[tor-bugs] #23101 [Core Tor/Tor]: Predict and build specific HS purpose circuits (rather than GENERAL)

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#23101: Predict and build specific HS purpose circuits (rather than GENERAL)
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 Reporter:  mikeperry                            |          Owner:
                                                 |  mikeperry
     Type:  enhancement                          |         Status:
                                                 |  merge_ready
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs, tor-guard, guard-discovery-  |  Actual Points:
  prop247-controller, review-group-27, review-   |
  group-30                                       |
Parent ID:  #13837                               |         Points:
 Reviewer:  asn                                  |        Sponsor:
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Comment (by arma):

 Replying to [comment:26 teor]:
 > * HSDir uploads and fetches use a 3-hop circuit (do we want to use
 vanguards for those?)

 I'm under the impression that the patches here try to use vanguard
 circuits for onion descriptor uploads and fetches.

 > But maybe it is better to always do vanguards for internal circuits. Do
 we know if the onion service attacks apply to other circuits?

 A good question. Is there some revised vanguard design proposal at this
 point? :) It would seem that at least service-side publishing doesn't
 happen that often, and more importantly doesn't happen in response to
 adversary action, so it wouldn't benefit as much from the vanguard
 approach.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23101#comment:27>
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