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========= M2Crypto ========= :Maintainer: Heikki Toivonen :Web-Site: http://chandlerproject.org/Projects/MeTooCrypto M2Crypto = Python + OpenSSL + SWIG ------------------------------------ M2Crypto is a crypto and SSL toolkit for Python. M2 stands for "me, too!" M2Crypto comes with the following: - **RSA**, **DSA**, **DH**, **HMACs**, **message digests**, **symmetric ciphers** including **AES**, - **SSL** functionality to implement **clients and servers**. - **Example SSL client and server programs**, which are variously **threading**, **forking** or based on **non-blocking socket IO**. - **HTTPS** extensions to Python's **httplib, urllib and xmlrpclib**. - Unforgeable HMAC'ing **AuthCookies** for **web session management**. - **FTP/TLS** client and server. - **S/MIME v2**. - **ZServerSSL**: A **HTTPS server for Zope**. - **ZSmime**: An S/MIME messenger for **Zope**. - And much more. M2Crypto is released under a very liberal BSD-style licence. See LICENCE for details. To install, see the file INSTALL. Look at the tests and demos for example use. Recommended reading before deploying in production is "Network Security with OpenSSL" by John Viega, Matt Messier and Pravir Chandra, ISBN 059600270X. Note these caveats: - Possible memory leaks, because some objects need to be freed on the Python side and other objects on the C side, and these may change between OpenSSL versions. (Multiple free's lead to crashes very quickly, so these should be relatively rare.) - No memory locking/clearing for keys, passphrases, etc. because AFAIK Python does not provide the features needed. On the C (OpenSSL) side things are cleared when the Python objects are deleted. Have fun! Your feedback is welcome.