[457] | 1 | /* wc_encrypt.c
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| 2 | *
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| 3 | * Copyright (C) 2006-2020 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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[464] | 31 | #include <wolfssl/wolfcrypt/rc2.h>
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[457] | 32 | #include <wolfssl/wolfcrypt/arc4.h>
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| 33 | #include <wolfssl/wolfcrypt/wc_encrypt.h>
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| 34 | #include <wolfssl/wolfcrypt/error-crypt.h>
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| 35 | #include <wolfssl/wolfcrypt/asn.h>
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| 36 | #include <wolfssl/wolfcrypt/coding.h>
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| 37 | #include <wolfssl/wolfcrypt/pwdbased.h>
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| 38 | #include <wolfssl/wolfcrypt/logging.h>
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| 39 |
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| 40 | #ifdef NO_INLINE
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| 41 | #include <wolfssl/wolfcrypt/misc.h>
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| 42 | #else
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| 43 | #define WOLFSSL_MISC_INCLUDED
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| 44 | #include <wolfcrypt/src/misc.c>
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| 45 | #endif
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| 46 |
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| 47 | #if !defined(NO_AES) && defined(HAVE_AES_CBC)
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| 48 | #ifdef HAVE_AES_DECRYPT
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| 49 | int wc_AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz,
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| 50 | const byte* key, word32 keySz, const byte* iv)
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| 51 | {
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| 52 | int ret = 0;
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| 53 | #ifdef WOLFSSL_SMALL_STACK
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| 54 | Aes* aes = NULL;
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| 55 | #else
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| 56 | Aes aes[1];
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| 57 | #endif
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| 58 |
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| 59 | if (out == NULL || in == NULL || key == NULL || iv == NULL) {
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| 60 | return BAD_FUNC_ARG;
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| 61 | }
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| 62 |
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| 63 | #ifdef WOLFSSL_SMALL_STACK
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| 64 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 65 | if (aes == NULL)
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| 66 | return MEMORY_E;
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| 67 | #endif
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| 68 |
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| 69 | ret = wc_AesInit(aes, NULL, INVALID_DEVID);
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| 70 | if (ret == 0) {
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| 71 | ret = wc_AesSetKey(aes, key, keySz, iv, AES_DECRYPTION);
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| 72 | if (ret == 0)
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| 73 | ret = wc_AesCbcDecrypt(aes, out, in, inSz);
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| 74 |
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| 75 | wc_AesFree(aes);
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| 76 | }
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| 77 |
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| 78 | #ifdef WOLFSSL_SMALL_STACK
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| 79 | XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 80 | #endif
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| 81 |
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| 82 | return ret;
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| 83 | }
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| 84 | #endif /* HAVE_AES_DECRYPT */
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| 85 |
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| 86 | int wc_AesCbcEncryptWithKey(byte* out, const byte* in, word32 inSz,
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| 87 | const byte* key, word32 keySz, const byte* iv)
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| 88 | {
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| 89 | int ret = 0;
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| 90 | #ifdef WOLFSSL_SMALL_STACK
