/*
 * luffa_for_sse2.h
 * Version 2.0 (Sep 15th 2009)
 *
 * Copyright (C) 2008-2009 Hitachi, Ltd. All rights reserved.
 *
 * Hitachi, Ltd. is the owner of this software and hereby grant
 * the U.S. Government and any interested party the right to use
 * this software for the purposes of the SHA-3 evaluation process,
 * notwithstanding that this software is copyrighted.
 *
 * 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.
 */

#include <emmintrin.h>
#include "algo/sha3/sha3-defs.h"
/* The length of digests*/
#define DIGEST_BIT_LEN_224 224
#define DIGEST_BIT_LEN_256 256
#define DIGEST_BIT_LEN_384 384
#define DIGEST_BIT_LEN_512 512

/*********************************/
/* The parameters of Luffa       */
#define MSG_BLOCK_BIT_LEN 256  /*The bit length of a message block*/
#define MSG_BLOCK_BYTE_LEN (MSG_BLOCK_BIT_LEN >> 3) /* The byte length
                                                     * of a message block*/

/* The number of blocks in Luffa */
#define WIDTH_224 3
#define WIDTH_256 3
#define WIDTH_384 4
#define WIDTH_512 5

/* The limit of the length of message */
#define LIMIT_224 64
#define LIMIT_256 64
#define LIMIT_384 128
#define LIMIT_512 128
/*********************************/

typedef struct {
    uint32 buffer[8]; /* Buffer to be hashed */
    __m128i chainv[10];   /* Chaining values */
    uint64 bitlen[2]; /* Message length in bits */
    uint32 rembitlen; /* Length of buffer data to be hashed */
    int hashbitlen;
} hashState_luffa;

HashReturn init_luffa(hashState_luffa *state, int hashbitlen);
HashReturn update_luffa(hashState_luffa *state, const BitSequence *data, DataLength databitlen);
HashReturn final_luffa(hashState_luffa *state, BitSequence *hashval);