E-voting authentication with QR-codes

S. Falkner, P. Kieseberg, D. Simos, C. Traxler, E. Weippl:
"E-voting authentication with QR-codes";
Vortrag: HCI International Conference 2014, Kreta; 22.06.2014 - 27.06.2014; in:"Proceedings of the 2nd International Conference on Human Aspects of Information Security, Privacy, and Trust", Springer, Switzerland (2014), ISBN: 978-3-319-07731-4; S. 149 - 159.

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In this paper we propose an e-voting authentication scheme
combined with QR-codes and visual cryptography. We focus on the us-
ability, in order to supply voters with less technical experience with a usable scheme. The only requirement is that the user needs to handle a device containing a QR-code reader, most probably a smartphone.
This approach is based on visual cryptography as the work horse: The
e-voting passwords for authentication are encoded as QR-codes and later encrypted into shadow transparencies. Thus, the transparency by itself conveys no information but when the layers are combined, the secret password is revealed.