I wrote about this in Wired some time ago. Here's the link. It's also the subject of the last part--a sort of epilog--to my book Crypto. http://www.wired.com/

I wrote about this in Wired some time ago. Here's the link. It's also the subject of the last part--a sort of epilog--to my book Crypto. http://www.wired.com/wired/archive/7.04/crypto_pr.html http://www.wired.com/wired/archive/7.04/crypto_pr.html I was at Cocks' talk, which was held, appropriately enough, at Bletchley Park, where Alan Turing and others cracked Nazi Enigma codes. It is really worth a visit if you are in London and have a day to travel. Whit Diffie also shared with me some fascinating stories about his strange relationship with James Ellis, his counterpart in the classifed shadow world.