[tor-bugs] #26924 [Core Tor/Tor]: Make single onion service to rend and Tor2web to intro link authentication into a protocol warning

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#26924: Make single onion service to rend and Tor2web to intro link authentication
into a protocol warning
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  teor
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.5.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.2.9.1-alpha
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs, tor-log, tor-relay, certs,   |  Actual Points:
  handshake, ed25519, 035-roadmap-proposed,      |
  035-must, fast-fix, 035-triaged-in-20180711,   |
  029-backport, 032-backport, 033-backport,      |
  034-backport                                   |
Parent ID:  #26627                               |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by teor):

 * keywords:
     tor-relay, certs, handshake, ed25519, 035-roadmap-proposed, 035-must,
     fast-fix, 035-triaged-in-20180711
     =>
     tor-hs, tor-log, tor-relay, certs, handshake, ed25519, 035-roadmap-
     proposed, 035-must, fast-fix, 035-triaged-in-20180711, 029-backport,
     032-backport, 033-backport, 034-backport
 * status:  assigned => needs_review
 * version:  Tor: 0.3.2.4-alpha => Tor: 0.2.9.1-alpha


Comment:

 I chose the easy option, and opened #26928 for follow-up in some future
 release.

 Please see my branches at https://github.com/teor2345/tor.git :
 * bug26924_029 - downgrades Tor2web and single onion service link auth
 failures to a protocol warning
 * bug26924_032 - also improves the actual log message so it says "RSA +
 ed25519" (see #26927)
 * bug26924 - fixes an include path for the mass refactor in master

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26924#comment:1>
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