Versus71 Posted January 26, 2014 Report Share Posted January 26, 2014 Touch screens are an increasingly common feature on personal computing devices, especially smartphones, where size and user interface advantages accrue from consolidating multiple hardware components (keyboard, number pad, etc.) into a single software definable user interface. Oily residues, or smudges, on the touch screen surface, are one side effect of touches from which frequently used patterns such as a graphical password might be inferred.In this paper we examine the feasibility of such smudge attacks on touch screens for smartphones, and focus our analysis on the Android password pattern. We first investigate the conditions (e.g., lighting and camera orientation) under which smudges are easily extracted. In the vast majority of settings, partial or complete patterns are easily retrieved. We also emulate usage situations that interfere with pattern identification, and show that pattern smudges continue to be recognizable. Finally, we provide a preliminary analysis of applying the information learned in a smudge attack to guessing an Android password pattern.Link:http://static.usenix.org/events/woot10/tech/full_papers/Aviv.pdf Quote Link to comment Share on other sites More sharing options...
joetunna Posted February 19, 2014 Report Share Posted February 19, 2014 Nu functioneaza .... Quote Link to comment Share on other sites More sharing options...
