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hashcat/src/modules/module_03200.c

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/**
* 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"
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_6;
static const u32 HASH_CATEGORY = HASH_CATEGORY_OS;
static const char *HASH_NAME = "bcrypt $2*$, Blowfish (Unix)";
static const u64 KERN_TYPE = 3200;
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE;
static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "$2a$05$MBCzKhG1KhezLh.0LRa0Kuw12nLJtpHy6DIaU.JAnqJUDYspHC.Ou";
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; }
static const char *SIGNATURE_BCRYPT1 = "$2a$";
static const char *SIGNATURE_BCRYPT2 = "$2b$";
static const char *SIGNATURE_BCRYPT3 = "$2x$";
static const char *SIGNATURE_BCRYPT4 = "$2y$";
typedef struct bcrypt_tmp
{
u32 E[18];
u32 P[18];
u32 S0[256];
u32 S1[256];
u32 S2[256];
u32 S3[256];
} bcrypt_tmp_t;
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)
{
const u32 pw_max = 72; // Underlaying Blowfish max
return pw_max;
}
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 (bcrypt_tmp_t);
return tmp_size;
}
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)
{
return true;
}
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)
{
char *jit_build_options = NULL;
// this uses some nice feedback effect.
// based on the device_local_mem_size the reqd_work_group_size in the kernel is set to some value
// which is then is read from the opencl host in the kernel_preferred_wgs_multiple1/2/3 result.
// therefore we do not need to set module_kernel_threads_min/max except for CPU, where the threads are set to fixed 1.
u32 fixed_local_size = 0;
if (device_param->opencl_device_type & CL_DEVICE_TYPE_CPU)
{
fixed_local_size = 1;
}
else
{
u32 overhead = 0;
if (device_param->opencl_device_vendor_id == VENDOR_ID_NV)
{
// note we need to use device_param->device_local_mem_size - 4 because opencl jit returns with:
// Entry function '...' uses too much shared data (0xc004 bytes, 0xc000 max)
// on my development system. no clue where the 4 bytes are spent.
// I did some research on this and it seems to be related with the datatype.
// For example, if i used u8 instead, there's only 1 byte wasted.
if (device_param->is_opencl == true)
{
overhead = 4;
}
}
if (user_options->kernel_threads_chgd == true)
{
fixed_local_size = user_options->kernel_threads;
// otherwise out-of-bound reads
if ((fixed_local_size * 4096) > (device_param->device_local_mem_size - overhead))
{
fixed_local_size = (device_param->device_local_mem_size - overhead) / 4096;
}
}
else
{
fixed_local_size = (device_param->device_local_mem_size - overhead) / 4096;
}
}
hc_asprintf (&jit_build_options, "-D FIXED_LOCAL_SIZE=%u", fixed_local_size);
return jit_build_options;
}
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;
token_t token;
token.token_cnt = 4;
token.signatures_cnt = 4;
token.signatures_buf[0] = SIGNATURE_BCRYPT1;
token.signatures_buf[1] = SIGNATURE_BCRYPT2;
token.signatures_buf[2] = SIGNATURE_BCRYPT3;
token.signatures_buf[3] = SIGNATURE_BCRYPT4;
token.len[0] = 4;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
token.len_min[1] = 2;
token.len_max[1] = 2;
token.sep[1] = '$';
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.len[2] = 22;
token.attr[2] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_BASE64B;
token.len[3] = 31;
token.attr[3] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_BASE64B;
const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
const u8 *iter_pos = token.buf[1];
const u8 *salt_pos = token.buf[2];
const u8 *hash_pos = token.buf[3];
const int salt_len = token.len[2];
const int hash_len = token.len[3];
salt->salt_len = 16;
salt->salt_iter = 1u << hc_strtoul ((const char *) iter_pos, NULL, 10);
memcpy ((char *) salt->salt_sign, line_buf, 6);
u8 *salt_buf_ptr = (u8 *) salt->salt_buf;
u8 tmp_buf[100];
memset (tmp_buf, 0, sizeof (tmp_buf));
base64_decode (bf64_to_int, (const u8 *) salt_pos, salt_len, tmp_buf);
memcpy (salt_buf_ptr, tmp_buf, 16);
salt->salt_buf[0] = byte_swap_32 (salt->salt_buf[0]);
salt->salt_buf[1] = byte_swap_32 (salt->salt_buf[1]);
salt->salt_buf[2] = byte_swap_32 (salt->salt_buf[2]);
salt->salt_buf[3] = byte_swap_32 (salt->salt_buf[3]);
memset (tmp_buf, 0, sizeof (tmp_buf));
base64_decode (bf64_to_int, (const u8 *) hash_pos, hash_len, tmp_buf);
memcpy (digest, tmp_buf, 24);
digest[0] = byte_swap_32 (digest[0]);
digest[1] = byte_swap_32 (digest[1]);
digest[2] = byte_swap_32 (digest[2]);
digest[3] = byte_swap_32 (digest[3]);
digest[4] = byte_swap_32 (digest[4]);
digest[5] = byte_swap_32 (digest[5]);
digest[5] &= ~0xffu; // its just 23 not 24 !
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 u32 *digest = (const u32 *) digest_buf;
u32 tmp_digest[6];
tmp_digest[0] = byte_swap_32 (digest[0]);
tmp_digest[1] = byte_swap_32 (digest[1]);
tmp_digest[2] = byte_swap_32 (digest[2]);
tmp_digest[3] = byte_swap_32 (digest[3]);
tmp_digest[4] = byte_swap_32 (digest[4]);
tmp_digest[5] = byte_swap_32 (digest[5]);
u32 tmp_salt[4];
tmp_salt[0] = byte_swap_32 (salt->salt_buf[0]);
tmp_salt[1] = byte_swap_32 (salt->salt_buf[1]);
tmp_salt[2] = byte_swap_32 (salt->salt_buf[2]);
tmp_salt[3] = byte_swap_32 (salt->salt_buf[3]);
char tmp_buf[64];
base64_encode (int_to_bf64, (const u8 *) tmp_salt, 16, (u8 *) tmp_buf + 0);
base64_encode (int_to_bf64, (const u8 *) tmp_digest, 23, (u8 *) tmp_buf + 22);
tmp_buf[22 + 31] = 0; // base64_encode wants to pad
return snprintf (line_buf, line_size, "%s$%s", (char *) salt->salt_sign, tmp_buf);
}
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_salt = MODULE_DEFAULT;
module_ctx->module_build_plain_postprocess = MODULE_DEFAULT;
module_ctx->module_deep_comp_kernel = 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_DEFAULT;
module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
module_ctx->module_extra_tmp_size = 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_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_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_jit_build_options;
module_ctx->module_jit_cache_disable = module_jit_cache_disable;
module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
module_ctx->module_kernel_loops_max = MODULE_DEFAULT;
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_DEFAULT;
module_ctx->module_warmup_disable = MODULE_DEFAULT;
}
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