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

From: youennf via GitHub <sysbot+gh@w3.org>
Date: Thu, 24 Jan 2019 15:45:34 +0000
To: public-webrtc-logs@w3.org
Message-ID: <issue_comment.created-457244565-1548344733-sysbot+gh@w3.org> 
> Pre-first-grant:
> 1. For 99% of users, _enumerateDevices()_ leaks no more than UA + _getUserMedia()_ probing.

> Pre-subsequent-grant:
> ...
> 3. 99% of the time, _enumerateDevices()_ leaks no more than _getUserMedia()_ probing.

The difference is that enumerateDevices will leak information without any prompt.
getUserMedia can be implemented in a way that would require user prompting to be able to get as much information as enumerateDevices would expose.
This makes getUserMedia probing much more costly than enumerateDevices.

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Received on Thursday, 24 January 2019 15:45:35 UTC

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