\chapter{CRYPTOGRAPHIC EXTENSIONS}

The modules described in this chapter implement various algorithms of

a cryptographic nature. They are available at the discretion of the

installation.

\index{cryptography}

Hardcore cypherpunks will probably find the Python Cryptography Kit of

further interest; the package adds built-in modules for DES and IDEA

encryption, and provides a Python module for reading and decrypting

PGP files. The Python Cryptography Kit is not distributed with Python

but available separately. See the URL

\file{http://www.cs.mcgill.ca/\%7Efnord/crypt.html} for more information.

\index{PGP}

\indexii{DES}{cipher}

\indexii{IDEA}{cipher}

\index{Python Cryptography Kit}