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TEMPEST, Eavesdropping

To: [email protected]
Subject: TEMPEST, Eavesdropping
From: Eric Hughes <[email protected]>
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 <[email protected]>


>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

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