| Summary: | 碩士 === 國立彰化師範大學 === 數位學習研究所 === 97 === To avoid unauthorized people accessing a system, the keystroke-based authentication (KA) systems combine password knowledge with typing characteristics to verify a user's identity. However, some portable devices have no standard desktop keyboard. This results in reduced system portability, particularly different types of devices between registration and authentication phases. Even different types of computers such as desktop versus notebook, also lead to significantly different typing performance. This thesis employs the rhythm clicked by a mouse as another identifiable factor to authenticate a user. Mouse clicks can be replaced by a stylus on touch screens or numeral buttons on mobile phones. In this thesis, the click data is based on the time instances of pressing and releasing the mouse button, and five features (click duration and four click latencies) are calculated using these data. Twenty-five users participated and a reasonable amount of results shows the rhythm click characteristics are able to function as another identifiable factor in password authentication systems or as the standby identifiable factor in KA systems.
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