wolfssl/cyassl/ctaocrypt/hmac.h
2013-01-29 16:22:49 -08:00

129 lines
3.2 KiB
C

/* hmac.h
*
* Copyright (C) 2006-2012 Sawtooth Consulting Ltd.
*
* This file is part of CyaSSL.
*
* CyaSSL 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 2 of the License, or
* (at your option) any later version.
*
* CyaSSL 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef NO_HMAC
#ifndef CTAO_CRYPT_HMAC_H
#define CTAO_CRYPT_HMAC_H
#ifndef NO_MD5
#include <cyassl/ctaocrypt/md5.h>
#endif
#include <cyassl/ctaocrypt/sha.h>
#ifndef NO_SHA256
#include <cyassl/ctaocrypt/sha256.h>
#endif
#ifdef CYASSL_SHA384
#include <cyassl/ctaocrypt/sha512.h>
#endif
#ifdef HAVE_CAVIUM
#include <cyassl/ctaocrypt/logging.h>
#include "cavium_common.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define CYASSL_HMAC_CAVIUM_MAGIC 0xBEEF0005
enum {
IPAD = 0x36,
OPAD = 0x5C,
#ifdef NO_MD5
MD5 = 0,
#endif
#if defined(CYASSL_SHA384)
INNER_HASH_SIZE = SHA384_DIGEST_SIZE,
HMAC_BLOCK_SIZE = SHA384_BLOCK_SIZE
#elif !defined(NO_SHA256)
INNER_HASH_SIZE = SHA256_DIGEST_SIZE,
HMAC_BLOCK_SIZE = SHA256_BLOCK_SIZE,
SHA384 = 5
#else
INNER_HASH_SIZE = SHA_DIGEST_SIZE,
HMAC_BLOCK_SIZE = SHA_BLOCK_SIZE,
SHA256 = 2, /* hash type unique */
SHA384 = 5
#endif
};
/* hash union */
typedef union {
#ifndef NO_MD5
Md5 md5;
#endif
Sha sha;
#ifndef NO_SHA256
Sha256 sha256;
#endif
#ifdef CYASSL_SHA384
Sha384 sha384;
#endif
} Hash;
/* Hmac digest */
typedef struct Hmac {
Hash hash;
word32 ipad[HMAC_BLOCK_SIZE / sizeof(word32)]; /* same block size all*/
word32 opad[HMAC_BLOCK_SIZE / sizeof(word32)];
word32 innerHash[INNER_HASH_SIZE / sizeof(word32)]; /* max size */
byte macType; /* md5 sha or sha256 */
byte innerHashKeyed; /* keyed flag */
#ifdef HAVE_CAVIUM
word16 keyLen; /* hmac key length */
word16 dataLen;
HashType type; /* hmac key type */
int devId; /* nitrox device id */
word32 magic; /* using cavium magic */
word64 contextHandle; /* nitrox context memory handle */
byte* data; /* buffered input data for one call */
#endif
} Hmac;
/* does init */
CYASSL_API void HmacSetKey(Hmac*, int type, const byte* key, word32 keySz);
CYASSL_API void HmacUpdate(Hmac*, const byte*, word32);
CYASSL_API void HmacFinal(Hmac*, byte*);
#ifdef HAVE_CAVIUM
CYASSL_API int HmacInitCavium(Hmac*, int);
CYASSL_API void HmacFreeCavium(Hmac*);
#endif
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* CTAO_CRYPT_HMAC_H */
#endif /* NO_HMAC */