At 11:06 AM 11/22/2001 -0800, you wrote: >Time Magazine, November 26, 2001: > >Denning's pioneering a new field she calls geo-encryption. >Working with industry, Denning has developed a way to keep >information undecipherable until it reaches its location, as >determined by GPS satellites. Move studios, for example, >have been afraid to release films digitally for the same reasons >record companies hate Napster: once loose on the Internet, >there's little to stop someone from posting the latest blockbuster >DVD on the Web for all to see and download. With Denning's >system, however, only subscribers in specified locations -- >such as movie theaters -- would be able to unscramble the >data. The technology works as well for national security >as it does for Harry Potter. Coded messages that the State >Department sends to its embassies, for example, could only >be deciphered in the embassy buildings themselves, greatly >reducing the risk of interception. > >For now, Denning says, terrorists "may want to bring down >the power grid or the finance system, but it's still easier to >blow up a building." If she's right, it's due in large part to her.
I believe several patents have been filed for something along this line (e.g. tamper resistant GPS-smart cards). Mostly to enable casino to satisfy state regulators that their clients are in permitted geographic locales. steve
