Crypt::Khazad - Crypt::CBC-compliant block cipher
Khazad is a 128-bit key, 64-bit block cipher, designed by Vincent Rijmen and Paulo S. L. M. Barreto.
use Crypt::Khazad; $cipher = new Crypt::Khazad $key; $ciphertext = $cipher->encrypt($plaintext); $plaintext = $cipher->decrypt($ciphertext);
Khazad is a 128-bit key, 64-bit block cipher. Designed by Vincent Rijmen and Paulo S. L. M. Barreto, Khazad is a NESSIE finalist for legacy-level block ciphers. Khazad has many similarities with Rijndael, and has an extremely high rate of diffusion.
This module supports the Crypt::CBC interface, with the following functions.
Returns the size (in bytes) of the block (8, in this case).
Returns the size (in bytes) of the key (16, in this case).
Encrypts 8 bytes of $data and returns the corresponding ciphertext.
Decrypts 8 bytes of $data and returns the corresponding plaintext.
#!/usr/local/bin/perl use diagnostics; use strict; use warnings; use Crypt::Khazad; # key must be 16 bytes long my $key = "0123456789abcdef"; my $cipher = new Crypt::Khazad $key; print "blocksize = ", $cipher->blocksize, " bytes \n"; print "keysize = ", $cipher->keysize, " bytes \n"; # block must be 8 bytes long my $plaintext1 = "Testing1"; my $ciphertext = $cipher->encrypt($plaintext1); my $plaintext2 = $cipher->decrypt($ciphertext); print "Decryption OK\n" if ($plaintext1 eq $plaintext2);
#!/usr/local/bin/perl use diagnostics; use strict; use warnings; use Crypt::CBC; # CBC automatically loads Khazad for us # when using Crypt::CBC, key may be of ANY length my $key = "0123456789abcdef"; # IV must be exactly 8 bytes long my $IV = pack "H16", 0; my $cipher = Crypt::CBC->new({'key' => $key, 'cipher' => 'Khazad', 'iv' => $IV, 'regenerate_key' => 1, 'padding' => 'standard', 'prepend_iv' => 0 }); # when using Crypt::CBC, plaintext may be of ANY length my $plaintext1 = "This is a test"; my $ciphertext = $cipher->encrypt($plaintext1); my $plaintext2 = $cipher->decrypt($ciphertext); print "Decryption OK\n" if ($plaintext1 eq $plaintext2);
See Crypt::CBC for more examples using CBC mode. See also the "examples" and "t" directories for some more examples.
Crypt::Anubis and Crypt::Misty1
Copyright 2003 by Julius C. Duque <jcduque (AT) lycos (DOT) com>
This library is free software; you can redistribute it and/or modify it under the same terms as the GNU General Public License.
To install Crypt::Khazad, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Crypt::Khazad
CPAN shell
perl -MCPAN -e shell install Crypt::Khazad
For more information on module installation, please visit the detailed CPAN module installation guide.