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86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
/* $Id: sph_skein.h 253 2011-06-07 18:33:10Z tp $ */
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/**
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* Skein interface. The Skein specification defines three main
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* functions, called Skein-256, Skein-512 and Skein-1024, which can be
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* further parameterized with an output length. For the SHA-3
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* competition, Skein-512 is used for output sizes of 224, 256, 384 and
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* 512 bits; this is what this code implements. Thus, we hereafter call
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* Skein-224, Skein-256, Skein-384 and Skein-512 what the Skein
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* specification defines as Skein-512-224, Skein-512-256, Skein-512-384
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* and Skein-512-512, respectively.
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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_skein.h
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* @author Thomas Pornin <thomas.pornin@cryptolog.com>
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*/
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#ifndef __SKEIN_HASH_4WAY_H__
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#define __SKEIN_HASH_4WAY_H__ 1
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#ifdef __AVX2__
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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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// Output size in bits
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#define SPH_SIZE_skein256 256
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#define SPH_SIZE_skein512 512
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typedef struct {
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__m256i buf[8] __attribute__ ((aligned (32)));
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__m256i h0, h1, h2, h3, h4, h5, h6, h7;
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size_t ptr;
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sph_u64 bcount;
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} sph_skein_4way_big_context;
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typedef sph_skein_4way_big_context skein512_4way_context;
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typedef sph_skein_4way_big_context skein256_4way_context;
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void skein512_4way_init(void *cc);
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void skein512_4way(void *cc, const void *data, size_t len);
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void skein512_4way_close(void *cc, void *dst);
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//void sph_skein512_addbits_and_close(
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// void *cc, unsigned ub, unsigned n, void *dst);
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void skein256_4way_init(void *cc);
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void skein256_4way(void *cc, const void *data, size_t len);
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void skein256_4way_close(void *cc, void *dst);
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//void sph_skein256_addbits_and_close(
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// void *cc, unsigned ub, unsigned n, void *dst);
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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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