GOSTSec
/
ccminer-gostd-lite
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
419 Commits
1 Branch
55 Tags
65 MiB
Tree: 15584e4f05
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '15584e4f05'
${ noResults }
ccminer-gostd-lite/scrypt.cpp

1063 lines
33 KiB
Raw Normal View History Unescape

import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
/*
* Copyright 2009 Colin Percival, 2011 ArtForz, 2011-2013 pooler
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file was originally written by Colin Percival as part of the Tarsnap
* online backup system.
*/
#ifdef WIN32
#include <ppl.h>
using namespace Concurrency;
#else
#include <omp.h>
#endif
#include "miner.h"
#include "scrypt/salsa_kernel.h"
#include "scrypt/sha256.h"
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <emmintrin.h>
#include <malloc.h>
#include <new>
// A thin wrapper around the builtin __m128i type
class uint32x4_t
{
public:
#if WIN32
void * operator new(size_t size) _THROW1(_STD bad_alloc) { void *p; if ((p = _aligned_malloc(size, 16)) == 0) { static const std::bad_alloc nomem; _RAISE(nomem); } return (p); }
void operator delete(void *p) { _aligned_free(p); }
void * operator new[](size_t size) _THROW1(_STD bad_alloc) { void *p; if ((p = _aligned_malloc(size, 16)) == 0) { static const std::bad_alloc nomem; _RAISE(nomem); } return (p); }
void operator delete[](void *p) { _aligned_free(p); }
#else
void * operator new(size_t size) throw(std::bad_alloc) { void *p; if (posix_memalign(&p, 16, size) < 0) { static const std::bad_alloc nomem; throw nomem; } return (p); }
void operator delete(void *p) { free(p); }
void * operator new[](size_t size) throw(std::bad_alloc) { void *p; if (posix_memalign(&p, 16, size) < 0) { static const std::bad_alloc nomem; throw nomem; } return (p); }
void operator delete[](void *p) { free(p); }
#endif
uint32x4_t() { };
uint32x4_t(const __m128i init) { val = init; }
uint32x4_t(const uint32_t init) { val = _mm_set1_epi32((int)init); }
uint32x4_t(const uint32_t a, const uint32_t b, const uint32_t c, const uint32_t d) { val = _mm_setr_epi32((int)a,(int)b,(int)c,(int)d); }
inline operator const __m128i() const { return val; }
inline const uint32x4_t operator+(const uint32x4_t &other) const { return _mm_add_epi32(val, other); }
inline const uint32x4_t operator+(const uint32_t other) const { return _mm_add_epi32(val, _mm_set1_epi32((int)other)); }
inline uint32x4_t& operator+=(const uint32x4_t other) { val = _mm_add_epi32(val, other); return *this; }
inline uint32x4_t& operator+=(const uint32_t other) { val = _mm_add_epi32(val, _mm_set1_epi32((int)other)); return *this; }
inline const uint32x4_t operator&(const uint32_t other) const { return _mm_and_si128(val, _mm_set1_epi32((int)other)); }
inline const uint32x4_t operator&(const uint32x4_t &other) const { return _mm_and_si128(val, other); }
inline const uint32x4_t operator|(const uint32x4_t &other) const { return _mm_or_si128(val, other); }
inline const uint32x4_t operator^(const uint32x4_t &other) const { return _mm_xor_si128(val, other); }
inline const uint32x4_t operator<<(const int num) const { return _mm_slli_epi32(val, num); }
inline const uint32x4_t operator>>(const int num) const { return _mm_srli_epi32(val, num); }
inline const uint32_t operator[](const int num) const { return ((uint32_t*)&val)[num]; }
protected:
__m128i val;
};
// non-member overload
inline const uint32x4_t operator+(const uint32_t left, const uint32x4_t &right) { return _mm_add_epi32(_mm_set1_epi32((int)left), right); }
//
// Code taken from sha2.cpp and vectorized, with minimal changes where required
// Not all subroutines are actually used.
//
#define bswap_32x4(x) ((((x) << 24) & 0xff000000u) | (((x) << 8) & 0x00ff0000u) \
| (((x) >> 8) & 0x0000ff00u) | (((x) >> 24) & 0x000000ffu))
static __inline uint32x4_t swab32x4(const uint32x4_t &v)
{
return bswap_32x4(v);
}
static const uint32_t sha256_h[8] = {
0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
};
static const uint32_t sha256_k[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
};
void sha256_initx4(uint32x4_t *statex4)
{
for (int i=0; i<8; ++i)
statex4[i] = sha256_h[i];
}
/* Elementary functions used by SHA256 */
#define Ch(x, y, z) ((x & (y ^ z)) ^ z)
#define Maj(x, y, z) ((x & (y | z)) | (y & z))
#define ROTR(x, n) ((x >> n) | (x << (32 - n)))
#define S0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))
#define S1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
#define s0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ (x >> 3))
#define s1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ (x >> 10))
/* SHA256 round function */
#define RND(a, b, c, d, e, f, g, h, k) \
do { \
t0 = h + S1(e) + Ch(e, f, g) + k; \
t1 = S0(a) + Maj(a, b, c); \
d += t0; \
h = t0 + t1; \
} while (0)
/* Adjusted round function for rotating state */
#define RNDr(S, W, i) \
RND(S[(64 - i) % 8], S[(65 - i) % 8], \
S[(66 - i) % 8], S[(67 - i) % 8], \
S[(68 - i) % 8], S[(69 - i) % 8], \
S[(70 - i) % 8], S[(71 - i) % 8], \
W[i] + sha256_k[i])
/*
* SHA256 block compression function. The 256-bit state is transformed via
* the 512-bit input block to produce a new state.
