NomadiKey: User authentication for smart devices based on nomadic keys

Leonardo Cotta, Artur Luis Fernandes, Leandro T. C. Melo, Luiz Felipe Z. Saggioro, Frederico Martins, Antonio L. Maia Neto, Antonio A. F. Loureiro, Italo Cunha, Leonardo B. Oliveira
2016 2016 IEEE International Conference on Communications (ICC)  
The growing importance of smart devices calls for effective user authentication mechanisms. We argue that stateof-the-art authentication mechanisms are either vulnerable to known attacks or do not meet usability needs. To address this problem we designed NomadiKey, a user-to-device authentication mechanism based on nomadic keyboard keys. NomadiKey increases security level by placing keys at different screen coordinates each time NomadiKey is activated. Besides, NomadiKey preserves usability by
more » ... aintaining the traditional relative position of keys. We compare NomadiKey with other user authentication mechanisms under different attacks using statistical models and simulation. We also evaluate NomadiKey's usability with 18 users. Our results show that NomadiKey increases security compared to widely-deployed PIN authentication with limited impact on authentication times.
doi:10.1109/icc.2016.7511425 dblp:conf/icc/CottaFMSMNLCO16 fatcat:ds6xrgzdlrh5vnpxjb5vyvalbq