[tor-bugs] #16110 [Applications/Tor Browser]: Improve Time Resolution Defense
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Fri Oct 28 14:24:13 UTC 2016
#16110: Improve Time Resolution Defense
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Reporter: mikeperry | Owner: mikeperry
Type: defect | Status:
| needs_review
Priority: Medium | Milestone:
Component: Applications/Tor Browser | Version:
Severity: Normal | Resolution:
Keywords: tbb-fingerprinting-time-highres | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by bugzilla):
Replying to [comment:6 gk]:
> Replying to [ticket:16110 mikeperry]:
> > Firefox 38 also added a bunch more time sources to window.Performance,
and also added Performance API support to WebWorkers and SharedWorkers.
>
> See #16340 which is/was for this investigation in particular.
API was added specially to gain sub-ms resolution, and you set it to 100
ms, thus made fully useless.
Authors tried to cope with some issues: https://www.w3.org/TR/hr-time
/#privacy-security.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16110#comment:21>
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