*/
void sha256_transformx4(uint32x4_t *state, const uint32x4_t *block, int swap)
{
uint32x4_t W[64];
uint32x4_t S[8];
uint32x4_t t0, t1;
int i;
/* 1. Prepare message schedule W. */
if (swap) {
for (i = 0; i < 16; i++)
W[i] = swab32x4(block[i]);
} else
memcpy(W, block, 4*64);
for (i = 16; i < 64; i += 2) {
W[i] = s1(W[i - 2]) + W[i - 7] + s0(W[i - 15]) + W[i - 16];
W[i+1] = s1(W[i - 1]) + W[i - 6] + s0(W[i - 14]) + W[i - 15];
}
/* 2. Initialize working variables. */
memcpy(S, state, 4*32);
/* 3. Mix. */
RNDr(S, W, 0);
RNDr(S, W, 1);
RNDr(S, W, 2);
RNDr(S, W, 3);
RNDr(S, W, 4);
RNDr(S, W, 5);
RNDr(S, W, 6);
RNDr(S, W, 7);
RNDr(S, W, 8);
RNDr(S, W, 9);
RNDr(S, W, 10);
RNDr(S, W, 11);
RNDr(S, W, 12);
RNDr(S, W, 13);
RNDr(S, W, 14);
RNDr(S, W, 15);
RNDr(S, W, 16);
RNDr(S, W, 17);
RNDr(S, W, 18);
RNDr(S, W, 19);
RNDr(S, W, 20);
RNDr(S, W, 21);
RNDr(S, W, 22);
RNDr(S, W, 23);
RNDr(S, W, 24);
RNDr(S, W, 25);
RNDr(S, W, 26);
RNDr(S, W, 27);
RNDr(S, W, 28);
RNDr(S, W, 29);
RNDr(S, W, 30);
RNDr(S, W, 31);
RNDr(S, W, 32);
RNDr(S, W, 33);
RNDr(S, W, 34);
RNDr(S, W, 35);
RNDr(S, W, 36);
RNDr(S, W, 37);
RNDr(S, W, 38);
RNDr(S, W, 39);
RNDr(S, W, 40);
RNDr(S, W, 41);
RNDr(S, W, 42);
RNDr(S, W, 43);
RNDr(S, W, 44);
RNDr(S, W, 45);
RNDr(S, W, 46);
RNDr(S, W, 47);
RNDr(S, W, 48);
RNDr(S, W, 49);
RNDr(S, W, 50);
RNDr(S, W, 51);
RNDr(S, W, 52);
RNDr(S, W, 53);
RNDr(S, W, 54);
RNDr(S, W, 55);
RNDr(S, W, 56);
RNDr(S, W, 57);
RNDr(S, W, 58);
RNDr(S, W, 59);
RNDr(S, W, 60);
RNDr(S, W, 61);
RNDr(S, W, 62);
RNDr(S, W, 63);
/* 4. Mix local working variables into global state */
for (i = 0; i < 8; i++)
state[i] += S[i];
}
static const uint32_t sha256d_hash1[16] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x80000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000100
};
static void sha256dx4(uint32x4_t *hash, uint32x4_t *data)
{
uint32x4_t S[16];
sha256_initx4(S);
sha256_transformx4(S, data, 0);
sha256_transformx4(S, data + 16, 0);
for (int i=8; i<16; ++i)
S[i] = sha256d_hash1[i];
sha256_initx4(hash);
sha256_transformx4(hash, S, 0);
}
static inline void sha256d_preextendx4(uint32x4_t *W)
{
W[16] = s1(W[14]) + W[ 9] + s0(W[ 1]) + W[ 0];
W[17] = s1(W[15]) + W[10] + s0(W[ 2]) + W[ 1];
W[18] = s1(W[16]) + W[11] + W[ 2];
W[19] = s1(W[17]) + W[12] + s0(W[ 4]);
W[20] = W[13] + s0(W[ 5]) + W[ 4];
W[21] = W[14] + s0(W[ 6]) + W[ 5];
W[22] = W[15] + s0(W[ 7]) + W[ 6];
W[23] = W[16] + s0(W[ 8]) + W[ 7];
W[24] = W[17] + s0(W[ 9]) + W[ 8];
W[25] = s0(W[10]) + W[ 9];
W[26] = s0(W[11]) + W[10];
W[27] = s0(W[12]) + W[11];
W[28] = s0(W[13]) + W[12];
W[29] = s0(W[14]) + W[13];
W[30] = s0(W[15]) + W[14];
W[31] = s0(W[16]) + W[15];
}
static inline void sha256d_prehashx4(uint32x4_t *S, const uint32x4_t *W)
{
uint32x4_t t0, t1;
RNDr(S, W, 0);
RNDr(S, W, 1);
RNDr(S, W, 2);
}
static inline void sha256d_msx4(uint32x4_t *hash, uint32x4_t *W,
const uint32_t *midstate, const uint32_t *prehash)
{
uint32x4_t S[64];
uint32x4_t t0, t1;
int i;
S[18] = W[18];
S[19] = W[19];
S[20] = W[20];
S[22] = W[22];
S[23] = W[23];
S[24] = W[24];
S[30] = W[30];
S[31] = W[31];
W[18] += s0(W[3]);
W[19] += W[3];
W[20] += s1(W[18]);
W[21] = s1(W[19]);
W[22] += s1(W[20]);
W[23] += s1(W[21]);
W[24] += s1(W[22]);
W[25] = s1(W[23]) + W[18];
W[26] = s1(W[24]) + W[19];
W[27] = s1(W[25]) + W[20];
W[28] = s1(W[26]) + W[21];
W[29] = s1(W[27]) + W[22];
W[30] += s1(W[28]) + W[23];
W[31] += s1(W[29]) + W[24];
for (i = 32; i < 64; i += 2) {
W[i] = s1(W[i - 2]) + W[i - 7] + s0(W[i - 15]) + W[i - 16];
W[i+1] = s1(W[i - 1]) + W[i - 6] + s0(W[i - 14]) + W[i - 15];
}
for (i=0; i<8; ++i)
S[i] = prehash[i];
RNDr(S, W, 3);
RNDr(S, W, 4);
RNDr(S, W, 5);
RNDr(S, W, 6);
RNDr(S, W, 7);
RNDr(S, W, 8);
RNDr(S, W, 9);
RNDr(S, W, 10);
RNDr(S, W, 11);
RNDr(S, W, 12);
RNDr(S, W, 13);
RNDr(S, W, 14);
RNDr(S, W, 15);
