[tor-bugs] #6545 [Tor Client]: Isolation level may be funky and share circuits?

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Tue Aug 14 19:21:33 UTC 2012


#6545: Isolation level may be funky and share circuits?
------------------------------+---------------------------------------------
 Reporter:  sdjfjsdfiuhszduh  |          Owner:                    
     Type:  defect            |         Status:  new               
 Priority:  normal            |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Client        |        Version:                    
 Keywords:                    |         Parent:                    
   Points:                    |   Actualpoints:                    
------------------------------+---------------------------------------------

Comment(by sdjfjsdfiuhszduh):

 Replying to [comment:2 nickm]:
 > Equal exit nodes are not a sure sign of same circuits.  The goal of
 circuit isolation is not to ensure that streams don't go over the same
 exit, but rather to keep any exit from reliably inferring that those
 streams are coming from the same client by sending them on the same
 circuit.  (And also, to keep any server from deducing that those two
 streams are likelier to come from the same client by making them more
 likely to come from the same exit than they would otherwise.)
 >
 > That said, it seems pretty weird to get so few distinct exits chosen.
 Do you have any options set in your configuration that might affect how
 exits are getting selected?

 I don't think i do. Its the TBB with the unstable version of tor (I
 upgraded to 0.2.3.20-rc which seems to have the same effect) but I changed
 one line to use SocksPort and added many more SocksPort. Here is a copy


 # This file was generated by Tor; if you edit it, comments will not be
 preserved
 # The old torrc file was renamed to torrc.orig.1 or similar, and Tor will
 ignore it

 AvoidDiskWrites 1
 ControlPort 9051
 DataDirectory .........../Tor Browser/Data/Tor
 DirReqStatistics 0
 GeoIPFile .\Data\Tor\geoip
 Log notice stdout
 SocksPort 9050
 SocksPort 6 more of these

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6545#comment:3>
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