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hashcat/src/modules/module_11600.c

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/**
* 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"
#include "memory.h"
#include "emu_inc_cipher_aes.h"
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#include "cpu_crc32.h"
#include "ext_lzma.h"
#include "zlib.h"
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static const u32 ATTACK_EXEC = ATTACK_EXEC_OUTSIDE_KERNEL;
static const u32 DGST_POS0 = 0;
static const u32 DGST_POS1 = 1;
static const u32 DGST_POS2 = 2;
static const u32 DGST_POS3 = 3;
static const u32 DGST_SIZE = DGST_SIZE_4_4;
static const u32 HASH_CATEGORY = HASH_CATEGORY_ARCHIVE;
static const char *HASH_NAME = "7-Zip";
static const u64 KERN_TYPE = 11600;
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE;
static const u64 OPTS_TYPE = OPTS_TYPE_STOCK_MODULE
| OPTS_TYPE_PT_GENERATE_LE
| OPTS_TYPE_SUGGEST_KG
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| OPTS_TYPE_HOOK23;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "$7z$0$14$0$$11$33363437353138333138300000000000$2365089182$16$12$d00321533b483f54a523f624a5f63269";
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; }
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 seven_zip_tmp
{
u32 h[8];
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int len;
} seven_zip_tmp_t;
typedef struct seven_zip_hook
{
u32 ukey[8];
u32 hook_success;
} seven_zip_hook_t;
typedef struct seven_zip_hook_salt
{
u32 iv_buf[4];
u32 iv_len;
u32 salt_buf[4];
u32 salt_len;
u32 crc;
u32 crc_len;
u8 data_type;
u32 data_buf[0x200000];
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u32 data_len;
u32 unpack_size;
char coder_attributes[5 + 1];
u8 coder_attributes_len;
int aes_len; // pre-computed length of the maximal (subset of) data we need for AES-CBC
} seven_zip_hook_salt_t;
typedef struct seven_zip_hook_extra
{
void **aes;
void **unp;
} seven_zip_hook_extra_t;
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static const char *SIGNATURE_SEVEN_ZIP = "$7z$";
char *module_jit_build_options (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, MAYBE_UNUSED const hashes_t *hashes, MAYBE_UNUSED const hc_device_param_t *device_param)
{
char *jit_build_options = NULL;
// Extra treatment for Apple systems
if (device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE)
{
return jit_build_options;
}
// HIP
if (device_param->opencl_device_vendor_id == VENDOR_ID_AMD_USE_HIP)
{
hc_asprintf (&jit_build_options, "-D _unroll");
}
// ROCM
if ((device_param->opencl_device_vendor_id == VENDOR_ID_AMD) && (device_param->has_vperm == true))
{
hc_asprintf (&jit_build_options, "-D _unroll");
}
return jit_build_options;
}
bool module_hook_extra_param_init (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, MAYBE_UNUSED const folder_config_t *folder_config, MAYBE_UNUSED const backend_ctx_t *backend_ctx, void *hook_extra_param)
{
seven_zip_hook_extra_t *seven_zip_hook_extra = (seven_zip_hook_extra_t *) hook_extra_param;
#define AESSIZE 8 * 1024 * 1024
#define UNPSIZE 9999999
seven_zip_hook_extra->aes = hccalloc (backend_ctx->backend_devices_cnt, sizeof (void *));
if (seven_zip_hook_extra->aes == NULL) return false;
seven_zip_hook_extra->unp = hccalloc (backend_ctx->backend_devices_cnt, sizeof (void *));
if (seven_zip_hook_extra->unp == NULL) return false;
for (int backend_devices_idx = 0; backend_devices_idx < backend_ctx->backend_devices_cnt; backend_devices_idx++)
{
hc_device_param_t *device_param = &backend_ctx->devices_param[backend_devices_idx];
if (device_param->skipped == true) continue;
seven_zip_hook_extra->aes[backend_devices_idx] = hcmalloc (AESSIZE);
if (seven_zip_hook_extra->aes[backend_devices_idx] == NULL) return false;
seven_zip_hook_extra->unp[backend_devices_idx] = hcmalloc (UNPSIZE);
if (seven_zip_hook_extra->unp[backend_devices_idx] == NULL) return false;
}
return true;
}
bool module_hook_extra_param_term (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, MAYBE_UNUSED const folder_config_t *folder_config, MAYBE_UNUSED const backend_ctx_t *backend_ctx, void *hook_extra_param)
