Optical Tempest? I have my doubts...

Meyer Wolfsheim wolf at priori.net
Thu Jul 17 13:33:28 PDT 2003

On Thu, 17 Jul 2003, Mike Rosing wrote:

> On Thu, 17 Jul 2003, Tyler Durden wrote:
> > The conspiracy theorist is telling me there's some reason they floated the
> > optical tempest story, though I can't quite figure out what that reason
> > is...
> The main purpose is for academic gain.  If you'd looked at the paper a
> bit, you'd have read it took about 1/2 an hour to reconstruct the image
> from one screen.  It is a proof of principle concept, enough so that
> multi-billion dollar espionage agencies can think about it.  At 30 fps
> for a game, forget it.  But for a slow typist who has to go get a cup
> of coffee because the phone rang....
> It does make the game more interesting, but it's mighty easy to defeat.

For what it's worth, a "secure viewer" that displayed text in red on a
black background should make an optical tempest attack much more


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