Dailydave mailing list archives
Re: All your keyboard are belong to us
From: Martin Vuagnoux <dailydave () vuagnoux com>
Date: Mon, 20 Oct 2008 16:56:18 +0200
Thierry Zoller a écrit :
Dear Martin, Very interesting, could you elaborate on your experiences, with a running laptop (lcd/tft turned on) ? Is the attack still feasiable to a 100% ? What influences does the emissions from the PC or Screen have and do they make the attack "impossible" ?
Hi Thierry, We removed power supply and LCD monitor because there are already known attacks which use them. In the paper we show how they can be used to improve the eavesdropping rang. If you look at the video, you see three LCD displays in the room, with 3 computers (I don't count the laptop). They were all running and emitting electromagnetic waves, but the frequency range used by keyboards is preserved. It's generally not a problem. Printers may create bigger interferences when they are printing. In the paper, we show that we can even distinguish multiple keyboards (sharing the same model) in a computer room (our student computer which PC's with LCD and CRT monitors). We spend a lot of time to have a practical attack, which can be really used. These videos show the worst case for us: 802.11n base stations and something like 60 computers on the same floor with a computer cluster and printers just 2 room away. However, I cannot garantee that these attacks are 100% reliable. We tried to do our best to have more than just a proof of concept which works in an anechoidal room. I can say that it took a *lot* of time to go from the anechoidal room to a real one. Martin _______________________________________________ Dailydave mailing list Dailydave () lists immunitysec com http://lists.immunitysec.com/mailman/listinfo/dailydave
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