mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-22 08:08:10 +00:00
133 lines
3.6 KiB
Perl
133 lines
3.6 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Digest::SHA qw (sha1 sha512);
|
|
use Crypt::PBKDF2;
|
|
use Encode;
|
|
|
|
sub module_constraints { [[4, 127], [8, 8], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
#
|
|
# Helper functions:
|
|
#
|
|
|
|
sub exclusive_or
|
|
{
|
|
my $in1 = shift;
|
|
my $in2 = shift;
|
|
|
|
# MIN () function (should always be 16 for us):
|
|
# my $len = (length ($in1) <= length ($in2)) ? length ($in2) : length ($in1);
|
|
|
|
# padding if input not multiple of block size:
|
|
# $in1 .= "\x00" x ($AES256_IGE_BLOCK_SIZE - $len);
|
|
# $in2 .= "\x00" x ($AES256_IGE_BLOCK_SIZE - $len);
|
|
|
|
my $out = "";
|
|
|
|
for (my $i = 0; $i < length $in1; $i++) # $i < $len
|
|
{
|
|
$out .= chr (ord (substr ($in1, $i, 1)) ^ ord (substr ($in2, $i, 1)));
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iter = shift // 10000;
|
|
my $mk = shift // random_hex_string (128);
|
|
my $hmac = shift // random_hex_string (64);
|
|
my $blob = shift // random_hex_string (1384);
|
|
my $magicv = shift // "785435725a573571565662727670754100";
|
|
|
|
my $salt_bin = pack ("H*", $salt);
|
|
my $mk_bin = pack ("H*", $mk);
|
|
my $hmac_bin = pack ("H*", $hmac);
|
|
my $blob_bin = pack ("H*", $blob);
|
|
my $magicv_bin = pack ("H*", $magicv);
|
|
|
|
## convert_userpin_to_secretpin()
|
|
## this looks strange. what if the user password is outside 0x20 - 0x7f?
|
|
## from some testing, it seems MS prevents the user to use any non-ascii charcters
|
|
|
|
my $stage1_hexpin = uc (encode ("UTF-16LE", unpack ("H*", $word)));
|
|
|
|
my $pbkdf2 = Crypt::PBKDF2->new
|
|
(
|
|
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
|
|
iterations => $iter,
|
|
output_len => 32
|
|
);
|
|
|
|
my $stage2_pbkdf2 = $pbkdf2->PBKDF2 ($salt_bin, $stage1_hexpin);
|
|
|
|
my $stage3_hexconvert = uc (encode ("UTF-16LE", unpack ("H*", $stage2_pbkdf2)));
|
|
|
|
my $stage4_sha512 = sha512 ($stage3_hexconvert);
|
|
|
|
## is_signature_matching()
|
|
|
|
my $masterkey = sha1 ($mk_bin) . "\x00" x 108;
|
|
|
|
my $sub_digest_seed = exclusive_or ($masterkey, "\x36" x 128);
|
|
my $main_digest_seed = exclusive_or ($masterkey, "\x5c" x 128);
|
|
|
|
my $sub_digest = sha512 ($sub_digest_seed . $hmac_bin . $magicv_bin . $stage4_sha512 . $blob_bin);
|
|
|
|
my $main_digest = sha512 ($main_digest_seed . $sub_digest);
|
|
|
|
my $hash = sprintf ("\$WINHELLO\$*SHA512*%i*%s*%s*%s*%s*%s*%s", $iter, unpack ("H*", $salt_bin), unpack ("H*", $main_digest), unpack ("H*", $mk_bin), unpack ("H*", $hmac_bin), unpack ("H*", $blob_bin), unpack ("H*", $magicv_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, $idx + 1);
|
|
|
|
my ($signature, $algo, $iter, $pin_salt, $sign, $mk, $hmac, $verify_blob, $magicv) = split '\*', $hash;
|
|
|
|
return unless defined $signature;
|
|
return unless defined $algo;
|
|
return unless defined $iter;
|
|
return unless defined $pin_salt;
|
|
return unless defined $sign;
|
|
return unless defined $mk;
|
|
return unless defined $hmac;
|
|
return unless defined $verify_blob;
|
|
return unless defined $magicv;
|
|
|
|
return unless ($signature eq '$WINHELLO$');
|
|
return unless ($algo eq 'SHA512');
|
|
return unless (length $pin_salt eq 8);
|
|
return unless (length $sign eq 128);
|
|
return unless (length $mk eq 128);
|
|
return unless (length $hmac eq 64);
|
|
return unless (length $verify_blob eq 1384);
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word, $pin_salt, $iter, $mk, $hmac, $verify_blob, $magicv);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|