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sha256.c
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#ifdef _WIN32
#define _CRT_SECURE_NO_WARNINGS
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#pragma warning(disable:4996)
#endif
#include "sha256.h"
static cl_platform_id platform_id = NULL;
static cl_device_id device_id = NULL;
static cl_uint ret_num_devices;
static cl_uint ret_num_platforms;
static cl_context context;
static cl_int ret;
static char* source_str;
static size_t source_size;
static cl_program program;
static cl_kernel kernel;
static cl_command_queue command_queue;
static cl_mem pinned_saved_keys, pinned_partial_hashes, buffer_out, buffer_keys, data_info;
static cl_uint *partial_hashes;
static cl_uint *res_hashes;
static char *saved_plain;
static unsigned int datai[3];
static int have_full_hashes;
static size_t input_stride = 68;
static int result_size = 16;
static size_t local_work_size=1;
static size_t string_len;
void load_source();
void createDevice();
void createkernel();
void create_clobj();
void crypt_all();
void sha256_init() {
load_source();
createDevice();
createkernel();
create_clobj();
}
void prepare_result(char* output, uint64_t j) {
for(int i=0; i<67;i++) {
if (i==13) {
sprintf(output+i*2, "%02x", (unsigned char)(saved_plain[i] + partial_hashes[result_size*j+8] & 0xff));
} else if(i==14) {
sprintf(output+i*2, "%02x", (unsigned char)((j & 0xff0000000000) >> 40));
} else if(i==15) {
sprintf(output+i*2, "%02x", (unsigned char)((j & 0xff00000000) >> 32));
} else if(i==16) {
sprintf(output+i*2, "%02x", (unsigned char)((j & 0xff000000) >> 24));
} else if(i==17) {
sprintf(output+i*2, "%02x", (unsigned char)((j & 0xff0000) >> 16));
} else if(i==18) {
sprintf(output+i*2, "%02x", (unsigned char)((j & 0xff00) >> 8));
} else if(i==19) {
sprintf(output+i*2, "%02x", (unsigned char)((j & 0xff)));
} else {
sprintf(output+i*2, "%02x", (unsigned char)(saved_plain[i]));
}
}
sprintf(output+67*2, ":");
for(int i=0; i<8; i++)
{
sprintf(output+67*2+1+i*8, "%08x", partial_hashes[result_size*j+i]);
}
}
void sha256_crypt(char* input, int string_len, int j_offset, int LZ, int DN, char* output)
{
int i;
datai[0] = SHA256_PLAINTEXT_LENGTH;
datai[1] = 1;
datai[2] = string_len;
char r1 = rand() % 256;
char r2 = rand() % 256;
char r3 = rand() % 256;
char r4 = rand() % 256;
char r5 = rand() % 256;
char r6 = rand() % 256;
char r7 = rand() % 256;
char r8 = rand() % 256;
char r9 = rand() % 256;
memcpy(saved_plain, input, string_len+1);
memset(saved_plain+4,0,16);
// prepare NONCE
saved_plain[4] = r1; // random nonce, randomized for each call to sha256_crypt
saved_plain[5] = r2; // |
saved_plain[6] = r3; // |
saved_plain[7] = r4; // |
saved_plain[8] = r5; // |
saved_plain[9] = r6; // |
saved_plain[10] = r7; // |
saved_plain[11] = r8; // |
saved_plain[12] = r9; // |
saved_plain[13] = 0; // inner-most loop counter will be incremented on GPU in each thread
saved_plain[14] = 0; // outer loop will be taken from GPU global work index
saved_plain[15] = 0; // |
saved_plain[16] = 0; // |
saved_plain[17] = 0; // |
saved_plain[18] = 0; // |
saved_plain[19] = 0; // |
crypt_all();
if (LZ == 9) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] < ((DN & 0xffff)<<12)) {
prepare_result(output, j);
}
}
} else if (LZ == 10) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] < ((DN & 0xffff)<<8)) {
prepare_result(output, j);
}
}
} else if (LZ == 11) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] < ((DN & 0xffff)<<4)) {
prepare_result(output, j);
}
}
} else if (LZ == 12) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] < ((DN & 0xffff))) {
prepare_result(output, j);
}
}
} else if (LZ == 13) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] < ((DN & 0xfff0)>>4) && partial_hashes[result_size*j+2] < ((DN & 0x000f)<<28)) {
prepare_result(output, j);
}
}
} else if (LZ == 14) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] < ((DN & 0xff00)>>8) && partial_hashes[result_size*j+2] < ((DN & 0x00ff)<<24)) {
prepare_result(output, j);
}
}
} else if (LZ == 15) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] < ((DN & 0xf000)>>12) && partial_hashes[result_size*j+2] < ((DN & 0x0fff)<<20)) {
prepare_result(output, j);
}
}