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| 91 | Aes* aes;
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| 92 | #else
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| 93 | Aes aes[1];
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| 94 | #endif
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| 95 |
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| 96 | #ifdef WOLFSSL_SMALL_STACK
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| 97 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 98 | if (aes == NULL)
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| 99 | return MEMORY_E;
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| 100 | #endif
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| 101 |
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| 102 | ret = wc_AesInit(aes, NULL, INVALID_DEVID);
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| 103 | if (ret == 0) {
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| 104 | ret = wc_AesSetKey(aes, key, keySz, iv, AES_ENCRYPTION);
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| 105 | if (ret == 0)
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| 106 | ret = wc_AesCbcEncrypt(aes, out, in, inSz);
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| 107 |
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| 108 | wc_AesFree(aes);
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| 109 | }
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| 110 |
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| 111 | #ifdef WOLFSSL_SMALL_STACK
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| 112 | XFREE(aes, 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 | #endif /* !NO_AES && HAVE_AES_CBC */
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| 118 |
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| 119 |
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| 120 | #if !defined(NO_DES3) && !defined(WOLFSSL_TI_CRYPT)
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| 121 | int wc_Des_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
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| 122 | const byte* key, const byte* iv)
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| 123 | {
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| 124 | int ret = 0;
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| 125 | #ifdef WOLFSSL_SMALL_STACK
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| 126 | Des* des;
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| 127 | #else
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| 128 | Des des[1];
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| 129 | #endif
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| 130 |
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| 131 | #ifdef WOLFSSL_SMALL_STACK
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| 132 | des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 133 | if (des == NULL)
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| 134 | return MEMORY_E;
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| 135 | #endif
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| 136 |
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| 137 | ret = wc_Des_SetKey(des, key, iv, DES_ENCRYPTION);
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| 138 | if (ret == 0)
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| 139 | ret = wc_Des_CbcEncrypt(des, out, in, sz);
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| 140 |
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| 141 | #ifdef WOLFSSL_SMALL_STACK
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| 142 | XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 143 | #endif
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| 144 |
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| 145 | return ret;
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| 146 | }
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| 147 |
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| 148 | int wc_Des_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
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| 149 | const byte* key, const byte* iv)
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| 150 | {
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| 151 | int ret = 0;
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| 152 | #ifdef WOLFSSL_SMALL_STACK
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| 153 | Des* des;
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| 154 | #else
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| 155 | Des des[1];
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| 156 | #endif
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| 157 |
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| 158 | #ifdef WOLFSSL_SMALL_STACK
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| 159 | des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 160 | if (des == NULL)
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| 161 | return MEMORY_E;