RNDr(S, W, 16);
RNDr(S, W, 17);
RNDr(S, W, 18);
RNDr(S, W, 19);
RNDr(S, W, 20);
RNDr(S, W, 21);
RNDr(S, W, 22);
RNDr(S, W, 23);
RNDr(S, W, 24);
RNDr(S, W, 25);
RNDr(S, W, 26);
RNDr(S, W, 27);
RNDr(S, W, 28);
RNDr(S, W, 29);
RNDr(S, W, 30);
RNDr(S, W, 31);
RNDr(S, W, 32);
RNDr(S, W, 33);
RNDr(S, W, 34);
RNDr(S, W, 35);
RNDr(S, W, 36);
RNDr(S, W, 37);
RNDr(S, W, 38);
RNDr(S, W, 39);
RNDr(S, W, 40);
RNDr(S, W, 41);
RNDr(S, W, 42);
RNDr(S, W, 43);
RNDr(S, W, 44);
RNDr(S, W, 45);
RNDr(S, W, 46);
RNDr(S, W, 47);
RNDr(S, W, 48);
RNDr(S, W, 49);
RNDr(S, W, 50);
RNDr(S, W, 51);
RNDr(S, W, 52);
RNDr(S, W, 53);
RNDr(S, W, 54);
RNDr(S, W, 55);
RNDr(S, W, 56);
RNDr(S, W, 57);
RNDr(S, W, 58);
RNDr(S, W, 59);
RNDr(S, W, 60);
RNDr(S, W, 61);
RNDr(S, W, 62);
RNDr(S, W, 63);
for (i = 0; i < 8; i++)
S[i] += midstate[i];
W[18] = S[18];
W[19] = S[19];
W[20] = S[20];
W[22] = S[22];
W[23] = S[23];
W[24] = S[24];
W[30] = S[30];
W[31] = S[31];
for (i=8; i<16; ++i)
S[i] = sha256d_hash1[i];
S[16] = s1(sha256d_hash1[14]) + sha256d_hash1[ 9] + s0(S[ 1]) + S[ 0];
S[17] = s1(sha256d_hash1[15]) + sha256d_hash1[10] + s0(S[ 2]) + S[ 1];
S[18] = s1(S[16]) + sha256d_hash1[11] + s0(S[ 3]) + S[ 2];
S[19] = s1(S[17]) + sha256d_hash1[12] + s0(S[ 4]) + S[ 3];
S[20] = s1(S[18]) + sha256d_hash1[13] + s0(S[ 5]) + S[ 4];
S[21] = s1(S[19]) + sha256d_hash1[14] + s0(S[ 6]) + S[ 5];
S[22] = s1(S[20]) + sha256d_hash1[15] + s0(S[ 7]) + S[ 6];
S[23] = s1(S[21]) + S[16] + s0(sha256d_hash1[ 8]) + S[ 7];
S[24] = s1(S[22]) + S[17] + s0(sha256d_hash1[ 9]) + sha256d_hash1[ 8];
S[25] = s1(S[23]) + S[18] + s0(sha256d_hash1[10]) + sha256d_hash1[ 9];
S[26] = s1(S[24]) + S[19] + s0(sha256d_hash1[11]) + sha256d_hash1[10];
S[27] = s1(S[25]) + S[20] + s0(sha256d_hash1[12]) + sha256d_hash1[11];
S[28] = s1(S[26]) + S[21] + s0(sha256d_hash1[13]) + sha256d_hash1[12];
S[29] = s1(S[27]) + S[22] + s0(sha256d_hash1[14]) + sha256d_hash1[13];
S[30] = s1(S[28]) + S[23] + s0(sha256d_hash1[15]) + sha256d_hash1[14];
S[31] = s1(S[29]) + S[24] + s0(S[16]) + sha256d_hash1[15];
for (i = 32; i < 60; i += 2) {
S[i] = s1(S[i - 2]) + S[i - 7] + s0(S[i - 15]) + S[i - 16];
S[i+1] = s1(S[i - 1]) + S[i - 6] + s0(S[i - 14]) + S[i - 15];
}
S[60] = s1(S[58]) + S[53] + s0(S[45]) + S[44];
sha256_initx4(hash);
RNDr(hash, S, 0);
RNDr(hash, S, 1);
RNDr(hash, S, 2);
RNDr(hash, S, 3);
RNDr(hash, S, 4);
RNDr(hash, S, 5);
RNDr(hash, S, 6);
RNDr(hash, S, 7);
RNDr(hash, S, 8);
RNDr(hash, S, 9);
RNDr(hash, S, 10);
RNDr(hash, S, 11);
RNDr(hash, S, 12);
RNDr(hash, S, 13);
RNDr(hash, S, 14);
RNDr(hash, S, 15);
RNDr(hash, S, 16);
RNDr(hash, S, 17);
RNDr(hash, S, 18);
RNDr(hash, S, 19);
RNDr(hash, S, 20);
RNDr(hash, S, 21);
RNDr(hash, S, 22);
RNDr(hash, S, 23);
RNDr(hash, S, 24);
RNDr(hash, S, 25);
RNDr(hash, S, 26);
RNDr(hash, S, 27);
RNDr(hash, S, 28);
RNDr(hash, S, 29);
RNDr(hash, S, 30);
RNDr(hash, S, 31);
RNDr(hash, S, 32);
RNDr(hash, S, 33);
RNDr(hash, S, 34);
RNDr(hash, S, 35);
RNDr(hash, S, 36);
RNDr(hash, S, 37);
RNDr(hash, S, 38);
RNDr(hash, S, 39);
RNDr(hash, S, 40);
RNDr(hash, S, 41);
RNDr(hash, S, 42);
RNDr(hash, S, 43);
RNDr(hash, S, 44);
RNDr(hash, S, 45);
RNDr(hash, S, 46);
RNDr(hash, S, 47);
RNDr(hash, S, 48);
RNDr(hash, S, 49);
RNDr(hash, S, 50);
RNDr(hash, S, 51);
RNDr(hash, S, 52);
RNDr(hash, S, 53);
RNDr(hash, S, 54);
RNDr(hash, S, 55);
RNDr(hash, S, 56);
hash[2] += hash[6] + S1(hash[3]) + Ch(hash[3], hash[4], hash[5])
+ S[57] + sha256_k[57];
hash[1] += hash[5] + S1(hash[2]) + Ch(hash[2], hash[3], hash[4])
+ S[58] + sha256_k[58];
hash[0] += hash[4] + S1(hash[1]) + Ch(hash[1], hash[2], hash[3])
+ S[59] + sha256_k[59];
hash[7] += hash[3] + S1(hash[0]) + Ch(hash[0], hash[1], hash[2])
+ S[60] + sha256_k[60]
+ sha256_h[7];
}
//
// Code taken from original scrypt.cpp and vectorized with minimal changes.
