mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-27 02:18:21 +00:00
142 lines
2.8 KiB
Perl
142 lines
2.8 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::DES;
|
|
use Crypt::DES_EDE3;
|
|
use Digest::SHA qw (sha1);
|
|
use Digest::HMAC qw (hmac);
|
|
|
|
sub module_constraints { [[0, 256], [40, 40], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $global_salt = shift;
|
|
my $entry_salt = shift // random_hex_string (40);
|
|
my $ct = shift;
|
|
|
|
my $global_salt_bin = pack ("H*", $global_salt);
|
|
my $entry_salt_bin = pack ("H*", $entry_salt);
|
|
|
|
my $hp = sha1 ($global_salt_bin . $word);
|
|
|
|
my $pes = substr ($entry_salt_bin . ("\x00" x 20), 0, 20);
|
|
|
|
my $chp = sha1 ($hp . $entry_salt_bin);
|
|
|
|
my $k1 = hmac ($pes . $entry_salt_bin, $chp, \&sha1, 64);
|
|
|
|
my $tk = hmac ($pes, $chp, \&sha1, 64);
|
|
|
|
my $k2 = hmac ($tk . $entry_salt_bin, $chp, \&sha1, 64);
|
|
|
|
my $k = $k1 . $k2;
|
|
|
|
my $key = substr ($k, 0, 24);
|
|
my $iv = substr ($k, 32, 8);
|
|
|
|
my $pt;
|
|
|
|
if (defined $ct)
|
|
{
|
|
my $ct_bin = pack ("H*", $ct);
|
|
|
|
my $ede3 = Crypt::DES_EDE3->new ($key);
|
|
|
|
my $ct1_bin = substr ($ct_bin, 0, 8);
|
|
my $ct2_bin = substr ($ct_bin, 8, 8);
|
|
|
|
my $pt1 = $ede3->decrypt ($ct1_bin);
|
|
|
|
$pt1 = exclusive_or ($pt1, $iv);
|
|
|
|
my $pt2 = $ede3->decrypt ($ct2_bin);
|
|
|
|
$pt2 = exclusive_or ($pt2, $ct1_bin);
|
|
|
|
$pt = $pt1 . $pt2;
|
|
|
|
if ($pt ne "password-check\x02\x02")
|
|
{
|
|
$pt = "\xff" x 16;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$pt = "password-check\x02\x02";
|
|
}
|
|
|
|
my $ede3 = Crypt::DES_EDE3->new ($key);
|
|
|
|
my $pt1 = substr ($pt, 0, 8);
|
|
my $pt2 = substr ($pt, 8, 8);
|
|
|
|
$pt1 = exclusive_or ($pt1, $iv);
|
|
|
|
my $ct1_bin = $ede3->encrypt ($pt1);
|
|
|
|
$pt2 = exclusive_or ($pt2, $ct1_bin);
|
|
|
|
my $ct2_bin = $ede3->encrypt ($pt2);
|
|
|
|
my $ct_bin = $ct1_bin . $ct2_bin;
|
|
|
|
my $hash = sprintf ('$mozilla$*3DES*%s*%s*%s', unpack ("H*", $global_salt_bin), unpack ("H*", $entry_salt_bin), unpack ("H*", $ct_bin));
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my $idx = index ($line, ':');
|
|
|
|
return unless $idx >= 0;
|
|
|
|
my $hash = substr ($line, 0, $idx);
|
|
my $word = substr ($line, $idx + 1);
|
|
|
|
return unless substr ($hash, 0, 9) eq '$mozilla$';
|
|
|
|
my ($signature, $type, $global_salt, $entry_salt, $ct) = split '\*', $hash;
|
|
|
|
return unless defined $signature;
|
|
return unless defined $type;
|
|
return unless defined $global_salt;
|
|
return unless defined $entry_salt;
|
|
return unless defined $ct;
|
|
|
|
return unless $type eq '3DES';
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, $global_salt, $entry_salt, $ct);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
sub exclusive_or
|
|
{
|
|
my $in1 = shift;
|
|
my $in2 = shift;
|
|
|
|
my $out = "";
|
|
|
|
for (my $i = 0; $i < length ($in1); $i++) # $i < $len
|
|
{
|
|
$out .= chr (ord (substr ($in1, $i, 1)) ^ ord (substr ($in2, $i, 1)));
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
|
|
1;
|