mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-23 15:18:16 +00:00
90 lines
1.6 KiB
Perl
90 lines
1.6 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Convert::EBCDIC qw (ascii2ebcdic);
|
|
use Crypt::DES;
|
|
|
|
sub module_constraints { [[0, 8], [1, 8], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub racf_hash
|
|
{
|
|
my ($username, $password) = @_;
|
|
|
|
$username = substr ($username . " " x 8, 0, 8);
|
|
$password = substr ($password . " " x 8, 0, 8);
|
|
|
|
my $username_ebc = ascii2ebcdic ($username);
|
|
my $password_ebc = ascii2ebcdic ($password);
|
|
|
|
my @pw = split ("", $password_ebc);
|
|
|
|
for (my $i = 0; $i < 8; $i++)
|
|
{
|
|
$pw[$i] = unpack ("C", $pw[$i]);
|
|
$pw[$i] ^= 0x55;
|
|
$pw[$i] <<= 1;
|
|
$pw[$i] = pack ("C", $pw[$i] & 0xff);
|
|
}
|
|
|
|
my $key = join ("", @pw);
|
|
|
|
my $cipher = new Crypt::DES $key;
|
|
|
|
my $ciphertext = $cipher->encrypt ($username_ebc);
|
|
|
|
my $ct = unpack ("H16", $ciphertext);
|
|
|
|
return $ct;
|
|
}
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
|
|
my $hash_buf = racf_hash (uc $salt, $word);
|
|
|
|
my $hash = sprintf ('$racf$*%s*%s', uc $salt, uc $hash_buf);
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my @line_elements = split (":", $line);
|
|
|
|
return if scalar @line_elements < 2;
|
|
|
|
my $hash_in = shift @line_elements;
|
|
|
|
my $word = join (":", @line_elements);
|
|
|
|
# check signature
|
|
|
|
my @hash_elements = split ('\*', $hash_in);
|
|
|
|
return unless ($hash_elements[0] eq '$racf$');
|
|
|
|
my $salt = $hash_elements[1];
|
|
|
|
return unless defined $salt;
|
|
return unless defined $word;
|
|
|
|
$word = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word, $salt);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|