mirror of https://github.com/GOSTSec/sgminer
elbandi
9 years ago
8 changed files with 418 additions and 77 deletions
@ -1,9 +1,9 @@ |
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#ifndef BLAKE_H |
#ifndef BLAKE256_H |
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#define BLAKE_H |
#define BLAKE256_H |
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#include "miner.h" |
#include "miner.h" |
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extern int blake_test(unsigned char *pdata, const unsigned char *ptarget, uint32_t nonce); |
extern int blake256_test(unsigned char *pdata, const unsigned char *ptarget, uint32_t nonce); |
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extern void blake_regenhash(struct work *work); |
extern void blake256_regenhash(struct work *work); |
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#endif /* BLAKE_H */ |
#endif /* BLAKE256_H */ |
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/*
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* BLAKE implementation. |
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* |
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* ==========================(LICENSE BEGIN)============================ |
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* |
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* Copyright (c) 2007-2010 Projet RNRT SAPHIR |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files (the |
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* "Software"), to deal in the Software without restriction, including |
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* without limitation the rights to use, copy, modify, merge, publish, |
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* distribute, sublicense, and/or sell copies of the Software, and to |
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* permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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* |
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* ===========================(LICENSE END)============================= |
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* |
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* @author Thomas Pornin <thomas.pornin@cryptolog.com> |
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* |
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* Modified for more speed by BlueDragon747 for the Blakecoin project |
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*/ |
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#include <stddef.h> |
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#include <string.h> |
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#include <limits.h> |
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#include <stdint.h> |
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#include "sph/sph_blake.h" |
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#include "algorithm/blakecoin.h" |
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/*
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* Encode a length len/4 vector of (uint32_t) into a length len vector of |
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* (unsigned char) in big-endian form. Assumes len is a multiple of 4. |
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*/ |
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static inline void |
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be32enc_vect(uint32_t *dst, const uint32_t *src, uint32_t len) |
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{ |
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uint32_t i; |
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for (i = 0; i < len; i++) |
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dst[i] = htobe32(src[i]); |
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} |
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static const uint32_t diff1targ_blake256 = 0x000000ff; |
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inline void blakecoinhash(void *state, const void *input) |
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{ |
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sph_blake256_context ctx_blake; |
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sph_blake256_init(&ctx_blake); |
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sph_blake256r8(&ctx_blake, input, 80); |
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sph_blake256r8_close(&ctx_blake, state); |
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} |
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static const uint32_t diff1targ = 0x0000ffff; |
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/* Used externally as confirmation of correct OCL code */ |
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int blakecoin_test(unsigned char *pdata, const unsigned char *ptarget, uint32_t nonce) |
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{ |
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uint32_t tmp_hash7, Htarg = le32toh(((const uint32_t *)ptarget)[7]); |
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uint32_t data[20], ohash[8]; |
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be32enc_vect(data, (const uint32_t *)pdata, 19); |
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data[19] = htobe32(nonce); |
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blakecoinhash(ohash, data); |
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tmp_hash7 = be32toh(ohash[7]); |
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applog(LOG_DEBUG, "htarget %08lx diff1 %08lx hash %08lx", |
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(long unsigned int)Htarg, |
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(long unsigned int)diff1targ, |
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(long unsigned int)tmp_hash7); |
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if (tmp_hash7 > diff1targ) |
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return -1; |
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if (tmp_hash7 > Htarg) |
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return 0; |
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return 1; |
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} |
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void blakecoin_regenhash(struct work *work) |
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{ |
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uint32_t data[20]; |
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uint32_t *nonce = (uint32_t *)(work->data + 76); |
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uint32_t *ohash = (uint32_t *)(work->hash); |
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be32enc_vect(data, (const uint32_t *)work->data, 19); |
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data[19] = htobe32(*nonce); |
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blakecoinhash(ohash, data); |
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} |
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bool scanhash_blakecoin(struct thr_info *thr, const unsigned char __maybe_unused *pmidstate, |
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unsigned char *pdata, unsigned char __maybe_unused *phash1, |
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unsigned char __maybe_unused *phash, const unsigned char *ptarget, |
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uint32_t max_nonce, uint32_t *last_nonce, uint32_t n) |
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{ |
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uint32_t *nonce = (uint32_t *)(pdata + 76); |
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uint32_t data[20]; |
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uint32_t tmp_hash7; |
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uint32_t Htarg = le32toh(((const uint32_t *)ptarget)[7]); |
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bool ret = false; |
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be32enc_vect(data, (const uint32_t *)pdata, 19); |
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while(1) { |
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uint32_t ostate[8]; |
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*nonce = ++n; |
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data[19] = (n); |
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blakecoinhash(ostate, data); |
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tmp_hash7 = (ostate[7]); |
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applog(LOG_INFO, "data7 %08lx", |
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(long unsigned int)data[7]); |
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if (unlikely(tmp_hash7 <= Htarg)) { |
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((uint32_t *)pdata)[19] = htobe32(n); |
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*last_nonce = n; |
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ret = true; |
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break; |
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} |
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if (unlikely((n >= max_nonce) || thr->work_restart)) { |
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*last_nonce = n; |
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break; |
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} |
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} |
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return ret; |
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} |
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@ -0,0 +1,9 @@ |
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#ifndef BLAKECOIN_H |
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#define BLAKECOIN_H |
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#include "miner.h" |
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extern int blakecoin_test(unsigned char *pdata, const unsigned char *ptarget, uint32_t nonce); |
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extern void blakecoin_regenhash(struct work *work); |
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#endif /* BLAKECOIN_H */ |
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