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/* $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 _AES_H_
#define _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(AES_CTX *, const uint8_t *, int);
void AES_Encrypt(AES_CTX *, const uint8_t *, uint8_t *);
void AES_Decrypt(AES_CTX *, const uint8_t *, uint8_t *);
void AES_Encrypt_ECB(AES_CTX *, const uint8_t *, uint8_t *, size_t);
void AES_Decrypt_ECB(AES_CTX *, const uint8_t *, uint8_t *, size_t);
int AES_KeySetup_Encrypt(uint32_t *, const uint8_t *, int);
int AES_KeySetup_Decrypt(uint32_t *, const uint8_t *, int);
#endif /* _AES_H_ */
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