mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-23 23:19:09 +00:00
149 lines
3.0 KiB
Perl
149 lines
3.0 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Digest::SHA qw (sha256);
|
|
use Crypt::PBKDF2;
|
|
use Crypt::CBC;
|
|
|
|
sub module_constraints { [[0, 256], [32, 32], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $hash_ver = shift;
|
|
my $file_ver = shift;
|
|
my $iter = shift;
|
|
my $iv = shift;
|
|
my $data = shift;
|
|
|
|
my $FORMAT = 1;
|
|
|
|
my $is_decrypt = defined ($data);
|
|
|
|
if ($is_decrypt == 0)
|
|
{
|
|
my $type = random_number (1, 2);
|
|
|
|
if ($type == 1)
|
|
{
|
|
$hash_ver = 1;
|
|
$file_ver = 2;
|
|
|
|
$iter = 100000;
|
|
$salt = substr ($salt, 0, 32); # full one
|
|
}
|
|
else
|
|
{
|
|
$hash_ver = 2;
|
|
$file_ver = 1;
|
|
|
|
$iter = 4000;
|
|
$salt = substr ($salt, 0, 16);
|
|
}
|
|
|
|
$salt = pack ("H*", $salt);
|
|
|
|
$iv = random_bytes (16);
|
|
$data = random_bytes (32);
|
|
|
|
$data .= sha256 ($data);
|
|
}
|
|
|
|
my $pbkdf2 = Crypt::PBKDF2->new
|
|
(
|
|
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA1'),
|
|
iterations => $iter,
|
|
output_len => 16,
|
|
);
|
|
|
|
my $key = $pbkdf2->PBKDF2 ($salt, $word);
|
|
|
|
# AES-CBC
|
|
|
|
my $cipher = Crypt::CBC->new ({
|
|
cipher => "Crypt::Rijndael",
|
|
key => $key,
|
|
iv => $iv,
|
|
keysize => 16,
|
|
literal_key => 1,
|
|
header => "none",
|
|
padding => "none"
|
|
});
|
|
|
|
if ($is_decrypt == 1)
|
|
{
|
|
my $hash_data = $data;
|
|
|
|
$data = "WRONG";
|
|
|
|
my $decrypted = $cipher->decrypt ($hash_data);
|
|
|
|
my $raw_data = substr ($decrypted, 0, 32);
|
|
my $checksum = substr ($decrypted, 32, 32);
|
|
|
|
my $sha256_of_data = sha256 ($raw_data);
|
|
|
|
if ($sha256_of_data eq $checksum)
|
|
{
|
|
$data = $decrypted;
|
|
}
|
|
}
|
|
|
|
my $encrypted = $cipher->encrypt ($data);
|
|
|
|
my $hash = sprintf ("\$iwork\$%i\$%i\$%i\$%i\$%s\$%s\$%s", $hash_ver, $file_ver, $FORMAT, $iter, unpack ("H*", $salt), unpack ("H*", $iv), unpack ("H*", $encrypted));
|
|
|
|
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, 7) eq '$iwork$';
|
|
|
|
my (undef, undef, $hash_ver, $file_ver, $format, $iter, $salt, $iv, $data) = split '\$', $hash;
|
|
|
|
next unless (defined ($hash_ver));
|
|
next unless (defined ($file_ver));
|
|
next unless (defined ($format));
|
|
next unless (defined ($iter));
|
|
next unless (defined ($salt));
|
|
next unless (defined ($iv));
|
|
next unless (defined ($data));
|
|
|
|
next unless (($hash_ver eq '1') or ($hash_ver eq '2'));
|
|
next unless (($file_ver eq '1') or ($file_ver eq '2'));
|
|
|
|
next unless ($format eq '1');
|
|
|
|
$salt = pack ("H*", $salt);
|
|
$iv = pack ("H*", $iv);
|
|
$data = pack ("H*", $data);
|
|
|
|
$iter = int ($iter);
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, $salt, $hash_ver, $file_ver, $iter, $iv, $data);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|