Cynthia H. Brown wrote:
On Tue, 11 Mar 1997, Dale Thorn wrote:
Actually, the computer you type on will be very easy to pick out of the noise field with modest spy equipment sitting down the street.
Other places to look for emissions: the power supply, and the connection points for peripherals. Make sure you leave adequate ventilation, though (another tricky part).
Funny thing was, first time I used PGP I was typing in a passphrase and apparently PGP was doing something to the keyboard processor on my laptop, because all of a sudden I thought I'd gotten bat's ears - I could hear interesting new noises every time I pressed a key, which I hadn't heard before (at least at an audible volume). It occurred to me that typing in a PGP passphrase would be a particularly bad time to increase the emissions....