An Authentication Method Combining Spatiotemporal Information and Actions
Masateru Tsunoda, Kohei Mitsui, Kyohei Fushida, Yasutaka Kamei, Masahide Nakamura, Keita Goto, Ken‐ichi Matsumoto · 2008
We propose a new authentication method combining actions and spatiotemporal information such as location, elapsed time, and travel distance. To be authenticated, a user performs certain actions at certain intervals defined with spatiotemporal information. For example, a user is authenticated when he/she pushes a button 5 times while going from point A to point B, pushes it 3 times while going from point B to point C, and pushes it 1 time while going from point C to point D. The proposed method is suitable for users who enter important places such as a secret data storage room, or a nuclear power plant. The advantage of the proposed method is high security. It is very difficult for others to recognize a moving user’s actions and intervals defined with spatiotemporal information. We experimented to confirm the feasibility of the proposed method, and the results showed that the proposed method can be used for authentication.