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User identification within biometric analysis      

We try to ascertain user identity through the way individuals type on a computer keyboard. Using an original method able to compute the ''distance'' between two typing samples, we were able to reach an accuracy of less than 4% of false alarms and of less than 0.01% of unspotted impostors, for typing samples of fixted text long about 700 characters. We are now working of the extension of our application to completely free text, that is, text chosen and entered by the users because of their normal job. This will allow us to monitor individuals that have already passed the authentication phase and are using a computer. Individual showing typing habits different by those described in the profile of the account they are using will in this way be identified as potential intruders.

Papers (selection)  

D. Gunetti, C. Picardi and G. Ruffo. Dealing with Different Languages and Old Profiles in Keystroke Analysis of Free Text. In S. Bandini, editor, Proc. of the Nineth Congress of the Italian Association for Artificial Intelligence (AI*IA-2005), Milan, Italy. LNCS 3673, pages 347-358, Springer-Verlag, 2005.

D. Gunetti and C. Picardi. Keystroke Analysis of free Text. ACM Transactions on Information and System Security (ACM TISSEC), 8(3), 2005. Pages 312-347.

D. Gunetti, C. Picardi and G. Ruffo Keystroke Analysis of Different Languages: a Case Study In A. F. Famili, J. N. Kok, J. M. Pena, A. Siebes, A. Feelders, editors. Proc. of the Sixth Symposium on Intelligent Data Analysis (IDA 2005) pages 133-144. Madrid, Spain. LNCS 3646, Springer-Verlag, 2005.

F. Bergadano, D. Gunetti and C. Picardi. Identity Verification through Dynamic Keystroke Analysis. (IDA), 7(5), 2003

F. Bergadano, D. Gunetti and C. Picardi. User Authentication through Keystroke Dynamics. ACM Transactions on Information and System Security (ACM TISSEC), 5(4), 2002

D. Gunetti and G. Ruffo. Intrusion Detection through Behavioural Data. In J. N. Kok, editor, Proc. of the Third Symposium on Intelligent Data Analysis (IDA-99), LNCS, Springer-Verlag, 1999.

Software and Links  

More info? Contact person is Daniele Gunetti: gunetti[at]di.unito.it

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