[tor-bugs] #6418 [Tor Hidden Services]: Drop support for older versions of the hidden service protocol

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Thu Jul 19 14:23:27 UTC 2012


#6418: Drop support for older versions of the hidden service protocol
---------------------------------+------------------------------------------
 Reporter:  nickm                |          Owner:                    
     Type:  project              |         Status:  new               
 Priority:  normal               |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor Hidden Services  |        Version:                    
 Keywords:                       |         Parent:                    
   Points:                       |   Actualpoints:                    
---------------------------------+------------------------------------------
 We've supported v3 introduce{1,2} cells since 0.2.1.

 We've supported v2 descriptors since 0.2.0.

 There is no need for clients and servers to continue supporting older
 versions of the hidden service protocols; there is probably no need for
 "hidden service authorities" to exist; and there is probably a bunch of
 other code here we can discard too.

 The one wrinkle to think about is that removing support here _might_
 enable an adversary to tell when a client or service has switched to a
 newer version of Tor.  Generally, we don't care about that, but we should
 still think about it.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6418>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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