{
seven_zip_hook_extra_t *seven_zip_hook_extra = (seven_zip_hook_extra_t *) hook_extra_param;
for (int backend_devices_idx = 0; backend_devices_idx < backend_ctx->backend_devices_cnt; backend_devices_idx++)
{
hc_device_param_t *device_param = &backend_ctx->devices_param[backend_devices_idx];
if (device_param->skipped == true) continue;
hcfree (seven_zip_hook_extra->aes[backend_devices_idx]);
hcfree (seven_zip_hook_extra->unp[backend_devices_idx]);
}
hcfree (seven_zip_hook_extra->aes);
hcfree (seven_zip_hook_extra->unp);
return true;
}
void module_hook23 (hc_device_param_t *device_param, MAYBE_UNUSED const void *hook_extra_param, const void *hook_salts_buf, const u32 salt_pos, const u64 pw_pos)
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{
seven_zip_hook_t *hook_items = (seven_zip_hook_t *) device_param->hooks_buf;
const seven_zip_hook_salt_t *seven_zips = (const seven_zip_hook_salt_t *) hook_salts_buf;
const seven_zip_hook_salt_t *seven_zip = &seven_zips[salt_pos];
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const seven_zip_hook_extra_t *seven_zip_hook_extra = (const seven_zip_hook_extra_t *) hook_extra_param;
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u8 data_type = seven_zip->data_type;
const u32 *data_buf = seven_zip->data_buf;
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u32 unpack_size = seven_zip->unpack_size;
// this hook data needs to be updated (the "hook_success" variable):
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seven_zip_hook_t *hook_item = &hook_items[pw_pos];
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const u32 *ukey = (const u32 *) hook_item->ukey;
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// init AES
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AES_KEY aes_key;
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memset (&aes_key, 0, sizeof (aes_key));
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aes256_set_decrypt_key (aes_key.rdk, ukey, (u32 *) te0, (u32 *) te1, (u32 *) te2, (u32 *) te3, (u32 *) td0, (u32 *) td1, (u32 *) td2, (u32 *) td3);
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int aes_len = seven_zip->aes_len;
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u32 data[4];
u32 out[4];
u32 iv[4];
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iv[0] = seven_zip->iv_buf[0];
iv[1] = seven_zip->iv_buf[1];
iv[2] = seven_zip->iv_buf[2];
iv[3] = seven_zip->iv_buf[3];
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u32 *out_full = (u32 *) seven_zip_hook_extra->aes[device_param->device_id];
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// if aes_len > 16 we need to loop
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int i = 0;
int j = 0;
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for (i = 0, j = 0; i < aes_len - 16; i += 16, j += 4)
{
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data[0] = data_buf[j + 0];
data[1] = data_buf[j + 1];
data[2] = data_buf[j + 2];
data[3] = data_buf[j + 3];
aes256_decrypt (aes_key.rdk, data, out, (u32 *) td0, (u32 *) td1, (u32 *) td2, (u32 *) td3, (u32 *) td4);
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out[0] ^= iv[0];
out[1] ^= iv[1];
out[2] ^= iv[2];
out[3] ^= iv[3];
iv[0] = data[0];
iv[1] = data[1];
iv[2] = data[2];
iv[3] = data[3];
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out_full[j + 0] = out[0];
out_full[j + 1] = out[1];
out_full[j + 2] = out[2];
out_full[j + 3] = out[3];
}
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// we need to run it at least once:
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data[0] = data_buf[j + 0];
data[1] = data_buf[j + 1];
data[2] = data_buf[j + 2];
data[3] = data_buf[j + 3];
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aes256_decrypt (aes_key.rdk, data, out, (u32 *) td0, (u32 *) td1, (u32 *) td2, (u32 *) td3, (u32 *) td4);
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out[0] ^= iv[0];
out[1] ^= iv[1];
out[2] ^= iv[2];
out[3] ^= iv[3];
