60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/* $NetBSD: gmac.h,v 1.2 2011/06/09 14:47:42 drochner Exp $ */
|
|
/* OpenBSD: gmac.h,v 1.1 2010/09/22 11:54:23 mikeb Exp */
|
|
|
|
/*
|
|
* Copyright (c) 2010 Mike Belopuhov <mike@vantronix.net>
|
|
*
|
|
* 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 _GMAC_H_
|
|
#define _GMAC_H_
|
|
|
|
#include <crypto/rijndael/rijndael.h>
|
|
|
|
#define GMAC_BLOCK_LEN 16
|
|
#define GMAC_DIGEST_LEN 16
|
|
|
|
#ifdef _LP64
|
|
#define GMAC_INT uint64_t
|
|
#define GMAC_INTLEN 8
|
|
#else
|
|
#define GMAC_INT uint32_t
|
|
#define GMAC_INTLEN 4
|
|
#endif
|
|
|
|
typedef struct _GHASH_CTX {
|
|
GMAC_INT H[GMAC_BLOCK_LEN/GMAC_INTLEN]; /* hash subkey */
|
|
GMAC_INT S[GMAC_BLOCK_LEN/GMAC_INTLEN]; /* state */
|
|
GMAC_INT Z[GMAC_BLOCK_LEN/GMAC_INTLEN]; /* initial state */
|
|
} GHASH_CTX;
|
|
|
|
typedef struct _AES_GMAC_CTX {
|
|
GHASH_CTX ghash;
|
|
uint32_t K[4*(RIJNDAEL_MAXNR + 1)];
|
|
uint8_t J[GMAC_BLOCK_LEN]; /* counter block */
|
|
int rounds;
|
|
} AES_GMAC_CTX;
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__BEGIN_DECLS
|
|
void AES_GMAC_Init(AES_GMAC_CTX *);
|
|
void AES_GMAC_Setkey(AES_GMAC_CTX *, const uint8_t *, uint16_t);
|
|
void AES_GMAC_Reinit(AES_GMAC_CTX *, const uint8_t *, uint16_t);
|
|
int AES_GMAC_Update(AES_GMAC_CTX *, const uint8_t *, uint16_t);
|
|
void AES_GMAC_Final(uint8_t [GMAC_DIGEST_LEN], AES_GMAC_CTX *);
|
|
__END_DECLS
|
|
|
|
#endif /* _GMAC_H_ */
|