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Re: [tor-bugs] #21641 [Core Tor/Tor]: Prop274: Rotate onion keys less frequently



#21641: Prop274: Rotate onion keys less frequently
-------------------------------+------------------------------------
 Reporter:  nickm              |          Owner:  ahf
     Type:  defect             |         Status:  needs_revision
 Priority:  Medium             |      Milestone:  Tor: 0.3.1.x-final
Component:  Core Tor/Tor       |        Version:
 Severity:  Normal             |     Resolution:
 Keywords:  TorCoreTeam201703  |  Actual Points:  2.1
Parent ID:                     |         Points:  2
 Reviewer:  nickm              |        Sponsor:  Sponsor4
-------------------------------+------------------------------------
Changes (by nickm):

 * status:  needs_review => needs_revision
 * reviewer:   => nickm


Comment:

 Looks good!

 Suggestions:
    * When a time interval (like MIN/MAX/DEFAULT_ONION_KEY_LIFETIME) has a
 unit other than seconds, put the unit in the name.  (eg,
 "MIN_ONION_KEY_LIFETIME_DAYS").  Otherwise people tend to assume seconds.
 Same for DEFAULT/MIN onion_key_grace_period.
    * Maybe we should check whether the onion key is expired more
 frequently than the get_onion_key_lifetime() interval? -- otherwise, if
 the interval changes in the consensus, we won't reach the interior of
 rotate_onion_key_callback().  Same for the other callback.
    * The documentation for expire_old_onion_keys should make it clear that
 the function doesn't perform a grace period check.
    * This branch needs a changes file.

 (Also please remember when you make these changes, fixup commits are
 easier to review than a completely new or rebased branch.)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21641#comment:5>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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