don@allegra.UUCP (D. Mitchell) (02/15/84)
I have also head that Davida's cryptography system was temporarily blocked. It was based on some sort of random number generator which fed out very small projections of its state. Does anyone know more about it?
avi@pegasus.UUCP (02/15/84)
allegra!don asked: D I have also head that Davida's cryptography system was temporarily O blocked. It was based on some sort of random number generator which N fed out very small projections of its state. Does anyone know more about it? Which cryptography system are you talking about? When I was at the University of Wisconsin - Milwaukee, I heard part of the story from George Davida and from one of his graduate students -- if we are talking about something that goes back a few years. The way I remember it, he was stopped from publishing his stuff or setting up a commercial venture that used it. Some branch of the government decided that it would violate national security. I remember that there were some court appeals. I never found out what the result was. The story even made some of the local papers. I don't remember any details about the system that was suppressed. I do remember that George wanted some of us to write an arithmetic package that would handle integers containing an arbitrary number of digits. The amusing part was that he wanted this done in Pascal. I remember the problems I had writing the DES algorithm without useful bit-manipulation primitives. Using sets to simulate bits does not always generate a rapidly-running program. -- -=> Avi E. Gross @ AT&T Information Systems Laboratories (201) 576-6241 suggested paths: [ihnp4, allegra, cbosg, hogpc, ...]!pegasus!avi
reza@ihuxb.UUCP (H. Reza Taheri) (02/15/84)
Davida finally won his battle with the NSA. But interestingly, when I took an encryption course from him, he never mentioned anything about his patent or his problems with the government! Did they scare him? H. Reza Taheri ...!(most major machines on the net)!ihnp4!ihuxb!reza (312)-979-1040