[tor-bugs] #13017 [Applications/Tor Browser]: Determine if AudioBuffers/OfflineAudioContext are a fingerprinting vector

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue May 24 06:28:56 UTC 2016


#13017: Determine if AudioBuffers/OfflineAudioContext are a fingerprinting vector
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 Reporter:  mikeperry                        |          Owner:  tbb-team
     Type:  task                             |         Status:
 Priority:  Very High                        |  needs_information
Component:  Applications/Tor Browser         |      Milestone:
 Severity:  Critical                         |        Version:
 Keywords:  tbb-fingerprinting-os, tbb-easy  |     Resolution:
Parent ID:                                   |  Actual Points:
 Reviewer:                                   |         Points:
                                             |        Sponsor:
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Comment (by cypherpunks):

 Replying to [comment:15 cypherpunks]:
 > By the way, for those who want to do the test themselves, use this one:
 https://valve.github.io/fingerprintjs2/

 Wrong.

 fingerprintjs2 does not (currently) contain tests for AudioContext
 fingerprinting: https://github.com/valve/fingerprintjs2/. The OpenWPM page
 has the tests in an embedded script tag (it has several implementations,
 apparently observed in the wild Internet).

 This page has some actual information:
 https://webtransparency.cs.princeton.edu/webcensus/. There's also this
 paper (see section 6.4):
 https://randomwalker.info/publications/OpenWPM_1_million_site_tracking_measurement.pdf

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13017#comment:18>
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