[tor-bugs] #13790 [Core Tor/Tor]: Refactor and add comments to new_route_len()

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#13790: Refactor and add comments to new_route_len()
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 Reporter:  dgoulet                              |          Owner:
                                                 |  catalyst
     Type:  enhancement                          |         Status:
                                                 |  accepted
 Priority:  Low                                  |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  026-deferrable,                      |  Actual Points:
  tor-03-unspecified-201612                      |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by catalyst):

 Which is worse: a path that should be 4 hops becoming 3 hops, or a path
 that should be 3 hops becoming 4 hops?  I would think the first is worse
 because it could compromise anonymity, while the second wastes resources,
 increases latency, and decreases reliability.  Does that sound right?  Or
 does using a longer path than is necessary introduce some security risk
 that I'm missing?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13790#comment:11>
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