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| 162 | #endif
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| 163 |
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| 164 | ret = wc_Des_SetKey(des, key, iv, DES_DECRYPTION);
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| 165 | if (ret == 0)
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| 166 | ret = wc_Des_CbcDecrypt(des, out, in, sz);
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| 167 |
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| 168 | #ifdef WOLFSSL_SMALL_STACK
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| 169 | XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 170 | #endif
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| 171 |
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| 172 | return ret;
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| 173 | }
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| 174 |
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| 175 |
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| 176 | int wc_Des3_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
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| 177 | const byte* key, const byte* iv)
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| 178 | {
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| 179 | int ret = 0;
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| 180 | #ifdef WOLFSSL_SMALL_STACK
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| 181 | Des3* des3;
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| 182 | #else
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| 183 | Des3 des3[1];
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| 184 | #endif
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| 185 |
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| 186 | #ifdef WOLFSSL_SMALL_STACK
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| 187 | des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 188 | if (des3 == NULL)
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| 189 | return MEMORY_E;
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| 190 | #endif
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| 191 |
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| 192 | ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
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| 193 | if (ret == 0) {
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| 194 | ret = wc_Des3_SetKey(des3, key, iv, DES_ENCRYPTION);
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| 195 | if (ret == 0)
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| 196 | ret = wc_Des3_CbcEncrypt(des3, out, in, sz);
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| 197 | wc_Des3Free(des3);
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| 198 | }
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| 199 |
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| 200 | #ifdef WOLFSSL_SMALL_STACK
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| 201 | XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 202 | #endif
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| 203 |
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| 204 | return ret;
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| 205 | }
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| 206 |
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| 207 |
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| 208 | int wc_Des3_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
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| 209 | const byte* key, const byte* iv)
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| 210 | {
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| 211 | int ret = 0;
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| 212 | #ifdef WOLFSSL_SMALL_STACK
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| 213 | Des3* des3;
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| 214 | #else
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| 215 | Des3 des3[1];
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| 216 | #endif
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| 217 |
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| 218 | #ifdef WOLFSSL_SMALL_STACK
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| 219 | des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 220 | if (des3 == NULL)
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| 221 | return MEMORY_E;
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| 222 | #endif
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| 223 |
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| 224 | ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
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| 225 | if (ret == 0) {
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| 226 | ret = wc_Des3_SetKey(des3, key, iv, DES_DECRYPTION);
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| 227 | if (ret == 0)
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| 228 | ret = wc_Des3_CbcDecrypt(des3, out, in, sz);
