TEMPEST laptops

[Tim May]

At 5:32 PM -0800 11/1/98, Lucky Green wrote:
>On Sun, 1 Nov 1998, Bill Stewart wrote:
>[...]
>> Just using a regular laptop isn't enough; I've seen laptops
>> transmit recognizable images to a television (though I was probably
>> using AC power rather than batteries, and may or may not have had
>> the display mode set to LCD-and-monitor.)
>
>Thanks for touching on the popuar myth that laptops radiate less than
>CRT's. Many laptops in fact radiate more compromising emissions than
>CRT's. Ross Anderson does his van Eck demos to undergrads using a laptop,
>because it works so much better than CRT's.

But laptops are certainly smaller than desktops + monitors are, and can be
run off of batteries. This makes laptops better candidates for a sealed box
commercial product.

--Tim May

Y2K: A good chance to reformat America's hard drive and empty the trash.
---------:---------:---------:---------:---------:---------:---------:----
Timothy C. May              | Crypto Anarchy: encryption, digital money,
ComSec 3DES:   831-728-0152 | anonymous networks, digital pseudonyms, zero
W.A.S.T.E.: Corralitos, CA  | knowledge, reputations, information markets,
Licensed Ontologist         | black markets, collapse of governments.