//
static const uint32x4_t keypadx4[12] = {
0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x00000280
};
static const uint32x4_t innerpadx4[11] = {
0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x000004a0
};
static const uint32x4_t outerpadx4[8] = {
0x80000000, 0, 0, 0, 0, 0, 0, 0x00000300
};
static const uint32x4_t finalblkx4[16] = {
0x00000001, 0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x00000620
};
static inline void HMAC_SHA256_80_initx4(const uint32x4_t *key,
uint32x4_t *tstate, uint32x4_t *ostate)
{
uint32x4_t ihash[8];
uint32x4_t pad[16];
int i;
/* tstate is assumed to contain the midstate of key */
memcpy(pad, key + 16, 4*16);
memcpy(pad + 4, keypadx4, 4*48);
sha256_transformx4(tstate, pad, 0);
memcpy(ihash, tstate, 4*32);
sha256_initx4(ostate);
for (i = 0; i < 8; i++)
pad[i] = ihash[i] ^ 0x5c5c5c5c;
for (; i < 16; i++)
pad[i] = 0x5c5c5c5c;
sha256_transformx4(ostate, pad, 0);
sha256_initx4(tstate);
for (i = 0; i < 8; i++)
pad[i] = ihash[i] ^ 0x36363636;
for (; i < 16; i++)
pad[i] = 0x36363636;
sha256_transformx4(tstate, pad, 0);
}
static inline void PBKDF2_SHA256_80_128x4(const uint32x4_t *tstate,
const uint32x4_t *ostate, const uint32x4_t *salt, uint32x4_t *output)
{
uint32x4_t istate[8], ostate2[8];
uint32x4_t ibuf[16], obuf[16];
int i, j;
memcpy(istate, tstate, 4*32);
sha256_transformx4(istate, salt, 0);
memcpy(ibuf, salt + 16, 4*16);
memcpy(ibuf + 5, innerpadx4, 4*44);
memcpy(obuf + 8, outerpadx4, 4*32);
for (i = 0; i < 4; i++) {
memcpy(obuf, istate, 4*32);
ibuf[4] = i + 1;
sha256_transformx4(obuf, ibuf, 0);
memcpy(ostate2, ostate, 4*32);
sha256_transformx4(ostate2, obuf, 0);
for (j = 0; j < 8; j++)
output[8 * i + j] = swab32x4(ostate2[j]);
}
}
static inline void PBKDF2_SHA256_128_32x4(uint32x4_t *tstate, uint32x4_t *ostate,
const uint32x4_t *salt, uint32x4_t *output)
{
uint32x4_t buf[16];
int i;
sha256_transformx4(tstate, salt, 1);
sha256_transformx4(tstate, salt + 16, 1);
sha256_transformx4(tstate, finalblkx4, 0);
memcpy(buf, tstate, 4*32);
memcpy(buf + 8, outerpadx4, 4*32);
sha256_transformx4(ostate, buf, 0);
for (i = 0; i < 8; i++)
output[i] = swab32x4(ostate[i]);
}
//
// Original scrypt.cpp HMAC SHA256 functions
//
static const uint32_t keypad[12] = {
0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x00000280
};
static const uint32_t innerpad[11] = {
0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x000004a0
};
static const uint32_t outerpad[8] = {
0x80000000, 0, 0, 0, 0, 0, 0, 0x00000300
};
static const uint32_t finalblk[16] = {
0x00000001, 0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x00000620
};
static inline void HMAC_SHA256_80_init(const uint32_t *key,
uint32_t *tstate, uint32_t *ostate)
{
uint32_t ihash[8];
uint32_t pad[16];
int i;
/* tstate is assumed to contain the midstate of key */
memcpy(pad, key + 16, 16);
memcpy(pad + 4, keypad, 48);
sha256_transform(tstate, pad, 0);
memcpy(ihash, tstate, 32);
sha256_init(ostate);
for (i = 0; i < 8; i++)
pad[i] = ihash[i] ^ 0x5c5c5c5c;
for (; i < 16; i++)
pad[i] = 0x5c5c5c5c;
sha256_transform(ostate, pad, 0);
sha256_init(tstate);
for (i = 0; i < 8; i++)
pad[i] = ihash[i] ^ 0x36363636;
for (; i < 16; i++)
pad[i] = 0x36363636;
sha256_transform(tstate, pad, 0);
}
static inline void PBKDF2_SHA256_80_128(const uint32_t *tstate,
const uint32_t *ostate, const uint32_t *salt, uint32_t *output)
{
uint32_t istate[8], ostate2[8];
uint32_t ibuf[16], obuf[16];
int i, j;
memcpy(istate, tstate, 32);
