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sha3.cpp
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sha3.cpp
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/*
scrypt-jane by Andrew M, https://github.com/floodyberry/scrypt-jane
Public Domain or MIT License, whichever is easier
*/
#include <string.h>
#include <stdio.h>
#include <malloc.h>
#include "sha3.h"
/*
The Keccak sponge function, designed by Guido Bertoni, Joan Daemen,
Michaël Peeters and Gilles Van Assche. For more information, feedback or
questions, please refer to our website: http://keccak.noekeon.org/
Implementation by Ronny Van Keer,
hereby denoted as "the implementer".
To the extent possible under law, the implementer has waived all copyright
and related or neighboring rights to the source code in this file.
http://creativecommons.org/publicdomain/zero/1.0/
*/
// WARNING: This implementation assumes a little-endian platform. Support for big-endinanness is not yet implemented.
#include <string.h>
#include <stdint.h>
#define ROL(a, offset) ((((uint64_t)a) << ((offset) % 64)) ^ (((uint64_t)a) >> (64-((offset) % 64))))
#define ROL_mult8(a, offset) ROL(a, offset)
void KeccakF( uint64_t * state, const uint64_t *in, int laneCount );
extern "C" int crypto_hash( unsigned char *out, const unsigned char *in, unsigned long long inlen )
{
uint64_t state[5 * 5];
unsigned char temp[136];
memset( state, 0, sizeof(state) );
for ( /* empty */; inlen >= 136; inlen -= 136, in += 136 )
{
KeccakF( state, (const uint64_t*)in, 136 / sizeof(uint64_t) );
}
// padding
memcpy( temp, in, (size_t)inlen );
temp[inlen++] = 1;
memset( temp+inlen, 0, 136 - (size_t)inlen );
temp[136-1] |= 0x80;
KeccakF( state, (const uint64_t*)temp, 136 / sizeof(uint64_t) );
memcpy( out, state, 32 );
return ( 0 );
}
const uint64_t KeccakF_RoundConstants[24] =
{
(uint64_t)0x0000000000000001ULL,
(uint64_t)0x0000000000008082ULL,
(uint64_t)0x800000000000808aULL,
(uint64_t)0x8000000080008000ULL,
(uint64_t)0x000000000000808bULL,
(uint64_t)0x0000000080000001ULL,
(uint64_t)0x8000000080008081ULL,
(uint64_t)0x8000000000008009ULL,
(uint64_t)0x000000000000008aULL,
(uint64_t)0x0000000000000088ULL,
(uint64_t)0x0000000080008009ULL,
(uint64_t)0x000000008000000aULL,
(uint64_t)0x000000008000808bULL,
(uint64_t)0x800000000000008bULL,
(uint64_t)0x8000000000008089ULL,
(uint64_t)0x8000000000008003ULL,
(uint64_t)0x8000000000008002ULL,
(uint64_t)0x8000000000000080ULL,
(uint64_t)0x000000000000800aULL,
(uint64_t)0x800000008000000aULL,
(uint64_t)0x8000000080008081ULL,
(uint64_t)0x8000000000008080ULL,
(uint64_t)0x0000000080000001ULL,
