incubator-nuttx/include/crypto/aes.h

56 lines
2.2 KiB
C

/****************************************************************************
* include/crypto/aes.h
* $OpenBSD: aes.h,v 1.4 2020/07/22 13:54:30 tobhe Exp $
*
* Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
* Copyright (c) 2016 Mike Belopuhov
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
****************************************************************************/
#ifndef __INCLUDE_CRYPTO_AES_H
#define __INCLUDE_CRYPTO_AES_H
#ifndef AES_MAXROUNDS
# define AES_MAXROUNDS (14)
#endif
typedef struct aes_ctx
{
uint32_t sk[60];
uint32_t sk_exp[120];
unsigned num_rounds;
} AES_CTX;
int aes_setkey(FAR AES_CTX *, FAR const uint8_t *, int);
void aes_encrypt(FAR AES_CTX *, FAR const uint8_t *, FAR uint8_t *);
void aes_decrypt(FAR AES_CTX *, FAR const uint8_t *, FAR uint8_t *);
void aes_encrypt_ecb(FAR AES_CTX *, FAR const uint8_t *, FAR uint8_t *,
size_t);
void aes_decrypt_ecb(FAR AES_CTX *, FAR const uint8_t *, FAR uint8_t *,
size_t);
int aes_keysetup_encrypt(FAR uint32_t *, FAR const uint8_t *, int);
int aes_keysetup_decrypt(FAR uint32_t *, FAR const uint8_t *, int);
#endif /* __INCLUDE_CRYPTO_AES_H */