Russell, Thanks for the info and encouragement. My job entails accrediting 5 VAX systems, two of which are running Ultrix, a Share system, and a Banyan LAN. I also am in charge of anti-virus software for the LAN. I am working on digital signatures, since we have a problem with forgery around here. Also I am working implementing PGP on a large around the compound. I want to get in depth with cryptology, and learn as much as I can as fast as I can. Please, if you have questions, ask them to me if I can help, as I know I will bother the list with mine. I learned about the list from the bugtraq discussion list. Thanks ! Sgt Darren Harlow - Computer Security Internet: harlow%isb%mctssa@nwsfallbrook3.nwac.sea06.navy.mil or another less reliable: harlow@mqg1.usmc.mil Phone: (619) 725-2970 Fax: (619) 725-9512 "The views expressed are my own, and always will be..."