NAME

Crypt::NULL - NULL Encryption Algorithm

SYNOPSIS

use Crypt::NULL;

$cipher = Crypt::NULL->new($key);

$ciphertext = $cipher->encrypt($plaintext);

$plaintext = $cipher->decrypt($ciphertext);

The NULL Encryption Algorithm is a symmetric block cipher described in RFC 2410 by Rob Glenn and Stephen Kent.

This module implements NULL encryption. It supports the Crypt::CBC interface, with the following functions.

blocksize: Returns the size (in bytes) of the block (16, in this case).
keysize: Returns the size (in bytes) of the key (16, in this case).
new($key): This creates a new Crypt::NULL object with the specified key.
encrypt($data): Encrypts blocksize() bytes of $data and returns the corresponding ciphertext.
decrypt($data): Decrypts blocksize() bytes of $data and returns the corresponding plaintext.

Abhijit Menon-Sen <ams@wiw.org>

This software is distributed under the terms of the Artistic License <URL:http://ams.wiw.org/code/artistic.txt>.