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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 ($1, $3$)";
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static const u64 KERN_TYPE = 22931;
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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$1$16$14987802644369864387956120434709$1232$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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 != 1) && (cipher != 3)) 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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