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116 lines
3.9 KiB
C
116 lines
3.9 KiB
C
/* $Id: sph_haval.h 218 2010-06-08 17:06:34Z tp $ */
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/**
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* HAVAL interface.
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*
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* HAVAL is actually a family of 15 hash functions, depending on whether
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* the internal computation uses 3, 4 or 5 passes, and on the output
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* length, which is 128, 160, 192, 224 or 256 bits. This implementation
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* provides interface functions for all 15, which internally map to
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* three cores (depending on the number of passes). Note that output
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* lengths other than 256 bits are not obtained by a simple truncation
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* of a longer result; the requested length is encoded within the
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* padding data.
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*
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* HAVAL was published in: Yuliang Zheng, Josef Pieprzyk and Jennifer
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* Seberry: "HAVAL -- a one-way hashing algorithm with variable length
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* of output", Advances in Cryptology -- AUSCRYPT'92, Lecture Notes in
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* Computer Science, Vol.718, pp.83-104, Springer-Verlag, 1993.
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*
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* This paper, and a reference implementation, are available on the
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* Calyptix web site: http://labs.calyptix.com/haval.php
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*
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* The HAVAL reference paper is quite unclear on the data encoding
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* details, i.e. endianness (both byte order within a 32-bit word, and
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* word order within a message block). This implementation has been
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* made compatible with the reference implementation referenced above.
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*
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* @warning A collision for HAVAL-128/3 (HAVAL with three passes and
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* 128-bit output) has been published; this function is thus considered
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* as cryptographically broken. The status for other variants is unclear;
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* use only with care.
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*
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* ==========================(LICENSE BEGIN)============================
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*
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* Copyright (c) 2007-2010 Projet RNRT SAPHIR
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* ===========================(LICENSE END)=============================
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*
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* @file sph_haval.h
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* @author Thomas Pornin <thomas.pornin@cryptolog.com>
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*/
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#ifndef HAVAL_HASH_4WAY_H__
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#define HAVAL_HASH_4WAY_H__ 1
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#if defined(__AVX__)
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#ifdef __cplusplus
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extern "C"{
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#endif
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#include <stddef.h>
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#include "algo/sha/sph_types.h"
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#include "simd-utils.h"
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#define SPH_SIZE_haval256_5 256
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typedef struct {
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__m128i buf[32];
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__m128i s0, s1, s2, s3, s4, s5, s6, s7;
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unsigned olen, passes;
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sph_u32 count_high, count_low;
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} haval_4way_context;
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typedef haval_4way_context haval256_5_4way_context;
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void haval256_5_4way_init( void *cc );
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void haval256_5_4way_update( void *cc, const void *data, size_t len );
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#define haval256_5_4way haval256_5_4way_update
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void haval256_5_4way_close( void *cc, void *dst );
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#if defined(__AVX2__)
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typedef struct {
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__m256i buf[32];
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__m256i s0, s1, s2, s3, s4, s5, s6, s7;
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unsigned olen, passes;
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uint32_t count_high, count_low;
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} haval_8way_context __attribute__ ((aligned (64)));
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typedef haval_8way_context haval256_5_8way_context;
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void haval256_5_8way_init( void *cc );
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void haval256_5_8way_update( void *cc, const void *data, size_t len );
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void haval256_5_8way_close( void *cc, void *dst );
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#endif // AVX2
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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