Hello, yesterday I attended a presentation about a software teaching people crypto. It's free, so I tested it a bit, and it's seemingly nice and fit to help students understand what good crypto is and what's not. It was invented by a guy working at Deutsche Bank who was horrified about the companies programmers coding new security schemes into the banks software packages on the fly without knowing a bit about crypto and underlying mathematics. The software since then has been shifted to a group at University of Darmstadt which is developing it right now. The software is available for W32 only (*sigh*) but in English as well as German: http://www.cryptool.com At the presentation they said that next steps in development will be new demonstrators ("how does TLS work") on the content side and on the organisational side the port to Unix. With that they hope they can get it Open Sourced. The software is intended for educational purposes, so right now they limited the key space for most algorithms to 20 bit. Well, until the source is released I guess.... ;-) Regards, Birger