1 2.. _crypto: 3 4********************** 5Cryptographic Services 6********************** 7 8.. index:: single: cryptography 9 10The modules described in this chapter implement various algorithms of a 11cryptographic nature. They are available at the discretion of the installation. 12Here's an overview: 13 14 15.. toctree:: 16 17 hashlib.rst 18 hmac.rst 19 md5.rst 20 sha.rst 21