Yurttas/PL/SL/python/docs/core-python-programming/doc/16/lib/crypto.html
15. Cryptographic Services
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:
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Hardcore cypherpunks will probably find the cryptographic modules written by Andrew Kuchling of further interest; the package adds built-in modules for DES and IDEA encryption, provides a Python module for reading and decrypting PGP files, and then some. These modules are not distributed with Python but available separately. See the URL http://starship.python.net/crew/amk/python/crypto.html or send email to akuchlin@acm.org for more information.