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cpuAutolykos.cpp
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cpuAutolykos.cpp
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#include "cpuAutolykos.h"
AutolykosAlg::AutolykosAlg()
{
m_str = new char[64];
bound_str = new char[100];
m_n = new uint8_t[NUM_SIZE_8 + NONCE_SIZE_8];
p_w_m_n = new uint8_t[PK_SIZE_8 + PK_SIZE_8 + NUM_SIZE_8 + NONCE_SIZE_8];
Hinput = new uint8_t[sizeof(uint32_t) + CONST_MES_SIZE_8 + PK_SIZE_8 + NUM_SIZE_8 + PK_SIZE_8];
n_str = new char[NONCE_SIZE_4];
h_str = new char[HEIGHT_SIZE];
int tr = sizeof(unsigned long long);
for (size_t i = 0; i < CONST_MES_SIZE_8 / tr; i++)
{
unsigned long long tmp = i;
uint8_t tmp2[8];
uint8_t tmp1[8];
memcpy(tmp1, &tmp, tr);
tmp2[0] = tmp1[7];
tmp2[1] = tmp1[6];
tmp2[2] = tmp1[5];
tmp2[3] = tmp1[4];
tmp2[4] = tmp1[3];
tmp2[5] = tmp1[2];
tmp2[6] = tmp1[1];
tmp2[7] = tmp1[0];
memcpy(&CONST_MESS[i], tmp2, tr);
}
}
AutolykosAlg::~AutolykosAlg()
{
}
void AutolykosAlg::Blake2b256(const char * in,
const int len,
uint8_t * output,
char * outstr)
{
ctx_t ctx;
uint64_t aux[32];
//====================================================================//
// Initialize context
//====================================================================//
memset(ctx.b, 0, 128);
B2B_IV(ctx.h);
ctx.h[0] ^= 0x01010000 ^ NUM_SIZE_8;
memset(ctx.t, 0, 16);
ctx.c = 0;
//====================================================================//
// Hash message
//====================================================================//
for (int i = 0; i < len; ++i)
{
if (ctx.c == 128) { HOST_B2B_H(&ctx, aux); }
ctx.b[ctx.c++] = (uint8_t)(in[i]);
}
HOST_B2B_H_LAST(&ctx, aux);
for (int i = 0; i < NUM_SIZE_8; ++i)
{
output[NUM_SIZE_8 - i - 1] = (ctx.h[i >> 3] >> ((i & 7) << 3)) & 0xFF;
}
LittleEndianToHexStr(output, NUM_SIZE_8, outstr);
}
void AutolykosAlg::GenIdex(const char * in, const int len, uint32_t* index, uint64_t N_LEN)
{
int a = INDEX_SIZE_8;
int b = K_LEN;
int c = NUM_SIZE_8;
int d = NUM_SIZE_4;
uint8_t sk[NUM_SIZE_8 * 2];
char skstr[NUM_SIZE_4 + 10];
memset(sk, 0, NUM_SIZE_8 * 2);
memset(skstr, 0, NUM_SIZE_4);
Blake2b256(in, len, sk, skstr);
uint8_t beH[PK_SIZE_8];
HexStrToBigEndian(skstr, NUM_SIZE_4, beH, NUM_SIZE_8);
uint32_t* ind = index;
memcpy(sk, beH, NUM_SIZE_8);
memcpy(sk + NUM_SIZE_8, beH, NUM_SIZE_8);
uint32_t tmpInd[32];
int sliceIndex = 0;
for (int k = 0; k < K_LEN; k++)
{
uint8_t tmp[4];
memcpy(tmp, sk + sliceIndex, 4);
memcpy(&tmpInd[k], sk + sliceIndex, 4);
uint8_t tmp2[4];
tmp2[0] = tmp[3];
tmp2[1] = tmp[2];
tmp2[2] = tmp[1];
tmp2[3] = tmp[0];
memcpy(&ind[k], tmp2, 4);
ind[k] = ind[k] % N_LEN;
sliceIndex++;
}
}
void AutolykosAlg::hashFn(const char * in, const int len, uint8_t * output)
{
char *skstr = new char[len * 3];
Blake2b256(in, len, output, skstr);
uint8_t beHash[PK_SIZE_8];
HexStrToBigEndian(skstr, NUM_SIZE_4, beHash, NUM_SIZE_8);
memcpy(output, beHash, NUM_SIZE_8);
delete skstr;
}
bool AutolykosAlg::RunAlg(
uint8_t *message,
uint8_t *nonce,
uint8_t *bPool,
uint8_t *height,
uint64_t N_LEN
)
{
BigEndianToHexStr(message, NUM_SIZE_8, m_str);
uint32_t ilen = 0;
LittleEndianOf256ToDecStr((uint8_t *)bPool, bound_str, &ilen);
uint32_t index[K_LEN];
LittleEndianToHexStr(nonce, NONCE_SIZE_8, n_str);
//memcpy(n_str , "0000000000003105" , NONCE_SIZE_4);
//uint32_t tttt;
//HexStrToLittleEndian(n_str, NONCE_SIZE_4, (uint8_t *)&tttt, NONCE_SIZE_8);
BigEndianToHexStr(height, HEIGHT_SIZE, h_str);
uint8_t beN[NONCE_SIZE_8];
