A machine learning approach to keystroke dynamics based user authentication

Revett, Kenneth, Gorunescu, Florin, Gorunescu, Marina, Ene, Marius, Tenreiro de Magalhaes, Sergio and Dinis Santos, Henrique M. (2007) A machine learning approach to keystroke dynamics based user authentication. International Journal of Electronic Security and Digital Forensics, 1 (1). pp. 55-70. ISSN 1751-911X

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Official URL: http://dx.doi.org/10.1504/IJESDF.2007.013592


The majority of computer systems employ a login ID and password as the principal method for access security. In stand-alone situations, this level of security may be adequate, but when computers are connected to the internet, the vulnerability to a security breach is increased. In order to reduce vulnerability to attack, biometric solutions have been employed. In this paper, we investigate the use of a behavioural biometric based on keystroke dynamics. Although there are several implementations of keystroke dynamics available, their effectiveness is variable and dependent on the data sample and its acquisition methodology. The results from this study indicate that the Equal Error Rate (EER) is significantly influenced by the attribute selection process and to a lesser extent on the authentication algorithm employed. Our results also provide evidence that a Probabilistic Neural Network (PNN) can be superior in terms of reduced training time and classification accuracy when compared with a typical MLFN back-propagation trained neural network.

Item Type: Article
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 09 Jan 2008
Last Modified: 16 Oct 2009 09:48
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/4577

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