.. _crypto:

**********************

Cryptographic Services

**********************

.. index:: single: cryptography

The modules described in this chapter implement various algorithms of a

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

Here's an overview:

.. toctree::

   hashlib.rst

   hmac.rst

   md5.rst

   sha.rst

.. index::

   pair: AES; algorithm

   single: cryptography

   single: Kuchling, Andrew

Hardcore cypherpunks will probably find the cryptographic modules written by

A.M. Kuchling of further interest; the package contains modules for various

encryption algorithms, most notably AES.  These modules are not distributed with

Python but available separately.  See the URL

http://www.amk.ca/python/code/crypto.html  for more information.