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TEMPEST, Eavesdropping
- To: cypherpunks@toad.com
- Subject: TEMPEST, Eavesdropping
- From: Eric Hughes <hughes@soda.berkeley.edu>
- Date: Wed, 21 Oct 92 10:11:19 -0700
- In-Reply-To: Timothy C. May's message of Tue, 20 Oct 92 15:24:27 PDT <9210202224.AA28714@netcom2.netcom.com>
>Their chief concern doesn't seem to be folks like us, but rather
>concerns about vans parking outside high tech and defense contractors
>and slurping up what they can [...]
When banks start signing with private keys, then we get an even more
interesting monitoring problem.
>And someone asked about building Faraday cages. Don't even try!
Sometimes it is cheaper to build a whole building to be tempest-spec
than to buy all tempest-spec electronics. What I have heard about
such stuff is solid copper walls and no windows. No exacly your
classical Faraday cage; more like your classical Gaussian surface. :->
TEMPEST is an acronym. I don't remember for what.
Eric