CAST 128 Encryption and Decryption: A pure PHP CAST 128 encryption implementation

This class implements the CAST 128 encryption and description algorithms using pure PHP code.

It encrypt or decrypt data using a key that should be specified as parameter.

Before using this class, make sure it will not violate any laws regarding the use of strong encryption of data in your country. It is known to be fine for use in the United States and Canada, but you should verify the local laws if you intend to use it in other countries.