(uint64_t)0x8000000080008008ULL
};
void KeccakF( uint64_t * state, const uint64_t *in, int laneCount )
{
{
while ( --laneCount >= 0 )
{
state[laneCount] ^= in[laneCount];
}
}
{
uint64_t Aba, Abe, Abi, Abo, Abu;
uint64_t Aga, Age, Agi, Ago, Agu;
uint64_t Aka, Ake, Aki, Ako, Aku;
uint64_t Ama, Ame, Ami, Amo, Amu;
uint64_t Asa, Ase, Asi, Aso, Asu;
uint64_t BCa, BCe, BCi, BCo, BCu;
uint64_t Da, De, Di, Do, Du;
uint64_t Eba, Ebe, Ebi, Ebo, Ebu;
uint64_t Ega, Ege, Egi, Ego, Egu;
uint64_t Eka, Eke, Eki, Eko, Eku;
uint64_t Ema, Eme, Emi, Emo, Emu;
uint64_t Esa, Ese, Esi, Eso, Esu;
//copyFromState(A, state)
Aba = state[ 0];
Abe = state[ 1];
Abi = state[ 2];
Abo = state[ 3];
Abu = state[ 4];
Aga = state[ 5];
Age = state[ 6];
Agi = state[ 7];
Ago = state[ 8];
Agu = state[ 9];
Aka = state[10];
Ake = state[11];
Aki = state[12];
Ako = state[13];
Aku = state[14];
Ama = state[15];
Ame = state[16];
Ami = state[17];
Amo = state[18];
Amu = state[19];
Asa = state[20];
Ase = state[21];
Asi = state[22];
Aso = state[23];
Asu = state[24];
for( laneCount = 0; laneCount < 24; laneCount += 2 )
{
// prepareTheta
BCa = Aba^Aga^Aka^Ama^Asa;
BCe = Abe^Age^Ake^Ame^Ase;
BCi = Abi^Agi^Aki^Ami^Asi;
BCo = Abo^Ago^Ako^Amo^Aso;
BCu = Abu^Agu^Aku^Amu^Asu;
//thetaRhoPiChiIotaPrepareTheta(round , A, E)
Da = BCu^ROL(BCe, 1);
De = BCa^ROL(BCi, 1);
Di = BCe^ROL(BCo, 1);
Do = BCi^ROL(BCu, 1);
Du = BCo^ROL(BCa, 1);
Aba ^= Da;
BCa = Aba;
Age ^= De;
BCe = ROL(Age, 44);
Aki ^= Di;
BCi = ROL(Aki, 43);
Amo ^= Do;
BCo = ROL(Amo, 21);
Asu ^= Du;
BCu = ROL(Asu, 14);
Eba = BCa ^((~BCe)& BCi );
Eba ^= (uint64_t)KeccakF_RoundConstants[laneCount];
Ebe = BCe ^((~BCi)& BCo );
Ebi = BCi ^((~BCo)& BCu );
Ebo = BCo ^((~BCu)& BCa );
Ebu = BCu ^((~BCa)& BCe );
Abo ^= Do;
BCa = ROL(Abo, 28);
Agu ^= Du;
BCe = ROL(Agu, 20);
Aka ^= Da;
BCi = ROL(Aka, 3);
Ame ^= De;
BCo = ROL(Ame, 45);
Asi ^= Di;
BCu = ROL(Asi, 61);
Ega = BCa ^((~BCe)& BCi );
Ege = BCe ^((~BCi)& BCo );
Egi = BCi ^((~BCo)& BCu );
Ego = BCo ^((~BCu)& BCa );
Egu = BCu ^((~BCa)& BCe );
Abe ^= De;
BCa = ROL(Abe, 1);
Agi ^= Di;
BCe = ROL(Agi, 6);
Ako ^= Do;
BCi = ROL(Ako, 25);
Amu ^= Du;
BCo = ROL_mult8(Amu, 8);
Asa ^= Da;
BCu = ROL(Asa, 18);
Eka = BCa ^((~BCe)& BCi );
Eke = BCe ^((~BCi)& BCo );
Eki = BCi ^((~BCo)& BCu );
Eko = BCo ^((~BCu)& BCa );
Eku = BCu ^((~BCa)& BCe );
Abu ^= Du;
BCa = ROL(Abu, 27);
Aga ^= Da;
BCe = ROL(Aga, 36);
Ake ^= De;
BCi = ROL(Ake, 10);
Ami ^= Di;
BCo = ROL(Ami, 15);
Aso ^= Do;
BCu = ROL_mult8(Aso, 56);
Ema = BCa ^((~BCe)& BCi );
Eme = BCe ^((~BCi)& BCo );
Emi = BCi ^((~BCo)& BCu );
Emo = BCo ^((~BCu)& BCa );
