mirror of
https://github.com/hashcat/hashcat.git
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415 lines
16 KiB
C
415 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_hash_md5.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;
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static const u32 HASH_CATEGORY = HASH_CATEGORY_RAW_CIPHER_KPA;
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static const char *HASH_NAME = "RC4 72-bit DropN";
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static const u64 KERN_TYPE = 33501;
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static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
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| OPTI_TYPE_NOT_ITERATED
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| OPTI_TYPE_NOT_SALTED;
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static const u64 OPTS_TYPE = OPTS_TYPE_STOCK_MODULE
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| OPTS_TYPE_SUGGEST_KG // collisions by using pt_len != pass_len
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| OPTS_TYPE_PT_GENERATE_LE;
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static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
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static const char *ST_PASS = "hashcat12";
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static const char *ST_HASH = "$rc4$72$0$90eaa8d71c$0$48656c6c6f";
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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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typedef struct rc4
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{
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u32 dropN;
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u32 ct_len;
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u32 pt_len;
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u32 pt_off;
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u32 pt[2];
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u32 ct[16];
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} rc4_t;
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static const char *SIGNATURE_RC4 = "$rc4$";
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#define RC4_KEY_BITS 72
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#define PW_LEN (RC4_KEY_BITS / 8) // 9
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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_platform_vendor_id == VENDOR_ID_APPLE) && (device_param->opencl_device_type & CL_DEVICE_TYPE_GPU))
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{
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if (device_param->is_metal == true)
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{
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if (strncmp (device_param->device_name, "Intel", 5) == 0)
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{
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// Intel Iris Graphics, Metal Version 244.303, compiler timeout but only with -a0
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return true;
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}
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}
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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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u32 native_threads = 0;
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if (device_param->opencl_device_type & CL_DEVICE_TYPE_CPU)
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{
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native_threads = 1;
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}
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else if (device_param->opencl_device_type & CL_DEVICE_TYPE_GPU)
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{
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#if defined (__APPLE__)
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native_threads = 32;
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#else
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if (device_param->device_local_mem_size < 49152)
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{
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native_threads = MIN (device_param->kernel_preferred_wgs_multiple, 32); // We can't just set 32, because Intel GPU need 8
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}
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else
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{
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native_threads = device_param->kernel_preferred_wgs_multiple;
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}
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#endif
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}
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hc_asprintf (&jit_build_options, "-D FIXED_LOCAL_SIZE=%u -D _unroll", native_threads);
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return jit_build_options;
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}
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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)
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{
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const u64 esalt_size = (const u64) sizeof (rc4_t);
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return esalt_size;
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}
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u32 module_pw_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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const u32 pw_min = PW_LEN;
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return pw_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 = PW_LEN;
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return pw_max;
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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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rc4_t *rc4 = (rc4_t *) esalt_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 = 6;
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token.signatures_cnt = 1;
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token.signatures_buf[0] = SIGNATURE_RC4;
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token.len[0] = strlen (SIGNATURE_RC4);
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token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_SIGNATURE;
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// key bit
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token.sep[1] = '$';
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token.len_min[1] = 2;
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token.len_max[1] = 3;
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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// dropN
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token.sep[2] = '$';
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token.len_min[2] = 1;
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token.len_max[2] = 3;
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token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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// ciphertext
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token.sep[3] = '$';
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token.len_min[3] = 1 * 2;
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token.len_max[3] = 64 * 2;
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token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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// plaintext offset
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token.sep[4] = '$';
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token.len[4] = 1;
