mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-29 19:38:18 +00:00
137 lines
3.2 KiB
Perl
137 lines
3.2 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::PBKDF2;
|
|
use MIME::Base64 qw (encode_base64);
|
|
|
|
sub module_constraints { [[0, 256], [64, 64], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub aes_decrypt
|
|
{
|
|
my $key_main = shift;
|
|
my $key_tweak = shift;
|
|
my $data = shift;
|
|
|
|
my $python_code = <<'END_CODE';
|
|
|
|
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
|
|
from cryptography.hazmat.primitives import hashes
|
|
from cryptography.hazmat.backends import default_backend
|
|
import base64
|
|
|
|
key = base64.b64decode (key_main)
|
|
tweak = base64.b64decode (key_tweak)
|
|
|
|
cipher = Cipher(algorithms.AES(key), modes.XTS(tweak), backend=default_backend())
|
|
decryptor = cipher.decryptor()
|
|
|
|
decrypted = decryptor.update(base64.b64decode (data)[0:64])
|
|
print (decrypted.hex ())
|
|
|
|
END_CODE
|
|
|
|
# replace code with these values
|
|
|
|
$python_code =~ s/key_main/"$key_main"/;
|
|
$python_code =~ s/key_tweak/"$key_tweak"/;
|
|
$python_code =~ s/data/"$data"/;
|
|
|
|
my $output_buf = `python3 -c '$python_code'`;
|
|
|
|
$output_buf =~ s/[\r\n]//g;
|
|
|
|
$output_buf = pack ("H*", $output_buf);
|
|
|
|
return $output_buf;
|
|
}
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt1 = shift;
|
|
my $iter1 = shift // 160000;
|
|
my $enc_pass = shift // random_hex_string (128);
|
|
my $salt2 = shift // random_hex_string (64);
|
|
my $iter2 = shift // 20000;
|
|
|
|
my $pbkdf2 = Crypt::PBKDF2->new
|
|
(
|
|
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
|
|
iterations => $iter1,
|
|
output_len => 64
|
|
);
|
|
|
|
my $salt1_bin = pack ("H*", $salt1);
|
|
|
|
my $key = $pbkdf2->PBKDF2 ($salt1_bin, $word);
|
|
|
|
my $tweak = "\x00" x 16;
|
|
|
|
my $key_b64 = encode_base64 ($key, "");
|
|
my $tweak_b64 = encode_base64 ($tweak, "");
|
|
my $enc_pass_b64 = encode_base64 (pack ("H*", $enc_pass), "");
|
|
|
|
my $dec_pass = aes_decrypt ($key_b64, $tweak_b64, $enc_pass_b64);
|
|
|
|
$pbkdf2 = Crypt::PBKDF2->new
|
|
(
|
|
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
|
|
iterations => $iter2,
|
|
output_len => 32
|
|
);
|
|
|
|
my $salt2_bin = pack ("H*", $salt2);
|
|
|
|
my $hash_buf = $pbkdf2->PBKDF2 ($salt2_bin, $dec_pass);
|
|
|
|
my $hash = sprintf ("\$vbox\$0\$%s\$%s\$16\$%s\$%s\$%s\$%s", $iter1, $salt1, $enc_pass, $iter2, $salt2, unpack ("H*", $hash_buf));
|
|
|
|
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, 6) eq '$vbox$';
|
|
|
|
my (undef, $signature, $version, $iter1, $salt1, $klen, $enc_pass, $iter2, $salt2) = split '\$', $hash;
|
|
|
|
return unless defined $signature;
|
|
return unless defined $version;
|
|
return unless defined $iter1;
|
|
return unless defined $salt1;
|
|
return unless defined $klen;
|
|
return unless defined $enc_pass;
|
|
return unless defined $iter2;
|
|
return unless defined $salt2;
|
|
|
|
return unless ($version eq "0");
|
|
return unless (length $salt1 eq 64);
|
|
return unless ($klen eq "16");
|
|
return unless (length $enc_pass eq 128);
|
|
return unless (length $salt2 eq 64);
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word, $salt1, $iter1, $enc_pass, $salt2, $iter2);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|