arno/hashcat
1
0
Fork 0
mirror of https://github.com/hashcat/hashcat.git synced 2025-07-08 23:58:24 +00:00
Code Issues Releases Wiki Activity
ed10e6a913
hashcat/src/modules/module_29432.c
Jens Steube ed10e6a913 Autotune and Benchmark refactoring 
This change affects three key areas, each improving autotuning:

- Autotune refactoring itself

The main autotune algorithm had become too complex to maintain and has
now been rewritten from scratch. The engine is now closer to the old
v6.0.0 version, using a much more straightforward approach.

Additionally, the backend is now informed when the autotune engine runs
its operations and runs an extra invisible kernel invocation. This
significantly improves runtime accuracy because the same caching
mechanisms which kick in normal cracking sessions now also apply during
autotuning. This leads to more consistent and reliable automatic
workload tuning.

- Benchmarking and '--speed-only' accuracy bugs fixed

Benchmark runtimes had become too short, especially since the default
benchmark mask changed from '?b?b?b?b?b?b?b' to '?a?a?a?a?a?a?a?a'. For
very fast hashes like NTLM, benchmarks often stopped immediately when
base words needed to be regenerated, producing highly inaccurate
results.

This issue also misled users tuning '-n' values, as manually
oversubscribing kernels could mask the problem, creating the impression
that increasing '-n' had a larger impact on performance than it truly
does. While '-n' still has an effect, it’s not as significant. With this
fix, users achieve the same speed without needing to tune '-n' manually.

The bug was fixed by enforcing a minimum benchmark runtime of 4 seconds,
regardless of kernel runtime or kernel type. This ensures more stable
and realistic benchmark results, but typically increasing the benchmark
duration by up to 4 seconds.

- Kernel-Threads set to 32 and plugin configuration cleanup

Some plugin configurations existed solely to work around the old
benchmarking bug and can now be removed. For example,
'OPTS_TYPE_MAXIMUM_THREADS' is no longer required and has been removed
from all plugins, although the parameter itself remains to avoid
breaking custom plugins.

Because increasing threads beyond 32 no longer offers meaningful
performance gains, the default is now capped at 32 (unless overridden
with '-T'). This simplifies GPU memory management. Currently, work-item
counts are indirectly limited by buffer sizes (e.g., 'pws_buf[]'), which
must not exceed 4 GiB (a hard-coded limit). This buffer size depends on
the product of 'kernel-accel', 'kernel-threads', and the device’s
compute units. By reducing the default threads from 1024 to 32, there is
now more space available for base words.
2025-06-22 20:17:52 +02:00

