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jh-hash-4way.h
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jh-hash-4way.h
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/* $Id: sph_jh.h 216 2010-06-08 09:46:57Z tp $ */
/**
* JH interface. JH is a family of functions which differ by
* their output size; this implementation defines JH for output
* sizes 224, 256, 384 and 512 bits.
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @file sph_jh.h
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#ifndef JH_HASH_4WAY_H__
#define JH_HASH_4WAY_H__
#ifdef __AVX2__
#ifdef __cplusplus
extern "C"{
#endif
#include <stddef.h>
#include "algo/sha/sph_types.h"
#include "simd-utils.h"
#define SPH_SIZE_jh256 256
#define SPH_SIZE_jh512 512
/**
* This structure is a context for JH computations: it contains the
* intermediate values and some data from the last entered block. Once
* a JH computation has been performed, the context can be reused for
* another computation.
*
* The contents of this structure are private. A running JH computation
* can be cloned by copying the context (e.g. with a simple
* <code>memcpy()</code>).
*/
typedef struct {
__m256i buf[8] __attribute__ ((aligned (64)));
__m256i H[16];
size_t ptr;
uint64_t block_count;
/*
unsigned char buf[64];
size_t ptr;
union {
sph_u64 wide[16];
} H;
sph_u64 block_count;
*/
} jh_4way_context;
typedef jh_4way_context jh256_4way_context;
typedef jh_4way_context jh512_4way_context;
void jh256_4way_init(void *cc);
void jh256_4way(void *cc, const void *data, size_t len);
void jh256_4way_close(void *cc, void *dst);
void jh512_4way_init(void *cc);
void jh512_4way(void *cc, const void *data, size_t len);
void jh512_4way_close(void *cc, void *dst);
#ifdef __cplusplus
}
#endif
#endif
#endif