[tor-bugs] #22277 [Core Tor/Tor]: Make sure RSOS is documented in specifications

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#22277: Make sure RSOS is documented in specifications
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 Reporter:  nickm                        |          Owner:
     Type:  defect                       |         Status:  assigned
 Priority:  High                         |      Milestone:  Tor:
                                         |  0.3.1.x-final
Component:  Core Tor/Tor                 |        Version:
 Severity:  Normal                       |     Resolution:
 Keywords:  prop224, rsos, single-onion  |  Actual Points:
Parent ID:  #21554                       |         Points:
 Reviewer:                               |        Sponsor:
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Changes (by teor):

 * keywords:   => prop224, rsos, single-onion


Comment:

 There are no dir-spec changes for single onion services.

 prop#224 contains an onion service descriptor entry for single onion
 services in the encrypted section, that belongs in rend-spec. Let's
 explain single onion services there when we merge prop#224 into rend-spec:

     Single onion services connect directly to introduction and rendezvous
 points. They use a 3-hop path to connect to HSDirs, to avoid malicious
 HSDirs rejecting descriptors by service IP address.

 We could even add this to rend-spec now if we wanted to, but that would
 duplicate the info once prop224 merges.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22277#comment:4>
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