Re: Satellite eavesdropping of 802.11b traffic

2004-05-30 Thread Dirk-Willem van Gulik
On May 27, 2004, at 12:35 PM, John Kelsey wrote: Does anyone know whether the low-power nature of wireless LANs protects them from eavesdropping by satellite? Is there some simple reference that would easily let me figure out whether transmitters at a given power are in danger of eavesdropping

Re: Satellite eavesdropping of 802.11b traffic

2004-05-28 Thread Ed Reed
Why worry about satellites when car/plane/neighbor unpiloted remote controlled airplanes work so well? You're free-radiating electronic emissions. That's all a determined adversary needs. Or an opportunistic war-driving script-kiddie, for that matter. John Kelsey [EMAIL PROTECTED] 5/27/2004

RE: Satellite eavesdropping of 802.11b traffic

2004-05-28 Thread Trei, Peter
R. A. Hettinga At 12:35 PM -0400 5/27/04, John Kelsey wrote: Does anyone know whether the low-power nature of wireless LANs protects them from eavesdropping by satellite? It seems to me that you'd need a pretty big dish in orbit to get that kind of resolution. The Keyholes(?) are

Re: Satellite eavesdropping of 802.11b traffic

2004-05-28 Thread Perry E. Metzger
Trei, Peter [EMAIL PROTECTED] writes: I suspect that eavesdropping on 802.11b/g from orbit is pretty hard. The power levels are very low, and there may be several nets running on the same channel within a satellites' antenna footprint. As I mentioned, phased arrays are very good at

Re: Satellite eavesdropping of 802.11b traffic

2004-05-28 Thread Arnold G. Reinhold
At 9:19 PM -0400 5/27/04, Perry E. Metzger wrote: R. A. Hettinga [EMAIL PROTECTED] writes: At 12:35 PM -0400 5/27/04, John Kelsey wrote: Does anyone know whether the low-power nature of wireless LANs protects them from eavesdropping by satellite? It seems to me that you'd need a pretty big dish

Re: Satellite eavesdropping of 802.11b traffic

2004-05-28 Thread Matt Crawford
Don't dismiss possibilities for wireless data eavesdropping without considering the possibilities of this new chip http://pr.caltech.edu/media/Press_Releases/PR12490.html and its friends http://www.chic.caltech.edu/ - The

Re: Satellite eavesdropping of 802.11b traffic

2004-05-28 Thread Eugen Leitl
On Fri, May 28, 2004 at 01:19:15PM -0500, Matt Crawford wrote: Don't dismiss possibilities for wireless data eavesdropping without considering the possibilities of this new chip http://pr.caltech.edu/media/Press_Releases/PR12490.html and its friends http://www.chic.caltech.edu/ If you