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Date: Thu, 9 Jun 2016 09:08:51 -0700
From: cube@browserprint.info
To: tor-talk@lists.torproject.org
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Subject: Re: [tor-talk] Browserprint fingerprinting website
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I have left the tests in, but excluded them from the fingerprint uniqueness calculation.
I've also grayed them out and made it clear that the tests have problems.

> I zoom and change window size often, and they are reset when the browser 
> starts. I think they rather prevent tracking me. But your site tells 
> that my fingerprint is unique because of them. Maybe, exclude those 
> parameters?
> 
> 
> On 07.06.16 07:04, cube wrote:
> > Yes, the TBB and IceCat handle screen size calculations in a way
> > different to most browsers.
> > This results in odd screen sizes and screen sizes that can be affected
> > by zooming.
> > I wasn't aware that the character sizes test was also affected by
> > zooming (this seems to be the case on even regular browsers), thanks for
> > pointing that out.
> > I'm also concerned that you got "nullxnull" for your CSS screen size
> > test, I guess that means the test is bugged.
> >
> > On 07/06/16 07:38, me@beroal.in.ua wrote:
> >> Hi. I pushed the "fingerprint me" button.
> >>
> >> Browser Characteristic | Number of occurrences | one in x browsers
> >> have this value | value
> >> Screen Size and Colour Depth | 1 | 217 | 583x467x24
> >>
> >> It seems that this parameter depends on the zoom, as well as
> >> "Character Sizes".
> >>
> >> On 06.06.16 14:47, cube@browserprint.info wrote:
> >>> Hello, I'm the creator of a new fingerprinting website,
> >>> https://browserprint.info
> >>> Think Panopticlick but with a lot more tests.
> >>> Many of the tests are even designed specifically to catch the Tor
> >>> browser bundle out, for instance the Math/Tan function returns a
> >>> different value based on what your underlying operating system is, so
> >>> it's easy to detect when a browser is lying in their user-agent string.
> >>> I would greatly appreciate if you visit the site and fingerprint
> >>> yourselves since it will help me refine the techniques and improve
> >>> the site.
> >>> I'm adding more tests every week and if you have any ideas or
> >>> suggestions I'd love to hear them.
> 
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