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| 229 | wc_Des3Free(des3);
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| 230 | }
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| 231 |
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| 232 | #ifdef WOLFSSL_SMALL_STACK
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| 233 | XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 234 | #endif
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| 235 |
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| 236 | return ret;
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| 237 | }
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| 238 |
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| 239 | #endif /* !NO_DES3 */
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| 240 |
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| 241 |
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[464] | 242 | #if !defined(NO_ASN) && defined(WOLFSSL_ENCRYPTED_KEYS)
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[457] | 243 |
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| 244 | int wc_BufferKeyDecrypt(EncryptedInfo* info, byte* der, word32 derSz,
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| 245 | const byte* password, int passwordSz, int hashType)
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| 246 | {
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| 247 | int ret = NOT_COMPILED_IN;
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| 248 | #ifdef WOLFSSL_SMALL_STACK
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| 249 | byte* key = NULL;
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| 250 | #else
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| 251 | byte key[WC_MAX_SYM_KEY_SIZE];
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| 252 | #endif
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| 253 |
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| 254 | (void)derSz;
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| 255 | (void)passwordSz;
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| 256 | (void)hashType;
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| 257 |
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| 258 | if (der == NULL || password == NULL || info == NULL || info->keySz == 0) {
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| 259 | return BAD_FUNC_ARG;
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| 260 | }
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| 261 |
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| 262 | /* use file's salt for key derivation, hex decode first */
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| 263 | if (Base16_Decode(info->iv, info->ivSz, info->iv, &info->ivSz) != 0) {
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| 264 | return BUFFER_E;
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| 265 | }
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| 266 | if (info->ivSz < PKCS5_SALT_SZ)
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| 267 | return BUFFER_E;
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| 268 |
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| 269 | #ifdef WOLFSSL_SMALL_STACK
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| 270 | key = (byte*)XMALLOC(WC_MAX_SYM_KEY_SIZE, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 271 | if (key == NULL) {
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| 272 | return MEMORY_E;
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| 273 | }
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| 274 | #endif
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| 275 |
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| 276 | (void)XMEMSET(key, 0, WC_MAX_SYM_KEY_SIZE);
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| 277 |
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| 278 | #ifndef NO_PWDBASED
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| 279 | if ((ret = wc_PBKDF1(key, password, passwordSz, info->iv, PKCS5_SALT_SZ, 1,
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| 280 | info->keySz, hashType)) != 0) {
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| 281 | #ifdef WOLFSSL_SMALL_STACK
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| 282 | XFREE(key, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 283 | #endif
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| 284 | return ret;
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| 285 | }
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| 286 | #endif
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| 287 |
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| 288 | #ifndef NO_DES3
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| 289 | if (info->cipherType == WC_CIPHER_DES)
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| 290 | ret = wc_Des_CbcDecryptWithKey(der, der, derSz, key, info->iv);
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| 291 | if (info->cipherType == WC_CIPHER_DES3)
