mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-22 08:08:10 +00:00
108 lines
2.2 KiB
Perl
108 lines
2.2 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use MIME::Base64 qw (encode_base64 decode_base64);
|
|
use Crypt::CBC;
|
|
use Crypt::PBKDF2;
|
|
|
|
sub module_constraints { [[0, 256], [16, 16], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
my $ITERATIONS = 100;
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iv = shift;
|
|
my $data = shift;
|
|
|
|
my $pbkdf2 = Crypt::PBKDF2->new
|
|
(
|
|
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA1'),
|
|
iterations => $ITERATIONS,
|
|
output_len => 32
|
|
);
|
|
|
|
my $key = $pbkdf2->PBKDF2 ($salt, $word);
|
|
|
|
if (! defined ($iv))
|
|
{
|
|
$iv = random_bytes (16);
|
|
}
|
|
|
|
my $cipher = Crypt::CBC->new ({
|
|
key => $key,
|
|
cipher => "Crypt::Rijndael",
|
|
iv => $iv,
|
|
literal_key => 1,
|
|
keysize => 32,
|
|
header => "none",
|
|
padding => "none",
|
|
});
|
|
|
|
if (! defined ($data))
|
|
{
|
|
$data = random_hex_string (64);
|
|
|
|
$data .= "\x10" x 16 # padding block
|
|
}
|
|
else
|
|
{
|
|
$data = $cipher->decrypt ($data);
|
|
|
|
my $padding_block = substr ($data, 64, 16);
|
|
|
|
if ($padding_block ne "\x10" x 16)
|
|
{
|
|
$data = "\x00" x 80; # FAKE data (length: 64 + 16)
|
|
}
|
|
}
|
|
|
|
my $encrypted_data = $cipher->encrypt ($data);
|
|
|
|
my $hash = sprintf ("%s%s%s", unpack ("H*", $salt), unpack ("H*", $iv), encode_base64 ($encrypted_data, ""));
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my ($hash, $word) = split (":", $line);
|
|
|
|
return unless (defined ($hash));
|
|
return unless (defined ($word));
|
|
|
|
return unless (length ($hash) == (32 + 32 + 108));
|
|
|
|
my $salt = substr ($hash, 0, 32);
|
|
my $iv = substr ($hash, 32, 32);
|
|
my $data = substr ($hash, 64, 108); # or until the end
|
|
|
|
return unless ($salt =~ m/^[0-9a-fA-F]{32}$/);
|
|
return unless ($iv =~ m/^[0-9a-fA-F]{32}$/);
|
|
return unless ($data =~ m/^[A-Za-z0-9+\/=]{108}$/);
|
|
|
|
$salt = pack ("H*", $salt);
|
|
$iv = pack ("H*", $iv);
|
|
$data = decode_base64 ($data);
|
|
|
|
return unless (length ($data) == (64 + 16)); # 80
|
|
|
|
$word = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word, $salt, $iv, $data);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|