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440 lines
13 KiB
440 lines
13 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file Hash.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#include "Hash.h"
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include "picosha2.h"
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using namespace std;
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using namespace dev;
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namespace dev
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{
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h256 sha256(bytesConstRef _input)
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{
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h256 ret;
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picosha2::hash256(_input.begin(), _input.end(), ret.data(), ret.data() + 32);
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return ret;
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}
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namespace rmd160
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{
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/********************************************************************\
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*
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* FILE: rmd160.h
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* FILE: rmd160.c
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*
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* CONTENTS: Header file for a sample C-implementation of the
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* RIPEMD-160 hash-function.
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* TARGET: any computer with an ANSI C compiler
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*
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* AUTHOR: Antoon Bosselaers, ESAT-COSIC
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* DATE: 1 March 1996
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* VERSION: 1.0
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*
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* Copyright (c) Katholieke Universiteit Leuven
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* 1996, All Rights Reserved
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*
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\********************************************************************/
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// Adapted into "header-only" format by Gav Wood.
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/* macro definitions */
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#define RMDsize 160
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/* collect four bytes into one word: */
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#define BYTES_TO_DWORD(strptr) \
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(((uint32_t) *((strptr)+3) << 24) | \
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((uint32_t) *((strptr)+2) << 16) | \
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((uint32_t) *((strptr)+1) << 8) | \
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((uint32_t) *(strptr)))
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/* ROL(x, n) cyclically rotates x over n bits to the left */
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/* x must be of an unsigned 32 bits type and 0 <= n < 32. */
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#define ROL(x, n) (((x) << (n)) | ((x) >> (32-(n))))
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/* the five basic functions F(), G() and H() */
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#define F(x, y, z) ((x) ^ (y) ^ (z))
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#define G(x, y, z) (((x) & (y)) | (~(x) & (z)))
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#define H(x, y, z) (((x) | ~(y)) ^ (z))
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#define I(x, y, z) (((x) & (z)) | ((y) & ~(z)))
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#define J(x, y, z) ((x) ^ ((y) | ~(z)))
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/* the ten basic operations FF() through III() */
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#define FF(a, b, c, d, e, x, s) {\
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(a) += F((b), (c), (d)) + (x);\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define GG(a, b, c, d, e, x, s) {\
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(a) += G((b), (c), (d)) + (x) + 0x5a827999UL;\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define HH(a, b, c, d, e, x, s) {\
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(a) += H((b), (c), (d)) + (x) + 0x6ed9eba1UL;\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define II(a, b, c, d, e, x, s) {\
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(a) += I((b), (c), (d)) + (x) + 0x8f1bbcdcUL;\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define JJ(a, b, c, d, e, x, s) {\
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(a) += J((b), (c), (d)) + (x) + 0xa953fd4eUL;\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define FFF(a, b, c, d, e, x, s) {\
