An Exploration of Keystroke Dynamics Authentication Using Non-fixed Text of Various Length

User authentication is an important problem for any restricted access computer system, especially with remote access. Constant spread of Internet makes efficient remote authentication a pressing issue with remote interaction providing additional difficulties. Authentication methods based on most biometrics techniques mostly require dedicated hardware that is unhandy for remote applications. Keystroke dynamics however requires uniquely dedicated software and no indispensable dedicated hardware. The approach proposed by the authors in this paper is aimed at efficient user authentication with keystroke dynamics using non-fixed text of various size. We have tested the approach on a small group of individuals, with data gathered in various ways: over Internet using browser-based WWW application and on local machines using dedicated applications. The obtained results cans be used as indication for future keystrokes database creation.

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