mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-05 14:59:37 +00:00
71 lines
1.3 KiB
Perl
71 lines
1.3 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::PBKDF2;
|
|
|
|
sub module_constraints { [[0, 256], [-1, -1], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iter = shift // 1024;
|
|
|
|
if (length $salt == 0)
|
|
{
|
|
$salt = random_hex_string (128, 128);
|
|
}
|
|
|
|
my $pbkdf2 = Crypt::PBKDF2->new (
|
|
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 512),
|
|
iterations => $iter
|
|
);
|
|
|
|
my $hash_buf = unpack ("H*", $pbkdf2->PBKDF2 (pack ("H*", $salt), $word));
|
|
|
|
my $hash = sprintf ("grub.pbkdf2.sha512.%i.%s.%0128s", $iter, $salt, $hash_buf);
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my $index1 = index ($line, ":");
|
|
|
|
return if $index1 < 1;
|
|
|
|
my $hash_in = substr ($line, 0, $index1);
|
|
|
|
my $word = substr ($line, $index1 + 1);
|
|
|
|
my $index2 = index ($hash_in, ".", 19);
|
|
|
|
return if $index2 < 1;
|
|
|
|
my $index3 = index ($hash_in, ".", $index2 + 1);
|
|
|
|
my $salt = substr ($hash_in, $index2 + 1, $index3 - $index2 - 1);
|
|
|
|
my $iter = substr ($hash_in, 19, $index2 - 19);
|
|
|
|
return unless defined $salt;
|
|
return unless defined $word;
|
|
|
|
$word = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word, $salt);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|