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(a) += F((b), (c), (d)) + (x);\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define GGG(a, b, c, d, e, x, s) {\
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(a) += G((b), (c), (d)) + (x) + 0x7a6d76e9UL;\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define HHH(a, b, c, d, e, x, s) {\
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(a) += H((b), (c), (d)) + (x) + 0x6d703ef3UL;\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define III(a, b, c, d, e, x, s) {\
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(a) += I((b), (c), (d)) + (x) + 0x5c4dd124UL;\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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#define JJJ(a, b, c, d, e, x, s) {\
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(a) += J((b), (c), (d)) + (x) + 0x50a28be6UL;\
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(a) = ROL((a), (s)) + (e);\
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(c) = ROL((c), 10);\
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}
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void MDinit(uint32_t *MDbuf)
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{
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MDbuf[0] = 0x67452301UL;
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MDbuf[1] = 0xefcdab89UL;
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MDbuf[2] = 0x98badcfeUL;
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MDbuf[3] = 0x10325476UL;
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MDbuf[4] = 0xc3d2e1f0UL;
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return;
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}
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/********************************************************************/
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void MDcompress(uint32_t *MDbuf, uint32_t *X)
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{
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uint32_t aa = MDbuf[0], bb = MDbuf[1], cc = MDbuf[2],
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dd = MDbuf[3], ee = MDbuf[4];
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uint32_t aaa = MDbuf[0], bbb = MDbuf[1], ccc = MDbuf[2],
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ddd = MDbuf[3], eee = MDbuf[4];
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/* round 1 */
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FF(aa, bb, cc, dd, ee, X[ 0], 11);
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FF(ee, aa, bb, cc, dd, X[ 1], 14);
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FF(dd, ee, aa, bb, cc, X[ 2], 15);
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FF(cc, dd, ee, aa, bb, X[ 3], 12);
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FF(bb, cc, dd, ee, aa, X[ 4], 5);
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FF(aa, bb, cc, dd, ee, X[ 5], 8);
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FF(ee, aa, bb, cc, dd, X[ 6], 7);
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FF(dd, ee, aa, bb, cc, X[ 7], 9);
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FF(cc, dd, ee, aa, bb, X[ 8], 11);
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FF(bb, cc, dd, ee, aa, X[ 9], 13);
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FF(aa, bb, cc, dd, ee, X[10], 14);
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FF(ee, aa, bb, cc, dd, X[11], 15);
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FF(dd, ee, aa, bb, cc, X[12], 6);
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FF(cc, dd, ee, aa, bb, X[13], 7);
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FF(bb, cc, dd, ee, aa, X[14], 9);
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FF(aa, bb, cc, dd, ee, X[15], 8);
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/* round 2 */
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GG(ee, aa, bb, cc, dd, X[ 7], 7);
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GG(dd, ee, aa, bb, cc, X[ 4], 6);
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GG(cc, dd, ee, aa, bb, X[13], 8);
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GG(bb, cc, dd, ee, aa, X[ 1], 13);
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GG(aa, bb, cc, dd, ee, X[10], 11);
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GG(ee, aa, bb, cc, dd, X[ 6], 9);
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GG(dd, ee, aa, bb, cc, X[15], 7);
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GG(cc, dd, ee, aa, bb, X[ 3], 15);
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GG(bb, cc, dd, ee, aa, X[12], 7);
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GG(aa, bb, cc, dd, ee, X[ 0], 12);
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GG(ee, aa, bb, cc, dd, X[ 9], 15);
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GG(dd, ee, aa, bb, cc, X[ 5], 9);
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GG(cc, dd, ee, aa, bb, X[ 2], 11);
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GG(bb, cc, dd, ee, aa, X[14], 7);
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GG(aa, bb, cc, dd, ee, X[11], 13);
