mirror of
https://github.com/hashcat/hashcat.git
synced 2025-08-01 03:18:17 +00:00
696fa3b2ad
Reduced the fixed memory reservation size from 1GiB to 64MiB as a result. Added a warning when the user sets a thread count on the command line higher than recommended by the runtime (based on available registers and shared memory). Added host-side logic to detect true funnel shift support and disable kernels using it if not supported on the device. Updated more plugins to limit register count to 128 on NVIDIA GPUs.
342 lines
16 KiB
C
342 lines
16 KiB
C
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#include "common.h"
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#include "types.h"
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#include "modules.h"
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#include "bitops.h"
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#include "convert.h"
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#include "shared.h"
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#include "emu_inc_cipher_des.h"
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static const u32 ATTACK_EXEC = ATTACK_EXEC_INSIDE_KERNEL;
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static const u32 DGST_POS0 = 0;
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static const u32 DGST_POS1 = 1;
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static const u32 DGST_POS2 = 2;
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static const u32 DGST_POS3 = 3;
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static const u32 DGST_SIZE = DGST_SIZE_4_4; // originally DGST_SIZE_4_2
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static const u32 HASH_CATEGORY = HASH_CATEGORY_OS;
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static const char *HASH_NAME = "descrypt, DES (Unix), Traditional DES";
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static const u64 KERN_TYPE = 1500;
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static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
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| OPTI_TYPE_REGISTER_LIMIT;
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static const u64 OPTS_TYPE = OPTS_TYPE_STOCK_MODULE
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| OPTS_TYPE_PT_GENERATE_LE
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| OPTS_TYPE_TM_KERNEL
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| OPTS_TYPE_SELF_TEST_DISABLE;
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static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
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static const char *ST_PASS = "hashcat";
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static const char *ST_HASH = "24leDr0hHfb3A";
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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; }
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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)
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{
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if (device_param->opencl_device_type & CL_DEVICE_TYPE_CPU)
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{
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if (device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE)
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{
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// works on Apple Intel: Intel(R) Core(TM) i7-4578U CPU @ 3.00GHz
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return false;
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}
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if (strncmp (device_param->device_name, "AMD EPYC", 8) == 0)
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{
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// works on Linux: AMD EPYC 7642 48-Core Processor, OpenCL 2.1 (Build 0)
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return false;
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}
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if (device_param->opencl_platform_vendor_id != VENDOR_ID_INTEL_SDK)
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{
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// works on Linux/POCL
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return false;
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}
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// skip by default for now
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return true;
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}
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return false;
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}
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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)
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{
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const u8 *ptr_src = (const u8 *) src_buf;
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u8 *ptr_dst = (u8 *) dst_buf;
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for (int i = 0; i < src_len; i++)
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{
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char v = ptr_src[i];
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if (v & 0x80)
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{
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char v2 = v & 0x7f;
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if (v2 >= 0x20)
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{
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ptr_dst[i] = v2;
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}
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else
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{
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ptr_dst[i] = v;
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}
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}
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else
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{
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ptr_dst[i] = v;
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}
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}
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return src_len;
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}
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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)
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{
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u32 kernel_loops_max = KERNEL_LOOPS_MAX;
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if (user_options->slow_candidates == false)
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{
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if (user_options->attack_mode == ATTACK_MODE_BF)
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{
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kernel_loops_max = 1024;
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}
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}
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return kernel_loops_max;
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}
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u32 module_kernel_loops_min (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
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{
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u32 kernel_loops_min = KERNEL_LOOPS_MIN;
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if (user_options->slow_candidates == false)
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{
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if (user_options->attack_mode == ATTACK_MODE_BF)
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{
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kernel_loops_min = 1024;
