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User dynamics in graphical authentication systems

Revett, Kenneth and Jahankhani, Hamid and Tenreiro de Magalhaes, Sergio and Santos, Henrique M.D. (2008) User dynamics in graphical authentication systems. In: Jahankhani, Hamid and Revett, Kenneth and Palmer-Brown, Dominic, (eds.) Global e-security: 4th International Conference, ICGeS 2008, London, UK, June 23-25, 2008. Proceedings. Communications in computer and information science (12). Springer, Berlin / Heidelberg, pp. 173-181. ISBN 9783540694021

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Official URL: http://dx.doi.org/10.1007/978-3-540-69403-8_21


In this paper, a graphical authentication system is presented which is based on a matching scheme. The user is required to match up thumbnail graphical images that belong to a variety of categories – in an order based approach. The number of images in the selection panel was varied to determine how this effects memorability. In addition, timing information was included as a means of enhancing the security level of the system. That is, the user’s mouse clicks were timed and used as part of the authentication process. This is one of the few studies that employ a proper biometric facility, namely mouse dynamics, into a graphical authentication system. Lastly, this study employees the use of the 2-D version of Fitts’ law, the Accot-Zhai streering law, which is used to examine the effect of image size on usability. The results from this study indicate that the combination of biometrics (mouse timing information) into a graphical authentication scheme produces FAR/FRR values that approach textual based authentication schemes.

Item Type:Book Section
Research Community:University of Westminster > Electronics and Computer Science, School of
ID Code:7193
Deposited On:12 Jan 2010 13:25
Last Modified:19 Oct 2011 10:18

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