[tbb-bugs] #13018 [Tor Browser]: Determine if high-precision Math routines are fingerprintable

[Tor Bug Tracker & Wiki]

#13018: Determine if high-precision Math routines are fingerprintable
-------------------------+-------------------------------------------------
     Reporter:           |      Owner:  tbb-team
  mikeperry              |     Status:  new
         Type:  task     |  Milestone:
     Priority:  normal   |    Version:
    Component:  Tor      |   Keywords:  tbb-fingerprinting, tbb-easy,
  Browser                |  ff31-esr, TorBrowserTeam201410Easy
   Resolution:           |  Parent ID:
Actual Points:           |
       Points:           |
-------------------------+-------------------------------------------------

Comment (by gk):

 The windows values are:
 {{{
     asinh(1) = 0.8813735870195429
     acosh(1e300) = 691.4686750787737
     atanh(0.5) = 0.5493061443340549
     expm1(1) = 1.718281828459045
     log1p(10) = 2.3978952727983707
     sinh(1) = 1.1752011936438014
     cosh(10) = 11013.232920103323
     tanh(1) = 0.7615941559557649
 }}}
 And the OS X values are only in cosh(10) different, too. I wonder whether
 we could get bigger differences by picking better values for these
 functions (I almost bet this is the case).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13018#comment:8>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online