[7043] in cryptography@c2.net mail archive
RE: GPS integrity
daemon@ATHENA.MIT.EDU (Vin McLellan)
Tue May 9 15:46:28 2000
From: "Vin McLellan" <vin@shore.net>
To: <amir.herzberg@il.ibm.com>,
"Eugene Leitl" <eugene.leitl@lrz.uni-muenchen.de>
Cc: "Ian BROWN" <I.Brown@cs.ucl.ac.uk>, <cryptography@c2.net>,
<boaz.barak@il.ibm.com>
Date: Tue, 9 May 2000 13:24:33 -0400
Message-ID: <NEBBKAMGCLLCADEOHHOEEEDBCCAA.vin@shore.net>
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For more info on "Cyberlocator" (not SmartLocator), try:
http://www.cyberlocator.com/technical.html
Cyberlocator, a corporation, has two US patents on the use of GPS for
location-based authentication. One patent (US 5,757,916) describes the use
of satellites in location-based authentication and the other (US 4,797,677)
covers their "unique processing" of GPS signals.
4,797,677:
http://164.195.100.11/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&
u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1='4797677'.WKU.&OS=PN/4797677&RS=PN/4
797677
5,757,916;
http://164.195.100.11/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&
u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1='5,757,916'.WKU.&OS=PN/5,757,916&RS=
PN/5,757,916
Suerte,
_Vin
Amir Herzberg <amir.herzberg@il.ibm.com> wrote:
<snip>
>SmartLocator is/was a product/prototype of International Series Research
>Inc., around 1996; I haven't found any more info about it (further to
>Denning's note) and suspect it doesn't exist anymore. In any case, based on
>what I've read in Denning's article, I think SmartLocator does not claim to
>secure GPS integrity. SmartLocator claims to provide a `location signature`
>using GPS, that is, a way to prove that the sender of a message has a GPS
>receiver in a particular position in space and time. Actually, this could
>indeed be quite useful, if this works, so one wonders how it worked and why
>one (me) never heard of it so far. Maybe someone on the list knows better?
>Or maybe we should look for a patent. Frankly: my expectations are low, I
>will be surprised if this was really done securely.
>Best Regards,
>Amir Herzberg
>IBM Research Lab in Haifa (Tel Aviv Office)
>http://www.hrl.il.ibm.com
Eugene Leitl <eugene.leitl@lrz.uni-muenchen.de> on 05/09/2000 12:10:27 AM
Please respond to Eugene Leitl <eugene.leitl@lrz.uni-muenchen.de>
To: Ian BROWN <I.Brown@cs.ucl.ac.uk>
cc: amir.herzberg%ibmil.RSCS@STOVM1.EMEA.IBM.COM, cryptography@c2.net
(bcc: Amir Herzberg/Haifa/IBM)
Subject: Re: GPS integrity
I presume the paper in question is
http://www.cs.georgetown.edu/~denning/infosec/Grounding.txt
Ian BROWN writes:
> Dorothy Denning wrote an interesting paper on authenticating location
using
> GPS signals... I think it's reachable from her home page as well as the
> following citation:
>
> D. E. Denning and P. F. MacDoran, "Location-Based Authentication:
Grounding
> Cyberspace for Better Security," Computer Fraud and Security, Feb. 1996
>
> Ian :)
>