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GG(ee, aa, bb, cc, dd, X[ 8], 12);
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/* round 3 */
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HH(dd, ee, aa, bb, cc, X[ 3], 11);
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HH(cc, dd, ee, aa, bb, X[10], 13);
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HH(bb, cc, dd, ee, aa, X[14], 6);
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HH(aa, bb, cc, dd, ee, X[ 4], 7);
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HH(ee, aa, bb, cc, dd, X[ 9], 14);
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HH(dd, ee, aa, bb, cc, X[15], 9);
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HH(cc, dd, ee, aa, bb, X[ 8], 13);
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HH(bb, cc, dd, ee, aa, X[ 1], 15);
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HH(aa, bb, cc, dd, ee, X[ 2], 14);
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HH(ee, aa, bb, cc, dd, X[ 7], 8);
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HH(dd, ee, aa, bb, cc, X[ 0], 13);
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HH(cc, dd, ee, aa, bb, X[ 6], 6);
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HH(bb, cc, dd, ee, aa, X[13], 5);
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HH(aa, bb, cc, dd, ee, X[11], 12);
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HH(ee, aa, bb, cc, dd, X[ 5], 7);
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HH(dd, ee, aa, bb, cc, X[12], 5);
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/* round 4 */
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II(cc, dd, ee, aa, bb, X[ 1], 11);
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II(bb, cc, dd, ee, aa, X[ 9], 12);
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II(aa, bb, cc, dd, ee, X[11], 14);
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II(ee, aa, bb, cc, dd, X[10], 15);
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II(dd, ee, aa, bb, cc, X[ 0], 14);
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II(cc, dd, ee, aa, bb, X[ 8], 15);
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II(bb, cc, dd, ee, aa, X[12], 9);
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II(aa, bb, cc, dd, ee, X[ 4], 8);
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II(ee, aa, bb, cc, dd, X[13], 9);
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II(dd, ee, aa, bb, cc, X[ 3], 14);
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II(cc, dd, ee, aa, bb, X[ 7], 5);
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II(bb, cc, dd, ee, aa, X[15], 6);
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II(aa, bb, cc, dd, ee, X[14], 8);
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II(ee, aa, bb, cc, dd, X[ 5], 6);
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II(dd, ee, aa, bb, cc, X[ 6], 5);
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II(cc, dd, ee, aa, bb, X[ 2], 12);
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/* round 5 */
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JJ(bb, cc, dd, ee, aa, X[ 4], 9);
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JJ(aa, bb, cc, dd, ee, X[ 0], 15);
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JJ(ee, aa, bb, cc, dd, X[ 5], 5);
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JJ(dd, ee, aa, bb, cc, X[ 9], 11);
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JJ(cc, dd, ee, aa, bb, X[ 7], 6);
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JJ(bb, cc, dd, ee, aa, X[12], 8);
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JJ(aa, bb, cc, dd, ee, X[ 2], 13);
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JJ(ee, aa, bb, cc, dd, X[10], 12);
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JJ(dd, ee, aa, bb, cc, X[14], 5);
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JJ(cc, dd, ee, aa, bb, X[ 1], 12);
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JJ(bb, cc, dd, ee, aa, X[ 3], 13);
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JJ(aa, bb, cc, dd, ee, X[ 8], 14);
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JJ(ee, aa, bb, cc, dd, X[11], 11);
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JJ(dd, ee, aa, bb, cc, X[ 6], 8);
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JJ(cc, dd, ee, aa, bb, X[15], 5);
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JJ(bb, cc, dd, ee, aa, X[13], 6);
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/* parallel round 1 */
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JJJ(aaa, bbb, ccc, ddd, eee, X[ 5], 8);
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JJJ(eee, aaa, bbb, ccc, ddd, X[14], 9);
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JJJ(ddd, eee, aaa, bbb, ccc, X[ 7], 9);
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JJJ(ccc, ddd, eee, aaa, bbb, X[ 0], 11);
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JJJ(bbb, ccc, ddd, eee, aaa, X[ 9], 13);
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JJJ(aaa, bbb, ccc, ddd, eee, X[ 2], 15);
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JJJ(eee, aaa, bbb, ccc, ddd, X[11], 15);
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JJJ(ddd, eee, aaa, bbb, ccc, X[ 4], 5);
