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#include <cuda.h>
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#include "cuda_runtime.h"
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#include "device_launch_parameters.h"
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#include <stdio.h>
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#include <memory.h>
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// Folgende Definitionen sp<EFBFBD>ter durch header ersetzen
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typedef unsigned int uint32_t;
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// globaler Speicher f<EFBFBD>r alle HeftyHashes aller Threads
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extern uint32_t *d_heftyHashes[8];
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extern uint32_t *d_nonceVector[8];
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// globaler Speicher f<EFBFBD>r unsere Ergebnisse
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uint32_t *d_hash2output[8];
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/* Hash-Tabellen */
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__constant__ uint32_t sha256_gpu_constantTable[64];
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// muss expandiert werden
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__constant__ uint32_t sha256_gpu_blockHeader[16]; // 2x512 Bit Message
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__constant__ uint32_t sha256_gpu_register[8];
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uint32_t sha256_cpu_hashTable[] = { 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 };
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uint32_t sha256_cpu_constantTable[] = {
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0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
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0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
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0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
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0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
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0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
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0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
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0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
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0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
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};
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#define S(x, n) (((x) >> (n)) | ((x) << (32 - (n))))
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#define R(x, n) ((x) >> (n))
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#define Ch(x, y, z) ((x & (y ^ z)) ^ z)
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#define Maj(x, y, z) ((x & (y | z)) | (y & z))
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#define S0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
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#define S1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
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#define s0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
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#define s1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
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#define SWAB32(x) ( ((x & 0x000000FF) << 24) | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8) | ((x & 0xFF000000) >> 24) )
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// Die Hash-Funktion
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__global__ void sha256_gpu_hash(int threads, uint32_t startNounce, void *outputHash, uint32_t *heftyHashes, uint32_t *nonceVector)
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{
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int thread = (blockDim.x * blockIdx.x + threadIdx.x);
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if (thread < threads)
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{
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// bestimme den aktuellen Z<EFBFBD>hler
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uint32_t nounce = startNounce + thread;
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nonceVector[thread] = nounce;
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// jeder thread in diesem Block bekommt sein eigenes W Array im Shared memory
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uint32_t W1[16];
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uint32_t W2[16];
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// Initialisiere die register a bis h mit der Hash-Tabelle
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uint32_t regs[8];
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uint32_t hash[8];
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// pre
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#pragma unroll 8
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for (int k=0; k < 8; k++)
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{
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regs[k] = sha256_gpu_register[k];
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hash[k] = regs[k];
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}
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// 2. Runde
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//memcpy(W, &sha256_gpu_blockHeader[0], sizeof(uint32_t) * 16); // TODO: aufsplitten in zwei Teilbl<EFBFBD>cke
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//memcpy(&W[5], &heftyHashes[8 * (blockDim.x * blockIdx.x + threadIdx.x)], sizeof(uint32_t) * 8); // den richtigen Hefty1 Hash holen
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#pragma unroll 16
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for(int k=0;k<16;k++)
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W1[k] = sha256_gpu_blockHeader[k];
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uint32_t offset = 8 * (blockDim.x * blockIdx.x + threadIdx.x);
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#pragma unroll 8
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for(int k=0;k<8;k++)
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W1[5+k] = heftyHashes[offset + k];
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#pragma unroll 8
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for (int i=5; i <5+8; ++i) W1[i] = SWAB32(W1[i]); // die Hefty1 Hashes brauchen eine Drehung ;)
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W1[3] = SWAB32(nounce);
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// Progress W1
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#pragma unroll 16
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for(int j=0;j<16;j++)
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{
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uint32_t T1, T2;
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T1 = regs[7] + S1(regs[4]) + Ch(regs[4], regs[5], regs[6]) + sha256_gpu_constantTable[j] + W1[j];
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T2 = S0(regs[0]) + Maj(regs[0], regs[1], regs[2]);
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#pragma unroll 7
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for (int k=6; k >= 0; k--) regs[k+1] = regs[k];
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regs[0] = T1 + T2;
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regs[4] += T1;
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}
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// Progress W2...W3
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#pragma unroll 3
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for(int k=0;k<3;k++)
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{
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#pragma unroll 2
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for(int j=0;j<2;j++)
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W2[j] = s1(W1[14+j]) + W1[9+j] + s0(W1[1+j]) + W1[j];
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#pragma unroll 5
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for(int j=2;j<7;j++)
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W2[j] = s1(W2[j-2]) + W1[9+j] + s0(W1[1+j]) + W1[j];
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#pragma unroll 8
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for(int j=7;j<15;j++)
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W2[j] = s1(W2[j-2]) + W2[j-7] + s0(W1[1+j]) + W1[j];
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W2[15] = s1(W2[13]) + W2[8] + s0(W2[0]) + W1[15];
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// Rundenfunktion
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#pragma unroll 16
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for(int j=0;j<16;j++)
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{
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uint32_t T1, T2;
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T1 = regs[7] + S1(regs[4]) + Ch(regs[4], regs[5], regs[6]) + sha256_gpu_constantTable[j + 16 * (k+1)] + W2[j];
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T2 = S0(regs[0]) + Maj(regs[0], regs[1], regs[2]);
