[tor-bugs] #8146 [Tor]: Don't count Sybil relays when computing Fast, Guard, etc thresholds.

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Feb 4 06:44:22 UTC 2013


#8146: Don't count Sybil relays when computing Fast, Guard, etc thresholds.
----------------------+-----------------------------------------------------
 Reporter:  arma      |          Owner:                    
     Type:  defect    |         Status:  new               
 Priority:  normal    |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor       |        Version:                    
 Keywords:  tor-auth  |         Parent:                    
   Points:            |   Actualpoints:                    
----------------------+-----------------------------------------------------
 If you run ten relays on a single IP address (like is happening right now
 -- see also #8145), the directory authorities will only pick two of them
 for the consensus.

 Problem is, the authority will use the stats from all ten of them when
 deciding the median bandwidth (used for the Guard flag), the 7/8th
 bandwidth (used for Fast flag), etc.

 We should throw out the Sybils before calculating these thresholds.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8146>
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