12 Aug
2006
12 Aug
'06
7:41 p.m.
Don't know about processors, but Tempest had a
proof of concept for intercepting I/O from kbd/video.
(Anyone else remember Tempest? for a while they were selling big "tinfoil hat"
type shields for monitors and then, suddenly,
it went away.) Was that NSA that came up with the POC?
All you need to do is listen with a laser, and you can tell what
someone is typing - each key sounds just a bit different...
There are some interesting Tempest goodies out there, but I havbe not
seen any lately. DEC made a VT100 TEMPEST, and IBM made Tempest
versions of the PC.
--
Will