mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-24 23:48:39 +00:00
149 lines
2.5 KiB
Perl
149 lines
2.5 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
sub module_constraints { [[0, 256], [8, 8], [0, 55], [8, 8], [-1, -1]] }
|
|
|
|
sub MurmurHash
|
|
{
|
|
use integer;
|
|
|
|
my $word = shift;
|
|
my $seed = shift;
|
|
|
|
# https://tanjent.livejournal.com/756623.html
|
|
|
|
my $m = 0x7fd652ad;
|
|
my $r = 16;
|
|
|
|
my $hash = $seed;
|
|
|
|
$hash += 0xdeadbeef;
|
|
|
|
my @chars = unpack ("c*", $word);
|
|
|
|
my $len = length $word;
|
|
|
|
my $i;
|
|
|
|
for ($i = 0; $i < $len - 3; $i += 4)
|
|
{
|
|
my $c0 = $chars[$i + 0];
|
|
my $c1 = $chars[$i + 1];
|
|
my $c2 = $chars[$i + 2];
|
|
my $c3 = $chars[$i + 3];
|
|
|
|
my $l = ($c0 << 0)
|
|
| ($c1 << 8)
|
|
| ($c2 << 16)
|
|
| ($c3 << 24);
|
|
|
|
$hash += $l;
|
|
$hash *= $m;
|
|
$hash ^= ($hash & 0xffffffff) >> $r;
|
|
}
|
|
|
|
my $rem = $len & 3;
|
|
|
|
if ($rem == 3)
|
|
{
|
|
my $c0 = $chars[$i + 0];
|
|
my $c1 = $chars[$i + 1];
|
|
my $c2 = $chars[$i + 2];
|
|
my $c3 = 0;
|
|
|
|
my $l = ($c0 << 0)
|
|
| ($c1 << 8)
|
|
| ($c2 << 16)
|
|
| ($c3 << 24);
|
|
|
|
$hash += $l;
|
|
$hash *= $m;
|
|
$hash ^= ($hash & 0xffffffff) >> $r;
|
|
}
|
|
elsif ($rem == 2)
|
|
{
|
|
my $c0 = $chars[$i + 0];
|
|
my $c1 = $chars[$i + 1];
|
|
my $c2 = 0;
|
|
my $c3 = 0;
|
|
|
|
my $l = ($c0 << 0)
|
|
| ($c1 << 8)
|
|
| ($c2 << 16)
|
|
| ($c3 << 24);
|
|
|
|
$hash += $l;
|
|
$hash *= $m;
|
|
$hash ^= ($hash & 0xffffffff) >> $r;
|
|
}
|
|
elsif ($rem == 1)
|
|
{
|
|
my $c0 = $chars[$i + 0];
|
|
my $c1 = 0;
|
|
my $c2 = 0;
|
|
my $c3 = 0;
|
|
|
|
my $l = ($c0 << 0)
|
|
| ($c1 << 8)
|
|
| ($c2 << 16)
|
|
| ($c3 << 24);
|
|
|
|
$hash += $l;
|
|
$hash *= $m;
|
|
$hash ^= ($hash & 0xffffffff) >> $r;
|
|
}
|
|
|
|
$hash *= $m;
|
|
$hash ^= ($hash & 0xffffffff) >> 10;
|
|
$hash *= $m;
|
|
$hash ^= ($hash & 0xffffffff) >> 17;
|
|
|
|
return $hash & 0xffffffff;
|
|
}
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
|
|
my $salt_bin = pack ("H*", $salt);
|
|
|
|
my $seed = unpack ("N", $salt_bin); # or maybe "L" ? not enought example data to clarify
|
|
|
|
my $digest = MurmurHash ($word, $seed);
|
|
|
|
my $hash = sprintf ("%08x:%08x", $digest, $seed);
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my ($hash, $salt, $word) = split (':', $line);
|
|
|
|
return unless defined $hash;
|
|
return unless defined $word;
|
|
return unless defined $salt;
|
|
|
|
return unless length $hash == 8;
|
|
return unless length $salt == 8;
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, $salt);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|
|
|