Re: [PLUG] key-signing Thursday?

["eric@lucii.org" <eric@lucii.org>]

It depends on the frequency/wavelength involved.  Monitor emissions may have
enough high frequency components to leak through chicken wire.  I don't know
for sure.   A friend of mine from many years ago saw some guys in a laboratory
use off the shelf electronics gear (RF detectors, RF amplifiers, etc.)  and a
monitor to capture and redisplay the screen of a monitor _in_the_next_room.  It
was over 20 feet away and through a wall.  The antenna was a 36" collapasable
whip antenna.


Who *really* knows since the last I heard the tempest specifications
are classified.  I'd use expanded steel mesh...  finer holes but quite a bit
more expensive and harder to work with.  Perhaps ordinary window screen (metal
not plastic) would work.  

    See: http://www.lucii.org/eric/rant.html
     for some further off topic thoughts.  :-D

Eric


On Fri, Apr 19, 2002 at 11:07:27AM -0500, Tobias DiPasquale wrote:
> On Fri, 2002-04-19 at 09:55, gabriel rosenkoetter wrote:
> > Or, really, just put some shielding around your machine. (Is
> > chicken-wire wrapping still considered good enough?)
> 
> Yeah, that would produce a Faraday effect and block wireless
> communications. Just move away from it to make calls on your cell phone
> ;-)
> 
> -- 
> ------------------------------------------------------
> << Tobias DiPasquale >>
> UNIX Software Engineer [Linux/BSD/UNIX/C/Java/Ruby]
> mailto:anany@ece.villanova.edu | web:http://cbcg.net/
> ------------------------------------------------------
> Software engineers are not traditional engineers; 
> they're rock stars.
>   -- Greg Copeland, CTO of Cenzic

-- 
#   Eric Allan Lucas 
#  Just because I'm paranoid doesn't mean they aren't out to get me!! 
#   Vote Libertarian!!  Ken Krawchuk for Governor of Pennsylvania
#                       see http://www.kenk.org

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