} else if (LZ == 16) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] == 0 && partial_hashes[result_size*j+2] < ((DN & 0xffff)<<16)) {
prepare_result(output, j);
}
}
} else if (LZ == 17) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] == 0 && partial_hashes[result_size*j+2] < ((DN & 0xffff)<<12)) {
prepare_result(output, j);
}
}
} else if (LZ == 18) {
for (int j=0;j<npar;j++) {
if (partial_hashes[result_size*j] == 0 && partial_hashes[result_size*j+1] == 0 && partial_hashes[result_size*j+2] < ((DN & 0xffff)<<8)) {
prepare_result(output, j);
}
}
}
// ... TODO
if (j_offset > 0) {
prepare_result(output, 0);
printf("%s\n", output);
prepare_result(output, 1);
printf("%s\n", output);
prepare_result(output, npar-2);
printf("%s\n", output);
prepare_result(output, npar-1);
printf("%s\n", output);
}
return;
}
void crypt_all() {
ret = clEnqueueWriteBuffer(command_queue, data_info, CL_TRUE, 0, sizeof(unsigned int) * 3, datai, 0, NULL, NULL);
ret = clEnqueueWriteBuffer(command_queue, buffer_keys, CL_TRUE, 0, input_stride, saved_plain, 0, NULL, NULL);
size_t globalws[1] = {npar};
size_t localws[1] = {256}; // <---- you might want to tweak this here
ret = clEnqueueNDRangeKernel(command_queue, kernel, 1, NULL, globalws, localws, 0, NULL, NULL);
ret = clFinish(command_queue);
ret = clEnqueueReadBuffer(command_queue, buffer_out, CL_TRUE, 0, sizeof(cl_uint) * result_size * npar, partial_hashes, 0, NULL, NULL);
have_full_hashes = 0;
}
void load_source() {
FILE *fp;
fp = fopen("sha256_opencl.cl", "r");
if (!fp) {
fprintf(stderr, "Could not load kernel, please place the sha256_opencl.cl in the same directory.\n");
exit(1);
}
source_str = (char*)malloc(MAX_SOURCE_SIZE);
source_size = fread( source_str, 1, MAX_SOURCE_SIZE, fp);
fclose(fp);
}
void create_clobj(){
pinned_saved_keys = clCreateBuffer(context, CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR, input_stride, NULL, &ret);
saved_plain = (char*)clEnqueueMapBuffer(command_queue, pinned_saved_keys, CL_TRUE, CL_MAP_WRITE | CL_MAP_READ, 0, input_stride, 0, NULL, NULL, &ret);
memset(saved_plain, 0, input_stride);
res_hashes = (cl_uint *)malloc(sizeof(cl_uint) * result_size * npar);
memset(res_hashes, 0, sizeof(cl_uint) * result_size * npar);
pinned_partial_hashes = clCreateBuffer(context, CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR, sizeof(cl_uint) * result_size * npar, NULL, &ret);
partial_hashes = (cl_uint *) clEnqueueMapBuffer(command_queue, pinned_partial_hashes, CL_TRUE, CL_MAP_READ, 0, sizeof(cl_uint) * result_size * npar, 0, NULL, NULL, &ret);
memset(partial_hashes, 0, sizeof(cl_uint) * result_size * npar);
buffer_keys = clCreateBuffer(context, CL_MEM_READ_ONLY, input_stride, NULL, &ret);
buffer_out = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(cl_uint) * result_size * npar, NULL, &ret);
data_info = clCreateBuffer(context, CL_MEM_READ_ONLY, sizeof(unsigned int) * 3, NULL, &ret);
clSetKernelArg(kernel, 0, sizeof(data_info), (void *) &data_info);
clSetKernelArg(kernel, 1, sizeof(buffer_keys), (void *) &buffer_keys);
clSetKernelArg(kernel, 2, sizeof(buffer_out), (void *) &buffer_out);
}
void createDevice() {
ret = clGetPlatformIDs(1, &platform_id, &ret_num_platforms);
ret = clGetDeviceIDs( platform_id, CL_DEVICE_TYPE_ALL, 1, &device_id, &ret_num_devices);
context = clCreateContext( NULL, 1, &device_id, NULL, NULL, &ret);
}
void createkernel() {
printf("Loading kernel code..\n");
program = clCreateProgramWithSource(context, 1, (const char **)&source_str, (const size_t *)&source_size, &ret);
const char options[] = "-cl-mad-enable";
printf("Building kernel code..\n");
ret = clBuildProgram(program, 1, &device_id, options, NULL, NULL);
if (ret != CL_SUCCESS) {
printf("ERROR: build failed, make sure OpenCL is installed and the code is correct.\n");
size_t len = 0;
cl_int ret = CL_SUCCESS;
ret = clGetProgramBuildInfo(program, device_id, CL_PROGRAM_BUILD_LOG, 0, NULL, &len);
char *buffer = calloc(len, sizeof(char));
ret = clGetProgramBuildInfo(program, device_id, CL_PROGRAM_BUILD_LOG, len, buffer, NULL);
// CL compiler log
printf("BUILD LOG:%s\n", buffer);
}
// TODO: if compilation fails, abort.
printf("Creating kernel...\n");
kernel = clCreateKernel(program, "sha256_crypt_kernel", &ret);
printf("Creating queue...\n");
command_queue = clCreateCommandQueue(context, device_id, 0, &ret);
}