On Tue, Dec 11, 2007 at 03:59:59PM +0100, kazaam wrote: > I dunno how public it is but I found today this dissertation by > Steven Murdoch about attacking the tor-network via covert- and > sidechannels: http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-706.pdf
This results discussed aren't actually that new. Chapters 4 and 5, which are on Tor, are based on papers published in May 2005 and October 2006 respectively. http://www.cl.cam.ac.uk/~sjm217/papers/oakland05torta.pdf http://www.cl.cam.ac.uk/~sjm217/papers/ccs06hotornot.pdf I've now published the thesis version of these papers, which have more diagrams and other improvements, but the underlying data and conclusions are the same. To quote from my previous message: "To avoid any misunderstanding, I should add that there is no reason to panic. Primarily the paper is designed to feed into the future design of Tor rather than suggest any short term fixes. There are already known attacks on Tor which will probably work better than this, but the proposed defences to these will not fix the problem I discuss in the paper. Also, in the paper, I say that for clarity the results in the paper are mainly from a private Tor network and running it in reality will be more messy. However, as the performace of the Tor network improves, the attack will be more effective, so is worth bearing in mind for the future." -- http://archives.seul.org/or/talk/Sep-2006/msg00080.html Steven. -- w: http://www.cl.cam.ac.uk/users/sjm217/