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out_full[j + 0] = out[0];
out_full[j + 1] = out[1];
out_full[j + 2] = out[2];
out_full[j + 3] = out[3];
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/*
* check the CRC32 "hash"
*/
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u32 seven_zip_crc = seven_zip->crc;
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u32 crc;
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if (data_type == 0) // uncompressed
{
crc = cpu_crc32_buffer ((u8 *) out_full, unpack_size);
}
else
{
u32 crc_len = seven_zip->crc_len;
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const char *coder_attributes = seven_zip->coder_attributes;
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// input buffers and length
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u8 *compressed_data = (u8 *) out_full;
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SizeT compressed_data_len = aes_len;
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// output buffers and length
unsigned char *decompressed_data = (unsigned char *) seven_zip_hook_extra->unp[device_param->device_id];
SizeT decompressed_data_len = crc_len;
int ret;
if (data_type == 1) // LZMA1
{
ret = hc_lzma1_decompress (compressed_data, &compressed_data_len, decompressed_data, &decompressed_data_len, coder_attributes);
}
else if (data_type == 7) // inflate using zlib (DEFLATE compression)
{
ret = SZ_ERROR_DATA;
z_stream inf;
inf.zalloc = Z_NULL;
inf.zfree = Z_NULL;
inf.opaque = Z_NULL;
inf.avail_in = compressed_data_len;
inf.next_in = compressed_data;
inf.avail_out = decompressed_data_len;
inf.next_out = decompressed_data;
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// inflate:
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inflateInit2 (&inf, -MAX_WBITS);
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int zlib_ret = inflate (&inf, Z_NO_FLUSH);
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inflateEnd (&inf);
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if ((zlib_ret == Z_OK) || (zlib_ret == Z_STREAM_END))
{
ret = SZ_OK;
}
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}
else // we only support LZMA2 in addition to LZMA1
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{
ret = hc_lzma2_decompress (compressed_data, &compressed_data_len, decompressed_data, &decompressed_data_len, coder_attributes);
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}
if (ret != SZ_OK)
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{
hook_item->hook_success = 0;
return;
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}
crc = cpu_crc32_buffer (decompressed_data, crc_len);
}
if (crc == seven_zip_crc)
{
hook_item->hook_success = 1;
}
else
{
hook_item->hook_success = 0;
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}
}
u64 module_hook_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 hook_size = (const u64) sizeof (seven_zip_hook_t);
return hook_size;
}
u64 module_hook_salt_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 hook_salt_size = (const u64) sizeof (seven_zip_hook_salt_t);
return hook_salt_size;
}
u64 module_hook_extra_param_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 hook_extra_param_size = (const u64) sizeof (seven_zip_hook_extra_t);
return hook_extra_param_size;
}
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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)
{
const u64 tmp_size = (const u64) sizeof (seven_zip_tmp_t);
return tmp_size;
}
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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const bool optimized_kernel = (hashconfig->opti_type & OPTI_TYPE_OPTIMIZED_KERNEL);
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u32 pw_max = PW_MAX;
if (optimized_kernel == true)
{
pw_max = 20;
}
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return pw_max;
}
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u32 module_kernel_loops_min (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 bool optimized_kernel = (hashconfig->opti_type & OPTI_TYPE_OPTIMIZED_KERNEL);
