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hashcat/tools/test_modules/m32040.pm

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#!/usr/bin/env perl
##
## Author......: See docs/credits.txt
## License.....: MIT
##
use strict;
use warnings;
use Digest::SHA;
use MIME::Base64 qw (decode_base64 encode_base64);
sub module_constraints { [[0, 256], [24, 24], [-1, -1], [-1, -1], [-1, -1]] }
sub module_generate_hash
{
my $word = shift;
my $salt = shift;
my $salt_b64 = encode_base64 ($salt, "");
my $sha512 = Digest::SHA->new(512);
$sha512->add ($salt_b64 . $word);
for (my $i = 1; $i < 100000; $i++)
{
my $tmp = $sha512->digest;
$sha512->reset;
$sha512->add ($tmp);
}
my $digest = $sha512->digest;
my $hash = sprintf ('$sspr$4$100000$%s$%s', $salt_b64, unpack ("H*", $digest));
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, 15) eq '$sspr$4$100000$';
my (undef, $signature, $version, $iter, $salt) = split '\$', $hash;
return unless defined $signature;
return unless defined $version;
return unless defined $iter;
return unless defined $salt;
return unless $version == 4;
return unless $iter == 100000;
return unless length $salt == 32;
my $salt_b64 = decode_base64 ($salt);
return unless length $salt_b64 == 24;
my $word_packed = pack_if_HEX_notation ($word);
my $new_hash = module_generate_hash ($word_packed, $salt_b64);
return ($new_hash, $word);
}
1;