401 lines
18 KiB
C
Raw Blame History

/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
#include "common.h"
#include "types.h"
#include "modules.h"
#include "bitops.h"
#include "convert.h"
#include "shared.h"
#include "memory.h"
#include "cpu_crc32.h"
#include "keyboard_layout.h"
static const u32 ATTACK_EXEC = ATTACK_EXEC_OUTSIDE_KERNEL;
static const u32 DGST_POS0 = 0;
static const u32 DGST_POS1 = 1;
static const u32 DGST_POS2 = 2;
static const u32 DGST_POS3 = 3;
static const u32 DGST_SIZE = DGST_SIZE_4_32;
static const u32 HASH_CATEGORY = HASH_CATEGORY_FDE;
static const char *HASH_NAME = "VeraCrypt Whirlpool + XTS 1024 bit";
static const u64 KERN_TYPE = 13732; // old kernel used here
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
| OPTI_TYPE_SLOW_HASH_SIMD_LOOP;
static const u64 OPTS_TYPE = OPTS_TYPE_STOCK_MODULE
| OPTS_TYPE_PT_GENERATE_LE
| OPTS_TYPE_LOOP_EXTENDED
| OPTS_TYPE_MP_MULTI_DISABLE
| OPTS_TYPE_COPY_TMPS;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "$veracrypt$1b721942019ebe8cedddbed7744a0702c0e053281a467e0ed69bf875c7406407d72eb8f2aea21270e41898c0a2c14382f86e04c15e7bc019d1d9dd813eabee0a$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";
u32 module_attack_exec (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ATTACK_EXEC; }
u32 module_dgst_pos0 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS0; }
u32 module_dgst_pos1 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS1; }
u32 module_dgst_pos2 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS2; }
u32 module_dgst_pos3 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS3; }
u32 module_dgst_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_SIZE; }
u32 module_hash_category (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_CATEGORY; }
const char *module_hash_name (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_NAME; }
u64 module_kern_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return KERN_TYPE; }
u32 module_opti_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTI_TYPE; }
u64 module_opts_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTS_TYPE; }
u32 module_salt_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return SALT_TYPE; }
const char *module_st_hash (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_HASH; }
const char *module_st_pass (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_PASS; }
#define VC_SALT_LEN 64
#define VC_DATA_LEN 448
typedef struct vc_tmp
{
u32 ipad[16];
u32 opad[16];
u32 dgst[64];
u32 out[64];
u32 pim_key[64];
int pim; // marker for cracked
int pim_check; // marker for _extended kernel
} vc_tmp_t;
typedef struct vc
{
u32 data_buf[112];
u32 keyfile_buf16[16];
u32 keyfile_buf32[32];
u32 keyfile_enabled;
u32 signature;
keyboard_layout_mapping_t keyboard_layout_mapping_buf[256];
int keyboard_layout_mapping_cnt;
int pim_multi; // 2048 for boot (not SHA-512 or Whirlpool), 1000 for others
int pim_start;
int pim_stop;
} vc_t;
static const int ROUNDS_VERACRYPT_500000 = 500000;
static const float MIN_SUFFICIENT_ENTROPY_FILE = 7.0f;
static const char *SIGNATURE_VERACRYPT = "$veracrypt$";
bool module_unstable_warning (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, MAYBE_UNUSED const hc_device_param_t *device_param)
{
if ((device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE) && (device_param->opencl_device_type & CL_DEVICE_TYPE_GPU))
{
if (device_param->is_metal == true)
{
if (strncmp (device_param->device_name, "Intel", 5) == 0)
{
// Intel Iris Graphics, Metal Version 244.303: failed to create 'm13732_init' pipeline, timeout reached
return true;
}
}
}
return false;
}
int module_build_plain_postprocess (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const hashes_t *hashes, MAYBE_UNUSED const void *tmps, const u32 *src_buf, MAYBE_UNUSED const size_t src_sz, MAYBE_UNUSED const int src_len, u32 *dst_buf, MAYBE_UNUSED const size_t dst_sz)
{
const vc_tmp_t *vc_tmp = (const vc_tmp_t *) tmps;
if (vc_tmp->pim == 0)
{
return snprintf ((char *) dst_buf, dst_sz, "%s", (const char *) src_buf);
}
else
{