u32 kernel_loops_min = KERNEL_LOOPS_MIN;
if (optimized_kernel == true)
{
kernel_loops_min = 4096;
}
return kernel_loops_min;
}
u32 module_kernel_loops_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)
{
const bool optimized_kernel = (hashconfig->opti_type & OPTI_TYPE_OPTIMIZED_KERNEL);
u32 kernel_loops_max = KERNEL_LOOPS_MAX;
if (optimized_kernel == true)
{
kernel_loops_max = 4096;
}
return kernel_loops_max;
}
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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)
{
u32 *digest = (u32 *) digest_buf;
seven_zip_hook_salt_t *seven_zip = (seven_zip_hook_salt_t *) hook_salt_buf;
hc_token_t token;
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memset (&token, 0, sizeof (hc_token_t));
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token.token_cnt = 11;
token.signatures_cnt = 1;
token.signatures_buf[0] = SIGNATURE_SEVEN_ZIP;
token.len[0] = 4;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
token.sep[1] = '$';
token.len[1] = 1;
token.attr[1] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[2] = '$';
token.len_min[2] = 1;
token.len_max[2] = 2;
token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[3] = '$';
token.len[3] = 1;
token.attr[3] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[4] = '$';
token.len_min[4] = 0;
token.len_max[4] = 64;
token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH;
token.sep[5] = '$';
token.len_min[5] = 1;
token.len_max[5] = 2;
token.attr[5] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[6] = '$';
token.len[6] = 32;
token.attr[6] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
token.sep[7] = '$';
token.len_min[7] = 1;
token.len_max[7] = 10;
token.attr[7] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[8] = '$';
token.len_min[8] = 1;
token.len_max[8] = 8;
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token.attr[8] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[9] = '$';
token.len_min[9] = 1;
token.len_max[9] = 8;
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token.attr[9] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
token.sep[10] = '$';
token.len_min[10] = 2;
token.len_max[10] = 0x200000 * 4 * 2;
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token.attr[10] = TOKEN_ATTR_VERIFY_LENGTH;
const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
const u8 *data_type_pos = token.buf[ 1];
const u8 *NumCyclesPower_pos = token.buf[ 2];
const u8 *salt_len_pos = token.buf[ 3];
const u8 *salt_buf_pos = token.buf[ 4];
const u8 *iv_len_pos = token.buf[ 5];
const u8 *iv_buf_pos = token.buf[ 6];
const u8 *crc_buf_pos = token.buf[ 7];
const u8 *data_len_pos = token.buf[ 8];
const u8 *unpack_size_pos = token.buf[ 9];
const u8 *data_buf_pos = token.buf[10];
const int data_type_len = token.len[ 1];
const int NumCyclesPower_len = token.len[ 2];
const int salt_len_len = token.len[ 3];
const int salt_buf_len = token.len[ 4];
const int iv_len_len = token.len[ 5];
const int iv_buf_len = token.len[ 6];
const int crc_buf_len = token.len[ 7];
const int data_len_len = token.len[ 8];
const int unpack_size_len = token.len[ 9];
int data_buf_len = token.len[10];
// fields only used when data was compressed:
u8 *crc_len_pos = (u8 *) strchr ((const char *) data_buf_pos, '$');
u32 crc_len_len = 0;
u8 *coder_attributes_pos = 0;
u32 coder_attributes_len = 0;
if (crc_len_pos != NULL)
{
data_buf_len = crc_len_pos - data_buf_pos;
crc_len_pos++;
coder_attributes_pos = (u8 *) strchr ((const char *) crc_len_pos, '$');
if (coder_attributes_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED);
crc_len_len = coder_attributes_pos - crc_len_pos;
coder_attributes_pos++;
}
if (is_valid_hex_string (data_buf_pos, data_buf_len) == false) return (PARSER_SALT_ENCODING);
const int iter = hc_strtoul ((const char *) NumCyclesPower_pos, NULL, 10);
const int crc = hc_strtoul ((const char *) crc_buf_pos, NULL, 10);
const int data_type = hc_strtoul ((const char *) data_type_pos, NULL, 10);
const int salt_len = hc_strtoul ((const char *) salt_len_pos, NULL, 10);
