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Re: [tor-bugs] #31823 [Core Tor/Stem]: HSv3 descriptor support in stem [encoding]

#31823: HSv3 descriptor support in stem [encoding]
-------------------------------------------------+-------------------------
 Reporter:  asn                                  |          Owner:  atagar
     Type:  defect                               |         Status:
                                                 |  needs_revision
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Stem                        |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs scaling onionbalance          |  Actual Points:  2
  network-team-roadmap-september tor-spec        |
Parent ID:  #26768                               |         Points:  5
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by asn):

 Replying to [comment:14 atagar]:
 >
 > Is that what you would like? The base64 encoding of a random key? If so
 that's a very simple tweak to make. Or are you requesting something else?

 Yep, that's good for the `desc-auth-ephemeral-key` part!

 Yep, my wrong for not documenting why client auth values were fabricated
 like that. The reason is that's actually also what little-t-tor does, so
 ideally we would blend in as well. Here is how tor.git makes fake auth-
 client entries
 (https://github.com/torproject/tor/blob/master/src/feature/hs/hs_descriptor.c#L2852)
 and here how it calculates the number of fakes to add
 (https://github.com/torproject/tor/blob/master/src/feature/hs/hs_service.c#L1794).
 For stem we can just always add 16 fake auth client lines and that's good
 enough for now (since stem does not have support for actual client
 authorization yet).

 ----

 Other than that, key blinding works just fine now over here! I also
 replide on the other PR comments!

 I will keep on testing and reviewing in the meanwhile while I develop
 onionbalance. Thanks for the help!

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31823#comment:16>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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