/*
 *  Copyright (C) 2021 - This file is part of libecc project
 *
 *  Authors:
 *      Ryad BENADJILA <ryadbenadjila@gmail.com>
 *      Arnaud EBALARD <arnaud.ebalard@ssi.gouv.fr>
 *
 *  This software is licensed under a dual BSD and GPL v2 license.
 *  See LICENSE file at the root folder of the project.
 */
#include <libecc/lib_ecc_config.h>
#ifdef WITH_HASH_STREEBOG256

#ifndef __STREEBOG256_H__
#define __STREEBOG256_H__

#include <libecc/words/words.h>
#include <libecc/utils/utils.h>
#include <libecc/hash/streebog.h>

#define STREEBOG256_BLOCK_SIZE   STREEBOG_BLOCK_SIZE
#define STREEBOG256_DIGEST_SIZE  32
#define STREEBOG256_DIGEST_SIZE_BITS  256

/* Compute max hash digest and block sizes */
#ifndef MAX_DIGEST_SIZE
#define MAX_DIGEST_SIZE 0
#endif
#if (MAX_DIGEST_SIZE < STREEBOG256_DIGEST_SIZE)
#undef MAX_DIGEST_SIZE
#define MAX_DIGEST_SIZE STREEBOG256_DIGEST_SIZE
#endif

#ifndef MAX_DIGEST_SIZE_BITS
#define MAX_DIGEST_SIZE_BITS    0
#endif
#if (MAX_DIGEST_SIZE_BITS < STREEBOG256_DIGEST_SIZE_BITS)
#undef MAX_DIGEST_SIZE_BITS
#define MAX_DIGEST_SIZE_BITS STREEBOG256_DIGEST_SIZE_BITS
#endif

#ifndef MAX_BLOCK_SIZE
#define MAX_BLOCK_SIZE  0
#endif
#if (MAX_BLOCK_SIZE < STREEBOG256_BLOCK_SIZE)
#undef MAX_BLOCK_SIZE
#define MAX_BLOCK_SIZE STREEBOG256_BLOCK_SIZE
#endif

#define STREEBOG256_HASH_MAGIC ((word_t)(0x11221a2122328332ULL))
#define STREEBOG256_HASH_CHECK_INITIALIZED(A, ret, err) \
        MUST_HAVE((((void *)(A)) != NULL) && ((A)->magic == STREEBOG256_HASH_MAGIC) && \
                  ((A)->streebog_digest_size == STREEBOG256_DIGEST_SIZE) && ((A)->streebog_block_size == STREEBOG256_BLOCK_SIZE), ret, err)

typedef streebog_context streebog256_context;

ATTRIBUTE_WARN_UNUSED_RET int streebog256_init(streebog256_context *ctx);
ATTRIBUTE_WARN_UNUSED_RET int streebog256_update(streebog256_context *ctx, const u8 *input, u32 ilen);
ATTRIBUTE_WARN_UNUSED_RET int streebog256_final(streebog256_context *ctx, u8 output[STREEBOG256_DIGEST_SIZE]);
ATTRIBUTE_WARN_UNUSED_RET int streebog256_scattered(const u8 **inputs, const u32 *ilens,
                           u8 output[STREEBOG256_DIGEST_SIZE]);
ATTRIBUTE_WARN_UNUSED_RET int streebog256(const u8 *input, u32 ilen, u8 output[STREEBOG256_DIGEST_SIZE]);

#endif /* __STREEBOG256_H__ */
#endif /* WITH_HASH_STREEBOG256 */