[tor-bugs] #25754 [Core Tor/Tor]: Make Prop#291 choices

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#25754: Make Prop#291 choices
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 Reporter:  mikeperry                            |          Owner:  (none)
     Type:  defect                               |         Status:  new
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.4.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  034-roadmap-subtask, tor-guard,      |  Actual Points:
  guard-discovery                                |
Parent ID:  #25546                               |         Points:
 Reviewer:                                       |        Sponsor:
                                                 |  SponsorV-can
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Comment (by asn):

 Replying to [ticket:25754 mikeperry]:
 >
 > At a high level, the choices are:
 >  0. Do nothing. (If we choose this, I want us to do it for specific
 reasons, rather than default to it).
 >  1. Use two guards, and ensure one is from a different /16 and node
 family (Section 1.1 and 1.2).
 >  2. Abandon all of Tor's path restrictions (Section 3.1)

 This '''"all of Tor's path restrictions"''' phrasing is scary. First of
 all, we only need to relax the path restrictions on HS-related circuits
 right (particularly HSDir, IP and RP circs)? And in particular we need to
 relax the single restriction of disallowing guard and final hop being the
 same node (or in the same family or /16). No other path restrictions
 should be edited IIUC.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25754#comment:3>
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