/****************************************************************************
 * include/crypto/cmac.h
 * $OpenBSD: cmac.h,v 1.3 2017/05/02 17:07:06 mikeb Exp $
 *
 * Copyright (c) 2008 Damien Bergamini <damien.bergamini@free.fr>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 ****************************************************************************/

#ifndef __INCLUDE_CRYPTO_CMAC_H_
#define __INCLUDE_CRYPTO_CMAC_H_

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <sys/types.h>

#define AES_CMAC_KEY_LENGTH     16
#define AES_CMAC_DIGEST_LENGTH  16

typedef struct _AES_CMAC_CTX
{
  AES_CTX aesctx;
  u_int8_t X[16];
  u_int8_t m_last[16];
  u_int m_n;
} AES_CMAC_CTX;

void aes_cmac_init(FAR AES_CMAC_CTX *);
void aes_cmac_setkey(FAR AES_CMAC_CTX *, FAR const u_int8_t *);
void aes_cmac_update(FAR AES_CMAC_CTX *, FAR const u_int8_t *, u_int);
void aes_cmac_final(FAR u_int8_t *, FAR AES_CMAC_CTX *);

#endif /* __INCLUDE_CRYPTO_CMAC_H_ */