[457] | 1 | /* aes.h
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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 |
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| 24 | /* aes.h defines mini des openssl compatibility layer
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| 25 | *
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| 26 | */
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| 27 |
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| 28 |
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| 29 | #ifndef WOLFSSL_AES_H_
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| 30 | #define WOLFSSL_AES_H_
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| 31 |
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| 32 | #include <wolfssl/wolfcrypt/settings.h>
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| 33 |
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| 34 | #ifndef NO_AES
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| 35 | #include <wolfssl/openssl/ssl.h> /* for size_t */
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| 36 |
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| 37 | #ifdef __cplusplus
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| 38 | extern "C" {
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| 39 | #endif
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| 40 |
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| 41 | /* This structure wrapper is done because there is no aes_new function with
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| 42 | * OpenSSL compatibility layer. This makes code working with an AES structure
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| 43 | * to need the size of the structure. */
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| 44 | typedef struct WOLFSSL_AES_KEY {
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| 45 | /* aligned and big enough for Aes from wolfssl/wolfcrypt/aes.h */
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| 46 | ALIGN16 void* holder[(376 + WC_ASYNC_DEV_SIZE)/ sizeof(void*)];
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| 47 | #ifdef GCM_TABLE
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| 48 | /* key-based fast multiplication table. */
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| 49 | ALIGN16 void* M0[4096 / sizeof(void*)];
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| 50 | #endif /* GCM_TABLE */
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| 51 | #if defined(WOLFSSL_DEVCRYPTO) && \
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| 52 | (defined(WOLFSSL_DEVCRYPTO_AES) || defined(WOLFSSL_DEVCRYPTO_CBC))
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| 53 | /* large enough for additional devcrypto information */
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| 54 | void* devKey[288 / sizeof(void*)];
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| 55 | #endif
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| 56 | #ifdef WOLFSSL_AFALG
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| 57 | void* afalg_holder[288 / sizeof(void*)];
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| 58 | #endif
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| 59 | #ifdef HAVE_PKCS11
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| 60 | void* pkcs11_holder[(AES_MAX_ID_LEN + sizeof(int)) / sizeof(void*)];
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| 61 | #endif
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| 62 | #if defined(WOLFSSL_ASYNC_CRYPT) || defined(WOLF_CRYPTO_CB)
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| 63 | void* async_holder[128 / sizeof(void*)];
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| 64 | #endif
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| 65 | } WOLFSSL_AES_KEY;
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| 66 | typedef WOLFSSL_AES_KEY AES_KEY;
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| 67 |
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| 68 | WOLFSSL_API int wolfSSL_AES_set_encrypt_key
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| 69 | (const unsigned char *, const int bits, AES_KEY *);
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| 70 | WOLFSSL_API int wolfSSL_AES_set_decrypt_key
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| 71 | (const unsigned char *, const int bits, AES_KEY *);
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| 72 | WOLFSSL_API void wolfSSL_AES_cbc_encrypt
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| 73 | (const unsigned char *in, unsigned char* out, size_t len,
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| 74 | AES_KEY *key, unsigned char* iv, const int enc);
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| 75 | WOLFSSL_API void wolfSSL_AES_ecb_encrypt
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| 76 | (const unsigned char *in, unsigned char* out,
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| 77 | AES_KEY *key, const int enc);
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| 78 | WOLFSSL_API void wolfSSL_AES_cfb128_encrypt
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| 79 | (const unsigned char *in, unsigned char* out, size_t len,
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| 80 | AES_KEY *key, unsigned char* iv, int* num, const int enc);
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| 81 |
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| 82 | #define AES_cbc_encrypt wolfSSL_AES_cbc_encrypt
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| 83 | #define AES_ecb_encrypt wolfSSL_AES_ecb_encrypt
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| 84 | #define AES_cfb128_encrypt wolfSSL_AES_cfb128_encrypt
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| 85 | #define AES_set_encrypt_key wolfSSL_AES_set_encrypt_key
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| 86 | #define AES_set_decrypt_key wolfSSL_AES_set_decrypt_key
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| 87 |
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| 88 | #ifdef WOLFSSL_AES_DIRECT
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| 89 | WOLFSSL_API void wolfSSL_AES_encrypt
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| 90 | (const unsigned char* input, unsigned char* output, AES_KEY *);
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| 91 | WOLFSSL_API void wolfSSL_AES_decrypt
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| 92 | (const unsigned char* input, unsigned char* output, AES_KEY *);
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| 93 |
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| 94 | #define AES_encrypt wolfSSL_AES_encrypt
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| 95 | #define AES_decrypt wolfSSL_AES_decrypt
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| 96 | #endif /* HAVE_AES_DIRECT */
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| 97 |
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| 98 | #ifndef AES_ENCRYPT
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| 99 | #define AES_ENCRYPT AES_ENCRYPTION
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| 100 | #endif
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| 101 | #ifndef AES_DECRYPT
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| 102 | #define AES_DECRYPT AES_DECRYPTION
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| 103 | #endif
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| 104 |
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| 105 | #ifdef __cplusplus
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| 106 | } /* extern "C" */
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| 107 | #endif
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| 108 |
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| 109 | #endif /* NO_AES */
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| 110 |
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| 111 | #endif /* WOLFSSL_AES_H_ */
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