return snprintf ((char *) dst_buf, dst_sz, "%s (PIM=%d)", (const char *) src_buf, vc_tmp->pim - 15);
}
}
u64 module_esalt_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u64 esalt_size = (const u64) sizeof (vc_t);
return esalt_size;
}
u64 module_tmp_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u64 tmp_size = (const u64) sizeof (vc_tmp_t);
return tmp_size;
}
u32 module_kernel_loops_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u32 kernel_loops_max = 1000; // lowest PIM multiplier
return kernel_loops_max;
}
u32 module_pw_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
// this overrides the reductions of PW_MAX in case optimized kernel is selected
// IOW, even in optimized kernel mode it support length 64
const u32 pw_max = 128;
return pw_max;
}
int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, const char *line_buf, MAYBE_UNUSED const int line_len)
{
u32 *digest = (u32 *) digest_buf;
vc_t *vc = (vc_t *) esalt_buf;
hc_token_t token;
memset (&token, 0, sizeof (hc_token_t));
token.token_cnt = 3;
token.signatures_cnt = 1;
token.signatures_buf[0] = SIGNATURE_VERACRYPT;
token.len[0] = 11;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
token.sep[1] = '$';
token.len[1] = 128;
token.attr[1] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
token.sep[2] = '$';
token.len[2] = 896;
token.attr[2] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
// salt
const u8 *salt_pos = token.buf[1];
for (u32 i = 0, j = 0; i < VC_SALT_LEN / 4; i += 1, j += 8)
{
salt->salt_buf[i] = hex_to_u32 (salt_pos + j);
}
salt->salt_len = VC_SALT_LEN;
// iter
salt->salt_iter = ROUNDS_VERACRYPT_500000 - 1;
// data
const u8 *data_pos = token.buf[2];
for (u32 i = 0, j = 0; i < VC_DATA_LEN / 4; i += 1, j += 8)
{
vc->data_buf[i] = hex_to_u32 (data_pos + j);
}
// entropy
const float entropy = get_entropy ((const u8 *) vc->data_buf, VC_DATA_LEN);
if (entropy < MIN_SUFFICIENT_ENTROPY_FILE) return (PARSER_INSUFFICIENT_ENTROPY);
// pim
vc->pim_multi = 1000;
vc->pim_start = 0;
vc->pim_stop = 0;
// signature
vc->signature = 0x41524556; // "VERA"
// fake digest
memcpy (digest, vc->data_buf, 112);
return (PARSER_OK);
}
int module_hash_decode_postprocess (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
vc_t *vc = (vc_t *) esalt_buf;
// keyfiles
if (user_options->veracrypt_keyfiles)
{
char *keyfiles = hcstrdup (user_options->veracrypt_keyfiles);
char *saveptr = NULL;
char *keyfile = strtok_r (keyfiles, ",", &saveptr);
while (keyfile)
{
if (hc_path_read (keyfile))
{
cpu_crc32 (keyfile, (u8 *) vc->keyfile_buf16, 64);
cpu_crc32 (keyfile, (u8 *) vc->keyfile_buf32, 128);
}
keyfile = strtok_r ((char *) NULL, ",", &saveptr);
}
hcfree (keyfiles);
vc->keyfile_enabled = 1;
}
// keyboard layout mapping
if (user_options->keyboard_layout_mapping)
{
if (hc_path_read (user_options->keyboard_layout_mapping))
{
initialize_keyboard_layout_mapping (user_options->keyboard_layout_mapping, vc->keyboard_layout_mapping_buf, &vc->keyboard_layout_mapping_cnt);
}
}
// veracrypt PIM
if ((user_options->veracrypt_pim_start_chgd == true) && (user_options->veracrypt_pim_stop_chgd == true))
{
vc->pim_start = 15 + user_options->veracrypt_pim_start;
vc->pim_stop = 15 + user_options->veracrypt_pim_stop;
salt->salt_iter = vc->pim_stop * 1000 - 1;
}
return (PARSER_OK);
}
int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const void *digest_buf, MAYBE_UNUSED const salt_t *salt, MAYBE_UNUSED const void *esalt_buf, MAYBE_UNUSED const void *hook_salt_buf, MAYBE_UNUSED const hashinfo_t *hash_info, char *line_buf, MAYBE_UNUSED const int line_size)
{
const vc_t *vc = (const vc_t *) esalt_buf;
// salt
#define SALT_HEX_LEN VC_SALT_LEN * 2 + 1
char salt_buf[SALT_HEX_LEN] = { 0 };
for (u32 i = 0, j = 0; i < VC_SALT_LEN / 4; i += 1, j += 8)
{
snprintf (salt_buf + j, SALT_HEX_LEN - j, "%08x", byte_swap_32 (salt->salt_buf[i]));
}
// data
#define DATA_HEX_LEN VC_DATA_LEN * 2 + 1
char data_buf[DATA_HEX_LEN] = { 0 };
for (u32 i = 0, j = 0; i < VC_DATA_LEN / 4; i += 1, j += 8)
{
snprintf (data_buf + j, DATA_HEX_LEN - j, "%08x", byte_swap_32 (vc->data_buf[i]));
}
// output
int line_len = snprintf (line_buf, line_size, "%s%s$%s",
