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SwiPIN: Fast and secure PIN-entry on smartphones

: Zezschwitz, E. von; Luca, A. de; Brunkow, B.; Hussmann, H.


Kim, J. ; Association for Computing Machinery -ACM-:
CHI 2015 crossings. Proceedings of the 33rd Annual CHI Conference on Human Factors in Computing Systems, CHI 2015 : April 18 - 23, 2015, Seoul, Republic of Korea
New York: ACM, 2015
ISBN: 978-1-4503-3145-6
Conference on Human Factors in Computing Systems (CHI) <33, 2015, Seoul>
Conference Paper
Fraunhofer FKIE ()

In this paper, we present SwiPIN, a novel authentication system that allows input of traditional PINs using simple touch gestures like up or down and makes it secure against human observers. We present two user studies which evaluated different designs of SwiPIN and compared it against traditional PIN. The results show that SwiPIN performs adequately fast (3.7 s) to serve as an alternative input method for risky situations. Furthermore, SwiPIN is easy to use, significantly more secure against shoulder surfing attacks and switching between PIN and SwiPIN feels natural.