const int iv_len = hc_strtoul ((const char *) iv_len_pos, NULL, 10);
const int unpack_size = hc_strtoul ((const char *) unpack_size_pos, NULL, 10);
const int data_len = hc_strtoul ((const char *) data_len_pos, NULL, 10);
// if neither uncompressed nor truncated, then we need the length for crc and coder attributes
int crc_len = 0;
bool is_compressed = ((data_type != 0) && (data_type != 0x80));
if (is_compressed == true)
{
if (crc_len_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED);
coder_attributes_len = line_len - 1 - 2 - 1 - data_type_len - 1 - NumCyclesPower_len - 1 - salt_len_len - 1 - salt_buf_len - 1 - iv_len_len - 1 - iv_buf_len - 1 - crc_buf_len - 1 - data_len_len - 1 - unpack_size_len - 1 - data_buf_len - 1 - crc_len_len - 1;
crc_len = hc_strtoul ((const char *) crc_len_pos, NULL, 10);
}
/**
* verify some data
*/
// this check also returns an error with data_type == 0x80 (special case that means "truncated")
if ((data_type != 0) && (data_type != 1) && (data_type != 2) && (data_type != 7))
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{
return (PARSER_SALT_VALUE);
}
if (salt_len != 0) return (PARSER_SALT_VALUE);
if ((data_len * 2) != data_buf_len) return (PARSER_SALT_VALUE);
if (data_len > 0x200000 * 4) return (PARSER_SALT_VALUE);
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if (unpack_size > data_len) return (PARSER_SALT_VALUE);
if (is_compressed == true)
{
if (crc_len_len > 7) return (PARSER_SALT_VALUE);
if (coder_attributes_len > 10) return (PARSER_SALT_VALUE);
if ((coder_attributes_len % 2) != 0) return (PARSER_SALT_VALUE);
// we should be more strict about the needed attribute_len:
if (data_type == 1) // LZMA1
{
if ((coder_attributes_len / 2) != 5) return (PARSER_SALT_VALUE);
}
else if (data_type == 2) // LZMA2
{
if ((coder_attributes_len / 2) != 1) return (PARSER_SALT_VALUE);
}
}
/**
* store data
*/
seven_zip->data_type = data_type;
seven_zip->iv_buf[0] = hex_to_u32 (iv_buf_pos + 0);
seven_zip->iv_buf[1] = hex_to_u32 (iv_buf_pos + 8);
seven_zip->iv_buf[2] = hex_to_u32 (iv_buf_pos + 16);
seven_zip->iv_buf[3] = hex_to_u32 (iv_buf_pos + 24);
seven_zip->iv_len = iv_len;
memcpy (seven_zip->salt_buf, salt_buf_pos, salt_buf_len); // we just need that for later ascii_digest()
seven_zip->salt_len = 0;
seven_zip->crc = crc;
for (int i = 0, j = 0; j < data_buf_len; i += 1, j += 8)
{
seven_zip->data_buf[i] = hex_to_u32 (data_buf_pos + j);
}
seven_zip->data_len = data_len;
seven_zip->unpack_size = unpack_size;
seven_zip->crc_len = crc_len;
memset (seven_zip->coder_attributes, 0, sizeof (seven_zip->coder_attributes));
seven_zip->coder_attributes_len = 0;
if (is_compressed == 1)
{
if (is_valid_hex_string (coder_attributes_pos, coder_attributes_len) == false) return (PARSER_SALT_ENCODING);
for (u32 i = 0, j = 0; j < coder_attributes_len; i += 1, j += 2)
{
seven_zip->coder_attributes[i] = hex_to_u8 (&coder_attributes_pos[j]);
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seven_zip->coder_attributes_len++;
}
}
// normally: crc_len <= unpacksize <= packsize (== data_len)
int aes_len = data_len;
if (crc_len != 0) // it is 0 only in case of uncompressed data or truncated data
{
// in theory we could just use crc_len, but sometimes (very rare) the compressed data
// is larger than the original data! (because of some additional bytes from lzma/headers)
// the +0.5 is used to round up (just to be sure we don't truncate)
if (data_type == 1) // LZMA1 uses more bytes
{
aes_len = 32.5f + (float) crc_len * 1.05f; // +5% max (only for small random inputs)
}
else if (data_type == 2) // LZMA2 is more clever (e.g. uncompressed chunks)
{
aes_len = 4.5f + (float) crc_len * 1.01f; // +1% max (only for small random inputs)
}
// just make sure we never go beyond the data_len limit itself
aes_len = MIN (aes_len, data_len);
}
seven_zip->aes_len = aes_len;
// real salt
salt->salt_buf[0] = seven_zip->data_buf[0];
salt->salt_buf[1] = seven_zip->data_buf[1];
salt->salt_buf[2] = seven_zip->data_buf[2];
salt->salt_buf[3] = seven_zip->data_buf[3];
salt->salt_len = 16;
salt->salt_sign[0] = data_type;
