----- Forwarded message from Bryce Lynch <[email protected]> -----
From: Bryce Lynch <[email protected]> Date: Tue, 21 Aug 2012 13:08:52 -0400 To: [email protected] Cc: [email protected] Subject: [ZS] Re: [tor-talk] End-to-end correlation for fun and profit Reply-To: [email protected] On Tue, Aug 21, 2012 at 3:39 AM, ZeroState.net <[email protected]> wrote: > This sounds like a potentially powerful anti-Tor method, if I > understand correctly. Basically it's an inference method that treats > the Tor network as a black box, right? > > Do we think this is a serious problem? I don't know. There isn't a whole lot we can do if entire ISPs are tapped (the Syria problem) aside from avoid their network infrastructure entirely. ... After sprinting through the Tor source code, I came across this official documentation pertaining to how Tor chooses next nodes in a circuit: https://gitweb.torproject.org/torspec.git/blob/HEAD:/path-spec.txt#l184 Quote: "We do not choose more than one router in a given /16 subnet (unless EnforceDistinctSubnets is 0)." This configuration setting defaults to 1/True. Verified: https://gitweb.torproject.org/tor.git/blob/49d150a9fad2cb8d3887af1e112b15365c11f4ba:/src/or/config.c#l2591 https://gitweb.torproject.org/tor.git/blob/49d150a9fad2cb8d3887af1e112b15365c11f4ba:/src/or/or.h#l2777 https://gitweb.torproject.org/tor.git/blob/49d150a9fad2cb8d3887af1e112b15365c11f4ba:/src/or/routerlist.c#l1350 https://gitweb.torproject.org/tor.git/blob/49d150a9fad2cb8d3887af1e112b15365c11f4ba:/src/or/routerlist.c#l1401 This claim sounds a little fishy to me, in this light. -- The Doctor [412/724/301/703] [ZS] https://drwho.virtadpt.net/ "I am everywhere." -- -- Zero State mailing list: http://groups.google.com/group/DoctrineZero ----- End forwarded message ----- -- Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE _______________________________________________ tor-talk mailing list [email protected] https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk
