[tbb-bugs] #29566 [Applications/Tor Browser]: math.cos reveals OS

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Feb 25 13:47:04 UTC 2019

#29566: math.cos reveals OS
 Reporter:  Thorin                    |          Owner:  tbb-team
     Type:  defect                    |         Status:  closed
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:  duplicate
 Keywords:  tbb-fingerprinting-os     |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:

Comment (by Thorin):

 Did you want to reference this ticket to that one - or would you like me
 to post some info to that ticket (when I'm ready).

 I have done more testing - i.e with relevant builds (TB8, ESR60, FF60-66).
 Been checking 32bit builds on 64bit platforms (windows) and 32bit builds
 on 32bit platforms (Linux, windows). And not just the cos values I have,
 but also the higher math functions. I haven't completed my data set, but
 there's some interesting developements

 Please advise

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29566#comment:4>
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