[tor-bugs] #17716 [Tor]: Do clients need to do authority clock checks?
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Sat Nov 28 00:34:04 UTC 2015
#17716: Do clients need to do authority clock checks?
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Reporter: teor | Owner:
Type: enhancement | Status: new
Priority: Medium | Milestone: Tor: 0.2.8.x-final
Component: Tor | Version:
Severity: Normal | Keywords:
Actual Points: | Parent ID: #4483
Points: | Sponsor:
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The current code in #4483 tracks if a client has done a clock check with
an authority.
But it doesn't do anything with that information at the moment:
* making clients wait to contact an authority during bootstrap negates the
point of fallback directories (#15775)
* making clients continue to contact authorities after bootstrapping risks
an inadvertent DoS on the authorities.
How important are client clock checks?
Do we need to launch a connection every N hours / days simply to check our
clock with an authority?
Is it worth the extra load on the authorities?
Do we trust the clocks on fallback directories?
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17716>
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