http://www.ibm.com/developerworks/systems/library/es-nweb/sidefile1.html http://www.ibm.com/developerworks/systems/library/es-nweb/si... Direct link to the (200

http://www.ibm.com/developerworks/systems/library/es-nweb/sidefile1.html http://www.ibm.com/developerworks/systems/library/es-nweb/si... Direct link to the (200 lines of) source code. I can't speak to the security, but it is a nice little read.