mirror of https://github.com/hashcat/hashcat.git
jsteube
5 years ago
parent
5cc04fe92a
commit
89faa8330f
@ -0,0 +1,275 @@
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/**
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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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static const u32 ATTACK_EXEC = ATTACK_EXEC_OUTSIDE_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_8_16;
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static const u32 HASH_CATEGORY = HASH_CATEGORY_OS;
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static const char *HASH_NAME = "GRUB 2";
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static const u32 HASH_TYPE = HASH_TYPE_GENERIC;
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static const u64 KERN_TYPE = 7100;
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static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
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| OPTI_TYPE_USES_BITS_64
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| OPTI_TYPE_SLOW_HASH_SIMD_LOOP;
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static const u64 OPTS_TYPE = OPTS_TYPE_STATE_BUFFER_LE
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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 = "hashcat";
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static const char *ST_HASH = "grub.pbkdf2.sha512.1024.03510507805003756325721848020561235456073188241051876082416068104377357018503082587026352628170170411053726157658716047762755750.aac26b18c2b0c44bcf56514d46aabd52eea097d9c95122722087829982e9dd957b2b641cb1e015d4df16a84d0571e96cf6d3de6361431bdeed4ddb0940f2425b";
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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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u32 module_hash_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 HASH_TYPE; }
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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 pbkdf2_sha512
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{
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u32 salt_buf[32];
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} pbkdf2_sha512_t;
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typedef struct pbkdf2_sha512_tmp
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{
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u64 ipad[8];
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u64 opad[8];
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u64 dgst[16];
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u64 out[16];
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} pbkdf2_sha512_tmp_t;
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static const char *SIGNATURE_SHA512GRUB = "grub.pbkdf2.sha512.";
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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 (pbkdf2_sha512_t);
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return esalt_size;
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}
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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)
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{
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const u64 tmp_size = (const u64) sizeof (pbkdf2_sha512_tmp_t);
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return tmp_size;
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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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// this overrides the reductions of PW_MAX in case optimized kernel is selected
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// IOW, even in optimized kernel mode it support length 256
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const u32 pw_max = PW_MAX;
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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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u64 *digest = (u64 *) digest_buf;
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pbkdf2_sha512_t *pbkdf2_sha512 = (pbkdf2_sha512_t *) esalt_buf;
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token_t token;
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token.token_cnt = 4;
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token.signatures_cnt = 1;
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token.signatures_buf[0] = SIGNATURE_SHA512GRUB;
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token.len[0] = 19;
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token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_SIGNATURE;
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token.len_min[1] = 1;
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token.len_max[1] = 6;
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token.sep[1] = '.';
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.len_min[2] = SALT_MIN;
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token.len_max[2] = SALT_MAX;
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token.sep[2] = '.';
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token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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token.len_min[3] = 128;
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token.len_max[3] = 128;
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token.attr[3] = 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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const u8 *hash_pos = token.buf[3];
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digest[0] = hex_to_u64 (hash_pos + 0);
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digest[1] = hex_to_u64 (hash_pos + 16);
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digest[2] = hex_to_u64 (hash_pos + 32);
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digest[3] = hex_to_u64 (hash_pos + 48);
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digest[4] = hex_to_u64 (hash_pos + 64);
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digest[5] = hex_to_u64 (hash_pos + 80);
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digest[6] = hex_to_u64 (hash_pos + 96);
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digest[7] = hex_to_u64 (hash_pos + 112);
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digest[0] = byte_swap_64 (digest[0]);
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digest[1] = byte_swap_64 (digest[1]);
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digest[2] = byte_swap_64 (digest[2]);
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digest[3] = byte_swap_64 (digest[3]);
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digest[4] = byte_swap_64 (digest[4]);
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digest[5] = byte_swap_64 (digest[5]);
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digest[6] = byte_swap_64 (digest[6]);
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digest[7] = byte_swap_64 (digest[7]);
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const u8 *salt_pos = token.buf[2];
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const int salt_len = token.len[2] / 2;
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u8 *salt_buf_ptr = (u8 *) pbkdf2_sha512->salt_buf;
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for (int i = 0, j = 0; i < salt_len; i += 1, j += 2)
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{
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salt_buf_ptr[i] = hex_to_u8 (salt_pos + j);
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}
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salt_buf_ptr[salt_len + 3] = 0x01;
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salt_buf_ptr[salt_len + 4] = 0x80;
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salt->salt_buf[0] = pbkdf2_sha512->salt_buf[0];
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salt->salt_buf[1] = pbkdf2_sha512->salt_buf[1];
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salt->salt_buf[2] = pbkdf2_sha512->salt_buf[2];
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salt->salt_buf[3] = pbkdf2_sha512->salt_buf[3];
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salt->salt_buf[4] = pbkdf2_sha512->salt_buf[4];
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salt->salt_buf[5] = pbkdf2_sha512->salt_buf[5];
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salt->salt_buf[6] = pbkdf2_sha512->salt_buf[6];
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salt->salt_buf[7] = pbkdf2_sha512->salt_buf[7];
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salt->salt_len = salt_len;
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const u8 *iter_pos = token.buf[1];
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salt->salt_iter = hc_strtoul ((const char *) iter_pos, NULL, 10) - 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 = digest_buf;
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const pbkdf2_sha512_t *pbkdf2_sha512 = (const pbkdf2_sha512_t *) esalt_buf;
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int line_len = 0;
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line_len += snprintf (line_buf + line_len, line_size - line_len, "%s%u.", SIGNATURE_SHA512GRUB, salt->salt_iter + 1);
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unsigned char *salt_buf_ptr = (unsigned char *) pbkdf2_sha512->salt_buf;
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for (u32 i = 0; i < salt->salt_len; i++)
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{
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line_len += snprintf (line_buf + line_len, line_size - line_len, "%02x", salt_buf_ptr[i]);
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}
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line_len += snprintf (line_buf + line_len, line_size - line_len, ".%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x",
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digest[ 1], digest[ 0],
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digest[ 3], digest[ 2],
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digest[ 5], digest[ 4],
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digest[ 7], digest[ 6],
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digest[ 9], digest[ 8],
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digest[11], digest[10],
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digest[13], digest[12],
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digest[15], digest[14]);
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return line_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_salt = 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_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_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_outfile = 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 = 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_hash_type = module_hash_type;
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module_ctx->module_hlfmt_disable = 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_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_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_tmp_size;
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module_ctx->module_unstable_warning = MODULE_DEFAULT;
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module_ctx->module_warmup_disable = MODULE_DEFAULT;
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}
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