Evaluation of a biometric keystroke typing dynamics computer security system.
Lind, Judith H.
Poock, Gary K.
Boger, Dan C.
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This study evaluates an inexpensive personal computer access control system that relies on biometric keystroke typing dynamics technology, BioPassword Model 2100 (BioPassword). Enrollment time, verification time, false rejection error rate, false acceptance error rate, and user acceptance were evaluated for this system. The results show that BioPassword provides multilayer security through the inclusion of privilege control, audit functions, passwords, and verification of a personal behavioral characteristic, the rate and variation of typing a given password string. Enrollment and verification times were considered satisfactorily fast. Overall false rejection error rate was 22.5%, while false acceptance error rate was 3.4%. The false rejection error rate for acceptance as a function of trial number from one trial to five trials were 4. 4%, 1.4%, O.7%, O.4%, andO.3% respectively. These values were achieved under relatively uncontrolled conditions and should be improved on by using recommendations that are included. Users generally reported satisfaction with the system, which should be acceptable as part of an office automation system when used in conjunction with other standard security measures. BioPassword Model 21 00, Biometric technology, Keystroke Typing Dynamics, False Rejection Error Rate, False Acceptance Error Rate, Enrollment Time, Verification Time
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