
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| 322 |
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| 323 | #ifdef WOLFSSL_SMALL_STACK
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| 324 | key = (byte*)XMALLOC(WC_MAX_SYM_KEY_SIZE, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 325 | if (key == NULL) {
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| 326 | return MEMORY_E;
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| 327 | }
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| 328 | #endif /* WOLFSSL_SMALL_STACK */
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| 329 |
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| 330 | #ifndef NO_PWDBASED
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| 331 | if ((ret = wc_PBKDF1(key, password, passwordSz, info->iv, PKCS5_SALT_SZ, 1,
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| 332 | info->keySz, hashType)) != 0) {
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| 333 | #ifdef WOLFSSL_SMALL_STACK
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| 334 | XFREE(key, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 335 | #endif
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| 336 | return ret;
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| 337 | }
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| 338 | #endif
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| 339 |
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| 340 | #ifndef NO_DES3
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| 341 | if (info->cipherType == WC_CIPHER_DES)
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| 342 | ret = wc_Des_CbcEncryptWithKey(der, der, derSz, key, info->iv);
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| 343 | if (info->cipherType == WC_CIPHER_DES3)
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| 344 | ret = wc_Des3_CbcEncryptWithKey(der, der, derSz, key, info->iv);
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| 345 | #endif /* NO_DES3 */
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| 346 | #if !defined(NO_AES) && defined(HAVE_AES_CBC)
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| 347 | if (info->cipherType == WC_CIPHER_AES_CBC)
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| 348 | ret = wc_AesCbcEncryptWithKey(der, der, derSz, key, info->keySz,
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| 349 | info->iv);
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| 350 | #endif /* !NO_AES && HAVE_AES_CBC */
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| 351 |
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| 352 | #ifdef WOLFSSL_SMALL_STACK
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| 353 | XFREE(key, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 354 | #endif
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| 355 |
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| 356 | return ret;
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| 357 | }
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| 358 |
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| 359 | #endif /* WOLFSSL_ENCRYPTED_KEYS */
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| 360 |
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| 361 |
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| 362 | #ifndef NO_PWDBASED
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| 363 |
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| 364 | /* Decrypt/Encrypt input in place from parameters based on id
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| 365 | *
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| 366 | * returns a negative value on fail case
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| 367 | */
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| 368 | int wc_CryptKey(const char* password, int passwordSz, byte* salt,
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| 369 | int saltSz, int iterations, int id, byte* input,
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| 370 | int length, int version, byte* cbcIv, int enc)
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| 371 | {
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| 372 | int typeH;
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| 373 | int derivedLen;
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| 374 | int ret = 0;
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| 375 | #ifdef WOLFSSL_SMALL_STACK
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| 376 | byte* key;
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| 377 | #else
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| 378 | byte key[MAX_KEY_SIZE];
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| 379 | #endif
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| 380 |
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| 381 | (void)input;
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| 382 | (void)length;
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| 383 | (void)enc;
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| 384 |
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| 385 | WOLFSSL_ENTER("wc_CryptKey");
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| 386 |
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| 387 | switch (id) {
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| 388 | #ifndef NO_DES3
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| 389 | #ifndef NO_MD5
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| 390 | case PBE_MD5_DES:
