Denning's Geo-crypto

[Declan McCullagh]

Some details from a 1996 paper:
http://www.cs.georgetown.edu/~denning/infosec/Grounding.txt

-Declan

On Mon, Nov 26, 2001 at 11:35:51AM -0500, Trei, Peter wrote:
> Curious. 4-5 years ago Denning and another associate (I 
> forget who, it's in the archives :-) tried to market an authentication
> scheme which purported to authenticate the location of a remote
> user using GPS.