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JJJ(ccc, ddd, eee, aaa, bbb, X[13], 7);
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JJJ(bbb, ccc, ddd, eee, aaa, X[ 6], 7);
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JJJ(aaa, bbb, ccc, ddd, eee, X[15], 8);
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JJJ(eee, aaa, bbb, ccc, ddd, X[ 8], 11);
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JJJ(ddd, eee, aaa, bbb, ccc, X[ 1], 14);
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JJJ(ccc, ddd, eee, aaa, bbb, X[10], 14);
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JJJ(bbb, ccc, ddd, eee, aaa, X[ 3], 12);
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JJJ(aaa, bbb, ccc, ddd, eee, X[12], 6);
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/* parallel round 2 */
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III(eee, aaa, bbb, ccc, ddd, X[ 6], 9);
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III(ddd, eee, aaa, bbb, ccc, X[11], 13);
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III(ccc, ddd, eee, aaa, bbb, X[ 3], 15);
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III(bbb, ccc, ddd, eee, aaa, X[ 7], 7);
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III(aaa, bbb, ccc, ddd, eee, X[ 0], 12);
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III(eee, aaa, bbb, ccc, ddd, X[13], 8);
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III(ddd, eee, aaa, bbb, ccc, X[ 5], 9);
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III(ccc, ddd, eee, aaa, bbb, X[10], 11);
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III(bbb, ccc, ddd, eee, aaa, X[14], 7);
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III(aaa, bbb, ccc, ddd, eee, X[15], 7);
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III(eee, aaa, bbb, ccc, ddd, X[ 8], 12);
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III(ddd, eee, aaa, bbb, ccc, X[12], 7);
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III(ccc, ddd, eee, aaa, bbb, X[ 4], 6);
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III(bbb, ccc, ddd, eee, aaa, X[ 9], 15);
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III(aaa, bbb, ccc, ddd, eee, X[ 1], 13);
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III(eee, aaa, bbb, ccc, ddd, X[ 2], 11);
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/* parallel round 3 */
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HHH(ddd, eee, aaa, bbb, ccc, X[15], 9);
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HHH(ccc, ddd, eee, aaa, bbb, X[ 5], 7);
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HHH(bbb, ccc, ddd, eee, aaa, X[ 1], 15);
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HHH(aaa, bbb, ccc, ddd, eee, X[ 3], 11);
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HHH(eee, aaa, bbb, ccc, ddd, X[ 7], 8);
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HHH(ddd, eee, aaa, bbb, ccc, X[14], 6);
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HHH(ccc, ddd, eee, aaa, bbb, X[ 6], 6);
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HHH(bbb, ccc, ddd, eee, aaa, X[ 9], 14);
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HHH(aaa, bbb, ccc, ddd, eee, X[11], 12);
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HHH(eee, aaa, bbb, ccc, ddd, X[ 8], 13);
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HHH(ddd, eee, aaa, bbb, ccc, X[12], 5);
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HHH(ccc, ddd, eee, aaa, bbb, X[ 2], 14);
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HHH(bbb, ccc, ddd, eee, aaa, X[10], 13);
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HHH(aaa, bbb, ccc, ddd, eee, X[ 0], 13);
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HHH(eee, aaa, bbb, ccc, ddd, X[ 4], 7);
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HHH(ddd, eee, aaa, bbb, ccc, X[13], 5);
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/* parallel round 4 */
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GGG(ccc, ddd, eee, aaa, bbb, X[ 8], 15);
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GGG(bbb, ccc, ddd, eee, aaa, X[ 6], 5);
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GGG(aaa, bbb, ccc, ddd, eee, X[ 4], 8);
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GGG(eee, aaa, bbb, ccc, ddd, X[ 1], 11);
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GGG(ddd, eee, aaa, bbb, ccc, X[ 3], 14);
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GGG(ccc, ddd, eee, aaa, bbb, X[11], 14);
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GGG(bbb, ccc, ddd, eee, aaa, X[15], 6);
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GGG(aaa, bbb, ccc, ddd, eee, X[ 0], 14);
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GGG(eee, aaa, bbb, ccc, ddd, X[ 5], 6);
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GGG(ddd, eee, aaa, bbb, ccc, X[12], 9);
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GGG(ccc, ddd, eee, aaa, bbb, X[ 2], 12);
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GGG(bbb, ccc, ddd, eee, aaa, X[13], 9);
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GGG(aaa, bbb, ccc, ddd, eee, X[ 9], 12);
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GGG(eee, aaa, bbb, ccc, ddd, X[ 7], 5);