sha256_transform(istate, salt, 0);
memcpy(ibuf, salt + 16, 16);
memcpy(ibuf + 5, innerpad, 44);
memcpy(obuf + 8, outerpad, 32);
for (i = 0; i < 4; i++) {
memcpy(obuf, istate, 32);
ibuf[4] = i + 1;
sha256_transform(obuf, ibuf, 0);
memcpy(ostate2, ostate, 32);
sha256_transform(ostate2, obuf, 0);
for (j = 0; j < 8; j++)
output[8 * i + j] = swab32(ostate2[j]);
}
}
static inline void PBKDF2_SHA256_128_32(uint32_t *tstate, uint32_t *ostate,
const uint32_t *salt, uint32_t *output)
{
uint32_t buf[16];
sha256_transform(tstate, salt, 1);
sha256_transform(tstate, salt + 16, 1);
sha256_transform(tstate, finalblk, 0);
memcpy(buf, tstate, 32);
memcpy(buf + 8, outerpad, 32);
sha256_transform(ostate, buf, 0);
for (int i = 0; i < 8; i++)
output[i] = swab32(ostate[i]);
}
static int lastFactor = 0;
scrypt: finish scrypt-jane algo import
10 years ago
static void computeGold(uint32_t* const input, uint32_t *reference, uchar *scratchpad);
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
// Scrypt proof of work algorithm
// using SSE2 vectorized HMAC SHA256 on CPU and
// a salsa core implementation on GPU with CUDA
//
int scanhash_scrypt(int thr_id, uint32_t *pdata, const uint32_t *ptarget, unsigned char *scratchbuf,
uint32_t max_nonce, unsigned long *hashes_done, struct timeval *tv_start, struct timeval *tv_end)
{
int result = 0;
int throughput = cuda_throughput(thr_id);
if(throughput == 0)
return -1;
gettimeofday(tv_start, NULL);
uint32_t n = pdata[19];
const uint32_t Htarg = ptarget[7];
// no default set with --cputest
if (opt_nfactor == 0) opt_nfactor = 9;
uint32_t N = (1UL<<(opt_nfactor+1));
uint32_t *scratch = new uint32_t[N*32]; // scratchbuffer for CPU based validation
uint32_t nonce[2];
uint32_t* hash[2] = { cuda_hashbuffer(thr_id,0), cuda_hashbuffer(thr_id,1) };
uint32_t* X[2] = { cuda_transferbuffer(thr_id,0), cuda_transferbuffer(thr_id,1) };
bool sha_on_cpu = (parallel < 2);
bool sha_multithreaded = (parallel == 1);
uint32x4_t* datax4[2] = { sha_on_cpu ? new uint32x4_t[throughput/4 * 20] : NULL, sha_on_cpu ? new uint32x4_t[throughput/4 * 20] : NULL };
uint32x4_t* hashx4[2] = { sha_on_cpu ? new uint32x4_t[throughput/4 * 8] : NULL, sha_on_cpu ? new uint32x4_t[throughput/4 * 8] : NULL };
uint32x4_t* tstatex4[2] = { sha_on_cpu ? new uint32x4_t[throughput/4 * 8] : NULL, sha_on_cpu ? new uint32x4_t[throughput/4 * 8] : NULL };
uint32x4_t* ostatex4[2] = { sha_on_cpu ? new uint32x4_t[throughput/4 * 8] : NULL, sha_on_cpu ? new uint32x4_t[throughput/4 * 8] : NULL };
uint32x4_t* Xx4[2] = { sha_on_cpu ? new uint32x4_t[throughput/4 * 32] : NULL, sha_on_cpu ? new uint32x4_t[throughput/4 * 32] : NULL };
// log n-factor
if (!opt_quiet && lastFactor != opt_nfactor) {
applog(LOG_WARNING, "scrypt factor set to %d (%u)", opt_nfactor, N);
lastFactor = opt_nfactor;
}
uint32_t _ALIGN(64) midstate[8];
sha256_init(midstate);
sha256_transform(midstate, pdata, 0);
if (sha_on_cpu) {
for (int i = 0; i < throughput/4; ++i) {
for (int j = 0; j < 20; j++) {
datax4[0][20*i+j] = uint32x4_t(pdata[j]);
datax4[1][20*i+j] = uint32x4_t(pdata[j]);
}
}
}
else prepare_sha256(thr_id, pdata, midstate);
int cur = 1, nxt = 0;
int iteration = 0;
int num_shares = (4*opt_n_threads) || 1; // opt_n_threads can be 0 with --cputest
int share_workload = ((((throughput + num_shares-1) / num_shares) + 3) / 4) * 4;
do {
nonce[nxt] = n;
if (sha_on_cpu)
{
for (int i = 0; i < throughput/4; i++) {
datax4[nxt][i * 20 + 19] = uint32x4_t(n+0, n+1, n+2, n+3);
