CDR: RE: Burglar Politics, Tempesting PC's that watch TV and DVD regions
On Wed, 11 Oct 2000, jim bell wrote:
A popular, but false, myth. The video cards radiate more than the CRT's. Laptops tend to be the worst offenders.
--Lucky Green
As to the video cards... Sorry, Lucky, but you're going to have to support this a little better. Emissions are a function of the signal voltage in a conductor, and the extent that this conductor is free to emit.
NP. There is plenty of conductor in a laptop. What tends to be missing,
though, is shielding. In particular, laptops tend to have plastic cases.
Without a metal case, even a badly designed, at all, a little signal goes a
long way.
You also may wish to inquire with Ross Anderson or Markus Kuhn what type of
computer their group uses for the van Eck demos and why. Last I talked about
this with them, it was a laptop.
Have fun,
--Lucky Green
participants (1)
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Lucky Green