Re: [tor-bugs] #5563 [Tor Relay]: Better support for ephemeral relay identity keys

["Tor Bug Tracker & Wiki" <torproject-admin@xxxxxxxxxxxxxx>]

#5563: Better support for ephemeral relay identity keys
-------------------------+--------------------------------------------------
 Reporter:  mikeperry    |          Owner:       
     Type:  enhancement  |         Status:  new  
 Priority:  normal       |      Milestone:       
Component:  Tor Relay    |        Version:       
 Keywords:               |         Parent:  #5456
   Points:               |   Actualpoints:       
-------------------------+--------------------------------------------------

Comment(by arma):

 Replying to [comment:5 mikeperry]:
 > the TLS link key, which is authenticated only by the identity key
 (according to my read of tor-spec).

 Correct.

 > what actually verifies that the onion key you try to publish is what
 gets published?

 If you're talking about an adversary who controls your network, what stops
 them from publishing a descriptor for a new relay near you on the network,
 making up their own identity key?

 I worry you're trying to block a particular attack scenario while not
 considering a big pile of equivalently bad attack scenarios.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5563#comment:8>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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