Artur Grabowski <[EMAIL PROTECTED]> writes: > And guess what. Keyboards use a serial protocol. Which means that > there will be slightly different voltage drops in the system varying > with the keys you press. ZOMG! OpenBSD provides a side channel for > attackers through the sensors framework!
And don't forget the aps(4) sensor on Thinkpads! The accelerometer can probably measure the acceleration caused by various key strokes and that acceleration will be different depending on where on the keyboard you hit (different angles) and with which finger (different strength). //art
