z crypt

This module show a way to simple data encryption. Characters are mapped to a key via replacement.

Though simple, this is a good method for encrypting data if the data is compressed before or after the encryption process.

The functions provided by this recipe are meant to be used in a larger encryption scheme. Definitions are specially constructed strings that come from the defintion function (which can produce "named" definitions).

Keys can be extracted from the definitions by using the key function. The select argument should either be True or False. Data encrypted with "True" of a definition can be decrypted with the "False" of a definition and visa-versa.