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hashcat
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The weak-hash-check feature didn't work for algorithms that made use of some automatic optimizer flags

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We'll enforce a weak-hash-check on an _a0 kernel for them
pull/117/head
Jens Steube 9 years ago
parent 3cdee2e06e
commit 1d628ca6e0
3 changed files with 199 additions and 10 deletions
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1
include/shared.h
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@ -1565,6 +1565,7 @@ extern hc_thread_mutex_t mux_display;
#define KERN_RUN_2 2000
#define KERN_RUN_23 2500
#define KERN_RUN_3 3000
#define KERN_RUN_WEAK 9000
/*
* functions

5
include/types.h
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@ -900,12 +900,14 @@ struct __hc_device_param
cl_kernel kernel_amp;
cl_kernel kernel_tb;
cl_kernel kernel_tm;
cl_kernel kernel_weak;
cl_context context;
cl_program program;
cl_program program_mp;
cl_program program_amp;
cl_program program_weak;
cl_command_queue command_queue;
@ -963,7 +965,6 @@ struct __hc_device_param
uint64_t kernel_params_mp_l_buf64[PARAMCNT];
uint32_t kernel_params_amp_buf32[PARAMCNT];
};
typedef struct __hc_device_param hc_device_param_t;
@ -1011,7 +1012,7 @@ typedef struct
uint attack_exec;
uint kernel_rules_cnt;
kernel_rule_t *kernel_rules_buf;
kernel_rule_t *kernel_rules_buf;
uint combs_mode;
uint combs_cnt;

203
src/oclHashcat.c
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@ -2343,6 +2343,7 @@ static void run_kernel (const uint kern_run, hc_device_param_t *device_param, co
case KERN_RUN_2: kernel = device_param->kernel2; break;
case KERN_RUN_23: kernel = device_param->kernel23; break;
case KERN_RUN_3: kernel = device_param->kernel3; break;
case KERN_RUN_WEAK: kernel = device_param->kernel_weak; break;
}
hc_clSetKernelArg (kernel, 21, sizeof (cl_uint), device_param->kernel_params[21]);
@ -2359,15 +2360,15 @@ static void run_kernel (const uint kern_run, hc_device_param_t *device_param, co
if ((data.opts_type & OPTS_TYPE_PT_BITSLICE) && (data.attack_mode == ATTACK_MODE_BF))
{
const size_t global_work_size[3] = { num_elements, 32, 1 };
const size_t local_work_size[3] = { kernel_threads / 32, 32, 1 };
const size_t global_work_size[3] = { num_elements, 32, 1 };
const size_t local_work_size[3] = { kernel_threads / 32, 32, 1 };
hc_clEnqueueNDRangeKernel (device_param->command_queue, kernel, 2, NULL, global_work_size, local_work_size, 0, NULL, NULL);
}
else
{
const size_t global_work_size[3] = { num_elements, 1, 1 };
const size_t local_work_size[3] = { kernel_threads, 1, 1 };
const size_t global_work_size[3] = { num_elements, 1, 1 };
const size_t local_work_size[3] = { kernel_threads, 1, 1 };
hc_clEnqueueNDRangeKernel (device_param->command_queue, kernel, 1, NULL, global_work_size, local_work_size, 0, NULL, NULL);
}
@ -4538,7 +4539,7 @@ static void weak_hash_check (hc_device_param_t *device_param, const uint salt_po
if (data.attack_exec == ATTACK_EXEC_INSIDE_KERNEL)
{
run_kernel (KERN_RUN_1, device_param, 1);
run_kernel (KERN_RUN_WEAK, device_param, 1);
}
else
{
@ -13280,6 +13281,148 @@ int main (int argc, char **argv)
sprintf (build_opts, "-I%s/ -DVENDOR_ID=%d -DCUDA_ARCH=%d", shared_dir, vendor_id, (device_param->sm_major * 100) + device_param->sm_minor);