salt->salt_iter = 1u << iter;
/**
* digest
*/
digest[0] = crc;
digest[1] = 0;
digest[2] = 0;
digest[3] = 0;
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 seven_zip_hook_salt_t *seven_zip = (const seven_zip_hook_salt_t *) hook_salt_buf;
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const u32 data_len = seven_zip->data_len;
char *data_buf = (char *) hcmalloc ((data_len * 2) + 1);
for (u32 i = 0, j = 0; i < data_len; i += 1, j += 2)
{
const u8 *ptr = (const u8 *) seven_zip->data_buf;
snprintf (data_buf + j, (data_len * 2) + 1 - j, "%02x", ptr[i]);
}
u32 salt_iter = salt->salt_iter;
u32 iv[4];
iv[0] = byte_swap_32 (seven_zip->iv_buf[0]);
iv[1] = byte_swap_32 (seven_zip->iv_buf[1]);
iv[2] = byte_swap_32 (seven_zip->iv_buf[2]);
iv[3] = byte_swap_32 (seven_zip->iv_buf[3]);
u32 iv_len = seven_zip->iv_len;
u32 cost = 0; // the log2 () of salt_iter
while (salt_iter >>= 1)
{
cost++;
}
int bytes_written = snprintf (line_buf, line_size, "%s%u$%u$%u$%s$%u$%08x%08x%08x%08x$%u$%u$%u$%s",
SIGNATURE_SEVEN_ZIP,
salt->salt_sign[0],
cost,
seven_zip->salt_len,
(const char *) seven_zip->salt_buf,
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iv_len,
iv[0],
iv[1],
iv[2],
iv[3],
seven_zip->crc,
seven_zip->data_len,
seven_zip->unpack_size,
data_buf);
if (seven_zip->data_type > 0)
{
bytes_written += snprintf (line_buf + bytes_written, line_size - bytes_written, "$%u$", seven_zip->crc_len);
const u8 *ptr = (const u8 *) seven_zip->coder_attributes;
for (u32 i = 0, j = 0; i < seven_zip->coder_attributes_len; i += 1, j += 2)
{
bytes_written += snprintf (line_buf + bytes_written, line_size - bytes_written, "%02x", ptr[i]);
}
}
hcfree (data_buf);
return bytes_written;
}
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_charset = MODULE_DEFAULT;
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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_deprecated_notice = MODULE_DEFAULT;
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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_DEFAULT;
module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
module_ctx->module_extra_tuningdb_block = MODULE_DEFAULT;
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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_postprocess = MODULE_DEFAULT;
module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
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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_potfile = MODULE_DEFAULT;
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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_hashes_count_min = MODULE_DEFAULT;
module_ctx->module_hashes_count_max = MODULE_DEFAULT;
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module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
module_ctx->module_hook_extra_param_size = module_hook_extra_param_size;
module_ctx->module_hook_extra_param_init = module_hook_extra_param_init;
module_ctx->module_hook_extra_param_term = module_hook_extra_param_term;
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module_ctx->module_hook12 = MODULE_DEFAULT;
module_ctx->module_hook23 = module_hook23;
module_ctx->module_hook_salt_size = module_hook_salt_size;
module_ctx->module_hook_size = module_hook_size;
module_ctx->module_jit_build_options = module_jit_build_options;
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_kernel_loops_max;
module_ctx->module_kernel_loops_min = module_kernel_loops_min;
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module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
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;
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_custom_check = MODULE_DEFAULT;
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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_pw_max;
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_tmp_size;
module_ctx->module_unstable_warning = MODULE_DEFAULT;
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module_ctx->module_warmup_disable = MODULE_DEFAULT;
}