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| 292 | ret = wc_Des3_CbcDecryptWithKey(der, der, derSz, key, info->iv);
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| 293 | #endif /* NO_DES3 */
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| 294 | #if !defined(NO_AES) && defined(HAVE_AES_CBC) && defined(HAVE_AES_DECRYPT)
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| 295 | if (info->cipherType == WC_CIPHER_AES_CBC)
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| 296 | ret = wc_AesCbcDecryptWithKey(der, der, derSz, key, info->keySz,
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| 297 | info->iv);
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| 298 | #endif /* !NO_AES && HAVE_AES_CBC && HAVE_AES_DECRYPT */
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| 299 |
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| 300 | #ifdef WOLFSSL_SMALL_STACK
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| 301 | XFREE(key, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 302 | #endif
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| 303 |
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| 304 | return ret;
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| 305 | }
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| 306 |
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| 307 | int wc_BufferKeyEncrypt(EncryptedInfo* info, byte* der, word32 derSz,
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| 308 | const byte* password, int passwordSz, int hashType)
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| 309 | {
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| 310 | int ret = NOT_COMPILED_IN;
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| 311 | #ifdef WOLFSSL_SMALL_STACK
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| 312 | byte* key = NULL;
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| 313 | #else
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| 314 | byte key[WC_MAX_SYM_KEY_SIZE];
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| 315 | #endif
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| 316 |
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| 317 | (void)derSz;
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| 318 | (void)passwordSz;
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| 319 | (void)hashType;
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| 320 |
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| 321 | if (der == NULL || password == NULL || info == NULL || info->keySz == 0 ||
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| 322 | info->ivSz < PKCS5_SALT_SZ) {
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| 323 | return BAD_FUNC_ARG;
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| 324 | }
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| 325 |
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| 326 | #ifdef WOLFSSL_SMALL_STACK
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| 327 | key = (byte*)XMALLOC(WC_MAX_SYM_KEY_SIZE, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 328 | if (key == NULL) {
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| 329 | return MEMORY_E;
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| 330 | }
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| 331 | #endif /* WOLFSSL_SMALL_STACK */
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| 332 |
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| 333 | (void)XMEMSET(key, 0, WC_MAX_SYM_KEY_SIZE);
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| 334 |
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| 335 | #ifndef NO_PWDBASED
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| 336 | if ((ret = wc_PBKDF1(key, password, passwordSz, info->iv, PKCS5_SALT_SZ, 1,
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| 337 | info->keySz, hashType)) != 0) {
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| 338 | #ifdef WOLFSSL_SMALL_STACK
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| 339 | XFREE(key, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 340 | #endif
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| 341 | return ret;
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| 342 | }
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| 343 | #endif
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| 344 |
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| 345 | #ifndef NO_DES3
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| 346 | if (info->cipherType == WC_CIPHER_DES)
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| 347 | ret = wc_Des_CbcEncryptWithKey(der, der, derSz, key, info->iv);
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| 348 | if (info->cipherType == WC_CIPHER_DES3)
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| 349 | ret = wc_Des3_CbcEncryptWithKey(der, der, derSz, key, info->iv);
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| 350 | #endif /* NO_DES3 */
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| 351 | #if !defined(NO_AES) && defined(HAVE_AES_CBC)
