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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:02 ADT
The Spectre (spectre@anthrax.net)
Tue, 17 Mar 1998 16:26:57 -0500
At 15:11 3/17/98 , you wrote:
>Quite a bit.
>
>Beat van Eck monitoring with software. Code your OS and design your fonts
>to resist snooping by that gentleman in the van outside.
>
> http://www.cl.cam.ac.uk/~mgk25/
> http://www.cl.cam.ac.uk/~mgk25/ih98-tempest.pdf
> (Markus Kuhn has posted here before, and may still be on the list.)
Thanks.. someone already forwarded me the URL.. it was interesting stuff.
>Or, cause your target's machines to leak his or her PGP key and passphrase.
Yes, that part became obvious with the keyboard sniffing and/or the font
thing.
Another question I have is about this being used in multi-machine
environments.. how plausible is it to detect the emissions in an
environment where the machines are identical? Say in a corporate
environment where all the PC's are the same make and model, same video
hardware, etc? Is it possible to pick one out of the bunch..?
>The usual non-clueful job by "science editors" like Roger Highfield results
>in much confusion. Avoid the needless wailing and gnashing of teeth that
>sells newspapers, and start modifying your window manager to use tempest
>fonts. :-)
I have a question about the fonts, as well. If the ability to scramble the
fonts is limited by the impact that it has on the readability of the font,
isn't it possible that the garbage each character maps to in a tempest font
will be recognizable?
>PS - Please skip the "highest" priority tag on your mail next time, OK?
Sorry.. it's my default.
-The Spectre [SP4 w/ clam cluster]
-http://www.anthrax.net/cos
"The surest way to corrupt a youth is to instruct him to hold in higher
esteem those who think alike than those who think differently."
-- Neitzsche, _The_Dawn_
PGP key available from servers.
The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:02 ADT