mirror of https://github.com/hashcat/hashcat.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
3.2 KiB
135 lines
3.2 KiB
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::PBKDF2;
|
|
use Crypt::AuthEnc::GCM;
|
|
use MIME::Base64 qw (decode_base64 encode_base64);
|
|
use Crypt::KeyDerivation ':all';
|
|
|
|
sub module_constraints { [[0, 256], [64, 64], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $hkdf_salt = shift;
|
|
my $hkdf_key = shift // random_hex_string (64);
|
|
my $iterations = shift // 100000;
|
|
my $iv = shift // (random_number (0,1) ? random_hex_string (32) : random_hex_string (24));
|
|
my $ct = shift;
|
|
my $tag = shift;
|
|
my $email = shift // "31800\@hashcat.net";
|
|
|
|
my $hkdf_salt_bin = pack ("H*", $hkdf_salt);
|
|
|
|
my $kdf = Crypt::PBKDF2->new
|
|
(
|
|
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
|
|
iterations => $iterations,
|
|
output_len => 32
|
|
);
|
|
|
|
my $password_key = $kdf->PBKDF2 ($hkdf_salt_bin, $word);
|
|
|
|
my $hkdf_key_bin = pack ("H*", $hkdf_key);
|
|
|
|
my $muk = xor_len ($password_key, $hkdf_key_bin, 32);
|
|
|
|
my $pt;
|
|
|
|
my $iv_bin = pack ("H*", $iv);
|
|
|
|
if (defined $ct)
|
|
{
|
|
my $ct_bin = pack ("H*", $ct);
|
|
|
|
my $tag_bin = pack ("H*", $tag);
|
|
|
|
my $aes = Crypt::AuthEnc::GCM->new ("AES", $muk, $iv_bin);
|
|
|
|
$pt = $aes->decrypt_add ($ct_bin);
|
|
|
|
my $result_tag = $aes->decrypt_done ($tag_bin);
|
|
|
|
if ($result_tag == 1)
|
|
{
|
|
## correct password
|
|
}
|
|
else
|
|
{
|
|
$pt = "{'key_ops': ['decrypt', 'encrypt'], 'kty': 'oct', 'alg': 'A256GCM', 'k': 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=', 'ext': True, 'kid': 'xxxxxxxxxxxxxxxxxxxxxxxxxx'}";
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$pt = "{'key_ops': ['decrypt', 'encrypt'], 'kty': 'oct', 'alg': 'A256GCM', 'k': 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=', 'ext': True, 'kid': 'xxxxxxxxxxxxxxxxxxxxxxxxxx'}";
|
|
}
|
|
|
|
my $aes = Crypt::AuthEnc::GCM->new ("AES", $muk, $iv_bin);
|
|
|
|
my $ct_bin = $aes->encrypt_add ($pt);
|
|
|
|
my $tag_bin = $aes->encrypt_done ();
|
|
|
|
## so far so good
|
|
|
|
my $hash = sprintf ('$mobilekeychain$%s$%s$%s$%u$%s$%s$%s', $email, unpack ("H*", $hkdf_salt_bin), unpack ("H*", $hkdf_key_bin), $iterations, unpack ("H*", $iv_bin), unpack ("H*", $ct_bin), unpack ("H*", $tag_bin));
|
|
|
|
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, 16) eq '$mobilekeychain$';
|
|
|
|
my (undef, $signature, $email, $hkdf_salt, $hkdf_key, $iterations, $iv, $ct, $tag) = split '\$', $hash;
|
|
|
|
return unless defined $signature;
|
|
return unless defined $email;
|
|
return unless defined $hkdf_salt;
|
|
return unless defined $hkdf_key;
|
|
return unless defined $iterations;
|
|
return unless defined $iv;
|
|
return unless defined $ct;
|
|
return unless defined $tag;
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, $hkdf_salt, $hkdf_key, $iterations, $iv, $ct, $tag, $email);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
sub xor_len
|
|
{
|
|
my $in1 = shift;
|
|
my $in2 = shift;
|
|
my $len = shift;
|
|
|
|
my $out;
|
|
|
|
for (my $i = 0; $i < $len; $i++)
|
|
{
|
|
$out .= chr (ord (substr ($in1, $i, 1)) ^ ord (substr ($in2, $i, 1)));
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
|
|
1;
|