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Re: [mediacapture-main] Spec does no handle fingerprinting related to exposing non default capture devices (#559)

From: Jan-Ivar Bruaroey via GitHub <sysbot+gh@w3.org>
Date: Sat, 19 Jan 2019 22:32:07 +0000
To: public-webrtc-logs@w3.org
Message-ID: <issue_comment.created-455820747-1547937125-sysbot+gh@w3.org>
As you mention, the spec already calls out the number of devices is a potential fingerprint. I believe the significance of outliers (fonts, dead pixels, uncommon configurations) is well known in the fingerprinting space, and can be assumed to have been understood the several times the fingerprinting surface of this API was discussed in the past, so I'm not sure this qualifies as new information.

FWIW, Firefox implements a `privacy.resistFingerprinting` preference used by the Tor browser (see [blog](https://www.ghacks.net/2018/03/01/a-history-of-fingerprinting-protection-in-firefox/) and [enumerateDevices specifics](https://bugzilla.mozilla.org/show_bug.cgi?id=1372073)), and was accomplished without changing or breaking the API.

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Received on Saturday, 19 January 2019 22:32:08 UTC

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