Emu = BCu ^((~BCa)& BCe );
Abi ^= Di;
BCa = ROL(Abi, 62);
Ago ^= Do;
BCe = ROL(Ago, 55);
Aku ^= Du;
BCi = ROL(Aku, 39);
Ama ^= Da;
BCo = ROL(Ama, 41);
Ase ^= De;
BCu = ROL(Ase, 2);
Esa = BCa ^((~BCe)& BCi );
Ese = BCe ^((~BCi)& BCo );
Esi = BCi ^((~BCo)& BCu );
Eso = BCo ^((~BCu)& BCa );
Esu = BCu ^((~BCa)& BCe );
// prepareTheta
BCa = Eba^Ega^Eka^Ema^Esa;
BCe = Ebe^Ege^Eke^Eme^Ese;
BCi = Ebi^Egi^Eki^Emi^Esi;
BCo = Ebo^Ego^Eko^Emo^Eso;
BCu = Ebu^Egu^Eku^Emu^Esu;
//thetaRhoPiChiIotaPrepareTheta(round+1, E, A)
Da = BCu^ROL(BCe, 1);
De = BCa^ROL(BCi, 1);
Di = BCe^ROL(BCo, 1);
Do = BCi^ROL(BCu, 1);
Du = BCo^ROL(BCa, 1);
Eba ^= Da;
BCa = Eba;
Ege ^= De;
BCe = ROL(Ege, 44);
Eki ^= Di;
BCi = ROL(Eki, 43);
Emo ^= Do;
BCo = ROL(Emo, 21);
Esu ^= Du;
BCu = ROL(Esu, 14);
Aba = BCa ^((~BCe)& BCi );
Aba ^= (uint64_t)KeccakF_RoundConstants[laneCount+1];
Abe = BCe ^((~BCi)& BCo );
Abi = BCi ^((~BCo)& BCu );
Abo = BCo ^((~BCu)& BCa );
Abu = BCu ^((~BCa)& BCe );
Ebo ^= Do;
BCa = ROL(Ebo, 28);
Egu ^= Du;
BCe = ROL(Egu, 20);
Eka ^= Da;
BCi = ROL(Eka, 3);
Eme ^= De;
BCo = ROL(Eme, 45);
Esi ^= Di;
BCu = ROL(Esi, 61);
Aga = BCa ^((~BCe)& BCi );
Age = BCe ^((~BCi)& BCo );
Agi = BCi ^((~BCo)& BCu );
Ago = BCo ^((~BCu)& BCa );
Agu = BCu ^((~BCa)& BCe );
Ebe ^= De;
BCa = ROL(Ebe, 1);
Egi ^= Di;
BCe = ROL(Egi, 6);
Eko ^= Do;
BCi = ROL(Eko, 25);
Emu ^= Du;
BCo = ROL_mult8(Emu, 8);
Esa ^= Da;
BCu = ROL(Esa, 18);
Aka = BCa ^((~BCe)& BCi );
Ake = BCe ^((~BCi)& BCo );
Aki = BCi ^((~BCo)& BCu );
Ako = BCo ^((~BCu)& BCa );
Aku = BCu ^((~BCa)& BCe );
Ebu ^= Du;
BCa = ROL(Ebu, 27);
Ega ^= Da;
BCe = ROL(Ega, 36);
Eke ^= De;
BCi = ROL(Eke, 10);
Emi ^= Di;
BCo = ROL(Emi, 15);
Eso ^= Do;
BCu = ROL_mult8(Eso, 56);
Ama = BCa ^((~BCe)& BCi );
Ame = BCe ^((~BCi)& BCo );
Ami = BCi ^((~BCo)& BCu );
Amo = BCo ^((~BCu)& BCa );
Amu = BCu ^((~BCa)& BCe );
Ebi ^= Di;
BCa = ROL(Ebi, 62);
Ego ^= Do;
BCe = ROL(Ego, 55);
Eku ^= Du;
BCi = ROL(Eku, 39);
Ema ^= Da;
BCo = ROL(Ema, 41);
Ese ^= De;
BCu = ROL(Ese, 2);
Asa = BCa ^((~BCe)& BCi );
Ase = BCe ^((~BCi)& BCo );
Asi = BCi ^((~BCo)& BCu );
Aso = BCo ^((~BCu)& BCa );
Asu = BCu ^((~BCa)& BCe );
}
//copyToState(state, A)
state[ 0] = Aba;
state[ 1] = Abe;
state[ 2] = Abi;
state[ 3] = Abo;
state[ 4] = Abu;
state[ 5] = Aga;
state[ 6] = Age;
state[ 7] = Agi;
state[ 8] = Ago;
state[ 9] = Agu;
state[10] = Aka;
state[11] = Ake;
state[12] = Aki;
state[13] = Ako;
state[14] = Aku;
state[15] = Ama;
state[16] = Ame;
state[17] = Ami;
state[18] = Amo;
state[19] = Amu;
state[20] = Asa;
state[21] = Ase;
state[22] = Asi;
state[23] = Aso;
state[24] = Asu;
}
}