[tor-bugs] #20055 [Core Tor/Tor]: Remove relays that fail to rotate onion keys from the consensus

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#20055: Remove relays that fail to rotate onion keys from the consensus
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 Reporter:  teor                            |          Owner:
     Type:  enhancement                     |         Status:  new
 Priority:  Medium                          |      Milestone:  Tor:
                                            |  unspecified
Component:  Core Tor/Tor                    |        Version:
 Severity:  Normal                          |     Resolution:
 Keywords:  tor-spec, triaged-out-20170116  |  Actual Points:
Parent ID:                                  |         Points:  1
 Reviewer:                                  |        Sponsor:
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Comment (by teor):

 Once we define an acceptable rotation range (for example, 7-30 days), we
 can develop exclusion criteria like:
 * rotates more than twice in 7 days (places too much load on the network),
 or
 * has not rotated in 60 days (no forward secrecy).

 Key pinning will also exclude some of the frequent relays.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20055#comment:14>
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