mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-23 07:08:19 +00:00
78 lines
1.6 KiB
Perl
78 lines
1.6 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::CBC;
|
|
use Crypt::PBKDF2;
|
|
|
|
# we need to make sure the salts are unique, otherwise this module will fail
|
|
sub module_constraints { [[0, 256], [10, 15], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iter = shift // 100100;
|
|
my $iv = shift // random_bytes (16);
|
|
|
|
my $hasher = Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256);
|
|
|
|
my $pbkdf2 = Crypt::PBKDF2->new (
|
|
hasher => $hasher,
|
|
iterations => $iter,
|
|
output_len => 32
|
|
);
|
|
|
|
my $key = $pbkdf2->PBKDF2 ($salt, $word);
|
|
|
|
my $cipher = Crypt::CBC->new ({
|
|
key => $key,
|
|
cipher => "Crypt::Rijndael",
|
|
iv => $iv,
|
|
literal_key => 1,
|
|
header => "none",
|
|
keysize => 32
|
|
});
|
|
|
|
my $encrypt = $cipher->encrypt (substr ($salt, 0, 16));
|
|
|
|
my $hash_buf = substr (unpack ("H*", $encrypt), 0, 32);
|
|
|
|
my $iv_buf = unpack("H*", $iv);
|
|
|
|
my $hash = sprintf ("%s:%i:%s:%s", $hash_buf, $iter, $salt, $iv_buf);
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my ($hash, $iter, $salt, $iv, $word) = split ":", $line;
|
|
|
|
return unless defined $hash;
|
|
return unless defined $iter;
|
|
return unless defined $salt;
|
|
return unless defined $word;
|
|
return unless defined $iv;
|
|
|
|
return unless ($iv =~ m/^[0-9a-fA-F]{32}$/);
|
|
|
|
$iv = pack ("H*", $iv);
|
|
|
|
$word = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word, $salt, $iter, $iv);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|