mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-28 01:18:35 +00:00
136 lines
2.6 KiB
Perl
136 lines
2.6 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::ScryptKDF qw (scrypt_raw);
|
|
use Encode;
|
|
use Crypt::CBC;
|
|
|
|
sub module_constraints { [[0, 256], [8, 8], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
my $SCRYPT_N = 16384;
|
|
my $SCRYPT_R = 8;
|
|
my $SCRYPT_P = 1;
|
|
|
|
my $DATA_FIXED = "\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10";
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iv = shift // random_bytes (16);
|
|
my $data = shift;
|
|
|
|
my $word_utf16be = encode ('UTF-16BE', $word);
|
|
|
|
my $key = scrypt_raw ($word_utf16be, $salt, $SCRYPT_N, $SCRYPT_R, $SCRYPT_P, 32);
|
|
|
|
my $aes_cbc = Crypt::CBC->new ({
|
|
cipher => "Crypt::Rijndael",
|
|
iv => $iv,
|
|
key => $key,
|
|
keysize => 32,
|
|
literal_key => 1,
|
|
header => "none",
|
|
padding => "none"
|
|
});
|
|
|
|
my $data_block = "";
|
|
|
|
if (defined ($data)) # verify
|
|
{
|
|
my $data_dec = $aes_cbc->decrypt ($data);
|
|
|
|
if ($data_dec eq $DATA_FIXED)
|
|
{
|
|
$data_block = $data;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$data = $DATA_FIXED;
|
|
|
|
$data_block = $aes_cbc->encrypt ($data);
|
|
}
|
|
|
|
my $hash = sprintf ("\$multibit\$3*%d*%d*%d*%s*%s", $SCRYPT_N, $SCRYPT_R, $SCRYPT_P, unpack ("H*", $salt), unpack ("H*", $iv . $data_block));
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
return unless (substr ($line, 0, 12) eq '$multibit$3*');
|
|
|
|
# split hash and word:
|
|
|
|
my $idx1 = index ($line, ":", 12);
|
|
|
|
return if ($idx1 < 1);
|
|
|
|
my $hash = substr ($line, 0, $idx1);
|
|
my $word = substr ($line, $idx1 + 1);
|
|
|
|
# scrypt parameters:
|
|
|
|
my $idx2 = index ($hash, "*", 12);
|
|
|
|
return if ($idx2 < 0);
|
|
|
|
my $scrypt_n = substr ($hash, 12, $idx2 - 12);
|
|
|
|
$idx1 = index ($hash, "*", $idx2 + 1);
|
|
|
|
return if ($idx1 < 0);
|
|
|
|
my $scrypt_r = substr ($hash, $idx2 + 1, $idx1 - $idx2 - 1);
|
|
|
|
$idx2 = index ($hash, "*", $idx1 + 1);
|
|
|
|
return if ($idx2 < 0);
|
|
|
|
my $scrypt_p = substr ($hash, $idx1 + 1, $idx2 - $idx1 - 1);
|
|
|
|
# salt:
|
|
|
|
$idx1 = index ($hash, "*", $idx2 + 1);
|
|
|
|
return if ($idx1 < 0);
|
|
|
|
my $salt = substr ($hash, $idx2 + 1, $idx1 - $idx2 - 1);
|
|
|
|
# IV:
|
|
|
|
my $iv = substr ($hash, $idx1 + 1, 32);
|
|
|
|
# data:
|
|
|
|
my $data = substr ($hash, $idx1 + 1 + 32, 32);
|
|
|
|
return unless $salt =~ m/^[0-9a-fA-F]{16}$/;
|
|
return unless $iv =~ m/^[0-9a-fA-F]{32}$/;
|
|
return unless $data =~ m/^[0-9a-fA-F]{32}$/;
|
|
|
|
# hex to binary/raw:
|
|
|
|
$salt = pack ("H*", $salt);
|
|
$iv = pack ("H*", $iv);
|
|
$data = pack ("H*", $data);
|
|
|
|
$word = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word, $salt, $iv, $data);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|