On Tue, 28 Jan 2003, Tyler Durden wrote: > Yo! Anyone out there in codeville know if the following is possible? > > I'd like to be able digitally "shake hands" using a Palm Pilot. Is this > possible?
Yes. > And now let's say there's some guy at a party claiming to be that very same > Tyler Durden, but you're not so sure (this real-life Tyler Durden is WAY too > much of an obvious chick-magnet to be the same guy that posts on the > Internet). BUT, you happen to have your Palm Pilot(TM), and so does he. So > you both both engage the little hand-shaking app on your PP (using Tyler > Durden's public key) and there's verification. Yep. Same dude. (You then > procede to prostrate yourself before this obvious godlet, stating "I'm not > worthy, Sire".) Or punch him in the nose :-) > Is this possible within the memory constraints of a Palm device? What about > with a booster pack of memory? If not, is some sort of "Public Key Masking" > possible so that a 'less secure' handshake is possible using a subset of the > public key? It's there. And you have lots of choices of algorithms too. Maybe too many choices... > And for extra credit, when might the chipsets be available for incorporating > this functionality into, say, a wristwatch so that the protocol runs > automatically (giving you a beep, for instance, only if there's a mismatch)? > (This I'm sure the feds must already have.) It's there. Check out "smart cards". One chip does the job quite nicely. Way too many choices there too. Do a web search for "secure cryptographic hardware". Have lots of time to read :-) Patience, persistence, truth, Dr. mike
