package Crypt::TC18;
use strict;
require Exporter;
our @EXPORT_OK = qw(keysize blocksize new encrypt decrypt rounds);
our $VERSION = '1.0.0';
our @ISA = qw(Exporter);
require XSLoader;
XSLoader::load('Crypt::TC18', $VERSION);
# Preloaded methods go here.
sub keysize { 8 }
sub blocksize { 16 }
sub rounds { 16 } # may be useful in some applications
1;
__END__
=head1 NAME
Crypt::TC18 - Crypt::CBC compliant block cipher
=head1 ABSTRACT
B<TC18> is 128-bit block cipher that accepts a 64-bit key. TC18 is also
known as B<XSM>.
=head1 SYNOPSIS
use Crypt::TC18;
$cipher = new Crypt::TC18 $key;
$ciphertext = $cipher->encrypt($plaintext);
$plaintext = $cipher->decrypt($ciphertext);
$bs = $cipher->blocksize;
$ks = $cipher->keysize;
$r = $cipher->rounds;
=head1 DESCRIPTION
TC18 is 128-bit block cipher that accepts a 64-bit key. It was
designed by Tom St. Denis.
This module supports the Crypt::CBC interface, with the following
functions.
=head2 Functions
=over
=item B<blocksize>
Returns the size (in bytes) of the block (16, in this case)
=item B<keysize>
Returns the size (in bytes) of the key (8, in this case)
=item B<rounds>
Returns the number of rounds used by TC18 (16, in this case)
=item B<encrypt($data)>
Encrypts 16 bytes of $data and returns the corresponding ciphertext
=item B<decrypt($data)>
Decrypts 16 bytes of $data and returns the corresponding plaintext
=back
=head1 EXAMPLES
See the "examples" directory for some examples
=head1 SEE ALSO
B<Crypt::Anubis>, B<Crypt::Camellia>, B<Crypt::Khazad>,
B<Crypt::Loki97>, B<Crypt::Misty1>, B<Crypt::Noekeon>,
B<Crypt::Rainbow>, B<Crypt::Shark>, B<Crypt::Skipjack>, and
B<Crypt::Square>
=head1 COPYRIGHT AND LICENSE
Copyright 2004 by Julius C. Duque. Please read B<contact.html> that
comes with this distribution for details on how to contact the author.
This library is free software; you can redistribute it and/or modify
it under the same terms as the GNU General Public License.
=cut