diff --git a/include/interface_migrate.h b/include/interface_migrate.h index 26c9ae440..56d16ae70 100644 --- a/include/interface_migrate.h +++ b/include/interface_migrate.h @@ -30,12 +30,6 @@ typedef struct pbkdf2_sha256_tmp } pbkdf2_sha256_tmp_t; -typedef struct cram_md5 -{ - u32 user[16]; - -} cram_md5_t; - typedef enum kern_type { KERN_TYPE_MD5_SLTPW = 20, diff --git a/src/interface_migrate.c b/src/interface_migrate.c index 04e1b90f5..548bb2fb0 100644 --- a/src/interface_migrate.c +++ b/src/interface_migrate.c @@ -39,7 +39,6 @@ " 11760 | HMAC-Streebog-256 (key = $salt), big-endian | Raw Hash, Authenticated", " 11850 | HMAC-Streebog-512 (key = $pass), big-endian | Raw Hash, Authenticated", " 11860 | HMAC-Streebog-512 (key = $salt), big-endian | Raw Hash, Authenticated", - " 10200 | CRAM-MD5 | Network Protocols", " 11100 | PostgreSQL CRAM (MD5) | Network Protocols", " 11200 | MySQL CRAM (SHA1) | Network Protocols", " 121 | SMF (Simple Machines Forum) > v1.1 | Forums, CMS, E-Commerce, Frameworks", @@ -125,7 +124,6 @@ static const char *ST_HASH_04900 = "75d280ca9a0c2ee18729603104ead576d9ca6285:347 static const char *ST_HASH_06000 = "012cb9b334ec1aeb71a9c8ce85586082467f7eb6"; static const char *ST_HASH_06100 = "7ca8eaaaa15eaa4c038b4c47b9313e92da827c06940e69947f85bc0fbef3eb8fd254da220ad9e208b6b28f6bb9be31dd760f1fdb26112d83f87d96b416a4d258"; static const char *ST_HASH_10100 = "583e6f51e52ba296:2:4:47356410265714355482333327356688"; -static const char *ST_HASH_10200 = "$cram_md5$MTI=$dXNlciBiOGYwNjk5MTE0YjA1Nzg4OTIyM2RmMDg0ZjgyMjQ2Zg=="; static const char *ST_HASH_11100 = "$postgres$postgres*74402844*4e7fabaaf34d780c4a5822d28ee1c83e"; static const char *ST_HASH_11200 = "$mysqlna$2576670568531371763643101056213751754328*5e4be686a3149a12847caa9898247dcc05739601"; static const char *ST_HASH_11700 = "57e9e50caec93d72e9498c211d6dc4f4d328248b48ecf46ba7abfa874f666e36"; @@ -174,7 +172,6 @@ static const char *HT_04900 = "sha1($salt.$pass.$salt)"; static const char *HT_06000 = "RIPEMD-160"; static const char *HT_06100 = "Whirlpool"; static const char *HT_10100 = "SipHash"; -static const char *HT_10200 = "CRAM-MD5"; static const char *HT_11100 = "PostgreSQL CRAM (MD5)"; static const char *HT_11200 = "MySQL CRAM (SHA1)"; static const char *HT_11700 = "GOST R 34.11-2012 (Streebog) 256-bit, big-endian"; @@ -208,7 +205,6 @@ static const char *HT_02711 = "vBulletin >= v3.8.5"; static const char *HT_04521 = "Redmine"; static const char *HT_04522 = "PunBB"; -static const char *SIGNATURE_CRAM_MD5 = "$cram_md5$"; static const char *SIGNATURE_DJANGOSHA1 = "sha1$"; static const char *SIGNATURE_EPISERVER = "$episerver$"; static const char *SIGNATURE_MEDIAWIKI_B = "$B$"; @@ -2503,93 +2499,6 @@ int siphash_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UN return (PARSER_OK); } -int crammd5_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig) -{ - u32 *digest = (u32 *) hash_buf->digest; - - salt_t *salt = hash_buf->salt; - - cram_md5_t *cram_md5 = (cram_md5_t *) hash_buf->esalt; - - token_t token; - - token.token_cnt = 3; - - token.signatures_cnt = 1; - token.signatures_buf[0] = SIGNATURE_CRAM_MD5; - - token.len[0] = 10; - token.attr[0] = TOKEN_ATTR_FIXED_LENGTH - | TOKEN_ATTR_VERIFY_SIGNATURE; - - token.sep[1] = '$'; - token.len_min[1] = 0; - token.len_max[1] = 76; - token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH - | TOKEN_ATTR_VERIFY_BASE64A; - - token.sep[2] = '$'; - token.len_min[2] = 44; - token.len_max[2] = 132; - token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH - | TOKEN_ATTR_VERIFY_BASE64A; - - const int rc_tokenizer = input_tokenizer (input_buf, input_len, &token); - - if (rc_tokenizer != PARSER_OK) return (rc_tokenizer); - - // salt - - const u8 *salt_pos = token.buf[1]; - const int salt_len = token.len[1]; - - u8 tmp_buf[100]; - int tmp_len; - - memset (tmp_buf, 0, sizeof (tmp_buf)); - - tmp_len = base64_decode (base64_to_int, (const u8 *) salt_pos, salt_len, tmp_buf); - - if (tmp_len > 55) return (PARSER_SALT_LENGTH); - - tmp_buf[tmp_len] = 0x80; - - memcpy (salt->salt_buf, tmp_buf, tmp_len + 1); - - salt->salt_len = tmp_len; - - // hash - - const u8 *hash_pos = token.buf[2]; - const int hash_len = token.len[2]; - - memset (tmp_buf, 0, sizeof (tmp_buf)); - - tmp_len = base64_decode (base64_to_int, (const u8 *) hash_pos, hash_len, tmp_buf); - - if (tmp_len < 32 + 1) return (PARSER_HASH_LENGTH); - - u32 user_len = tmp_len - 32; - - const u8 *tmp_hash = tmp_buf + user_len; - - user_len--; // skip the trailing space - - if (is_valid_hex_string (tmp_hash, 32) == false) return (PARSER_HASH_ENCODING); - - digest[0] = hex_to_u32 (tmp_hash + 0); - digest[1] = hex_to_u32 (tmp_hash + 8); - digest[2] = hex_to_u32 (tmp_hash + 16); - digest[3] = hex_to_u32 (tmp_hash + 24); - - // store username for host only (output hash if cracked) - - memset (cram_md5->user, 0, sizeof (cram_md5->user)); - memcpy (cram_md5->user, tmp_buf, user_len); - - return (PARSER_OK); -} - int redmine_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig) { u32 *digest = (u32 *) hash_buf->digest; @@ -4013,33 +3922,6 @@ int ascii_digest (hashcat_ctx_t *hashcat_ctx, char *out_buf, const int out_size, byte_swap_32 (salt.salt_buf[2]), byte_swap_32 (salt.salt_buf[3])); } - else if (hash_mode == 10200) - { - cram_md5_t *cram_md5s = (cram_md5_t *) esalts_buf; - - cram_md5_t *cram_md5 = &cram_md5s[digest_cur]; - - // challenge - - char challenge[100] = { 0 }; - - base64_encode (int_to_base64, (const u8 *) salt.salt_buf, salt.salt_len, (u8 *) challenge); - - // response - - int tmp_len = snprintf (tmp_buf, sizeof (tmp_buf), "%s %08x%08x%08x%08x", - (char *) cram_md5->user, - digest_buf[0], - digest_buf[1], - digest_buf[2], - digest_buf[3]); - - char response[100] = { 0 }; - - base64_encode (int_to_base64, (const u8 *) tmp_buf, tmp_len, (u8 *) response); - - snprintf (out_buf, out_size, "%s%s$%s", SIGNATURE_CRAM_MD5, challenge, response); - } else if (hash_mode == 11100) { u32 salt_challenge = salt.salt_buf[0]; @@ -5509,25 +5391,6 @@ int hashconfig_init (hashcat_ctx_t *hashcat_ctx) hashconfig->st_pass = ST_PASS_HASHCAT_PLAIN; break; - case 10200: hashconfig->hash_type = HASH_TYPE_MD5; - hashconfig->salt_type = SALT_TYPE_EMBEDDED; - hashconfig->attack_exec = ATTACK_EXEC_INSIDE_KERNEL; - hashconfig->opts_type = OPTS_TYPE_PT_GENERATE_LE - | OPTS_TYPE_ST_ADD80 - | OPTS_TYPE_ST_ADDBITS14; - hashconfig->kern_type = KERN_TYPE_HMACMD5_PW; - hashconfig->dgst_size = DGST_SIZE_4_4; - hashconfig->parse_func = crammd5_parse_hash; - hashconfig->opti_type = OPTI_TYPE_ZERO_BYTE - | OPTI_TYPE_NOT_ITERATED; - hashconfig->dgst_pos0 = 0; - hashconfig->dgst_pos1 = 3; - hashconfig->dgst_pos2 = 2; - hashconfig->dgst_pos3 = 1; - hashconfig->st_hash = ST_HASH_10200; - hashconfig->st_pass = ST_PASS_HASHCAT_PLAIN; - break; - case 11100: hashconfig->hash_type = HASH_TYPE_MD5; hashconfig->salt_type = SALT_TYPE_EMBEDDED; hashconfig->attack_exec = ATTACK_EXEC_INSIDE_KERNEL; @@ -5691,17 +5554,4 @@ int hashconfig_init (hashcat_ctx_t *hashcat_ctx) } - // esalt_size - - switch (hashconfig->hash_mode) - { - case 10200: hashconfig->esalt_size = sizeof (cram_md5_t); break; - } - - // tmp_size - - switch (hashconfig->hash_mode) - { - case 10200: hashconfig->tmp_size = sizeof (cram_md5_t); break; - }; } diff --git a/src/modules/module_10200.c b/src/modules/module_10200.c new file mode 100644 index 000000000..43b677bb3 --- /dev/null +++ b/src/modules/module_10200.c @@ -0,0 +1,248 @@ +/** + * 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_INSIDE_KERNEL; +static const u32 DGST_POS0 = 0; +static const u32 DGST_POS1 = 3; +static const u32 DGST_POS2 = 2; +static const u32 DGST_POS3 = 1; +static const u32 DGST_SIZE = DGST_SIZE_4_4; +static const u32 HASH_CATEGORY = HASH_CATEGORY_NETWORK_PROTOCOL; +static const char *HASH_NAME = "CRAM-MD5"; +static const u32 HASH_TYPE = HASH_TYPE_GENERIC; +static const u64 KERN_TYPE = 50; +static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE + | OPTI_TYPE_NOT_ITERATED; +static const u64 OPTS_TYPE = OPTS_TYPE_STATE_BUFFER_LE + | OPTS_TYPE_PT_GENERATE_LE + | OPTS_TYPE_ST_ADD80 + | OPTS_TYPE_ST_ADDBITS14; +static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED; +static const char *ST_PASS = "hashcat"; +static const char *ST_HASH = "$cram_md5$MTI=$dXNlciBiOGYwNjk5MTE0YjA1Nzg4OTIyM2RmMDg0ZjgyMjQ2Zg=="; + +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; } +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; } +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; } + +typedef struct cram_md5 +{ + u32 user[16]; + +} cram_md5_t; + +static const char *SIGNATURE_CRAM_MD5 = "$cram_md5$"; + +u64 module_esalt_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) +{ + const u64 esalt_size = (const u64) sizeof (cram_md5_t); + + return esalt_size; +} + +int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, const char *line_buf, MAYBE_UNUSED const int line_len) +{ + u32 *digest = (u32 *) digest_buf; + + cram_md5_t *cram_md5 = (cram_md5_t *) esalt_buf; + + token_t token; + + token.token_cnt = 3; + + token.signatures_cnt = 1; + token.signatures_buf[0] = SIGNATURE_CRAM_MD5; + + token.len[0] = 10; + token.attr[0] = TOKEN_ATTR_FIXED_LENGTH + | TOKEN_ATTR_VERIFY_SIGNATURE; + + token.sep[1] = '$'; + token.len_min[1] = 0; + token.len_max[1] = 76; + token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH + | TOKEN_ATTR_VERIFY_BASE64A; + + token.sep[2] = '$'; + token.len_min[2] = 44; + token.len_max[2] = 132; + token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH + | TOKEN_ATTR_VERIFY_BASE64A; + + const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token); + + if (rc_tokenizer != PARSER_OK) return (rc_tokenizer); + + // salt + + const u8 *salt_pos = token.buf[1]; + const int salt_len = token.len[1]; + + u8 tmp_buf[100]; + int tmp_len; + + memset (tmp_buf, 0, sizeof (tmp_buf)); + + tmp_len = base64_decode (base64_to_int, (const u8 *) salt_pos, salt_len, tmp_buf); + + if (tmp_len > 55) return (PARSER_SALT_LENGTH); + + tmp_buf[tmp_len] = 0x80; + + memcpy (salt->salt_buf, tmp_buf, tmp_len + 1); + + salt->salt_len = tmp_len; + + // hash + + const u8 *hash_pos = token.buf[2]; + const int hash_len = token.len[2]; + + memset (tmp_buf, 0, sizeof (tmp_buf)); + + tmp_len = base64_decode (base64_to_int, (const u8 *) hash_pos, hash_len, tmp_buf); + + if (tmp_len < 32 + 1) return (PARSER_HASH_LENGTH); + + u32 user_len = tmp_len - 32; + + const u8 *tmp_hash = tmp_buf + user_len; + + user_len--; // skip the trailing space + + if (is_valid_hex_string (tmp_hash, 32) == false) return (PARSER_HASH_ENCODING); + + digest[0] = hex_to_u32 (tmp_hash + 0); + digest[1] = hex_to_u32 (tmp_hash + 8); + digest[2] = hex_to_u32 (tmp_hash + 16); + digest[3] = hex_to_u32 (tmp_hash + 24); + + // store username for host only (output hash if cracked) + + memset (cram_md5->user, 0, sizeof (cram_md5->user)); + memcpy (cram_md5->user, tmp_buf, user_len); + + 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; + + const cram_md5_t *cram_md5 = (const cram_md5_t *) esalt_buf; + + // challenge + + char challenge[100] = { 0 }; + + base64_encode (int_to_base64, (const u8 *) salt->salt_buf, salt->salt_len, (u8 *) challenge); + + // response + + char tmp_buf[100]; + + const int tmp_len = snprintf (tmp_buf, sizeof (tmp_buf), "%s %08x%08x%08x%08x", + (char *) cram_md5->user, + byte_swap_32 (digest[0]), + byte_swap_32 (digest[1]), + byte_swap_32 (digest[2]), + byte_swap_32 (digest[3])); + + char response[100] = { 0 }; + + base64_encode (int_to_base64, (const u8 *) tmp_buf, tmp_len, (u8 *) response); + + const int line_len = snprintf (line_buf, line_size, "%s%s$%s", SIGNATURE_CRAM_MD5, challenge, response); + + return line_len; +} + +void module_init (module_ctx_t *module_ctx) +{ + module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT; + module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT; + + module_ctx->module_attack_exec = module_attack_exec; + module_ctx->module_benchmark_esalt = MODULE_DEFAULT; + module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT; + module_ctx->module_benchmark_mask = MODULE_DEFAULT; + module_ctx->module_benchmark_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_esalt_size; + 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_outfile = 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 = 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_hash_type = module_hash_type; + 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_DEFAULT; + 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_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_DEFAULT; + 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_DEFAULT; + module_ctx->module_unstable_warning = MODULE_DEFAULT; + module_ctx->module_warmup_disable = MODULE_DEFAULT; +}