[tor-bugs] #23466 [Core Tor/Tor]: hs: v3 client descriptor cache entry should be indexed by blinded key

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#23466: hs: v3 client descriptor cache entry should be indexed by blinded key
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 Reporter:  dgoulet                      |          Owner:  (none)
     Type:  defect                       |         Status:  needs_revision
 Priority:  High                         |      Milestone:  Tor:
                                         |  0.3.2.x-final
Component:  Core Tor/Tor                 |        Version:
 Severity:  Normal                       |     Resolution:
 Keywords:  tor-hs, tor-client, prop224  |  Actual Points:
Parent ID:                               |         Points:
 Reviewer:  dgoulet                      |        Sponsor:
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Comment (by dgoulet):

 Replying to [comment:6 nickm]:
 > I think it's okay to do the callback more frequently, or even just every
 15-30 minutes.  Just make sure that the lookup function checks for expired
 entries and doesn't return them?

 @asn: so basically, it seems that we could simply remove the clean up
 function from the lookup() so we keep the lookup O(1) and a gap of 30
 minutes after the new time period is fine because service will still be
 reachable with that previous descriptor so it is very acceptable.

 And we make the lookup() function not return expired entries.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23466#comment:8>
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