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hashcat/tools/test_modules/m05300.pm

91 lines
1.9 KiB
Perl

#!/usr/bin/env perl
##
## Author......: See docs/credits.txt
## License.....: MIT
##
use strict;
use warnings;
use Digest::MD5 qw (md5);
use Digest::HMAC qw (hmac hmac_hex);
sub module_constraints { [[0, 256], [-1, -1], [0, 55], [-1, -1], [-1, -1]] }
sub module_generate_hash
{
my $word = shift;
my $salt = shift || get_random_ike_salt ();
my @salt_arr = split (":", $salt);
my $msg = pack ("H*", $salt_arr[0] . $salt_arr[1] . $salt_arr[2] . $salt_arr[3] . $salt_arr[4] . $salt_arr[5]);
my $nr = pack ("H*", $salt_arr[6] . $salt_arr[7]);
my $digest = hmac ($nr , $word, \&md5, 64);
$digest = hmac_hex ($msg, $digest, \&md5, 64);
my $hash = sprintf ("%s:%s", $salt, $digest);
return $hash;
}
sub module_verify_hash
{
my $line = shift;
my @data = split (':', $line);
return unless scalar @data == 10;
my $hash = $data[0];
my $salt = join ('', @data[1 .. 8]);
my $word = $data[9];
my $word_packed = pack_if_HEX_notation ($word);
my $new_hash = module_generate_hash ($word_packed, $salt);
return ($new_hash, $word);
}
sub get_random_ike_salt
{
my $nr_buf = "";
for (my $i = 0; $i < 40; $i++)
{
$nr_buf .= get_random_chr (0, 0xff);
}
my $msg_buf = "";
for (my $i = 0; $i < 440; $i++)
{
$msg_buf .= get_random_chr (0, 0xff);
}
my $nr_buf_hex = unpack ("H*", $nr_buf);
my $msg_buf_hex = unpack ("H*", $msg_buf);
my $salt_buf = sprintf ("%s:%s:%s:%s:%s:%s:%s:%s", substr ($msg_buf_hex, 0, 256), substr ($msg_buf_hex, 256, 256), substr ($msg_buf_hex, 512, 16), substr ($msg_buf_hex, 528, 16), substr ($msg_buf_hex, 544, 320), substr ($msg_buf_hex, 864, 16), substr ($nr_buf_hex, 0, 40), substr ($nr_buf_hex, 40, 40));
return $salt_buf;
}
sub get_random_chr
{
return chr get_random_num (@_);
}
sub get_random_num
{
my $min = shift;
my $max = shift;
return int ((rand ($max - $min)) + $min);
}
1;