Keystroke Dynamics based User Authentication with Autoassociative MLP

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Password checking is the most popular user authentication method. The keystroke dynamics can be combined to result in a more secure system. We propose an autoassociator multilayer perceptron which is trained with the timing vectors of the owner's keystroke dynamics and then used to discriminate between the owner and an imposter. An imposter typing the correct password can be detected with a very high accuracy using the proposed approach. The approach can also be used over the internet such as World Wide Web when implemented using a Java applet.