[tor-bugs] #4810 [Torbutton]: Weird screen sizes reported by Panopticlick

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Mon Jan 2 02:04:28 UTC 2012


#4810: Weird screen sizes reported by Panopticlick
-----------------------+----------------------------------------------------
 Reporter:  erikd      |          Owner:  erikd             
     Type:  defect     |         Status:  new               
 Priority:  normal     |      Milestone:                    
Component:  Torbutton  |        Version:  Torbutton: 1.4.4.1
 Keywords:             |         Parent:                    
   Points:             |   Actualpoints:                    
-----------------------+----------------------------------------------------
 When I go to https://panopticlick.eff.org/index.php with TorButton
 (1.4.5.1) Panopticlick reports (among other things):

 {{{
   Screen Size and Color Depth          1150x600x24
   bits of identifying information      14.67
   one in x browsers have this value    26138.95
 }}}

 but if I go without TorButton it reports:

 {{{
   Screen Size and Color Depth          1280x800x24
   bits of identifying information      3.9
   one in x browsers have this value    14.94
 }}}


 I would suggest that the default settings for the non TorButton report are
 far more anonymous than the TorButton report.

 I would suggest changing TorButton to use the default screen size and
 resolution rather than a modified version.

 I have already started work on this.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4810>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online


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