/**
* a0 kernel, required for some fast hashes to make weak_hash_check work
*/
const uint add_flag = OPTS_TYPE_PT_ADD01
| OPTS_TYPE_PT_ADD02
| OPTS_TYPE_PT_ADD80
| OPTS_TYPE_PT_ADDBITS14
| OPTS_TYPE_PT_ADDBITS15
| OPTS_TYPE_ST_ADD01
| OPTS_TYPE_ST_ADD02
| OPTS_TYPE_ST_ADD80
| OPTS_TYPE_ST_ADDBITS14
| OPTS_TYPE_ST_ADDBITS15;
if ((weak_hash_threshold) && (attack_exec == ATTACK_EXEC_INSIDE_KERNEL) && (opts_type & add_flag))
{
/**
* kernel source filename
*/
char source_file[256];
memset (source_file, 0, sizeof (source_file));
generate_source_kernel_filename (attack_exec, ATTACK_KERN_STRAIGHT, kern_type, shared_dir, source_file);
struct stat sst;
if (stat (source_file, &sst) == -1)
{
log_error ("ERROR: %s: %s", source_file, strerror (errno));
return -1;
}
/**
* kernel cached filename
*/
char cached_file[256];
memset (cached_file, 0, sizeof (cached_file));
generate_cached_kernel_filename (attack_exec, ATTACK_KERN_STRAIGHT, kern_type, profile_dir, device_name_chksum, vendor_id, cached_file);
int cached = 1;
struct stat cst;
if (stat (cached_file, &cst) == -1)
{
cached = 0;
}
/**
* kernel compile or load
*/
size_t *kernel_lengths = (size_t *) mymalloc (sizeof (size_t));
const unsigned char **kernel_sources = (const unsigned char **) mymalloc (sizeof (unsigned char *));
if (force_jit_compilation == 0)
{
if (cached == 0)
{
if (quiet == 0) log_info ("Device #%u: Kernel %s not found in cache! Building may take a while...", device_id + 1, cached_file);
load_kernel (source_file, 1, kernel_lengths, kernel_sources);
device_param->program_weak = hc_clCreateProgramWithSource (device_param->context, 1, (const char **) kernel_sources, NULL);
hc_clBuildProgram (device_param->program_weak, 1, &device_param->device, build_opts, NULL, NULL);
size_t binary_size;
clGetProgramInfo (device_param->program_weak, CL_PROGRAM_BINARY_SIZES, sizeof (size_t), &binary_size, NULL);
unsigned char *binary = (unsigned char *) mymalloc (binary_size);
clGetProgramInfo (device_param->program_weak, CL_PROGRAM_BINARIES, sizeof (binary), &binary, NULL);
writeProgramBin (cached_file, binary, binary_size);
local_free (binary);
}
else
{
if (quiet == 0) log_info ("Device #%u: Kernel %s (%ld bytes)", device_id + 1, cached_file, cst.st_size);
load_kernel (cached_file, 1, kernel_lengths, kernel_sources);
device_param->program_weak = hc_clCreateProgramWithBinary (device_param->context, 1, &device_param->device, kernel_lengths, (const unsigned char **) kernel_sources, NULL);
hc_clBuildProgram (device_param->program_weak, 1, &device_param->device, build_opts, NULL, NULL);
}
}
else
{
if (quiet == 0) log_info ("Device #%u: Kernel %s (%ld bytes)", device_id + 1, source_file, sst.st_size);
load_kernel (source_file, 1, kernel_lengths, kernel_sources);
device_param->program_weak = hc_clCreateProgramWithSource (device_param->context, 1, (const char **) kernel_sources, NULL);
if (force_jit_compilation == 1500)
{
sprintf (build_opts, "%s -DDESCRYPT_SALT=%d", build_opts, data.salts_buf[0].salt_buf[0]);
}
else if (force_jit_compilation == 8900)
{
sprintf (build_opts, "%s -DSCRYPT_N=%d -DSCRYPT_R=%d -DSCRYPT_P=%d -DSCRYPT_TMTO=%d", build_opts, data.salts_buf[0].scrypt_N, data.salts_buf[0].scrypt_r, data.salts_buf[0].scrypt_p, 1 << data.salts_buf[0].scrypt_tmto);
}
