[tor-bugs] #17361 [Tor]: Don't allow circuits with same countries

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Dec 15 20:06:31 UTC 2015


#17361: Don't allow circuits with same countries
-------------------------+---------------------------
 Reporter:  cypherpunks  |          Owner:  tbb-team
     Type:  defect       |         Status:  closed
 Priority:  Very High    |      Milestone:
Component:  Tor          |        Version:
 Severity:  Normal       |     Resolution:  duplicate
 Keywords:               |  Actual Points:
Parent ID:               |         Points:
  Sponsor:               |
-------------------------+---------------------------
Changes (by teor):

 * status:  new => closed
 * resolution:   => duplicate
 * component:  Tor Browser => Tor


Comment:

 This is a duplicate of #3678, please read the comments there as to why
 this is a difficult problem to solve.

 To answer your questions:
 * The top 3 countries make up 60% of the Tor consensus weight. Therefore,
 you are likely to choose a country more than once.
   * Source:
 https://compass.torproject.org/#?exit_filter=all_relays&links&sort=cw&sort_reverse&country=&by_country
 * Tor uses a cryptographically secure PRNG for path selection, based on
 OpenSSL seeded with entropy from the operating system and other sources.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17361#comment:2>
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