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| 391 | typeH = WC_MD5;
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| 392 | derivedLen = 16; /* may need iv for v1.5 */
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| 393 | break;
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| 394 | #endif
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| 395 | #ifndef NO_SHA
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| 396 | case PBE_SHA1_DES:
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| 397 | typeH = WC_SHA;
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| 398 | derivedLen = 16; /* may need iv for v1.5 */
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| 399 | break;
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| 400 |
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| 401 | case PBE_SHA1_DES3:
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| 402 | typeH = WC_SHA;
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| 403 | derivedLen = 32; /* may need iv for v1.5 */
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| 404 | break;
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| 405 | #endif /* !NO_SHA */
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| 406 | #endif /* !NO_DES3 */
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| 407 | #if !defined(NO_SHA) && !defined(NO_RC4)
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| 408 | case PBE_SHA1_RC4_128:
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| 409 | typeH = WC_SHA;
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| 410 | derivedLen = 16;
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| 411 | break;
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| 412 | #endif
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| 413 | #ifdef WOLFSSL_AES_256
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| 414 | case PBE_AES256_CBC:
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| 415 | typeH = WC_SHA256;
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| 416 | derivedLen = 32;
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| 417 | break;
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| 418 | #endif
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| 419 | default:
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| 420 | WOLFSSL_MSG("Unknown/Unsupported encrypt/decrypt id");
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| 421 | return ALGO_ID_E;
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| 422 | }
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| 423 |
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| 424 | #ifdef WOLFSSL_SMALL_STACK
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| 425 | key = (byte*)XMALLOC(MAX_KEY_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 426 | if (key == NULL)
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| 427 | return MEMORY_E;
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| 428 | #endif
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| 429 |
|
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| 430 | if (version == PKCS5v2)
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| 431 | ret = wc_PBKDF2(key, (byte*)password, passwordSz,
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| 432 | salt, saltSz, iterations, derivedLen, typeH);
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| 433 | #ifndef NO_SHA
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| 434 | else if (version == PKCS5)
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| 435 | ret = wc_PBKDF1(key, (byte*)password, passwordSz,
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| 436 | salt, saltSz, iterations, derivedLen, typeH);
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| 437 | #endif
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| 438 | else if (version == PKCS12v1) {
|
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| 439 | int i, idx = 0;
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| 440 | byte unicodePasswd[MAX_UNICODE_SZ];
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| 441 |
|
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| 442 | if ( (passwordSz * 2 + 2) > (int)sizeof(unicodePasswd)) {
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| 443 | #ifdef WOLFSSL_SMALL_STACK
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| 444 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 445 | #endif
|
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| 446 | return UNICODE_SIZE_E;
|
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| 447 | }
|
---|
| 448 |
|
---|
| 449 | for (i = 0; i < passwordSz; i++) {
|
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| 450 | unicodePasswd[idx++] = 0x00;
|
---|
| 451 | unicodePasswd[idx++] = (byte)password[i];
|
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| 452 | }
|
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| 453 | /* add trailing NULL */
|
---|
| 454 | unicodePasswd[idx++] = 0x00;
|
---|
| 455 | unicodePasswd[idx++] = 0x00;
|
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| 456 |
|
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| 457 | ret = wc_PKCS12_PBKDF(key, unicodePasswd, idx, salt, saltSz,
|
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| 458 | iterations, derivedLen, typeH, 1);
|
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| 459 | if (id != PBE_SHA1_RC4_128)
|
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| 460 | ret += wc_PKCS12_PBKDF(cbcIv, unicodePasswd, idx, salt, saltSz,
