Continuous and non-intrusive identity verification in real-time environments based on free-text keystroke dynamics
Messerman, Arik, Mustafic, Tarik, Camtepe, Seyit A., & Albayrak, Sahin (2011) Continuous and non-intrusive identity verification in real-time environments based on free-text keystroke dynamics. In Proceedings of the 2011 International Joint Conference on Biometrics IJCB '11, IEEE Conference Publications , Washington, D.C., pp. 1-8.
Internet services are important part of daily activities for most of us. These services come with sophisticated authentication requirements which may not be handled by average Internet users. The management of secure passwords for example creates an extra overhead which is often neglected due to usability reasons. Furthermore, password-based approaches are applicable only for initial logins and do not protect against unlocked workstation attacks. In this paper, we provide a non-intrusive identity verification scheme based on behavior biometrics where keystroke dynamics based-on free-text is used continuously for verifying the identity of a user in real-time. We improved existing keystroke dynamics based verification schemes in four aspects. First, we improve the scalability where we use a constant number of users instead of whole user space to verify the identity of target user. Second, we provide an adaptive user model which enables our solution to take the change of user behavior into consideration in verification decision. Next, we identify a new distance measure which enables us to verify identity of a user with shorter text. Fourth, we decrease the number of false results. Our solution is evaluated on a data set which we have collected from users while they were interacting with their mail-boxes during their daily activities.
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|Item Type:||Conference Paper|
|Additional Information:||The proceedings of this conference will be available for purchase through Curran Associates.|
|Keywords:||biometrics, text analysis, biometrics behavior, free text keystroke dynamics, nonintrusive identity verification|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > COMPUTER SOFTWARE (080300) > Computer System Security (080303)|
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Past > Institutes > Information Security Institute
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2011 please consult the authors|
|Deposited On:||15 Mar 2013 01:27|
|Last Modified:||12 Jun 2013 15:37|
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