[tor-bugs] #26022 [Metrics/Statistics]: Fix a flaw in the noise-removing code in our onion service statistics

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue May 15 21:21:42 UTC 2018


#26022: Fix a flaw in the noise-removing code in our onion service statistics
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 Reporter:  karsten             |          Owner:  metrics-team
     Type:  defect              |         Status:  needs_review
 Priority:  Medium              |      Milestone:
Component:  Metrics/Statistics  |        Version:
 Severity:  Normal              |     Resolution:
 Keywords:                      |  Actual Points:
Parent ID:                      |         Points:
 Reviewer:                      |        Sponsor:
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Comment (by amj703):

 Also, PrivCount shouldn't be affected by this because it doesn't use bins.
 The bins help make sure, over time, if the noise can be averaged out due
 to a stable (or otherwise derivable) count, the count is still protected
 to within the accuracy of the bins. The PrivCount implementation is
 designed for a research tool that isn't producing these measurement values
 consistently over time. Tor should consider adding this binning
 enhancement for its own implementation of PrivCount.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26022#comment:8>
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