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}
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}
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return kernel_loops_min;
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}
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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)
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{
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const u32 pw_max = 8; // Underlaying DES max
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return pw_max;
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}
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bool module_jit_cache_disable (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 hashes_t *hashes, MAYBE_UNUSED const hc_device_param_t *device_param)
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{
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if ((user_options->attack_mode == ATTACK_MODE_BF) && (hashes->salts_cnt == 1) && (user_options->slow_candidates == false))
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{
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return true;
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}
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return false;
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}
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char *module_jit_build_options (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 hashes_t *hashes, MAYBE_UNUSED const hc_device_param_t *device_param)
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{
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char *jit_build_options = NULL;
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if ((user_options->attack_mode == ATTACK_MODE_BF) && (hashes->salts_cnt == 1) && (user_options->slow_candidates == false))
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{
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hc_asprintf (&jit_build_options, "-D DESCRYPT_SALT=%u -D _unroll", hashes->salts_buf[0].salt_buf[0] & 0xfff);
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}
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return jit_build_options;
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}
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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)
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{
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u32 *digest = (u32 *) digest_buf;
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hc_token_t token;
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memset (&token, 0, sizeof (hc_token_t));
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token.token_cnt = 2;
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token.len[0] = 2;
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token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_BASE64B;
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token.len[1] = 11;
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token.attr[1] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_BASE64B;
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const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
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if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
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const u8 *salt_pos = token.buf[0];
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const u8 *hash_pos = token.buf[1];
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const int hash_len = token.len[1];
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const u8 c10 = itoa64_to_int (hash_pos[10]);
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if (c10 & 3) return (PARSER_HASH_VALUE);
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// for ascii_to_ebcdic_digest
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salt->salt_sign[0] = salt_pos[0];
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salt->salt_sign[1] = salt_pos[1];
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salt->salt_buf[0] = itoa64_to_int (salt_pos[0])
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| itoa64_to_int (salt_pos[1]) << 6;
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// we need to add 2 additional bytes (the salt sign) such that the salt sorting algorithm
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// doesn't eliminate salts that are identical but have different salt signs
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salt->salt_buf[0] |= salt_pos[0] << 16
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| salt_pos[1] << 24;
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salt->salt_len = 4; // actually it is only 2 (but we need to add the original salt_sign to it)
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u32 tmp[16] = { 0 };
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base64_decode (itoa64_to_int, hash_pos, hash_len, (u8 *) tmp);
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digest[0] = tmp[0];
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digest[1] = tmp[1];
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digest[2] = 0;
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digest[3] = 0;
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DES_IP (digest[0], digest[1]);
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return (PARSER_OK);
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}
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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)
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{
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const u32 *digest = (const u32 *) digest_buf;
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// we can not change anything in the original buffer, otherwise destroying sorting
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// therefore create some local buffer
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u32 tmp[4];
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tmp[0] = digest[0];
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tmp[1] = digest[1];
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tmp[2] = 0;
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tmp[3] = 0;
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DES_FP (tmp[1], tmp[0]);
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u8 ptr_plain[20] = { 0 };
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base64_encode (int_to_itoa64, (const u8 *) tmp, 8, ptr_plain);
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line_buf[0] = salt->salt_sign[0] & 0xff;
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line_buf[1] = salt->salt_sign[1] & 0xff;
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//original method, but changed because of this ticket: https://hashcat.net/trac/ticket/269
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//line_buf[0] = int_to_itoa64 ((salt->salt_buf[0] >> 0) & 0x3f);
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//line_buf[1] = int_to_itoa64 ((salt->salt_buf[0] >> 6) & 0x3f);
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snprintf (line_buf + 2, line_size - 2, "%s", ptr_plain);
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const int out_len = 2 + 11;
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return out_len;
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}
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void module_init (module_ctx_t *module_ctx)
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{
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module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT;
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module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT;
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module_ctx->module_attack_exec = module_attack_exec;