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| 352 | if (info->cipherType == WC_CIPHER_AES_CBC)
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| 353 | ret = wc_AesCbcEncryptWithKey(der, der, derSz, key, info->keySz,
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| 354 | info->iv);
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| 355 | #endif /* !NO_AES && HAVE_AES_CBC */
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| 356 |
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| 357 | #ifdef WOLFSSL_SMALL_STACK
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| 358 | XFREE(key, NULL, DYNAMIC_TYPE_SYMMETRIC_KEY);
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| 359 | #endif
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| 360 |
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| 361 | return ret;
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| 362 | }
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| 363 |
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[464] | 364 | #endif /* !NO_ASN && WOLFSSL_ENCRYPTED_KEYS */
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[457] | 365 |
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| 366 |
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| 367 | #if !defined(NO_PWDBASED) && !defined(NO_ASN)
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| 368 |
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| 369 | #if defined(HAVE_PKCS8) || defined(HAVE_PKCS12)
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| 370 | /* Decrypt/Encrypt input in place from parameters based on id
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| 371 | *
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| 372 | * returns a negative value on fail case
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| 373 | */
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| 374 | int wc_CryptKey(const char* password, int passwordSz, byte* salt,
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| 375 | int saltSz, int iterations, int id, byte* input,
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| 376 | int length, int version, byte* cbcIv, int enc, int shaOid)
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| 377 | {
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[464] | 378 | int typeH = WC_HASH_TYPE_NONE;
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[457] | 379 | int derivedLen = 0;
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| 380 | int ret = 0;
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| 381 | #ifdef WOLFSSL_SMALL_STACK
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| 382 | byte* key;
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| 383 | #else
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| 384 | byte key[MAX_KEY_SIZE];
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| 385 | #endif
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| 386 |
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| 387 | (void)input;
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| 388 | (void)length;
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| 389 | (void)enc;
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| 390 |
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| 391 | WOLFSSL_ENTER("wc_CryptKey");
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| 392 |
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| 393 | switch (id) {
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| 394 | #ifndef NO_DES3
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| 395 | #ifndef NO_MD5
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| 396 | case PBE_MD5_DES:
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| 397 | typeH = WC_MD5;
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| 398 | derivedLen = 16; /* may need iv for v1.5 */
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| 399 | break;
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| 400 | #endif
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| 401 | #ifndef NO_SHA
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| 402 | case PBE_SHA1_DES:
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| 403 | typeH = WC_SHA;
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| 404 | derivedLen = 16; /* may need iv for v1.5 */
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| 405 | break;
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| 406 |
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| 407 | case PBE_SHA1_DES3:
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| 408 | switch(shaOid) {
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| 409 | case HMAC_SHA256_OID:
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| 410 | typeH = WC_SHA256;
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| 411 | derivedLen = 32;
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| 412 | break;
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| 413 | default:
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| 414 | typeH = WC_SHA;
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| 415 | derivedLen = 32; /* may need iv for v1.5 */
