[tor-bugs] #33712 [Core Tor/Tor]: Design a PoW/credential scheme for HS DoS defence

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#33712: Design a PoW/credential scheme for HS DoS defence
-------------------------+-------------------------------------------------
     Reporter:  asn      |      Owner:  (none)
         Type:  defect   |     Status:  new
     Priority:  Medium   |  Milestone:  Tor: unspecified
    Component:  Core     |    Version:
  Tor/Tor                |   Keywords:  tor-hs, tor-dos, network-team-
     Severity:  Normal   |  roadmap-2020Q1, network-health, research
Actual Points:           |  Parent ID:  #31223
       Points:           |   Reviewer:
      Sponsor:           |
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 Some initial research has been done on #31223 to sketch out a
 PoW/credential scheme that works for HS DoS defence.

 This ticket is to continue scheming and working on this design.

 Also see #33650 for an analysis on whether we can use v3 descriptors and
 INTRO cells as an end-to-end channel for passing parameters and tokens.

 Also see [https://lists.torproject.org/pipermail/tor-
 dev/2020-March/014198.html this thread] for an initial exploration of anon
 credential schemes.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33712>
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