keccak.c

#include "config.h"
#include "miner.h"

#include <stdlib.h>
#include <stdint.h>
#include <string.h>

#define CL_SET_BLKARG(blkvar) status |= clSetKernelArg(*kernel, num++, sizeof(uint), (void *)&blk->blkvar)
#define CL_SET_ARG(var) status |= clSetKernelArg(*kernel, num++, sizeof(var), (void *)&var)

struct uint256
{
	unsigned char v[32];
};
typedef struct uint256 uint256;

typedef unsigned long long  UINT64;

#define ROL(a, offset) ((a << offset) | (a >> (64-offset)))

static const UINT64 KeccakF_RoundConstants[24] = 
{
	0x0000000000000001ULL,
	0x0000000000008082ULL,
	0x800000000000808aULL,
	0x8000000080008000ULL,
	0x000000000000808bULL,
	0x0000000080000001ULL,
	0x8000000080008081ULL,
	0x8000000000008009ULL,
	0x000000000000008aULL,
	0x0000000000000088ULL,
	0x0000000080008009ULL,
	0x000000008000000aULL,
	0x000000008000808bULL,
	0x800000000000008bULL,
	0x8000000000008089ULL,
	0x8000000000008003ULL,
	0x8000000000008002ULL,
	0x8000000000000080ULL,
	0x000000000000800aULL,
	0x800000008000000aULL,
	0x8000000080008081ULL,
	0x8000000000008080ULL,
	0x0000000080000001ULL,
	0x8000000080008008ULL
};

struct bin32
{
	UINT64 v0;
	UINT64 v1;
	UINT64 v2;
	UINT64 v3;
};

void keccak1(unsigned char *out, const unsigned char *inraw, unsigned inrawlen)
{
	unsigned char temp[136];
	unsigned round;

	UINT64 Aba, Abe, Abi, Abo, Abu;
	UINT64 Aga, Age, Agi, Ago, Agu;
	UINT64 Aka, Ake, Aki, Ako, Aku;
	UINT64 Ama, Ame, Ami, Amo, Amu;
	UINT64 Asa, Ase, Asi, Aso, Asu;
	UINT64 BCa, BCe, BCi, BCo, BCu;
	UINT64 Da, De, Di, Do, Du;
	UINT64 Eba, Ebe, Ebi, Ebo, Ebu;
	UINT64 Ega, Ege, Egi, Ego, Egu;
	UINT64 Eka, Eke, Eki, Eko, Eku;
	UINT64 Ema, Eme, Emi, Emo, Emu;
	UINT64 Esa, Ese, Esi, Eso, Esu;

	memcpy(temp, inraw, inrawlen);
	temp[inrawlen++] = 1;
	memset( temp+inrawlen, 0, 136 - inrawlen);
	temp[136-1] |= 0x80;
	const UINT64 *in = (const UINT64 *)temp;

	//copyFromState(A, state)
	Aba = in[ 0];
	Abe = in[ 1];
	Abi = in[ 2];
	Abo = in[ 3];
	Abu = in[ 4];
	Aga = in[ 5];
	Age = in[ 6];
	Agi = in[ 7];
	Ago = in[ 8];
	Agu = in[ 9];
	Aka = in[10];
	Ake = in[11];
	Aki = in[12];
	Ako = in[13];
	Aku = in[14];
	Ama = in[15];
	Ame = in[16];
	Ami = 0;
	Amo = 0;
	Amu = 0;
	Asa = 0;
	Ase = 0;
	Asi = 0;
	Aso = 0;
	Asu = 0;

	for( round = 0; round < 24; round += 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 ^= KeccakF_RoundConstants[round];
		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(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(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 ^= KeccakF_RoundConstants[round+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(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(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 );
	}
	{
	UINT64 *out64 = (UINT64 *)out;
	out64[ 0] = Aba;
	out64[ 1] = Abe;
	out64[ 2] = Abi;
	out64[ 3] = Abo;
	}
}

static int crypto_hash( unsigned char *out, const unsigned char *in, unsigned inlen )
{
	keccak1(out, in, inlen);

	return 0;
}

void Hash3(uint256 *pResult, unsigned char const *pbegin, unsigned char const *pend)
{
	uint256 hash1;
	uint256 hash2;
	crypto_hash((unsigned char*)&hash1, pbegin, (pend - pbegin) * sizeof(pbegin[0]));
	crypto_hash((unsigned char*)&hash2, (unsigned char*)&hash1, sizeof(hash1));
	*pResult = hash2;
}

void keccak_regenhash(struct work *work)
{
	uint256 result;
	Hash3(&result, &work->data[0], &work->data[80]);
	memcpy(work->hash, &result, 32);
}

bool keccak_prepare_work(struct thr_info __maybe_unused *thr, struct work *work)
{
	memcpy(&work->blk.keccak_data[0], &work->data[0], 80);
	return true;
}