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/* blake2.h
*
* Copyright (C) 2006-2020 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL 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.
*
* wolfSSL 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
/*!
\file wolfssl/wolfcrypt/blake2.h
*/
#ifndef WOLF_CRYPT_BLAKE2_H
#define WOLF_CRYPT_BLAKE2_H
#include <wolfssl/wolfcrypt/settings.h>
#if defined(HAVE_BLAKE2) || defined(HAVE_BLAKE2S)
#include <wolfssl/wolfcrypt/blake2-int.h>
/* call old functions if using fips for the sake of hmac @wc_fips */
#ifdef HAVE_FIPS
/* Since hmac can call blake functions provide original calls */
#define wc_InitBlake2b InitBlake2b
#define wc_Blake2bUpdate Blake2bUpdate
#define wc_Blake2bFinal Blake2bFinal
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* in bytes, variable digest size up to 512 bits (64 bytes) */
enum {
#ifdef HAVE_BLAKE2B
BLAKE2B_ID = WC_HASH_TYPE_BLAKE2B,
BLAKE2B_256 = 32, /* 256 bit type, SSL default */
#endif
#ifdef HAVE_BLAKE2S
BLAKE2S_ID = WC_HASH_TYPE_BLAKE2S,
BLAKE2S_256 = 32 /* 256 bit type */
#endif
};
#ifdef HAVE_BLAKE2B
/* BLAKE2b digest */
typedef struct Blake2b {
blake2b_state S[1]; /* our state */
word32 digestSz; /* digest size used on init */
} Blake2b;
#endif
#ifdef HAVE_BLAKE2S
/* BLAKE2s digest */
typedef struct Blake2s {
blake2s_state S[1]; /* our state */
word32 digestSz; /* digest size used on init */
} Blake2s;
#endif
#ifdef HAVE_BLAKE2B
WOLFSSL_API int wc_InitBlake2b(Blake2b*, word32);
WOLFSSL_API int wc_Blake2bUpdate(Blake2b*, const byte*, word32);
WOLFSSL_API int wc_Blake2bFinal(Blake2b*, byte*, word32);
#endif
#ifdef HAVE_BLAKE2S
WOLFSSL_API int wc_InitBlake2s(Blake2s*, word32);
WOLFSSL_API int wc_Blake2sUpdate(Blake2s*, const byte*, word32);
WOLFSSL_API int wc_Blake2sFinal(Blake2s*, byte*, word32);
#endif
#ifdef __cplusplus
}
#endif
#endif /* HAVE_BLAKE2 || HAVE_BLAKE2S */
#endif /* WOLF_CRYPT_BLAKE2_H */
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