[tor-bugs] #25568 [Core Tor/Tor]: hs: Lookup failure cache when introducing to an intro point

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#25568: hs: Lookup failure cache when introducing to an intro point
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 Reporter:  dgoulet           |          Owner:  dgoulet
     Type:  defect            |         Status:  assigned
 Priority:  Medium            |      Milestone:  Tor: 0.3.4.x-final
Component:  Core Tor/Tor      |        Version:
 Severity:  Normal            |     Resolution:
 Keywords:  security, tor-hs  |  Actual Points:
Parent ID:                    |         Points:
 Reviewer:                    |        Sponsor:
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Comment (by arma):

 My original suggestion for fixing was that we should consult our failure
 cache when we're about to launch another try.

 But then I realized that maybe we should instead strip duplicate intro
 points when we process the descriptor.

 But then I realized that maybe we should disallow duplicate intro points
 in the protocol, i.e. say in that spec that you can't do that, and then
 refuse descriptors that do.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25568#comment:2>
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