n += 4;
}
if (sha_multithreaded)
{
#ifdef WIN32
parallel_for (0, num_shares, [&](int share) {
for (int k = (share_workload*share)/4; k < (share_workload*(share+1))/4 && k < throughput/4; k++) {
for (int l = 0; l < 8; l++)
tstatex4[nxt][k * 8 + l] = uint32x4_t(midstate[l]);
HMAC_SHA256_80_initx4(&datax4[nxt][k * 20], &tstatex4[nxt][k * 8], &ostatex4[nxt][k * 8]);
PBKDF2_SHA256_80_128x4(&tstatex4[nxt][k * 8], &ostatex4[nxt][k * 8], &datax4[nxt][k * 20], &Xx4[nxt][k * 32]);
}
} );
#else
#pragma omp parallel for
for (int share = 0; share < num_shares; share++) {
for (int k = (share_workload*share)/4; k < (share_workload*(share+1))/4 && k < throughput/4; k++) {
for (int l = 0; l < 8; l++)
tstatex4[nxt][k * 8 + l] = uint32x4_t(midstate[l]);
HMAC_SHA256_80_initx4(&datax4[nxt][k * 20], &tstatex4[nxt][k * 8], &ostatex4[nxt][k * 8]);
PBKDF2_SHA256_80_128x4(&tstatex4[nxt][k * 8], &ostatex4[nxt][k * 8], &datax4[nxt][k * 20], &Xx4[nxt][k * 32]);
}
}
#endif
}
else /* sha_multithreaded */
{
for (int k = 0; k < throughput/4; k++) {
for (int l = 0; l < 8; l++)
tstatex4[nxt][k * 8 + l] = uint32x4_t(midstate[l]);
HMAC_SHA256_80_initx4(&datax4[nxt][k * 20], &tstatex4[nxt][k * 8], &ostatex4[nxt][k * 8]);
PBKDF2_SHA256_80_128x4(&tstatex4[nxt][k * 8], &ostatex4[nxt][k * 8], &datax4[nxt][k * 20], &Xx4[nxt][k * 32]);
}
}
for (int i = 0; i < throughput/4; i++) {
for (int j = 0; j < 32; j++) {
uint32x4_t &t = Xx4[nxt][i * 32 + j];
X[nxt][(4*i+0)*32+j] = t[0]; X[nxt][(4*i+1)*32+j] = t[1];
X[nxt][(4*i+2)*32+j] = t[2]; X[nxt][(4*i+3)*32+j] = t[3];
}
}
cuda_scrypt_serialize(thr_id, nxt);
cuda_scrypt_HtoD(thr_id, X[nxt], nxt);
cuda_scrypt_core(thr_id, nxt, N);
cuda_scrypt_done(thr_id, nxt);
cuda_scrypt_DtoH(thr_id, X[nxt], nxt, false);
cuda_scrypt_flush(thr_id, nxt);
if(!cuda_scrypt_sync(thr_id, cur))
{
result = -1;
break;
}
for (int i = 0; i < throughput/4; i++) {
for (int j = 0; j < 32; j++) {
Xx4[cur][i * 32 + j] = uint32x4_t(
X[cur][(4*i+0)*32+j], X[cur][(4*i+1)*32+j],
X[cur][(4*i+2)*32+j], X[cur][(4*i+3)*32+j]
);
}
}
if (sha_multithreaded)
{
#ifdef WIN32
parallel_for (0, num_shares, [&](int share) {
for (int k = (share_workload*share)/4; k < (share_workload*(share+1))/4 && k < throughput/4; k++) {
PBKDF2_SHA256_128_32x4(&tstatex4[cur][k * 8], &ostatex4[cur][k * 8], &Xx4[cur][k * 32], &hashx4[cur][k * 8]);
}
} );
#else
#pragma omp parallel for
for (int share = 0; share < num_shares; share++) {
for (int k = (share_workload*share)/4; k < (share_workload*(share+1))/4 && k < throughput/4; k++) {
PBKDF2_SHA256_128_32x4(&tstatex4[cur][k * 8], &ostatex4[cur][k * 8], &Xx4[cur][k * 32], &hashx4[cur][k * 8]);
}
}
#endif
} else {
for (int k = 0; k < throughput/4; k++) {
PBKDF2_SHA256_128_32x4(&tstatex4[cur][k * 8], &ostatex4[cur][k * 8], &Xx4[cur][k * 32], &hashx4[cur][k * 8]);
}
}
for (int i = 0; i < throughput/4; i++) {
for (int j = 0; j < 8; j++) {
uint32x4_t &t = hashx4[cur][i * 8 + j];
hash[cur][(4*i+0)*8+j] = t[0]; hash[cur][(4*i+1)*8+j] = t[1];
hash[cur][(4*i+2)*8+j] = t[2]; hash[cur][(4*i+3)*8+j] = t[3];
}
}
}
else /* sha_on_cpu */
{
n += throughput;
cuda_scrypt_serialize(thr_id, nxt);
pre_sha256(thr_id, nxt, nonce[nxt], throughput);
cuda_scrypt_core(thr_id, nxt, N);
cuda_scrypt_flush(thr_id, nxt); // required here ?
post_sha256(thr_id, nxt, throughput);
cuda_scrypt_done(thr_id, nxt);
cuda_scrypt_DtoH(thr_id, hash[nxt], nxt, true);
cuda_scrypt_flush(thr_id, nxt); // required here ?
