[SATLUG] spam-fighting techniques

Travis H. travis at nexus.subspacefield.org
Sat Oct 28 18:27:20 CDT 2006


On Sat, Oct 28, 2006 at 06:14:45PM -0500, David Kowis wrote:
> When you built your house, did you get them to put a faraday cage in the
> walls? ;P

Well, I'm still renting, but I've got plans. ;-)

The hard part is actually testing it, because shielding is finicky;
I've read of TEMPEST-rated equipment that fails its tests, then they
clean the whole thing and re-assemble it, and suddenly it works to spec.
So basically in the military, messing with TEMPEST-rated equipment without
proper authority and training can get you in big trouble.  Apparently if
you don't get the connections just right it can actually act as a waveguide
(or directional antenna) and channel all of the signal out in certain
directions.

Anyhow, I don't believe in working on something that touchy and not doing
some rigorous testing to make sure I've done it right.  My plans are to
run this: http://www.erikyyy.de/tempest/ and measure the strength of the
FM signal it sends out before, and after shielding, from several spots.

If I suddenly find myself with $1M to spare, then I'll probably opt for
the decommisioned missle silo.  I like the Titan-I series:

http://www.missilebases.com/titan1/titanplans.htm

And then I'll build a house on top of it, and make a hidden door
(perhaps just a cupboard) that leads to the entrance.

And then I will throw some great parties :-)
-- 
"Cryptography is nothing more than a mathematical framework for
discussing various paranoid delusions." -- Don Alvarez
<URL:http://www.subspacefield.org/~travis/> -><-


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