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Re: [tor-bugs] #13017 [Applications/Tor Browser]: Determine if AudioBuffers/OfflineAudioContext are a fingerprinting vector
#13017: Determine if AudioBuffers/OfflineAudioContext are a fingerprinting vector
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Reporter: mikeperry | Owner:
| arthuredelstein
Type: task | Status:
| assigned
Priority: Very High | Milestone:
Component: Applications/Tor Browser | Version:
Severity: Critical | Resolution:
Keywords: tbb-fingerprinting-os, | Actual Points:
TorBrowserTeam201608 |
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by qSKvY):
I run browserprint.info which has these tests on it and can confirm that
the tests appear to be stable among regular browsers.
We looked at sets of multiple fingerprints that were made by the same
browser.
We found that "Fingerprint using DynamicsCompressor (sum of buffer
values):", "Fingerprint using DynamicsCompressor (hash of full buffer):",
and "AudioContext properties:" where very stable (between 1 and 10
instances out of ~500 of them changing between fingerprints).
The other two were less stable but the majority of the time they were
consistent (56 and 87 instances of them changing between fingerprints out
of ~500).
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13017#comment:34>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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