Carl-Johan Bostorp wrote:
>
> On Tue, 3 Apr 2001, KR wrote:
>
> > If you are truly concerned with this you should read up on TEMPEST,
>
> Yes. And what's funny is that in US it's illegal to protect against attacks
> of this type by building protection into the walls of a building (without
> prior permission?). I think it was in 'The Code Book' by Simon Singh I read
> about this, but I couldn't find the exact page quickly when looking for it.
> Could've been a link in latest crypto-gram as well.

This is interesting; it would seem that the FBI or the CIA don't want anyone interfering with their
covert work... They'll probably drum up with some lame "the drug cartels will build spy-proof buildings !!!"
excuse to justify spying on their own citizens.

Since the idea behind TEMPEST protection is to build a Faraday cage where radiation can't escape, and pending
verification, you can't legally put steel plate in the walls without due permission, couldn't you just paint
several layers of conductive paint (like the one used for ESD protective packaging or the one used to paint
defroster grids on windshields) inside the room, add a good ground strap, paint it all over with regular
paint and no-one would be the wiser ? That is, until the spooks try to catch you "in the act..." and find
they can't ?

J. Courcoul

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