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Visual passwords on community photo collections

: Koch, Sebastian
: Goesele, Michael; Katzenbeisser, Stefan

Darmstadt, 2009, 44 S.
Darmstadt, TU, Bachelor Thesis, 2009
Bachelor Thesis
Fraunhofer IGD ()
community photo collection; feature; feature matching; authentication

In this bachelor thesis we propose a new form of user authentication based on images. We present a system in which a user logs in by clicking on a sequence of specific points in an image. In contrast to earlier work the user is not presented the same picture every time he logs in. He sees a new random picture showing the same object from a different viewing angle and in a changed illumination. We present an analysis of the security of the system. We further present a user study showing the usability of the system. Participants used the system to create an own password and to login with their password.