[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:28 teor]:
 > Let's not assume this.

 Agreed. Using the vanguard circuits for onion descriptor posts / fetches
 is the clear right move, first because there's little downside and an
 unknown upside (that is, if we turn out to regret our choice, it's going
 to be because we *didn't* use the vanguard circs for them), and second
 because guard discovery attacks on the onion descriptor posts are already
 too fast for our comfort.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23101#comment:30>
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