[tbb-bugs] #13018 [Applications/Tor Browser]: Math routines are OS fingerprintable

[Tor Bug Tracker & Wiki]

#13018: Math routines are OS fingerprintable
-------------------------------------------------+-------------------------
 Reporter:  mikeperry                            |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-fingerprinting-os-version,       |  Actual Points:
  ff31-esr                                       |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by tom):

 I was worried that we might be exposing hardware information via this.

 I compared the numbers I got on my x64 Nightly running on a Surface Go and
 got the same results as those of Thorin's Win7/Win10 x64 on x64 here:
 https://github.com/ghacksuserjs/TorZillaPrint/issues/30 .  I'm reasonably
 convinced this means that hardware is not a factor in these values, and it
 comes down to OS and related libraries.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13018#comment:28>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online