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Keyboard Dependency of Personal Identification Performance by Keystroke Dynamics in Free Text Typing

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DOI: 10.4236/jis.2015.63023    4,135 Downloads   4,848 Views  

ABSTRACT

We have proposed some methods for feature extraction and identification that enable identification of individuals through long-text input as an important topic in keystroke dynamics research. As to the robustness in practical circumstances, there exists a question on the keystroke dynamics how much the recognition accuracy is influenced by the change of keyboard. By comparing the performance in the cases of using the same keyboard and different keyboards, the dependencies on keyboards are evaluated through three implemented experiments for subjects. As a result, it is found that we do not need to worry about the keyboard difference for users whose typing skills reach high level with about 900 or more letters in 5 minutes, and only for the remaining users it would be necessary to register their profile data with respect to each keyboard they use in order to avoid recognition accuracy degradation.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Matsubara, Y. , Samura, T. and Nishimura, H. (2015) Keyboard Dependency of Personal Identification Performance by Keystroke Dynamics in Free Text Typing. Journal of Information Security, 6, 229-240. doi: 10.4236/jis.2015.63023.

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