hc_clBuildProgram (device_param->program_weak, 1, &device_param->device, build_opts, NULL, NULL);
}
local_free (kernel_lengths);
local_free (kernel_sources[0]);
local_free (kernel_sources);
// this is mostly for debug
size_t ret_val_size = 0;
clGetProgramBuildInfo (device_param->program_weak, device_param->device, CL_PROGRAM_BUILD_LOG, 0, NULL, &ret_val_size);
if (ret_val_size > 2)
{
char *build_log = (char *) mymalloc (ret_val_size + 1);
memset (build_log, 0, ret_val_size + 1);
clGetProgramBuildInfo (device_param->program_weak, device_param->device, CL_PROGRAM_BUILD_LOG, ret_val_size, build_log, NULL);
puts (build_log);
myfree (build_log);
}
}
/**
* main kernel
*/
@ -13904,19 +14047,53 @@ int main (int argc, char **argv)
}
else
{
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_m%02d", kern_type, 4);
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_m%02d", kern_type, 4);
device_param->kernel1 = hc_clCreateKernel (device_param->program, kernel_name);
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_m%02d", kern_type, 8);
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_m%02d", kern_type, 8);
device_param->kernel2 = hc_clCreateKernel (device_param->program, kernel_name);
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_m%02d", kern_type, 16);
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_m%02d", kern_type, 16);
device_param->kernel3 = hc_clCreateKernel (device_param->program, kernel_name);
}
if (weak_hash_threshold)
{
if (opts_type & add_flag)
{
if (opti_type & OPTI_TYPE_SINGLE_HASH)
{
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_s%02d", kern_type, 4);
device_param->kernel_weak = hc_clCreateKernel (device_param->program_weak, kernel_name);
}
else
{
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_m%02d", kern_type, 4);
device_param->kernel_weak = hc_clCreateKernel (device_param->program_weak, kernel_name);
}
}
else
{
if (opti_type & OPTI_TYPE_SINGLE_HASH)
{
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_s%02d", kern_type, 4);
device_param->kernel_weak = hc_clCreateKernel (device_param->program, kernel_name);
}
else
{
snprintf (kernel_name, sizeof (kernel_name) - 1, "m%05d_m%02d", kern_type, 4);
device_param->kernel_weak = hc_clCreateKernel (device_param->program, kernel_name);
}
}
}
if (data.attack_mode == ATTACK_MODE_BF)
{
if (opts_type & OPTS_TYPE_PT_BITSLICE)
@ -13968,6 +14145,11 @@ int main (int argc, char **argv)
if (opts_type & OPTS_TYPE_HOOK12) hc_clSetKernelArg (device_param->kernel12, i, sizeof (cl_mem), device_param->kernel_params[i]);
if (opts_type & OPTS_TYPE_HOOK23) hc_clSetKernelArg (device_param->kernel23, i, sizeof (cl_mem), device_param->kernel_params[i]);
if (weak_hash_threshold)
{
hc_clSetKernelArg (device_param->kernel_weak, i, sizeof (cl_mem), device_param->kernel_params[i]);
}
}
for (uint i = 21; i <= 31; i++)
@ -13978,6 +14160,11 @@ int main (int argc, char **argv)
if (opts_type & OPTS_TYPE_HOOK12) hc_clSetKernelArg (device_param->kernel12, i, sizeof (cl_uint), device_param->kernel_params[i]);
if (opts_type & OPTS_TYPE_HOOK23) hc_clSetKernelArg (device_param->kernel23, i, sizeof (cl_uint), device_param->kernel_params[i]);
if (weak_hash_threshold)
{
hc_clSetKernelArg (device_param->kernel_weak, i, sizeof (cl_uint), device_param->kernel_params[i]);
}
}
if (attack_mode == ATTACK_MODE_BF)

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