| 摘要 |
PROBLEM TO BE SOLVED: To perform user authentication in which higher security is ensured.SOLUTION: An authentication device 2 that performs authentication based on a secret code number comprises: storage means 23 that stores a registered pattern indicating the position of at least one selected button in a button arrangement table in which a plurality of buttons are arranged; and authentication means 21 that receives input information indicating the position of each button input to the button arrangement table transmitted from a terminal 1, and authenticates whether the received input information matches the registered pattern registered in the storage means 23. |
