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hashcat/tools/test_modules/m12100.pm

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#!/usr/bin/env perl
##
## Author......: See docs/credits.txt
## License.....: MIT
##
use strict;
use warnings;
use MIME::Base64 qw (encode_base64 decode_base64);
use Crypt::PBKDF2;
2019-02-19 09:34:58 +01:00
sub module_constraints { [[0, 255], [1, 15], [-1, -1], [-1, -1], [-1, -1]] }
sub module_generate_hash
{
my $word = shift;
my $salt = shift;
my $iterations = shift // 1000;
my $out_len = shift // 16;
my $pbkdf2 = Crypt::PBKDF2->new
(
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 512),
iterations => $iterations,
output_len => $out_len
);
my $digest = encode_base64 ($pbkdf2->PBKDF2 ($salt, $word), "");
my $base64_salt = encode_base64 ($salt, "");
my $hash = sprintf ("sha512:%i:%s:%s", $iterations, $base64_salt, $digest);
return $hash;
}
sub module_verify_hash
{
my $line = shift;
my ($digest, $word) = split (/:([^:]+)$/, $line);
return unless defined $digest;
return unless defined $word;
my ($signature, $iterations, $salt_encoded, $hash_encoded) = split (':', $digest);
return unless ($signature eq 'sha512');
return unless defined $iterations;
return unless defined $salt_encoded;
return unless defined $hash_encoded;
my $hash = decode_base64 ($hash_encoded);
my $salt = decode_base64 ($salt_encoded);
my $out_len = length ($hash);
my $word_packed = pack_if_HEX_notation ($word);
my $new_hash = module_generate_hash ($word_packed, $salt, $iterations, $out_len);
return ($new_hash, $word);
}
1;