[PrivacyBadger] Canvas Finger Printing

Aaron Gray aaronngray.lists at gmail.com
Wed Jul 23 09:23:37 PDT 2014


Hi,

Just came across this :-

https://securehomes.esat.kuleuven.be/~gacar/persistent/the_web_never_forgets.pdf

https://securehomes.esat.kuleuven.be/~gacar/persistent/index.html

https://bgr.com/2014/07/22/canvas-fingerprinting-internet-tracking-tool/

AFAICS They are using variations in canvas rendering to recognise machines
and browsers, and calling Canvas.ToDataURL to get a BASE64 copy of the
rendering then doing a hash on that.

Regards,

Aaron
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