On Tue, Jun 7, 2011 at 2:01 PM, J.A. Terranson <me...@mfn.org> wrote: > On Tue, 7 Jun 2011, Nico Williams wrote: >> TEMPEST. >> >> I'd like keyboards with counter-measures (emanation of noise clicks) >> or shielding to be on the market, and built-in for laptops. > > Remember how well the original IBM PC "clicky keyboard" went over (I think > I'm the only person in the US who actually liked it - veryone gave me > theirs after "upgrading to the newer lightweight and silent ones): the > user experience will always end up with a back seat when it's time to do > the actual work in front of the screen.
Right, I want my ergo, so it can't just be a tank of a keyboard. >> I wonder whether touch-screen smartphones give off any useful RF >> emanations regarding touches, drags, screen contents. > > I haven't done a lot of serious work there, but I did look once at an LG > Optimus V out of idle curiosity: I don't think it would be very difficult > to map many of it's leaky signals. Same for all smartphones in general. My expectation is that smartphones leak plenty -- probably not enough to interfere with avionics, but enough that folks nearby could capture inputs, and probably outputs as well. Nico -- _______________________________________________ cryptography mailing list cryptography@randombit.net http://lists.randombit.net/mailman/listinfo/cryptography
