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From: lsnyder@fig.ucsb.edu (Lowell R. Snyder)
Newsgroups: sci.crypt,alt.security
Subject: Re: Tempest
Message-ID: <lsnyder.735962218@fig>
Date: 28 Apr 93 01:56:58 GMT
References: <1993Apr22.132638.19448@ringer.cs.utsa.edu> <1993Apr24.233742.26839@lehman.com> <1993Apr26.104320.10398@infodev.cam.ac.uk> <1993Apr26.193801.12416@lynx.dac.northeastern.edu>
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angel@Foghorn_Leghorn.coe.northeastern.edu (Kirill Shklovsky) writes:

>In article <1993Apr26.104320.10398@infodev.cam.ac.uk> rja14@cl.cam.ac.uk (Ross Anderson) writes:
>I heard somewhere (can't name the source) that TEMPEST does not necessarily
>pick-up just CRTs, but it can pick up emissions from almost any chip.  If
>that is true, the kind monitor would not make any difference becuase everything
>on the screen can be picked-up from the video controller.  Can anybody verify
>or refute this?

Anything can be an emissions problem, right down to the video cable.  Given
the right equipment, you can pick the screen paint from the cable.  But,
given any cable, you must know what is being sent through it to know the
format of the signal, as well as how many wires, etc.
