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We need an esalt to hold the unused IV otherwise the unique salt count becomes incorrect in multihash sitations

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This commit is contained in:
jsteube 2016-01-09 21:35:29 +01:00
parent f0a84a2410
commit 3cdee2e06e
4 changed files with 22 additions and 11 deletions
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6
include/types.h
View File

@ -31,6 +31,12 @@ typedef struct
} salt_t;
typedef struct
{
uint iv[4];
} rar5_t;
typedef struct
{
int V;

1
src/oclHashcat.c
View File

@ -9911,6 +9911,7 @@ int main (int argc, char **argv)
case 11900: esalt_size = sizeof (pbkdf2_md5_t); break;
case 12000: esalt_size = sizeof (pbkdf2_sha1_t); break;
case 12100: esalt_size = sizeof (pbkdf2_sha512_t); break;
case 13000: esalt_size = sizeof (rar5_t); break;
}
data.esalt_size = esalt_size;

24
src/shared.c
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@ -8071,16 +8071,20 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
}
else if (hash_mode == 13000)
{
rar5_t *rar5s = (rar5_t *) data.esalts_buf;
rar5_t *rar5 = &rar5s[salt_pos];
snprintf (out_buf, len-1, "$rar5$16$%08x%08x%08x%08x$%u$%08x%08x%08x%08x$8$%08x%08x",
salt.salt_buf[0],
salt.salt_buf[1],
salt.salt_buf[2],
salt.salt_buf[3],
salt.salt_sign[0],
salt.salt_buf[4],
salt.salt_buf[5],
salt.salt_buf[6],
salt.salt_buf[7],
rar5->iv[0],
rar5->iv[1],
rar5->iv[2],
rar5->iv[3],
byte_swap_32 (digest_buf[0]),
byte_swap_32 (digest_buf[1])
);
@ -18394,6 +18398,8 @@ int rar5_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
salt_t *salt = hash_buf->salt;
rar5_t *rar5 = (rar5_t *) hash_buf->esalt;
/**
* parse line
*/
@ -18471,12 +18477,12 @@ int rar5_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
salt->salt_buf[2] = hex_to_uint (&salt_buf[16]);
salt->salt_buf[3] = hex_to_uint (&salt_buf[24]);
salt->salt_buf[4] = hex_to_uint (&iv[ 0]);
salt->salt_buf[5] = hex_to_uint (&iv[ 8]);
salt->salt_buf[6] = hex_to_uint (&iv[16]);
salt->salt_buf[7] = hex_to_uint (&iv[24]);
rar5->iv[0] = hex_to_uint (&iv[ 0]);
rar5->iv[1] = hex_to_uint (&iv[ 8]);
rar5->iv[2] = hex_to_uint (&iv[16]);
rar5->iv[3] = hex_to_uint (&iv[24]);
salt->salt_len = 16 + 16;
salt->salt_len = 16;
salt->salt_sign[0] = iterations;

2
tools/test.pl
View File

@ -6605,8 +6605,6 @@ END_CODE
my $hash = $pbkdf2->PBKDF2 ($salt_buf_bin, $word_buf);
printf ("%s\n", unpack ("H*", $hash));
my $hash_final = substr ($hash, 0, 8)
^ substr ($hash, 8, 8)
^ substr ($hash, 16, 8)