On 04/02/2011 04:10 AM, Jeffrey Walton wrote: > Hi Guys, > > Given a mobile device with GPS location data available, is there any > benefit to using the location data as an entropy source? > > I'm wondering how useful GPS coordinates are if an adversary can > determine location by triangulating a carrier's cell tower data.
Over some duration (assuming said GPS is on the move) or just at some single fixed point in time? At most, I would think you'd only be able to collect a few bits. And I would think an adversary who has observed your travel patterns might be able to exploit just about anything if your movements are more or less predictable. -kevin -- Kevin W. Wall "The most likely way for the world to be destroyed, most experts agree, is by accident. That's where we come in; we're computer professionals. We cause accidents." -- Nathaniel Borenstein, co-creator of MIME _______________________________________________ cryptography mailing list [email protected] http://lists.randombit.net/mailman/listinfo/cryptography
