[tor-bugs] #8151 [Tor]: Dirauths should publicize their flag cutoff values in their votes

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Feb 4 10:56:24 UTC 2013


#8151: Dirauths should publicize their flag cutoff values in their votes
----------------------+-----------------------------------------------------
 Reporter:  asn       |          Owner:                    
     Type:  defect    |         Status:  new               
 Priority:  normal    |      Milestone:  Tor: 0.2.5.x-final
Component:  Tor       |        Version:                    
 Keywords:  tor-auth  |         Parent:                    
   Points:            |   Actualpoints:                    
----------------------+-----------------------------------------------------
 To detect sybil attacks faster, it might be a good idea for dirauths to
 publicize their flag cutoff values in their votes.

 This way they can be collected and analyzed, and maybe used by a script
 like consensus-health to detect anomalies.

 (For example, in yesterday's attack, the cutoffs of moria looked like:
 {{{
 Cutoffs: For Stable, 404881 sec uptime, 242577 sec MTBF. For Fast: 1
 bytes/sec. For Guard: WFU 95.962%, time-known 110475 sec, and bandwidth
 71680 or  58291 bytes/sec. We have enough stability data.
 }}}
 (see the `Fast` cutoff))

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8151>
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