if (!cuda_scrypt_sync(thr_id, cur)) {
printf("error\n");
result = -1;
break;
}
}
if (iteration > 0 || opt_n_threads == 0)
{
for (int i = 0; i < throughput; i++)
{
if (hash[cur][i * 8 + 7] <= Htarg && fulltest(hash[cur] + i * 8, ptarget))
{
// CPU based validation to rule out GPU errors (scalar CPU code)
uint32_t _ALIGN(64) inp[32], ref[32], tstate[8], ostate[8], refhash[8], ldata[20];
memcpy(ldata, pdata, 80); ldata[19] = nonce[cur] + i;
memcpy(tstate, midstate, 32);
HMAC_SHA256_80_init(ldata, tstate, ostate);
PBKDF2_SHA256_80_128(tstate, ostate, ldata, inp);
computeGold(inp, ref, (uchar*)scratch);
bool good = true;
if (sha_on_cpu) {
if (memcmp(&X[cur][i * 32], ref, 32*sizeof(uint32_t)) != 0) good = false;
} else {
PBKDF2_SHA256_128_32(tstate, ostate, ref, refhash);
if (memcmp(&hash[cur][i * 8], refhash, 32) != 0) good = false;
}
warnings: use the right device id (device_map[thr_id])
10 years ago
if (!good) {
applog(LOG_WARNING, "GPU #%d: %s result does not validate on CPU! (i=%d, s=%d)",
device_map[thr_id], device_name[thr_id], i, cur);
} else {
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
*hashes_done = n - pdata[19];
pdata[19] = nonce[cur] + i;
result = 1;
goto byebye;
}
}
}
}
cur = (cur+1)&1;
nxt = (nxt+1)&1;
++iteration;
//printf("n=%d, thr=%d, max=%d, rest=%d\n", n, throughput, max_nonce, work_restart[thr_id].restart);
} while (n <= max_nonce && !work_restart[thr_id].restart);
*hashes_done = n - pdata[19];
pdata[19] = n;
byebye:
delete[] datax4[0]; delete[] datax4[1]; delete[] hashx4[0]; delete[] hashx4[1];
delete[] tstatex4[0]; delete[] tstatex4[1]; delete[] ostatex4[0]; delete[] ostatex4[1];
delete[] Xx4[0]; delete[] Xx4[1];
delete [] scratch;
gettimeofday(tv_end, NULL);
return result;
}
#define ROTL(a, b) (((a) << (b)) | ((a) >> (32 - (b))))
static void xor_salsa8(uint32_t * const B, const uint32_t * const C)
{
uint32_t x0 = (B[ 0] ^= C[ 0]), x1 = (B[ 1] ^= C[ 1]), x2 = (B[ 2] ^= C[ 2]), x3 = (B[ 3] ^= C[ 3]);
uint32_t x4 = (B[ 4] ^= C[ 4]), x5 = (B[ 5] ^= C[ 5]), x6 = (B[ 6] ^= C[ 6]), x7 = (B[ 7] ^= C[ 7]);
uint32_t x8 = (B[ 8] ^= C[ 8]), x9 = (B[ 9] ^= C[ 9]), xa = (B[10] ^= C[10]), xb = (B[11] ^= C[11]);
uint32_t xc = (B[12] ^= C[12]), xd = (B[13] ^= C[13]), xe = (B[14] ^= C[14]), xf = (B[15] ^= C[15]);
/* Operate on columns. */
x4 ^= ROTL(x0 + xc, 7); x9 ^= ROTL(x5 + x1, 7); xe ^= ROTL(xa + x6, 7); x3 ^= ROTL(xf + xb, 7);
x8 ^= ROTL(x4 + x0, 9); xd ^= ROTL(x9 + x5, 9); x2 ^= ROTL(xe + xa, 9); x7 ^= ROTL(x3 + xf, 9);
xc ^= ROTL(x8 + x4, 13); x1 ^= ROTL(xd + x9, 13); x6 ^= ROTL(x2 + xe, 13); xb ^= ROTL(x7 + x3, 13);
x0 ^= ROTL(xc + x8, 18); x5 ^= ROTL(x1 + xd, 18); xa ^= ROTL(x6 + x2, 18); xf ^= ROTL(xb + x7, 18);
/* Operate on rows. */
x1 ^= ROTL(x0 + x3, 7); x6 ^= ROTL(x5 + x4, 7); xb ^= ROTL(xa + x9, 7); xc ^= ROTL(xf + xe, 7);
x2 ^= ROTL(x1 + x0, 9); x7 ^= ROTL(x6 + x5, 9); x8 ^= ROTL(xb + xa, 9); xd ^= ROTL(xc + xf, 9);
x3 ^= ROTL(x2 + x1, 13); x4 ^= ROTL(x7 + x6, 13); x9 ^= ROTL(x8 + xb, 13); xe ^= ROTL(xd + xc, 13);
x0 ^= ROTL(x3 + x2, 18); x5 ^= ROTL(x4 + x7, 18); xa ^= ROTL(x9 + x8, 18); xf ^= ROTL(xe + xd, 18);
/* Operate on columns. */
x4 ^= ROTL(x0 + xc, 7); x9 ^= ROTL(x5 + x1, 7); xe ^= ROTL(xa + x6, 7); x3 ^= ROTL(xf + xb, 7);
x8 ^= ROTL(x4 + x0, 9); xd ^= ROTL(x9 + x5, 9); x2 ^= ROTL(xe + xa, 9); x7 ^= ROTL(x3 + xf, 9);
xc ^= ROTL(x8 + x4, 13); x1 ^= ROTL(xd + x9, 13); x6 ^= ROTL(x2 + xe, 13); xb ^= ROTL(x7 + x3, 13);
x0 ^= ROTL(xc + x8, 18); x5 ^= ROTL(x1 + xd, 18); xa ^= ROTL(x6 + x2, 18); xf ^= ROTL(xb + x7, 18);
/* Operate on rows. */
x1 ^= ROTL(x0 + x3, 7); x6 ^= ROTL(x5 + x4, 7); xb ^= ROTL(xa + x9, 7); xc ^= ROTL(xf + xe, 7);
x2 ^= ROTL(x1 + x0, 9); x7 ^= ROTL(x6 + x5, 9); x8 ^= ROTL(xb + xa, 9); xd ^= ROTL(xc + xf, 9);
x3 ^= ROTL(x2 + x1, 13); x4 ^= ROTL(x7 + x6, 13); x9 ^= ROTL(x8 + xb, 13); xe ^= ROTL(xd + xc, 13);
x0 ^= ROTL(x3 + x2, 18); x5 ^= ROTL(x4 + x7, 18); xa ^= ROTL(x9 + x8, 18); xf ^= ROTL(xe + xd, 18);
/* Operate on columns. */
x4 ^= ROTL(x0 + xc, 7); x9 ^= ROTL(x5 + x1, 7); xe ^= ROTL(xa + x6, 7); x3 ^= ROTL(xf + xb, 7);
x8 ^= ROTL(x4 + x0, 9); xd ^= ROTL(x9 + x5, 9); x2 ^= ROTL(xe + xa, 9); x7 ^= ROTL(x3 + xf, 9);
xc ^= ROTL(x8 + x4, 13); x1 ^= ROTL(xd + x9, 13); x6 ^= ROTL(x2 + xe, 13); xb ^= ROTL(x7 + x3, 13);
x0 ^= ROTL(xc + x8, 18); x5 ^= ROTL(x1 + xd, 18); xa ^= ROTL(x6 + x2, 18); xf ^= ROTL(xb + x7, 18);
/* Operate on rows. */
x1 ^= ROTL(x0 + x3, 7); x6 ^= ROTL(x5 + x4, 7); xb ^= ROTL(xa + x9, 7); xc ^= ROTL(xf + xe, 7);
x2 ^= ROTL(x1 + x0, 9); x7 ^= ROTL(x6 + x5, 9); x8 ^= ROTL(xb + xa, 9); xd ^= ROTL(xc + xf, 9);
x3 ^= ROTL(x2 + x1, 13); x4 ^= ROTL(x7 + x6, 13); x9 ^= ROTL(x8 + xb, 13); xe ^= ROTL(xd + xc, 13);
x0 ^= ROTL(x3 + x2, 18); x5 ^= ROTL(x4 + x7, 18); xa ^= ROTL(x9 + x8, 18); xf ^= ROTL(xe + xd, 18);
/* Operate on columns. */
x4 ^= ROTL(x0 + xc, 7); x9 ^= ROTL(x5 + x1, 7); xe ^= ROTL(xa + x6, 7); x3 ^= ROTL(xf + xb, 7);
x8 ^= ROTL(x4 + x0, 9); xd ^= ROTL(x9 + x5, 9); x2 ^= ROTL(xe + xa, 9); x7 ^= ROTL(x3 + xf, 9);
xc ^= ROTL(x8 + x4, 13); x1 ^= ROTL(xd + x9, 13); x6 ^= ROTL(x2 + xe, 13); xb ^= ROTL(x7 + x3, 13);
x0 ^= ROTL(xc + x8, 18); x5 ^= ROTL(x1 + xd, 18); xa ^= ROTL(x6 + x2, 18); xf ^= ROTL(xb + x7, 18);
/* Operate on rows. */
x1 ^= ROTL(x0 + x3, 7); x6 ^= ROTL(x5 + x4, 7); xb ^= ROTL(xa + x9, 7); xc ^= ROTL(xf + xe, 7);
x2 ^= ROTL(x1 + x0, 9); x7 ^= ROTL(x6 + x5, 9); x8 ^= ROTL(xb + xa, 9); xd ^= ROTL(xc + xf, 9);
x3 ^= ROTL(x2 + x1, 13); x4 ^= ROTL(x7 + x6, 13); x9 ^= ROTL(x8 + xb, 13); xe ^= ROTL(xd + xc, 13);
x0 ^= ROTL(x3 + x2, 18); x5 ^= ROTL(x4 + x7, 18); xa ^= ROTL(x9 + x8, 18); xf ^= ROTL(xe + xd, 18);
B[ 0] += x0; B[ 1] += x1; B[ 2] += x2; B[ 3] += x3; B[ 4] += x4; B[ 5] += x5; B[ 6] += x6; B[ 7] += x7;
B[ 8] += x8; B[ 9] += x9; B[10] += xa; B[11] += xb; B[12] += xc; B[13] += xd; B[14] += xe; B[15] += xf;
}
/**
* @param X input/ouput
* @param V scratch buffer
scrypt: finish scrypt-jane algo import
10 years ago
* @param N factor (def. 1024)
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
*/
scrypt: finish scrypt-jane algo import
10 years ago
static void scrypt_core(uint32_t *X, uint32_t *V, uint32_t N)
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
{
scrypt: strip keccak/blake 256 remains
10 years ago
for (uint32_t i = 0; i < N; i++) {
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
memcpy(&V[i * 32], X, 128);
xor_salsa8(&X[0], &X[16]);
xor_salsa8(&X[16], &X[0]);
}
scrypt: strip keccak/blake 256 remains
10 years ago
for (uint32_t i = 0; i < N; i++) {
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
uint32_t j = 32 * (X[16] & (N - 1));
for (uint8_t k = 0; k < 32; k++)
X[k] ^= V[j + k];
xor_salsa8(&X[0], &X[16]);
xor_salsa8(&X[16], &X[0]);
}
}
/**
* Compute reference data set on the CPU
* @param input input data as provided to device
* @param reference reference data, computed but preallocated
* @param scratchpad scrypt scratchpad
**/
scrypt: finish scrypt-jane algo import
10 years ago
static void computeGold(uint32_t* const input, uint32_t *reference, uchar *scratchpad)
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
{
uint32_t X[32] = { 0 };
uint32_t *V = (uint32_t*) scratchpad;
scrypt: finish scrypt-jane algo import
10 years ago
uint32_t N = (1<<(opt_nfactor+1)); // default 9 = 1024
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
for (int k = 0; k < 32; k++)
X[k] = input[k];
scrypt_core(X, V, N);
for (int k = 0; k < 32; k++)
reference[k] = X[k];
}
/* cputest */
void scrypthash(void* output, const void* input)
{
uint32_t _ALIGN(64) X[32], ref[32] = { 0 }, tstate[8], ostate[8], midstate[8];
uint32_t _ALIGN(64) data[20];
scrypt: finish scrypt-jane algo import
10 years ago
uchar *scratchbuf;
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
// no default set with --cputest
if (opt_nfactor == 0) opt_nfactor = 9;
scrypt: finish scrypt-jane algo import
10 years ago
scratchbuf = (uchar*) calloc(4 * 128 + 63, 1UL << (opt_nfactor+1));
import and adapt scrypt from cudaminer project scrypt-jane under work...
10 years ago
memcpy(data, input, 80);
sha256_init(midstate);
sha256_transform(midstate, data, 0); /* ok */
memcpy(tstate, midstate, 32);
HMAC_SHA256_80_init(data, tstate, ostate);
PBKDF2_SHA256_80_128(tstate, ostate, data, X); /* ok */
if (scratchbuf) {
computeGold(X, ref, scratchbuf);
PBKDF2_SHA256_128_32(tstate, ostate, ref, (uint32_t*) output);
} else {
memset(output, 0, 32);
}
free(scratchbuf);
}