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#pragma unroll 7
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for (int l=6; l >= 0; l--) regs[l+1] = regs[l];
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regs[0] = T1 + T2;
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regs[4] += T1;
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}
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#pragma unroll 16
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for(int j=0;j<16;j++)
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W1[j] = W2[j];
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}
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/*
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for(int j=16;j<64;j++)
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W[j] = s1(W[j-2]) + W[j-7] + s0(W[j-15]) + W[j-16];
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#pragma unroll 64
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for(int j=0;j<64;j++)
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{
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uint32_t T1, T2;
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T1 = regs[7] + S1(regs[4]) + Ch(regs[4], regs[5], regs[6]) + sha256_gpu_constantTable[j] + W[j];
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T2 = S0(regs[0]) + Maj(regs[0], regs[1], regs[2]);
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#pragma unroll 7
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for (int k=6; k >= 0; k--) regs[k+1] = regs[k];
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regs[0] = T1 + T2;
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regs[4] += T1;
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}
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*/
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#pragma unroll 8
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for(int k=0;k<8;k++)
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hash[k] += regs[k];
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#pragma unroll 8
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for(int k=0;k<8;k++)
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((uint32_t*)outputHash)[8*thread+k] = SWAB32(hash[k]);
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}
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}
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// Setup-Funktionen
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__host__ void sha256_cpu_init(int thr_id, int threads)
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{
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// Kopiere die Hash-Tabellen in den GPU-Speicher
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cudaMemcpyToSymbol( sha256_gpu_constantTable,
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sha256_cpu_constantTable,
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sizeof(uint32_t) * 64 );
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// Speicher f<EFBFBD>r alle Ergebnisse belegen
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cudaMalloc(&d_hash2output[thr_id], 8 * sizeof(uint32_t) * threads);
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}
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__host__ void sha256_cpu_setBlock(void *data)
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// data muss 84-Byte haben!
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// heftyHash hat 32-Byte
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{
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// Nachricht expandieren und setzen
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uint32_t msgBlock[32];
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memset(msgBlock, 0, sizeof(uint32_t) * 32);
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memcpy(&msgBlock[0], data, 84);
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memset(&msgBlock[21], 0, 32); // vorl<EFBFBD>ufig Nullen anstatt der Hefty1 Hashes einf<EFBFBD>llen
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msgBlock[29] |= 0x80;
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msgBlock[31] = 928; // bitlen
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for(int i=0;i<31;i++) // Byteorder drehen
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msgBlock[i] = SWAB32(msgBlock[i]);
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// die erste Runde wird auf der CPU durchgef<EFBFBD>hrt, da diese f<EFBFBD>r
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// alle Threads gleich ist. Der Hash wird dann an die Threads
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// <EFBFBD>bergeben
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uint32_t W[64];
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// Erstelle expandierten Block W
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memcpy(W, &msgBlock[0], sizeof(uint32_t) * 16);
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for(int j=16;j<64;j++)
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W[j] = s1(W[j-2]) + W[j-7] + s0(W[j-15]) + W[j-16];
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// Initialisiere die register a bis h mit der Hash-Tabelle
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uint32_t regs[8];
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uint32_t hash[8];
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// pre
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for (int k=0; k < 8; k++)
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{
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regs[k] = sha256_cpu_hashTable[k];
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hash[k] = regs[k];
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}
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// 1. Runde
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for(int j=0;j<64;j++)
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{
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uint32_t T1, T2;
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T1 = regs[7] + S1(regs[4]) + Ch(regs[4], regs[5], regs[6]) + sha256_cpu_constantTable[j] + W[j];
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T2 = S0(regs[0]) + Maj(regs[0], regs[1], regs[2]);
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//#pragma unroll 7
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for (int k=6; k >= 0; k--) regs[k+1] = regs[k];
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// sollte mal noch durch memmov ersetzt werden!
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// memcpy(®s[1], ®s[0], sizeof(uint32_t) * 7);
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regs[0] = T1 + T2;
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regs[4] += T1;
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}
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for(int k=0;k<8;k++)
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hash[k] += regs[k];
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// hash speichern
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cudaMemcpyToSymbol( sha256_gpu_register,
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hash,
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sizeof(uint32_t) * 8 );
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// Blockheader setzen (korrekte Nonce und Hefty Hash fehlen da drin noch)
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cudaMemcpyToSymbol( sha256_gpu_blockHeader,
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&msgBlock[16],
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64);
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}
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__host__ void sha256_cpu_copyHeftyHash(int thr_id, int threads, void *heftyHashes, int copy)
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{
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// Hefty1 Hashes kopieren
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if (copy) cudaMemcpy( d_heftyHashes[thr_id], heftyHashes, 8 * sizeof(uint32_t) * threads, cudaMemcpyHostToDevice );
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//else cudaThreadSynchronize();
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}
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__host__ void sha256_cpu_hash(int thr_id, int threads, int startNounce)
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{
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const int threadsperblock = 256;
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// berechne wie viele Thread Blocks wir brauchen
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dim3 grid((threads + threadsperblock-1)/threadsperblock);
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dim3 block(threadsperblock);
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// Gr<EFBFBD><EFBFBD>e des dynamischen Shared Memory Bereichs
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size_t shared_size = 0;
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// fprintf(stderr, "threads=%d, %d blocks, %d threads per block, %d bytes shared\n", threads, grid.x, block.x, shared_size);
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sha256_gpu_hash<<<grid, block, shared_size>>>(threads, startNounce, d_hash2output[thr_id], d_heftyHashes[thr_id], d_nonceVector[thr_id]);
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}
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