mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-18 06:08:16 +00:00
95 lines
2.2 KiB
Perl
95 lines
2.2 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::PBKDF2;
|
|
use Crypt::CBC;
|
|
|
|
sub module_constraints { [[0, 255], [-1, -1], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift; # unused
|
|
my $version = shift // 5;
|
|
my $iter = shift // 10000;
|
|
my $user_salt = shift // random_hex_string (128);
|
|
my $ck_salt = shift // random_hex_string (128);
|
|
my $user_iv = shift // random_hex_string (32);
|
|
my $masterkey_blob = shift; # use this as hint regular or verify call
|
|
|
|
my $kdf = Crypt::PBKDF2->new
|
|
(
|
|
hash_class => 'HMACSHA1',
|
|
iterations => $iter,
|
|
output_len => 32
|
|
);
|
|
|
|
my $user_salt_bin = pack ("H*", $user_salt);
|
|
|
|
my $key_bin = $kdf->PBKDF2 ($user_salt_bin, $word);
|
|
|
|
my $iv_bin = pack ("H*", $user_iv);
|
|
|
|
my $cipher = Crypt::CBC->new ({
|
|
key => $key_bin,
|
|
cipher => "Crypt::Rijndael",
|
|
iv => $iv_bin,
|
|
literal_key => 1,
|
|
header => "none",
|
|
keysize => 32,
|
|
padding => "standard",
|
|
});
|
|
|
|
my $decrypted_bin = random_bytes (83);
|
|
|
|
if (defined $masterkey_blob)
|
|
{
|
|
my $encrypted_bin = pack ("H*", $masterkey_blob);
|
|
|
|
my $test_bin = $cipher->decrypt ($encrypted_bin);
|
|
|
|
if (length ($test_bin) == 83)
|
|
{
|
|
$decrypted_bin = $test_bin;
|
|
}
|
|
}
|
|
|
|
my $encrypted_bin = $cipher->encrypt ($decrypted_bin);
|
|
|
|
my $hash = sprintf ("\$ab\$%u*0*%u*%s*%s*%s*%s", $version, $iter, $user_salt, $ck_salt, $user_iv, unpack ("H*", $encrypted_bin));
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my ($hash, $word) = split (':', $line);
|
|
|
|
return unless defined $hash;
|
|
return unless defined $word;
|
|
|
|
my ($tag, $cipher, $iter, $user_salt, $ck_salt, $user_iv, $masterkey_blob) = split (/\*/, $hash);
|
|
|
|
my (undef, $signature, $version) = split (/\$/, $tag);
|
|
|
|
return unless $signature eq "ab";
|
|
return unless $cipher eq "0";
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, undef, $version, $iter, $user_salt, $ck_salt, $user_iv, $masterkey_blob);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|