Denning's Geo-crypto

[Roy M. Silvernail]

On 22 Nov 2001, at 11:06, John Young 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. 

Using a GPS coordinate set as keying material?  Hope it's just 
additional keying material.  Knowing the intended destination of 
something like a movie in transit to a theater seems pretty easy, 
and the set of GPS coordinates encompassing your average 
multiplex would seem to be pretty small compared to the usual 
keyspaces discussed here.
--
           Roy M. Silvernail     [ ]     roy at scytale.com
DNRC Minister Plenipotentiary of All Things Confusing, Software Division
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