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