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| 55 | <H1><A NAME="SECTION0017000000000000000000"></A> |
| 56 | <A NAME="crypto"></A><a id='l2h-4801' xml:id='l2h-4801'></a> |
| 57 | <BR> |
| 58 | 15. Cryptographic Services |
| 59 | </H1> |
| 60 | |
| 61 | <P> |
| 62 | The modules described in this chapter implement various algorithms of |
| 63 | a cryptographic nature. They are available at the discretion of the |
| 64 | installation. Here's an overview: |
| 65 | |
| 66 | <P> |
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| 69 | <td><b><tt class='module'><a href='module-hmac.html'>hmac</a></tt></b></td> |
| 70 | <td> </td> |
| 71 | <td class='synopsis'>Keyed-Hashing for Message Authentication (HMAC) |
| 72 | implementation for Python.</td></tr> |
| 73 | <tr><td><b><tt class='module'><a href='module-md5.html'>md5</a></tt></b></td> |
| 74 | <td> </td> |
| 75 | <td class='synopsis'>RSA's MD5 message digest algorithm.</td></tr> |
| 76 | <tr class='oddrow'> |
| 77 | <td><b><tt class='module'><a href='module-sha.html'>sha</a></tt></b></td> |
| 78 | <td> </td> |
| 79 | <td class='synopsis'>NIST's secure hash algorithm, SHA.</td></tr> |
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| 82 | <BR> |
| 83 | <P> |
| 84 | Hardcore cypherpunks will probably find the cryptographic modules |
| 85 | written by A.M. Kuchling of further interest; the package adds |
| 86 | built-in modules for DES and IDEA encryption, provides a Python module |
| 87 | for reading and decrypting PGP files, and then some. These modules |
| 88 | are not distributed with Python but available separately. See the URL |
| 89 | <a class="url" href="http://www.amk.ca/python/code/crypto.html">http://www.amk.ca/python/code/crypto.html</a> |
| 90 | for more information. |
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