56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
|
/*-
|
||
|
|
* Copyright (c) 2014 The FreeBSD Foundation
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This software was developed by John-Mark Gurney under
|
||
|
|
* the sponsorship of the FreeBSD Foundation and
|
||
|
|
* Rubicon Communications, LLC (Netgate).
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* $FreeBSD$
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _GMAC_H_
|
||
|
|
|
||
|
|
#include "gfmult.h"
|
||
|
|
#include <crypto/rijndael/rijndael.h>
|
||
|
|
|
||
|
|
#define GMAC_BLOCK_LEN 16
|
||
|
|
#define GMAC_DIGEST_LEN 16
|
||
|
|
|
||
|
|
struct aes_gmac_ctx {
|
||
|
|
struct gf128table4 ghashtbl;
|
||
|
|
struct gf128 hash;
|
||
|
|
uint32_t keysched[4*(RIJNDAEL_MAXNR + 1)];
|
||
|
|
uint8_t counter[GMAC_BLOCK_LEN];
|
||
|
|
int rounds;
|
||
|
|
};
|
||
|
|
|
||
|
|
void AES_GMAC_Init(struct aes_gmac_ctx *);
|
||
|
|
void AES_GMAC_Setkey(struct aes_gmac_ctx *, const uint8_t *, uint16_t);
|
||
|
|
void AES_GMAC_Reinit(struct aes_gmac_ctx *, const uint8_t *, uint16_t);
|
||
|
|
int AES_GMAC_Update(struct aes_gmac_ctx *, const uint8_t *, uint16_t);
|
||
|
|
void AES_GMAC_Final(uint8_t [GMAC_DIGEST_LEN], struct aes_gmac_ctx *);
|
||
|
|
|
||
|
|
#endif /* _GMAC_H_ */
|