[tor-bugs] #14917 [Tor]: Client's choice of rend point can leak info about hidden service's guard relay

[Tor Bug Tracker & Wiki]

#14917: Client's choice of rend point can leak info about hidden service's guard
relay
------------------------+--------------------------------
     Reporter:  arma    |      Owner:
         Type:  defect  |     Status:  new
     Priority:  normal  |  Milestone:  Tor: 0.2.7.x-final
    Component:  Tor     |    Version:
   Resolution:          |   Keywords:  SponsorR, tor-hs
Actual Points:          |  Parent ID:
       Points:          |
------------------------+--------------------------------

Comment (by cypherpunks):

 GuardA -> Middle -> GuardA is too bizarre for anyone monitoring the
 network and sends red flags.

 Other possible solution for the EntryNode situation are:
 1) Disregard EntryNode and connect to a second guard as usual.
 2) Increase the hop by one just for this situation. GuardA -> Middle1 ->
 Middle2 -> GuardA
 3) Fail and say we told you not to mess with the selection path.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14917#comment:2>
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