|
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| 461 | iterations, 8, typeH, 2);
|
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| 462 | }
|
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| 463 | else {
|
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| 464 | #ifdef WOLFSSL_SMALL_STACK
|
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| 465 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 466 | #endif
|
---|
| 467 | WOLFSSL_MSG("Unknown/Unsupported PKCS version");
|
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| 468 | return ALGO_ID_E;
|
---|
| 469 | }
|
---|
| 470 |
|
---|
| 471 | if (ret != 0) {
|
---|
| 472 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 473 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 474 | #endif
|
---|
| 475 | return ret;
|
---|
| 476 | }
|
---|
| 477 |
|
---|
| 478 | switch (id) {
|
---|
| 479 | #ifndef NO_DES3
|
---|
| 480 | #if !defined(NO_SHA) || !defined(NO_MD5)
|
---|
| 481 | case PBE_MD5_DES:
|
---|
| 482 | case PBE_SHA1_DES:
|
---|
| 483 | {
|
---|
| 484 | Des des;
|
---|
| 485 | byte* desIv = key + 8;
|
---|
| 486 |
|
---|
| 487 | if (version == PKCS5v2 || version == PKCS12v1)
|
---|
| 488 | desIv = cbcIv;
|
---|
| 489 |
|
---|
| 490 | if (enc) {
|
---|
| 491 | ret = wc_Des_SetKey(&des, key, desIv, DES_ENCRYPTION);
|
---|
| 492 | }
|
---|
| 493 | else {
|
---|
| 494 | ret = wc_Des_SetKey(&des, key, desIv, DES_DECRYPTION);
|
---|
| 495 | }
|
---|
| 496 | if (ret != 0) {
|
---|
| 497 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 498 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 499 | #endif
|
---|
| 500 | return ret;
|
---|
| 501 | }
|
---|
| 502 |
|
---|
| 503 | if (enc) {
|
---|
| 504 | wc_Des_CbcEncrypt(&des, input, input, length);
|
---|
| 505 | }
|
---|
| 506 | else {
|
---|
| 507 | wc_Des_CbcDecrypt(&des, input, input, length);
|
---|
| 508 | }
|
---|
| 509 | break;
|
---|
| 510 | }
|
---|
| 511 | #endif /* !NO_SHA || !NO_MD5 */
|
---|
| 512 |
|
---|
| 513 | #ifndef NO_SHA
|
---|
| 514 | case PBE_SHA1_DES3:
|
---|
| 515 | {
|
---|
| 516 | Des3 des;
|
---|
| 517 | byte* desIv = key + 24;
|
---|
| 518 |
|
---|
| 519 | if (version == PKCS5v2 || version == PKCS12v1)
|
---|
| 520 | desIv = cbcIv;
|
---|
| 521 |
|
---|
| 522 | ret = wc_Des3Init(&des, NULL, INVALID_DEVID);
|
---|
| 523 | if (ret != 0) {
|
---|
| 524 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 525 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 526 | #endif
|
---|
| 527 | return ret;
|
---|
| 528 | }
|
---|
| 529 | if (enc) {
|
---|
| 530 | ret = wc_Des3_SetKey(&des, key, desIv, DES_ENCRYPTION);
|
---|
| 531 | }
|
---|
| 532 | else {
|
---|
| 533 | ret = wc_Des3_SetKey(&des, key, desIv, DES_DECRYPTION);
|
---|
| 534 | }
|
---|
| 535 | if (ret != 0) {
|
---|
| 536 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 537 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 538 | #endif
|
---|
| 539 | return ret;
|
---|
| 540 | }
|
---|
| 541 | if (enc) {
|
---|
| 542 | ret = wc_Des3_CbcEncrypt(&des, input, input, length);
|
---|
| 543 | }
|
---|
| 544 | else {
|
---|
| 545 | ret = wc_Des3_CbcDecrypt(&des, input, input, length);
|
---|
| 546 | }
|
---|
| 547 | if (ret != 0) {
|
---|
| 548 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 549 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 550 | #endif
|
---|
| 551 | return ret;
|
---|
| 552 | }
|
---|
| 553 | break;
|
---|
| 554 | }
|
---|
| 555 | #endif /* !NO_SHA */
|
---|
| 556 | #endif
|
---|
| 557 | #if !defined(NO_RC4) && !defined(NO_SHA)
|
---|
| 558 | case PBE_SHA1_RC4_128:
|
---|
| 559 | {
|
---|
| 560 | Arc4 dec;
|
---|
| 561 |
|
---|
| 562 | wc_Arc4SetKey(&dec, key, derivedLen);
|
---|
| 563 | wc_Arc4Process(&dec, input, input, length);
|
---|
| 564 | break;
|
---|
| 565 | }
|
---|
| 566 | #endif
|
---|
| 567 | #if !defined(NO_AES) && defined(HAVE_AES_CBC)
|
---|
| 568 | #ifdef WOLFSSL_AES_256
|
---|
| 569 | case PBE_AES256_CBC:
|
---|
| 570 | {
|
---|
| 571 | Aes aes;
|
---|
| 572 | ret = wc_AesInit(&aes, NULL, INVALID_DEVID);
|
---|
| 573 | if (ret == 0) {
|
---|
| 574 | if (enc) {
|
---|
| 575 | ret = wc_AesSetKey(&aes, key, derivedLen, cbcIv,
|
---|
| 576 | AES_ENCRYPTION);
|
---|
| 577 | }
|
---|
| 578 | else {
|
---|
| 579 | ret = wc_AesSetKey(&aes, key, derivedLen, cbcIv,
|
---|
| 580 | AES_DECRYPTION);
|
---|
| 581 | }
|
---|
| 582 | }
|
---|
| 583 | if (ret == 0) {
|
---|
| 584 | if (enc)
|
---|
| 585 | ret = wc_AesCbcEncrypt(&aes, input, input, length);
|
---|
| 586 | else
|
---|
| 587 | ret = wc_AesCbcDecrypt(&aes, input, input, length);
|
---|
| 588 | }
|
---|
| 589 | if (ret != 0) {
|
---|
| 590 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 591 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 592 | #endif
|
---|
| 593 | return ret;
|
---|
| 594 | }
|
---|
| 595 | ForceZero(&aes, sizeof(Aes));
|
---|
| 596 | break;
|
---|
| 597 | }
|
---|
| 598 | #endif /* WOLFSSL_AES_256 */
|
---|
| 599 | #endif /* !NO_AES && HAVE_AES_CBC */
|
---|
| 600 |
|
---|
| 601 | default:
|
---|
| 602 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 603 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 604 | #endif
|
---|
| 605 | WOLFSSL_MSG("Unknown/Unsupported encrypt/decryption algorithm");
|
---|
| 606 | return ALGO_ID_E;
|
---|
| 607 | }
|
---|
| 608 |
|
---|
| 609 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 610 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 611 | #endif
|
---|
| 612 |
|
---|
| 613 | return ret;
|
---|
| 614 | }
|
---|
| 615 |
|
---|
| 616 | #endif /* !NO_PWDBASED */
|
---|