mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-01 04:58:57 +00:00
58 lines
1.1 KiB
Perl
58 lines
1.1 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Digest::SHA qw (sha1);
|
|
use Digest::HMAC qw (hmac_hex);
|
|
|
|
sub module_constraints { [[0, 256], [8, 12], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
|
|
my $padded_time = sprintf ("%016x", int (int ($salt) / 30));
|
|
my $data = pack ('H*', $padded_time);
|
|
my $key = $word;
|
|
|
|
my $digest = hmac_hex ($data, $key, \&sha1, 64);
|
|
|
|
my $offset = hex (substr ($digest, -8)) & 0xf;
|
|
$offset *= 2;
|
|
|
|
my $token = hex (substr ($digest, $offset, 8));
|
|
$token &= 0x7fffffff;
|
|
$token %= 1000000;
|
|
|
|
# token must be leading zero padded, and salt leading zero stripped
|
|
my $hash = sprintf ("%06d:%d", $token, int ($salt));
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my ($hash, $salt, $word) = split (':', $line);
|
|
|
|
return unless defined $hash;
|
|
return unless defined $salt;
|
|
return unless defined $word;
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, $salt);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|