SIGNATURE_VERACRYPT,
salt_buf,
data_buf);
return line_len;
}
void module_init (module_ctx_t *module_ctx)
{
module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT;
module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT;
module_ctx->module_attack_exec = module_attack_exec;
module_ctx->module_benchmark_esalt = MODULE_DEFAULT;
module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT;
module_ctx->module_benchmark_mask = MODULE_DEFAULT;
module_ctx->module_benchmark_charset = MODULE_DEFAULT;
module_ctx->module_benchmark_salt = MODULE_DEFAULT;
module_ctx->module_bridge_name = MODULE_DEFAULT;
module_ctx->module_bridge_type = MODULE_DEFAULT;
module_ctx->module_build_plain_postprocess = module_build_plain_postprocess;
module_ctx->module_deep_comp_kernel = MODULE_DEFAULT;
module_ctx->module_deprecated_notice = MODULE_DEFAULT;
module_ctx->module_dgst_pos0 = module_dgst_pos0;
module_ctx->module_dgst_pos1 = module_dgst_pos1;
module_ctx->module_dgst_pos2 = module_dgst_pos2;
module_ctx->module_dgst_pos3 = module_dgst_pos3;
module_ctx->module_dgst_size = module_dgst_size;
module_ctx->module_dictstat_disable = MODULE_DEFAULT;
module_ctx->module_esalt_size = module_esalt_size;
module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
module_ctx->module_extra_tuningdb_block = MODULE_DEFAULT;
module_ctx->module_forced_outfile_format = MODULE_DEFAULT;
module_ctx->module_hash_binary_count = MODULE_DEFAULT;
module_ctx->module_hash_binary_parse = MODULE_DEFAULT;
module_ctx->module_hash_binary_save = MODULE_DEFAULT;
module_ctx->module_hash_decode_postprocess = module_hash_decode_postprocess;
module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
module_ctx->module_hash_decode_zero_hash = MODULE_DEFAULT;
module_ctx->module_hash_decode = module_hash_decode;
module_ctx->module_hash_encode_status = MODULE_DEFAULT;
module_ctx->module_hash_encode_potfile = MODULE_DEFAULT;
module_ctx->module_hash_encode = module_hash_encode;
module_ctx->module_hash_init_selftest = MODULE_DEFAULT;
module_ctx->module_hash_mode = MODULE_DEFAULT;
module_ctx->module_hash_category = module_hash_category;
module_ctx->module_hash_name = module_hash_name;
module_ctx->module_hashes_count_min = MODULE_DEFAULT;
module_ctx->module_hashes_count_max = MODULE_DEFAULT;
module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_size = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_init = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_term = MODULE_DEFAULT;
module_ctx->module_hook12 = MODULE_DEFAULT;
module_ctx->module_hook23 = MODULE_DEFAULT;
module_ctx->module_hook_salt_size = MODULE_DEFAULT;
module_ctx->module_hook_size = MODULE_DEFAULT;
module_ctx->module_jit_build_options = MODULE_DEFAULT;
module_ctx->module_jit_cache_disable = MODULE_DEFAULT;
module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
module_ctx->module_kernel_loops_max = module_kernel_loops_max;
module_ctx->module_kernel_loops_min = MODULE_DEFAULT;
module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
module_ctx->module_kern_type = module_kern_type;
module_ctx->module_kern_type_dynamic = MODULE_DEFAULT;
module_ctx->module_opti_type = module_opti_type;
module_ctx->module_opts_type = module_opts_type;
module_ctx->module_outfile_check_disable = MODULE_DEFAULT;
module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
module_ctx->module_potfile_disable = MODULE_DEFAULT;
module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
module_ctx->module_pwdump_column = MODULE_DEFAULT;
module_ctx->module_pw_max = module_pw_max;
module_ctx->module_pw_min = MODULE_DEFAULT;
module_ctx->module_salt_max = MODULE_DEFAULT;
module_ctx->module_salt_min = MODULE_DEFAULT;
module_ctx->module_salt_type = module_salt_type;
module_ctx->module_separator = MODULE_DEFAULT;
module_ctx->module_st_hash = module_st_hash;
module_ctx->module_st_pass = module_st_pass;
module_ctx->module_tmp_size = module_tmp_size;
module_ctx->module_unstable_warning = module_unstable_warning;
module_ctx->module_warmup_disable = MODULE_DEFAULT;
}
Reference in New Issue View Git Blame Copy Permalink