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Code Issues Releases Wiki Activity

Use special type for hashlist sorting in brain_compute_session()

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This commit is contained in:
Jens Steube 2020-05-12 08:54:26 +02:00
parent f9e4dc0db1
commit ff37264c36
4 changed files with 32 additions and 14 deletions
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3
include/shared.h
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@ -24,7 +24,8 @@
#include <sys/select.h>
#endif
int sort_by_stringptr (const void *p1, const void *p2);
int sort_by_string_sized (const void *p1, const void *p2);
int sort_by_stringptr (const void *p1, const void *p2);
bool overflow_check_u32_add (const u32 a, const u32 b);
bool overflow_check_u32_mul (const u32 a, const u32 b);

7
include/types.h
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@ -1626,6 +1626,13 @@ typedef struct cpu_set
} cpu_set_t;
#endif
typedef struct
{
char *buf;
int len;
} string_sized_t;
/* AES context. */
typedef struct aes_context
{

24
src/brain.c
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@ -98,10 +98,9 @@ u32 brain_compute_session (hashcat_ctx_t *hashcat_ctx)
// like OPTI_TYPE_PRECOMPUTE_MERKLE which cause different hashes in digests_buf
// in case -O is used
char **out_bufs = (char **) hccalloc (hashes->digests_cnt, sizeof (char *));
int *out_lens = (int *) hccalloc (hashes->digests_cnt, sizeof (int));
string_sized_t *string_sized_buf = (string_sized_t *) hccalloc (hashes->digests_cnt, sizeof (string_sized_t));
int out_idx = 0;
int string_sized_cnt = 0;
u8 *out_buf = (u8 *) hcmalloc (HCBUFSIZ_LARGE);
@ -115,28 +114,27 @@ u32 brain_compute_session (hashcat_ctx_t *hashcat_ctx)
{
const int out_len = hash_encode (hashcat_ctx->hashconfig, hashcat_ctx->hashes, hashcat_ctx->module_ctx, (char *) out_buf, HCBUFSIZ_LARGE, salts_idx, digest_idx);
out_bufs[out_idx] = (char *) hcmalloc (out_len + 1);
out_lens[out_idx] = out_len;
string_sized_buf[string_sized_cnt].buf = (char *) hcmalloc (out_len + 1);
string_sized_buf[string_sized_cnt].len = out_len;
memcpy (out_bufs[out_idx], out_buf, out_len);
memcpy (string_sized_buf[string_sized_cnt].buf, out_buf, out_len);
out_idx++;
string_sized_cnt++;
}
}
hcfree (out_buf);
qsort (out_bufs, out_idx, sizeof (char *), sort_by_stringptr);
qsort (string_sized_buf, string_sized_cnt, sizeof (string_sized_t), sort_by_string_sized);
for (int i = 0; i < out_idx; i++)
for (int i = 0; i < string_sized_cnt; i++)
{
XXH64_update (state, out_bufs[i], out_lens[i]);
XXH64_update (state, string_sized_buf[i].buf, string_sized_buf[i].len);
hcfree (out_bufs[i]);
hcfree (string_sized_buf[i].buf);
}
hcfree (out_bufs);
hcfree (out_lens);
hcfree (string_sized_buf);
}
const u32 session = (const u32) XXH64_digest (state);

12
src/shared.c
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@ -97,6 +97,18 @@ static const char *HASH_CATEGORY_OTP_STR = "One-Time Password
static const char *HASH_CATEGORY_PLAIN_STR = "Plaintext";
static const char *HASH_CATEGORY_FRAMEWORK_STR = "Framework";
int sort_by_string_sized (const void *p1, const void *p2)
{
string_sized_t *s1 = (string_sized_t *) p1;
string_sized_t *s2 = (string_sized_t *) p2;
const int d = s1->len - s2->len;
if (d != 0) return d;
return memcmp (s1->buf, s2->buf, s1->len);
}
int sort_by_stringptr (const void *p1, const void *p2)
{
const char* const *s1 = (const char* const *) p1;