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275 lines
16 KiB
275 lines
16 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 ($4$)";
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static const u64 KERN_TYPE = 22941;
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static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE;
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static const u64 OPTS_TYPE = OPTS_TYPE_STOCK_MODULE
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| OPTS_TYPE_PT_GENERATE_LE
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| OPTS_TYPE_SUGGEST_KG;
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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$4$16$01684556100059289727957814500256$1232$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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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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_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] = '$';
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token.len[1] = 1;
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token.attr[1] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[2] = '$';
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token.len[2] = 2;
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token.attr[2] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[3] = '$';
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token.len[3] = 32;
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token.attr[3] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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token.sep[4] = '$';
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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 != 4) 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 != 16) 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 != 32) 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_buf[2] = hex_to_u32 (iv_pos + 16);
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salt->salt_buf[3] = hex_to_u32 (iv_pos + 24);
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salt->salt_len = 16;
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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 % 16) 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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const pem_t *pem = (const 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$16$%08x%08x%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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byte_swap_32 (salt->salt_buf[2]),
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byte_swap_32 (salt->salt_buf[3]),
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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_charset = 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_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_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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