mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-30 03:48:17 +00:00
98 lines
2.0 KiB
Perl
98 lines
2.0 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::OpenSSH::ChachaPoly;
|
|
|
|
sub module_constraints { [[-1, -1], [-1, -1], [32, 32], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $param = shift;
|
|
my $param2 = shift;
|
|
my $param3 = shift;
|
|
|
|
my $counter;
|
|
my $offset;
|
|
my $iv;
|
|
|
|
if (defined $param)
|
|
{
|
|
$counter = $param;
|
|
$offset = $param2;
|
|
$iv = $param3;
|
|
}
|
|
else
|
|
{
|
|
$counter = "0400000000000003";
|
|
$offset = int (rand (63));
|
|
$iv = "0200000000000001";
|
|
}
|
|
|
|
my $plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz0a2b4c6d8e";
|
|
my $eight_byte_iv = pack ("H*", $iv);
|
|
my $eight_byte_counter = pack ("H*", $counter);
|
|
my $pad_len = 32 - length ($word);
|
|
my $key = $word . "\0" x $pad_len;
|
|
|
|
my $cipher = Crypt::OpenSSH::ChachaPoly->new ($key);
|
|
|
|
$cipher->ivsetup ($eight_byte_iv, $eight_byte_counter);
|
|
|
|
my $enc = $cipher->encrypt ($plaintext);
|
|
|
|
my $enc_offset = substr ($enc, $offset, 8);
|
|
|
|
my $hash_buf = $enc_offset;
|
|
|
|
my $hash = sprintf ("\$chacha20\$\*%s\*%d\*%s\*%s\*%s", $counter, $offset, $iv, unpack ("H*", substr ($plaintext, $offset, 8)), unpack ("H*", $enc_offset));
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my $index1 = index ($line, ':');
|
|
|
|
return if ($index1 < 0);
|
|
|
|
my $hash_in = substr ($line, 0, $index1);
|
|
|
|
my $word = substr ($line, $index1 + 1);
|
|
|
|
return if (length ($hash_in) < 11);
|
|
|
|
return unless (substr ($hash_in, 0, 11) eq "\$chacha20\$\*");
|
|
|
|
my @data = split ('\*', $hash_in);
|
|
|
|
return unless (scalar (@data) == 6);
|
|
|
|
my $param = $data[1]; # counter
|
|
my $param2 = $data[2]; # offset
|
|
my $param3 = $data[3]; # iv
|
|
|
|
return unless defined $param;
|
|
return unless defined $param2;
|
|
return unless defined $param3;
|
|
return unless defined $word;
|
|
|
|
$word = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word, undef, $param, $param2, $param3);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|