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| 416 | break;
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| 417 | }
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| 418 | break;
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| 419 | #endif /* !NO_SHA */
|
---|
| 420 | #endif /* !NO_DES3 */
|
---|
| 421 | #if !defined(NO_SHA) && !defined(NO_RC4)
|
---|
| 422 | case PBE_SHA1_RC4_128:
|
---|
| 423 | typeH = WC_SHA;
|
---|
| 424 | derivedLen = 16;
|
---|
| 425 | break;
|
---|
| 426 | #endif
|
---|
| 427 | #if defined(WOLFSSL_AES_256)
|
---|
| 428 | case PBE_AES256_CBC:
|
---|
| 429 | switch(shaOid) {
|
---|
| 430 | case HMAC_SHA256_OID:
|
---|
| 431 | typeH = WC_SHA256;
|
---|
| 432 | derivedLen = 32;
|
---|
| 433 | break;
|
---|
| 434 | #ifndef NO_SHA
|
---|
| 435 | default:
|
---|
| 436 | typeH = WC_SHA;
|
---|
| 437 | derivedLen = 32;
|
---|
| 438 | break;
|
---|
| 439 | #endif
|
---|
| 440 | }
|
---|
| 441 | break;
|
---|
| 442 | #endif /* WOLFSSL_AES_256 && !NO_SHA */
|
---|
| 443 | #if defined(WOLFSSL_AES_128)
|
---|
| 444 | case PBE_AES128_CBC:
|
---|
| 445 | switch(shaOid) {
|
---|
| 446 | case HMAC_SHA256_OID:
|
---|
| 447 | typeH = WC_SHA256;
|
---|
| 448 | derivedLen = 16;
|
---|
| 449 | break;
|
---|
| 450 | #ifndef NO_SHA
|
---|
| 451 | default:
|
---|
| 452 | typeH = WC_SHA;
|
---|
| 453 | derivedLen = 16;
|
---|
| 454 | break;
|
---|
| 455 | #endif
|
---|
| 456 | }
|
---|
| 457 | break;
|
---|
| 458 | #endif /* WOLFSSL_AES_128 && !NO_SHA */
|
---|
[464] | 459 | #ifdef WC_RC2
|
---|
| 460 | case PBE_SHA1_40RC2_CBC:
|
---|
| 461 | typeH = WC_SHA;
|
---|
| 462 | derivedLen = 5;
|
---|
| 463 | break;
|
---|
| 464 | #endif
|
---|
[457] | 465 | default:
|
---|
| 466 | WOLFSSL_MSG("Unknown/Unsupported encrypt/decrypt id");
|
---|
| 467 | (void)shaOid;
|
---|
| 468 | return ALGO_ID_E;
|
---|
| 469 | }
|
---|
| 470 |
|
---|
| 471 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 472 | key = (byte*)XMALLOC(MAX_KEY_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 473 | if (key == NULL)
|
---|
| 474 | return MEMORY_E;
|
---|
| 475 | #endif
|
---|
| 476 |
|
---|
| 477 | if (version == PKCS5v2)
|
---|
| 478 | ret = wc_PBKDF2(key, (byte*)password, passwordSz,
|
---|
| 479 | salt, saltSz, iterations, derivedLen, typeH);
|
---|
| 480 | #ifndef NO_SHA
|
---|
| 481 | else if (version == PKCS5)
|
---|
| 482 | ret = wc_PBKDF1(key, (byte*)password, passwordSz,
|
---|
| 483 | salt, saltSz, iterations, derivedLen, typeH);
|
---|
| 484 | #endif
|
---|
| 485 | #ifdef HAVE_PKCS12
|
---|
| 486 | else if (version == PKCS12v1) {
|
---|
| 487 | int i, idx = 0;
|
---|
| 488 | byte unicodePasswd[MAX_UNICODE_SZ];
|
---|
| 489 |
|
---|
| 490 | if ( (passwordSz * 2 + 2) > (int)sizeof(unicodePasswd)) {
|
---|
| 491 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 492 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 493 | #endif
|
---|
| 494 | return UNICODE_SIZE_E;
|
---|
| 495 | }
|
---|
| 496 |
|
---|
| 497 | for (i = 0; i < passwordSz; i++) {
|
---|
| 498 | unicodePasswd[idx++] = 0x00;
|
---|
| 499 | unicodePasswd[idx++] = (byte)password[i];
|
---|
| 500 | }
|
---|
| 501 | /* add trailing NULL */
|
---|
| 502 | unicodePasswd[idx++] = 0x00;
|
---|
| 503 | unicodePasswd[idx++] = 0x00;
|
---|
| 504 |
|
---|
| 505 | ret = wc_PKCS12_PBKDF(key, unicodePasswd, idx, salt, saltSz,
|
---|
| 506 | iterations, derivedLen, typeH, 1);
|
---|
| 507 | if (id != PBE_SHA1_RC4_128)
|
---|
| 508 | ret += wc_PKCS12_PBKDF(cbcIv, unicodePasswd, idx, salt, saltSz,
|
---|
| 509 | iterations, 8, typeH, 2);
|
---|
| 510 | }
|
---|
| 511 | #endif /* HAVE_PKCS12 */
|
---|
| 512 | else {
|
---|
| 513 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 514 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 515 | #endif
|
---|
| 516 | WOLFSSL_MSG("Unknown/Unsupported PKCS version");
|
---|
| 517 | return ALGO_ID_E;
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 | if (ret != 0) {
|
---|
| 521 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 522 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 523 | #endif
|
---|
| 524 | return ret;
|
---|
| 525 | }
|
---|
| 526 |
|
---|
| 527 | switch (id) {
|
---|
| 528 | #ifndef NO_DES3
|
---|
| 529 | #if !defined(NO_SHA) || !defined(NO_MD5)
|
---|
| 530 | case PBE_MD5_DES:
|
---|
| 531 | case PBE_SHA1_DES:
|
---|
| 532 | {
|
---|
| 533 | Des des;
|
---|
| 534 | byte* desIv = key + 8;
|
---|
| 535 |
|
---|
| 536 | if (version == PKCS5v2 || version == PKCS12v1)
|
---|
| 537 | desIv = cbcIv;
|
---|
| 538 |
|
---|
| 539 | if (enc) {
|
---|
| 540 | ret = wc_Des_SetKey(&des, key, desIv, DES_ENCRYPTION);
|
---|
| 541 | }
|
---|
| 542 | else {
|
---|
| 543 | ret = wc_Des_SetKey(&des, key, desIv, DES_DECRYPTION);
|
---|
| 544 | }
|
---|
| 545 | if (ret != 0) {
|
---|
| 546 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 547 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 548 | #endif
|
---|
| 549 | return ret;
|
---|
| 550 | }
|
---|
| 551 |
|
---|
| 552 | if (enc) {
|
---|
| 553 | wc_Des_CbcEncrypt(&des, input, input, length);
|
---|
| 554 | }
|
---|
