/*-
 * Copyright (c) 2013 Alistair Crooks <agc@NetBSD.org>
 * All rights reserved.
 *
 * 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 ``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 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.
 */
#ifndef BLAKE2_H_
#define BLAKE2_H_	20130814

#include <inttypes.h>

#define	BLAKE2B_BLOCKBYTES 128

typedef struct BLAKE2_CTX {
	uint64_t	h[8];
	uint64_t	t[2];
	uint64_t	f[2];
	uint8_t		buf[2 * BLAKE2B_BLOCKBYTES];
	size_t		buflen;
	uint8_t		last_node;
} BLAKE2_CTX;

#ifndef __BEGIN_DECLS
#  if defined(__cplusplus)
#  define __BEGIN_DECLS           extern "C" {
#  define __END_DECLS             }
#  else
#  define __BEGIN_DECLS
#  define __END_DECLS
#  endif
#endif

__BEGIN_DECLS

int blake2b_init(BLAKE2_CTX */*state*/, const uint8_t /*outlen*/);
int blake2b_update(BLAKE2_CTX */*state*/, const uint8_t */*in*/, uint64_t /*inlen*/);
int blake2b_final(BLAKE2_CTX */*state*/, uint8_t */*out*/, uint8_t /*outlen*/);

__END_DECLS

#endif