HexStrToBigEndian(n_str, NONCE_SIZE_8 * 2, beN, NONCE_SIZE_8);
uint8_t beH[HEIGHT_SIZE];
HexStrToBigEndian(h_str, HEIGHT_SIZE * 2, beH, HEIGHT_SIZE);
uint32_t littleH;
HexStrToLittleEndian(h_str, HEIGHT_SIZE * 2,(uint8_t *)&littleH, HEIGHT_SIZE);
uint32_t littleN;
HexStrToLittleEndian(n_str, NONCE_SIZE_8 * 2, (uint8_t *)&littleN, NONCE_SIZE_8);
uint8_t h1[NUM_SIZE_8];
memcpy(m_n, message, NUM_SIZE_8);
memcpy(m_n + NUM_SIZE_8, beN, NONCE_SIZE_8);
hashFn((const char *)m_n, NUM_SIZE_8 + NONCE_SIZE_8, (uint8_t *)h1);
uint64_t h2;
char tmpL1[8];
tmpL1[0] = h1[31];
tmpL1[1] = h1[30];
tmpL1[2] = h1[29];
tmpL1[3] = h1[28];
tmpL1[4] = h1[27];
tmpL1[5] = h1[26];
tmpL1[6] = h1[25];
tmpL1[7] = h1[24];
memcpy(&h2, tmpL1, 8);
uint64_t h3 = h2 % N_LEN;
uint8_t iii[4];
iii[0] = ((char *)(&h3))[3];
iii[1] = ((char *)(&h3))[2];
iii[2] = ((char *)(&h3))[1];
iii[3] = ((char *)(&h3))[0];
uint8_t i_h_M[HEIGHT_SIZE + HEIGHT_SIZE + CONST_MES_SIZE_8];
memcpy(i_h_M, iii, HEIGHT_SIZE);
memcpy(i_h_M + HEIGHT_SIZE, beH, HEIGHT_SIZE);
memcpy(i_h_M + HEIGHT_SIZE + HEIGHT_SIZE, CONST_MESS, CONST_MES_SIZE_8);
hashFn((const char *)i_h_M, HEIGHT_SIZE + HEIGHT_SIZE + CONST_MES_SIZE_8, (uint8_t *)h1);
uint8_t ff[NUM_SIZE_8 - 1];
memcpy(ff, h1 + 1, NUM_SIZE_8 - 1);
uint8_t seed[NUM_SIZE_8 - 1 + NUM_SIZE_8 + NONCE_SIZE_8];
memcpy(seed, ff, NUM_SIZE_8 - 1);
memcpy(seed + NUM_SIZE_8 - 1, message, NUM_SIZE_8);
memcpy(seed + NUM_SIZE_8 - 1 + NUM_SIZE_8, beN, NONCE_SIZE_8);
GenIdex((const char*)seed, NUM_SIZE_8 - 1 + NUM_SIZE_8 + NONCE_SIZE_8, index,N_LEN);
uint8_t ret[32][NUM_SIZE_8];
int ll = sizeof(uint32_t) + CONST_MES_SIZE_8 + PK_SIZE_8 + NUM_SIZE_8 + PK_SIZE_8;
BIGNUM* bigsum = BN_new();
CALL(BN_dec2bn(&bigsum, "0"), ERROR_OPENSSL);
BIGNUM* bigres = BN_new();
CALL(BN_dec2bn(&bigres, "0"), ERROR_OPENSSL);
int rep = 0;
int off = 0;
uint8_t tmp[NUM_SIZE_8 - 1];
char hesStr[64 + 1];
uint8_t tmp2[4];
uint8_t tmp1[4];
unsigned char f[32];
memset(f, 0, 32);
char *LSUMM;
char *LB;
for (rep = 0; rep < 32; rep++)
{
memset(Hinput, 0, ll);
memcpy(tmp1, &index[rep], 4);
tmp2[0] = tmp1[3];
tmp2[1] = tmp1[2];
tmp2[2] = tmp1[1];
tmp2[3] = tmp1[0];
off = 0;
memcpy(Hinput + off, tmp2, sizeof(uint32_t));
off += sizeof(uint32_t);
memcpy(Hinput + off, beH, HEIGHT_SIZE);
off += HEIGHT_SIZE;
memcpy(Hinput + off, CONST_MESS, CONST_MES_SIZE_8);
off += CONST_MES_SIZE_8;
hashFn((const char *)Hinput, off, (uint8_t *)ret[rep]);
memcpy(tmp, &(ret[rep][1]), 31);
CALL(BN_bin2bn((const unsigned char *)tmp, 31, bigres), ERROR_OPENSSL);
CALL(BN_add(bigsum, bigsum, bigres), ERROR_OPENSSL);
LB = BN_bn2dec(bigres);
BN_bn2bin(bigsum, f);
}
const char *SUMMbigEndian = BN_bn2dec(bigsum);
BN_bn2bin(bigsum, f);
char bigendian2littl[32];
for (size_t i = 0; i < 32; i++)
{
bigendian2littl[i] = f[32 - i - 1];
}
BIGNUM* littleF = BN_new();
CALL(BN_bin2bn((const unsigned char *)bigendian2littl, 32, littleF), ERROR_OPENSSL);
const char *SUMMLittleEndian = BN_bn2dec(littleF);
char hf[32];
hashFn((const char *)f, 32, (uint8_t *)hf);
BIGNUM* bigHF = BN_new();
CALL(BN_bin2bn((const unsigned char *)hf, 32, bigHF), ERROR_OPENSSL);
char littl2big[32];
for (size_t i = 0; i < 32; i++)
{
littl2big[i] = bPool[32 - i - 1];
}
BIGNUM* bigB = BN_new();
CALL(BN_bin2bn((const unsigned char *)littl2big, 32, bigB), ERROR_OPENSSL);
int cmp = BN_cmp(bigHF, bigB);
const char *chD = BN_bn2dec(bigHF);
const char *chB = BN_bn2dec(bigB);
BN_free(bigsum);
BN_free(bigres);
BN_free(littleF);
BN_free(bigHF);
BN_free(bigB);
if (cmp < 0)
{
return true;
}
else
{
return false;
}
}