There is a function in HTML to biuld bitmap images via HTML5 canvas element. Every computer renders the images differently and this can use to define an hash/id to deanonimize users. The AddThis advertising agency using this feature For example... in youporn!
Some years ago... I was build a javascript that identificate via hash an user: Some characters are displayed into a SPAN element, coosing font-family, size and unicode charaters. It can deanonimize user. In a windows or linux machine you can get ad unique in Intenret and in Tor (the same id). A solution can be to change by a pixer (+1 or -1) the font kerning randomly. _______________________________________________ Tails-dev mailing list [email protected] https://mailman.boum.org/listinfo/tails-dev To unsubscribe from this list, send an empty email to [email protected].
