[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
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 Reporter:  asn                                  |          Owner:  (none)
     Type:  defect                               |         Status:  new
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs, tor-dos, network-team-       |  Actual Points:
  roadmap-2020Q1, network-health, research       |
Parent ID:  #31223                               |         Points:
 Reviewer:                                       |        Sponsor:
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Description changed by asn:

Old description:

> 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.

New description:

 Some initial research has been done on comment:13:ticket: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#comment:1>
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