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
> s
Um, rethorical question, but from my very limited understanding of GPS,
all the satelites do is send a series of time codes. So if you wanted to
you could build several transmitters that sent out stuff on the same
frequenies. Since you need to be outside to be able to use GPS, or at
least "see s
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.
The idea was that the user's machine would pick up the
aggregate analog GPS signal avai
At 11:35 AM 11/22/01 -0800, John Young wrote:
Do caves
>serve as acoustic resonators to emit recorded whispers up
>ventilating shafts?
Their waveguide, not resonance, properties might be of interest,
if their CO2 emissions -whether speaking or silent- were not so telling.
Unless Osama's got a *b
On Thu, 22 Nov 2001, Eugene Leitl wrote:
> Given that a GPS receiver gets ephemeris data, almanach data and
> pseudorandom code from each currently visible sat it has probably to do
> with the latter. Consider S/A (which may or may not be switched off now, I
> haven't checked): if you've got a se
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 st
On Thu, 22 Nov 2001, Roy M. Silvernail wrote:
> Using a GPS coordinate set as keying material? Hope it's just
Given that a GPS receiver gets ephemeris data, almanach data and
pseudorandom code from each currently visible sat it has probably to do
with the latter. Consider S/A (which may or may
At 11:06 AM -0800 11/22/01, John Young wrote:
>Time Magazine, November 26, 2001:
This is a fascinating idea, but problematic. The simplest approach
is easy to spoof. Let's say that you encrypt the data with the GPS coordinates
X. The software takes GPS coordinates from a GPS receiver and tries
to
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 satellite
Google shows one "geo-encryption" patented by CoinCard,
which may or may not be a component of Denning's geo-crypto.
Because CoinCard is a Canadian company, its geo-encryption
may have nothing to do with Denning's.
CoinCard uses a system composed of a swipe card and passive
card reader to decryp
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