Keystroke Dynamics - Android platform

Number of subjects: 42 (24 male, 18 female)
Password: .tie5Roanl
Keys: . t i e [123?] 5 [abc] [Shift] R [Shift] o a n l
Number of samples/subject: 51
Number of sessions: at least 2 sessions/user
Devices: 37 subjects - Nexus 7 tablet, 5 subjects - Mobil LG Optimus L7 II P710 (user ids: 6, 7, 8, 9, 10)

Feature name	Explanation	Number of features
Key hold time (H)	Time between key press and release	14
Down-down time (DD)	Time between consecutive key presses	13
Up-down time (UD)	Time between key release and next key press	13
Key press pressure (P)	Pressure at the moment of key press	14
Finger area (FA)	Finger area at the moment of key press	14
Average hold time (AH)	Average of key hold times	1
Average finger area (AFA)	Average of finger areas	1
Average pressure (AP)	Average of key pressures	1

Margit ANTAL, László Zsolt SZABÓ (2015), An evaluation of one-class and two-class classification algorithms for keystroke dynamics authentication on mobile devices, Proceedings of the 20th International Conference on Control Systems and Computer Science, 27-29 MAY 2015, Faculty of Automatic Control and Computers, University "Politehnica" of Bucharest, Romania, CSCS20, pp. 343-350. [Link]
Margit ANTAL, László Zsolt SZABÓ, Izabella LASZLO (2014), Keystroke Dynamics on Android Platform, Proceedings of the 8th International Conference Interdisciplinarity in Engineering, INTER-ENG 2014, 9-10 October 2014, Tirgu Mures, Romania, pp. 820-826. [Link] [Paper] [Presentation]
ANTAL Margit, László Zsolt SZABÓ, LASZLO Izabella (2014), Billentyuzesi ritmus alapu azonositas es hitelesites erintokepernyos mobileszkozokon, XXIV. Nemzetkozi szamitastechnika es oktatasi konferencia, SZAMOKT, 2014. oktober 9-12., Szekelyudvarhely, Romania, pp. 131-136. [Paper] [Presentation]