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module_ctx->module_benchmark_esalt = MODULE_DEFAULT;
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module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT;
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module_ctx->module_benchmark_mask = MODULE_DEFAULT;
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module_ctx->module_benchmark_charset = MODULE_DEFAULT;
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module_ctx->module_benchmark_salt = MODULE_DEFAULT;
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module_ctx->module_bridge_name = MODULE_DEFAULT;
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module_ctx->module_bridge_type = MODULE_DEFAULT;
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module_ctx->module_build_plain_postprocess = module_build_plain_postprocess;
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module_ctx->module_deep_comp_kernel = MODULE_DEFAULT;
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module_ctx->module_deprecated_notice = MODULE_DEFAULT;
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module_ctx->module_dgst_pos0 = module_dgst_pos0;
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module_ctx->module_dgst_pos1 = module_dgst_pos1;
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module_ctx->module_dgst_pos2 = module_dgst_pos2;
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module_ctx->module_dgst_pos3 = module_dgst_pos3;
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module_ctx->module_dgst_size = module_dgst_size;
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module_ctx->module_dictstat_disable = MODULE_DEFAULT;
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module_ctx->module_esalt_size = MODULE_DEFAULT;
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module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
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module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
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module_ctx->module_extra_tuningdb_block = MODULE_DEFAULT;
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module_ctx->module_forced_outfile_format = MODULE_DEFAULT;
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module_ctx->module_hash_binary_count = MODULE_DEFAULT;
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module_ctx->module_hash_binary_parse = MODULE_DEFAULT;
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module_ctx->module_hash_binary_save = MODULE_DEFAULT;
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module_ctx->module_hash_decode_postprocess = MODULE_DEFAULT;
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module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
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module_ctx->module_hash_decode_zero_hash = MODULE_DEFAULT;
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module_ctx->module_hash_decode = module_hash_decode;
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module_ctx->module_hash_encode_status = MODULE_DEFAULT;
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module_ctx->module_hash_encode_potfile = MODULE_DEFAULT;
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module_ctx->module_hash_encode = module_hash_encode;
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module_ctx->module_hash_init_selftest = MODULE_DEFAULT;
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module_ctx->module_hash_mode = MODULE_DEFAULT;
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module_ctx->module_hash_category = module_hash_category;
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module_ctx->module_hash_name = module_hash_name;
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module_ctx->module_hashes_count_min = MODULE_DEFAULT;
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module_ctx->module_hashes_count_max = MODULE_DEFAULT;
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module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
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module_ctx->module_hook_extra_param_size = MODULE_DEFAULT;
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module_ctx->module_hook_extra_param_init = MODULE_DEFAULT;
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module_ctx->module_hook_extra_param_term = MODULE_DEFAULT;
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module_ctx->module_hook12 = MODULE_DEFAULT;
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module_ctx->module_hook23 = MODULE_DEFAULT;
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module_ctx->module_hook_salt_size = MODULE_DEFAULT;
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module_ctx->module_hook_size = MODULE_DEFAULT;
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module_ctx->module_jit_build_options = module_jit_build_options;
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module_ctx->module_jit_cache_disable = module_jit_cache_disable;
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module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
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module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
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module_ctx->module_kernel_loops_max = module_kernel_loops_max;
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module_ctx->module_kernel_loops_min = module_kernel_loops_min;
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module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
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module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
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module_ctx->module_kern_type = module_kern_type;
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module_ctx->module_kern_type_dynamic = MODULE_DEFAULT;
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module_ctx->module_opti_type = module_opti_type;
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module_ctx->module_opts_type = module_opts_type;
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module_ctx->module_outfile_check_disable = MODULE_DEFAULT;
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module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
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module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
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module_ctx->module_potfile_disable = MODULE_DEFAULT;
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module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
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module_ctx->module_pwdump_column = MODULE_DEFAULT;
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module_ctx->module_pw_max = module_pw_max;
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module_ctx->module_pw_min = MODULE_DEFAULT;
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module_ctx->module_salt_max = MODULE_DEFAULT;
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module_ctx->module_salt_min = MODULE_DEFAULT;
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module_ctx->module_salt_type = module_salt_type;
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module_ctx->module_separator = MODULE_DEFAULT;
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module_ctx->module_st_hash = module_st_hash;
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module_ctx->module_st_pass = module_st_pass;
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module_ctx->module_tmp_size = MODULE_DEFAULT;
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module_ctx->module_unstable_warning = module_unstable_warning;
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module_ctx->module_warmup_disable = MODULE_DEFAULT;
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}
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