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/*
AES-CMAC-128 (rfc 4493)
Copyright (C) Stefan Metzmacher 2012
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIB_CRYPTO_AES_CMAC_128_H
#define LIB_CRYPTO_AES_CMAC_128_H
struct aes_cmac_128_context {
AES_KEY aes_key;
uint64_t __align;
uint8_t K1[AES_BLOCK_SIZE];
uint8_t K2[AES_BLOCK_SIZE];
uint8_t L[AES_BLOCK_SIZE];
uint8_t X[AES_BLOCK_SIZE];
uint8_t Y[AES_BLOCK_SIZE];
uint8_t tmp[AES_BLOCK_SIZE];
uint8_t last[AES_BLOCK_SIZE];
size_t last_len;
};
void aes_cmac_128_init(struct aes_cmac_128_context *ctx,
const uint8_t K[AES_BLOCK_SIZE]);
void aes_cmac_128_update(struct aes_cmac_128_context *ctx,
const uint8_t *_msg, size_t _msg_len);
void aes_cmac_128_final(struct aes_cmac_128_context *ctx,
uint8_t T[AES_BLOCK_SIZE]);
#endif /* LIB_CRYPTO_AES_CMAC_128_H */
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