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270 lines
15 KiB
270 lines
15 KiB
/**
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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_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_PRIVATE_KEY;
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static const char *HASH_NAME = "RSA/DSA/EC/OpenSSH Private Keys ($6$)";
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static const u64 KERN_TYPE = 22921;
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static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE;
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static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE
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| OPTS_TYPE_SUGGEST_KG
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| OPTS_TYPE_MAXIMUM_THREADS;
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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 = "$sshng$6$8$7620048997557487$1224$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";
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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 pem
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{
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u32 data_buf[16384];
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int data_len;
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int cipher;
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} pem_t;
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static const char *SIGNATURE_SSHNG = "$sshng$";
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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 (pem_t);
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return esalt_size;
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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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pem_t *pem = (pem_t *) esalt_buf;
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token_t token;
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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_SSHNG;
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token.len[0] = 7;
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token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_SIGNATURE;
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token.sep[1] = '$';
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token.len_min[1] = 1;
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token.len_max[1] = 1;
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[2] = '$';
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token.len_min[2] = 1;
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token.len_max[2] = 1;
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token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[3] = '$';
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token.len_min[3] = 16;
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token.len_max[3] = 16;
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token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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token.sep[4] = '$';
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token.len_min[4] = 1;
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token.len_max[4] = 8;
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token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[5] = '$';
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token.len_min[5] = 64; // 64 = minimum size (32 byte) to avoid out of boundary read in kernel
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token.len_max[5] = 65536; // 65536 = maximum asn.1 size fitting into 2 byte length integer
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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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// cipher
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const u8 *cipher_pos = token.buf[1];
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int cipher = hc_strtoul ((const char *) cipher_pos, NULL, 10);
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if (cipher != 6) return (PARSER_CIPHER);
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pem->cipher = cipher;
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// IV length
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const u8 *iv_len_verify_pos = token.buf[2];
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const int iv_len_verify = hc_strtoul ((const char *) iv_len_verify_pos, NULL, 10);
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if (iv_len_verify != 8) return (PARSER_SALT_LENGTH);
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// IV buffer
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const u8 *iv_pos = token.buf[3];
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const int iv_len = token.len[3];
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if (iv_len != 16) return (PARSER_SALT_LENGTH);
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salt->salt_buf[0] = hex_to_u32 (iv_pos + 0);
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salt->salt_buf[1] = hex_to_u32 (iv_pos + 8);
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salt->salt_len = 8;
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// data length
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const u8 *data_len_verify_pos = token.buf[4];
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const int data_len_verify = hc_strtoul ((const char *) data_len_verify_pos, NULL, 10);
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// data
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const u8 *data_pos = token.buf[5];
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const int data_len = token.len[5];
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pem->data_len = hex_decode (data_pos, data_len, (u8 *) pem->data_buf);
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if (data_len_verify != pem->data_len) return (PARSER_HASH_LENGTH);
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// data has to be a multiple of cipher block size
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if (pem->data_len % 8) return (PARSER_HASH_LENGTH);
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// hash
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digest[0] = pem->data_buf[0];
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digest[1] = pem->data_buf[1];
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digest[2] = pem->data_buf[2];
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digest[3] = pem->data_buf[3];
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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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pem_t *pem = (pem_t *) esalt_buf;
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u8 *out_buf = (u8 *) line_buf;
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int out_len = 0;
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out_len = snprintf ((char *) out_buf, line_size, "%s%d$8$%08x%08x$%d$",
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SIGNATURE_SSHNG,
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pem->cipher,
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byte_swap_32 (salt->salt_buf[0]),
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byte_swap_32 (salt->salt_buf[1]),
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pem->data_len);
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out_len += hex_encode ((const u8 *) pem->data_buf, pem->data_len, (u8 *) out_buf + out_len);
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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_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_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_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_DEFAULT;
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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_DEFAULT;
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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_DEFAULT;
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module_ctx->module_warmup_disable = MODULE_DEFAULT;
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}
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