Hi, I was looking at the thread on the 'null' cipher and was wondering if you have done anything one it, if you need any help (or just encouragement ;)). I'm a radio experimenter (radio ham) and currently I'm using ssh illegally over the air, as I'm not legally allowed to encrypt sessions over the Radio Link. Being able to have strong authentication with no encryption would make my (any many others) operations 'legal'. Currently it doesn't matter that I'm legal or not really as there's no one else in the area on the frequency. Regards de John EI7IG -- John Ronan <jronan at tssg.org>, +353-51-302938 Telecommunications Software & Systems Group, http://www.tssg.org