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97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
/* $Id: sha3nist.h 170 2010-05-07 13:27:24Z tp $ */
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/**
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* NIST SHA-3 competition compatibility header.
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*
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* This file defines the API specified by NIST for the SHA-3 competition
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* candidates; it is applied over one of the compatible implementations
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* in this library. This header must first be modified to select a
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* function (inclusion of the relevant header files, and value of the
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* <code>SPH_NIST</code> macro).
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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 sha3nist.h
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* @author Thomas Pornin <thomas.pornin@cryptolog.com>
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*/
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#ifndef SPH_SHA3NIST_H__
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#define SPH_SHA3NIST_H__
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#ifndef DOXYGEN_IGNORE
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/*
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* Here, define SPH_NIST to the base of the internal names for the
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* hash function. If SPH_NIST evaluates to the identifier "foo", then
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* the functions foo224, foo256, foo384 and foo512 will be used.
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*/
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#define SPH_NIST sha
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#include "sph_sha3.h"
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#include <limits.h>
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typedef unsigned char BitSequence;
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#ifdef ULLONG_MAX
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typedef unsigned long long DataLength;
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#else
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typedef unsigned long DataLength;
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#endif
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typedef enum {
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SUCCESS = 0,
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FAIL = 1,
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BAD_HASHBITLEN = 2
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} HashReturn;
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#define SPH_CAT(x, y) SPH_CAT_(x, y)
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#define SPH_CAT_(x, y) x ## y
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typedef struct {
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union {
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SPH_CAT(SPH_CAT(sph_, SPH_NIST), 224_context) ctx224;
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SPH_CAT(SPH_CAT(sph_, SPH_NIST), 256_context) ctx256;
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SPH_CAT(SPH_CAT(sph_, SPH_NIST), 384_context) ctx384;
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SPH_CAT(SPH_CAT(sph_, SPH_NIST), 512_context) ctx512;
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} u;
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int hashbitlen;
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BitSequence output[64];
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int output_computed;
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} hashState;
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HashReturn Init(hashState *state, int hashbitlen);
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HashReturn Update(hashState *state,
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const BitSequence *data, DataLength databitlen);
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HashReturn Final(hashState *state, BitSequence *hashval);
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HashReturn Hash(int hashbitlen, const BitSequence *data,
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DataLength databitlen, BitSequence *hashval);
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#endif
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#endif
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