| 555 | else {
|
---|
| 556 | wc_Des_CbcDecrypt(&des, input, input, length);
|
---|
| 557 | }
|
---|
| 558 | break;
|
---|
| 559 | }
|
---|
| 560 | #endif /* !NO_SHA || !NO_MD5 */
|
---|
| 561 |
|
---|
| 562 | #ifndef NO_SHA
|
---|
| 563 | case PBE_SHA1_DES3:
|
---|
| 564 | {
|
---|
| 565 | Des3 des;
|
---|
| 566 | byte* desIv = key + 24;
|
---|
| 567 |
|
---|
| 568 | if (version == PKCS5v2 || version == PKCS12v1)
|
---|
| 569 | desIv = cbcIv;
|
---|
| 570 |
|
---|
| 571 | ret = wc_Des3Init(&des, NULL, INVALID_DEVID);
|
---|
| 572 | if (ret != 0) {
|
---|
| 573 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 574 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 575 | #endif
|
---|
| 576 | return ret;
|
---|
| 577 | }
|
---|
| 578 | if (enc) {
|
---|
| 579 | ret = wc_Des3_SetKey(&des, key, desIv, DES_ENCRYPTION);
|
---|
| 580 | }
|
---|
| 581 | else {
|
---|
| 582 | ret = wc_Des3_SetKey(&des, key, desIv, DES_DECRYPTION);
|
---|
| 583 | }
|
---|
| 584 | if (ret != 0) {
|
---|
| 585 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 586 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 587 | #endif
|
---|
| 588 | return ret;
|
---|
| 589 | }
|
---|
| 590 | if (enc) {
|
---|
| 591 | ret = wc_Des3_CbcEncrypt(&des, input, input, length);
|
---|
| 592 | }
|
---|
| 593 | else {
|
---|
| 594 | ret = wc_Des3_CbcDecrypt(&des, input, input, length);
|
---|
| 595 | }
|
---|
| 596 | if (ret != 0) {
|
---|
| 597 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 598 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 599 | #endif
|
---|
| 600 | return ret;
|
---|
| 601 | }
|
---|
| 602 | break;
|
---|
| 603 | }
|
---|
| 604 | #endif /* !NO_SHA */
|
---|
| 605 | #endif
|
---|
| 606 | #if !defined(NO_RC4) && !defined(NO_SHA)
|
---|
| 607 | case PBE_SHA1_RC4_128:
|
---|
| 608 | {
|
---|
| 609 | Arc4 dec;
|
---|
| 610 |
|
---|
| 611 | wc_Arc4SetKey(&dec, key, derivedLen);
|
---|
| 612 | wc_Arc4Process(&dec, input, input, length);
|
---|
| 613 | break;
|
---|
| 614 | }
|
---|
| 615 | #endif
|
---|
| 616 | #if !defined(NO_AES) && defined(HAVE_AES_CBC)
|
---|
| 617 | #ifdef WOLFSSL_AES_256
|
---|
| 618 | case PBE_AES256_CBC:
|
---|
| 619 | case PBE_AES128_CBC:
|
---|
| 620 | {
|
---|
[464] | 621 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 622 | Aes *aes;
|
---|
| 623 | aes = (Aes *)XMALLOC(sizeof *aes, NULL, DYNAMIC_TYPE_AES);
|
---|
| 624 | if (aes == NULL)
|
---|
| 625 | return MEMORY_E;
|
---|
| 626 | #else
|
---|
| 627 | Aes aes[1];
|
---|
| 628 | #endif
|
---|
| 629 | ret = wc_AesInit(aes, NULL, INVALID_DEVID);
|
---|
[457] | 630 | if (ret == 0) {
|
---|
| 631 | if (enc) {
|
---|
[464] | 632 | ret = wc_AesSetKey(aes, key, derivedLen, cbcIv,
|
---|
[457] | 633 | AES_ENCRYPTION);
|
---|
| 634 | }
|
---|
| 635 | else {
|
---|
[464] | 636 | ret = wc_AesSetKey(aes, key, derivedLen, cbcIv,
|
---|
[457] | 637 | AES_DECRYPTION);
|
---|
| 638 | }
|
---|
| 639 | }
|
---|
| 640 | if (ret == 0) {
|
---|
| 641 | if (enc)
|
---|
[464] | 642 | ret = wc_AesCbcEncrypt(aes, input, input, length);
|
---|
[457] | 643 | else
|
---|
[464] | 644 | ret = wc_AesCbcDecrypt(aes, input, input, length);
|
---|
[457] | 645 | }
|
---|
[464] | 646 | ForceZero(aes, sizeof(Aes));
|
---|
| 647 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 648 | XFREE(aes, NULL, DYNAMIC_TYPE_AES);
|
---|
| 649 | #endif
|
---|
[457] | 650 | if (ret != 0) {
|
---|
| 651 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 652 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 653 | #endif
|
---|
| 654 | return ret;
|
---|
| 655 | }
|
---|
| 656 | break;
|
---|
| 657 | }
|
---|
| 658 | #endif /* WOLFSSL_AES_256 */
|
---|
| 659 | #endif /* !NO_AES && HAVE_AES_CBC */
|
---|
[464] | 660 | #ifdef WC_RC2
|
---|
| 661 | case PBE_SHA1_40RC2_CBC:
|
---|
| 662 | {
|
---|
| 663 | Rc2 rc2;
|
---|
| 664 | /* effective key size for RC2-40-CBC is 40 bits */
|
---|
| 665 | ret = wc_Rc2SetKey(&rc2, key, derivedLen, cbcIv, 40);
|
---|
| 666 | if (ret == 0) {
|
---|
| 667 | if (enc)
|
---|
| 668 | ret = wc_Rc2CbcEncrypt(&rc2, input, input, length);
|
---|
| 669 | else
|
---|
| 670 | ret = wc_Rc2CbcDecrypt(&rc2, input, input, length);
|
---|
| 671 | }
|
---|
| 672 | if (ret != 0) {
|
---|
| 673 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 674 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 675 | #endif
|
---|
| 676 | return ret;
|
---|
| 677 | }
|
---|
| 678 | ForceZero(&rc2, sizeof(Rc2));
|
---|
| 679 | break;
|
---|
| 680 | }
|
---|
| 681 | #endif
|
---|
[457] | 682 |
|
---|
| 683 | default:
|
---|
| 684 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 685 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 686 | #endif
|
---|
| 687 | WOLFSSL_MSG("Unknown/Unsupported encrypt/decryption algorithm");
|
---|
| 688 | return ALGO_ID_E;
|
---|
| 689 | }
|
---|
| 690 |
|
---|
| 691 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 692 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 693 | #endif
|
---|
| 694 |
|
---|
| 695 | return ret;
|
---|
| 696 | }
|
---|
| 697 |
|
---|
| 698 | #endif /* HAVE_PKCS8 || HAVE_PKCS12 */
|
---|
| 699 | #endif /* !NO_PWDBASED */
|
---|