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token.attr[4] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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// plaintext
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token.sep[5] = '$';
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token.len_min[5] = 1 * 2;
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token.len_max[5] = 64 * 2;
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token.attr[5] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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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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// key bit
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const u8 *key_bit_pos = token.buf[1];
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u32 key_bit = hc_strtoul ((const char *) key_bit_pos, NULL, 10);
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if (key_bit != RC4_KEY_BITS) return (PARSER_KEY_SIZE);
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// dropN
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const u8 *dropN_pos = token.buf[2];
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rc4->dropN = hc_strtoul ((const char *) dropN_pos, NULL, 10);
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// ciphertext
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u32 salt_len = 0;
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u32 salt_buf[16];
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memset (salt_buf, 0, sizeof (salt_buf));
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u8 *salt_buf_ptr = (u8 *) salt_buf;
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const u8 *ciphertext_pos = token.buf[3];
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const u32 ciphertext_len = token.len[3];
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rc4->ct_len = ciphertext_len / 2;
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u8 *ct = (u8 *) rc4->ct;
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for (u32 i = 0, j = 0; i < rc4->ct_len; i += 1, j += 2)
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{
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ct[i] = hex_to_u8 (ciphertext_pos + j);
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salt_buf_ptr[i] = ct[i];
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salt_len++;
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}
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// fake salt (part 1)
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md5_ctx_t md5_ctx;
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md5_init (&md5_ctx);
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md5_update (&md5_ctx, salt_buf, salt_len);
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// plaintext offset
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const u8 *pt_offset_pos = token.buf[4];
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rc4->pt_off = hc_strtoul ((const char *) pt_offset_pos, NULL, 10);
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if (rc4->pt_off > rc4->ct_len) return PARSER_PT_OFFSET;
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// plaintext
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const u8 *plaintext_pos = token.buf[5];
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const u32 plaintext_len = token.len[5];
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rc4->pt_len = plaintext_len / 2;
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if (rc4->pt_len > rc4->ct_len) return PARSER_PT_LENGTH;
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if ((rc4->pt_off + rc4->pt_len) > rc4->ct_len) return PARSER_PT_OFFSET;
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u8 *pt = (u8 *) rc4->pt;
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u8 *dgst = (u8 *) digest;
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salt_len = 0;
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memset (salt_buf, 0, sizeof (salt_buf));
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for (u32 i = 0, j = 0; i < rc4->pt_len; i += 1, j += 2)
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{
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pt[i] = hex_to_u8 (plaintext_pos + j);
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dgst[i] = pt[i];
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salt_buf[i] = pt[i];
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salt_len++;
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}
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// fake salt (part 2)
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md5_update (&md5_ctx, salt_buf, salt_len);
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md5_final (&md5_ctx);
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salt->salt_buf[0] = md5_ctx.h[0];
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salt->salt_buf[1] = md5_ctx.h[1];
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salt->salt_buf[2] = md5_ctx.h[2];
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salt->salt_buf[3] = md5_ctx.h[3];
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salt->salt_len = 16;
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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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const rc4_t *rc4 = (const rc4_t *) esalt_buf;
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snprintf (line_buf, line_size, "%s%u$%u$", SIGNATURE_RC4, RC4_KEY_BITS, rc4->dropN);
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u8 *out_buf = (u8 *) line_buf;
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int out_len = strlen (line_buf);
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u8 *ct = (u8 *) rc4->ct;
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for (u32 i = 0; i < rc4->ct_len; i++)
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{
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u8_to_hex (ct[i], out_buf + out_len); out_len += 2;
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}
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out_buf[out_len++] = '$';
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char tmp_buf[10] = { 0 };
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snprintf ((char *) tmp_buf, sizeof (tmp_buf), "%u", rc4->pt_off);
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snprintf ((char *) out_buf + out_len, sizeof (tmp_buf), "%u", rc4->pt_off);
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out_len += strlen (tmp_buf);
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out_buf[out_len++] = '$';
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u8 *dgst = (u8 *) digest;
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for (u32 i = 0; i < rc4->pt_len; i++)
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{
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u8_to_hex (dgst[i], out_buf + out_len); out_len += 2;
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}
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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_DEFAULT;
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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_esalt_size;
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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_DEFAULT;
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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_DEFAULT;
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module_ctx->module_kernel_loops_min = MODULE_DEFAULT;
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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;
|
|
module_ctx->module_pw_min = module_pw_min;
|
|
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_DEFAULT;
|
|
module_ctx->module_unstable_warning = module_unstable_warning;
|
|
module_ctx->module_warmup_disable = MODULE_DEFAULT;
|
|
}
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