[tor-bugs] #6790 [Tor Directory Authority]: Write proposal draft for directory mirrors to accept, aggregate and hand off descriptors to dirauths

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#6790: Write proposal draft for directory mirrors to accept, aggregate and hand
off descriptors to dirauths
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 Reporter:  mikeperry                         |          Owner:                    
     Type:  enhancement                       |         Status:  new               
 Priority:  normal                            |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor Directory Authority           |        Version:                    
 Keywords:  MikePerry201210, proposal-needed  |         Parent:  #2664             
   Points:                                    |   Actualpoints:                    
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Comment(by mikeperry):

 Sebastian,nickm: Actually, as I see it the root issue is eliminating
 dirauths as a (collective) single points of failure in terms of capacity.
 Having a separate port for descriptor submission from the whole Internet
 does not fix this.

 In an ideal world, each dirauth should not need more than a cell phone's
 worth of uplink flying around on a quadrocopter somewhere. It's fine to
 have this centralization exist for consensus reasons, but it should not be
 exposed for anything else. That's just dangerous. I mean, how many times
 do we have to shoot *ourselves* in the head before we realize someone else
 can do it, too?

 ioerror: Can you explain the backchannel that the adversary uses to get
 the result back in what I describe in comment 1? Or better put: What is
 the adversary's goal with such probes?

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6790#comment:8>
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