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Re: [tor-bugs] #16110 [Tor Browser]: Improve Time Resolution Defense

#16110: Improve Time Resolution Defense
-------------------------+-------------------------------------------------
     Reporter:           |      Owner:  mikeperry
  mikeperry              |     Status:  assigned
         Type:  defect   |  Milestone:
     Priority:  normal   |    Version:
    Component:  Tor      |   Keywords:  ff38-esr, tbb-fingerprinting-time-
  Browser                |  highres, tbb-5.0a-highrisk,
   Resolution:           |  TorBrowserTeam201506, MikePerry201506
Actual Points:           |  Parent ID:
       Points:           |
-------------------------+-------------------------------------------------

Comment (by mikeperry):

 Replying to [comment:7 mikeperry]:
 > Replying to [comment:6 gk]:
 > > Replying to [ticket:16110 mikeperry]:
 > > > Firefox 38 also added a bunch more time sources to
 window.Performance, and also added Performance API support to WebWorkers
 and SharedWorkers.
 > >
 > > See #16340 which is/was for this investigation in particular.
 >
 > Also related: #13024, #16336.

 I handled #16340 using the same approach as #1517. I also handled #13024
 and #16336 using the prefs. I am leaving this ticket open to apply a
 better defense as described in the description at a later point, and/or to
 relax the amount we clip by.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16110#comment:12>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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