Digital signatures to increase security of 2D barcode ticketing systems

Supervisor(s)Dr. Markus Riek


2D barcodes, displayed on smartphones, are increasingly used as a “paperless” replacement for various travel or entertainment tickets. This thesis should analyze the applicability of digital signatures to increase the security of these ticketing systems from the perspective of the ticket issuer. The student should develop a mobile prototype which is able to create and verify digital signatures on 2D barcodes.


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  • Krombholz, K., Frühwirt, P., Kieseberg, P., Kapsalis, I., Huber, M., and Weippl, E. QR Code Security: A Survey of Attacks and Challenges for Usable Security. In T. Tryfonas and I. Askoxylakis, eds., Human Aspects of Information Security, Privacy, and Trust. Lecture Notes in Computer Science 8533, Springer, Berlin Heidelberg, 2014, pp. 79–90.