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GGG(ddd, eee, aaa, bbb, ccc, X[10], 15);
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GGG(ccc, ddd, eee, aaa, bbb, X[14], 8);
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/* parallel round 5 */
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FFF(bbb, ccc, ddd, eee, aaa, X[12] , 8);
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FFF(aaa, bbb, ccc, ddd, eee, X[15] , 5);
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FFF(eee, aaa, bbb, ccc, ddd, X[10] , 12);
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FFF(ddd, eee, aaa, bbb, ccc, X[ 4] , 9);
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FFF(ccc, ddd, eee, aaa, bbb, X[ 1] , 12);
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FFF(bbb, ccc, ddd, eee, aaa, X[ 5] , 5);
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FFF(aaa, bbb, ccc, ddd, eee, X[ 8] , 14);
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FFF(eee, aaa, bbb, ccc, ddd, X[ 7] , 6);
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FFF(ddd, eee, aaa, bbb, ccc, X[ 6] , 8);
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FFF(ccc, ddd, eee, aaa, bbb, X[ 2] , 13);
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FFF(bbb, ccc, ddd, eee, aaa, X[13] , 6);
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FFF(aaa, bbb, ccc, ddd, eee, X[14] , 5);
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FFF(eee, aaa, bbb, ccc, ddd, X[ 0] , 15);
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FFF(ddd, eee, aaa, bbb, ccc, X[ 3] , 13);
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FFF(ccc, ddd, eee, aaa, bbb, X[ 9] , 11);
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FFF(bbb, ccc, ddd, eee, aaa, X[11] , 11);
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/* combine results */
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ddd += cc + MDbuf[1]; /* final result for MDbuf[0] */
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MDbuf[1] = MDbuf[2] + dd + eee;
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MDbuf[2] = MDbuf[3] + ee + aaa;
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MDbuf[3] = MDbuf[4] + aa + bbb;
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MDbuf[4] = MDbuf[0] + bb + ccc;
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MDbuf[0] = ddd;
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return;
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}
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void MDfinish(uint32_t *MDbuf, byte const *strptr, uint32_t lswlen, uint32_t mswlen)
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{
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unsigned int i; /* counter */
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uint32_t X[16]; /* message words */
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memset(X, 0, 16*sizeof(uint32_t));
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/* put bytes from strptr into X */
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for (i=0; i<(lswlen&63); i++) {
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/* byte i goes into word X[i div 4] at pos. 8*(i mod 4) */
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X[i>>2] ^= (uint32_t) *strptr++ << (8 * (i&3));
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}
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/* append the bit m_n == 1 */
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|
X[(lswlen>>2)&15] ^= (uint32_t)1 << (8*(lswlen&3) + 7);
|
|
|
|
if ((lswlen & 63) > 55) {
|
|
/* length goes to next block */
|
|
MDcompress(MDbuf, X);
|
|
memset(X, 0, 16*sizeof(uint32_t));
|
|
}
|
|
|
|
/* append length in bits*/
|
|
X[14] = lswlen << 3;
|
|
X[15] = (lswlen >> 29) | (mswlen << 3);
|
|
MDcompress(MDbuf, X);
|
|
|
|
return;
|
|
}
|
|
|
|
#undef ROL
|
|
#undef F
|
|
#undef G
|
|
#undef H
|
|
#undef I
|
|
#undef J
|
|
#undef FF
|
|
#undef GG
|
|
#undef HH
|
|
#undef II
|
|
#undef JJ
|
|
#undef FFF
|
|
#undef GGG
|
|
#undef HHH
|
|
#undef III
|
|
#undef JJJ
|
|
|
|
}
|
|
|
|
/*
|
|
* @returns RMD(_input)
|
|
*/
|
|
h160 ripemd160(bytesConstRef _input)
|
|
{
|
|
h160 hashcode;
|
|
uint32_t buffer[RMDsize / 32]; // contains (A, B, C, D(, E))
|
|
uint32_t current[16]; // current 16-word chunk
|
|
|
|
// initialize
|
|
rmd160::MDinit(buffer);
|
|
byte const* message = _input.data();
|
|
uint32_t remaining = _input.size(); // # of bytes not yet processed
|
|
|
|
// process message in 16x 4-byte chunks
|
|
for (; remaining >= 64; remaining -= 64)
|
|
{
|
|
for (unsigned i = 0; i < 16; i++)
|
|
{
|
|
current[i] = BYTES_TO_DWORD(message);
|
|
message += 4;
|
|
}
|
|
rmd160::MDcompress(buffer, current);
|
|
}
|
|
// length mod 64 bytes left
|
|
|
|
// finish:
|
|
rmd160::MDfinish(buffer, message, _input.size(), 0);
|
|
|
|
for (unsigned i = 0; i < RMDsize / 8; i += 4)
|
|
{
|
|
hashcode[i] = buffer[i >> 2]; // implicit cast to byte
|
|
hashcode[i + 1] = (buffer[i >> 2] >> 8); //extracts the 8 least
|
|
hashcode[i + 2] = (buffer[i >> 2] >> 16); // significant bits.
|
|
hashcode[i + 3] = (buffer[i >> 2] >> 24);
|
|
}
|
|
|
|
return hashcode;
|
|
}
|
|
|
|
#undef BYTES_TO_DWORD
|
|
#undef RMDsize
|
|
|
|
}
|
|
|