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Re: Online tracking: A 1-million-site measurement and analysis

From: Martin Thomson <martin.thomson@gmail.com>
Date: Fri, 27 May 2016 17:02:13 +1000
Message-ID: <CABkgnnXObnp_OP=fwySFbAotOwPfP_TUrtD720P1+8oP+N-_OQ@mail.gmail.com>
To: Joseph Lorenzo Hall <joe@cdt.org>
Cc: Melvin Carvalho <melvincarvalho@gmail.com>, TAG List <www-tag@w3.org>
On 26 May 2016 at 09:04, Joseph Lorenzo Hall <joe@cdt.org> wrote:
> a fascinating use of AudioContext to
> fingerprint the device without doing any actual audio output (one
> method does an FTT and sets gain to zero (mute) before playing, the
> other copies to a OfflineAudioContext buffer).

The problem here is that it is highly correlated with other
information (like the UA string) since it's based on implementation
variation and not machine-based.  It will be easily defeated by the
planned addition of dithering.
Received on Friday, 27 May 2016 07:02:41 UTC

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