| 摘要 |
PROBLEM TO BE SOLVED: To provide an authentication device where authentication information can be input without imposing a burden on a user, and even when a user inputs the huge authentication information for securing advanced security, the user has only to memorize one part of the huge authentication information.SOLUTION: In a state where an arrangement status of a designated part in an information arrangement area is preliminarily set in a reference authentication information memory 3c as reference information for partial authentication, when an operation where authentication information is arranged and input in the information arrangement area is performed, a CPU 1 detects the arrangement status of the designated part from an entire arrangement state in the information arrangement area, and performs, as partial authentication, a process of collating the detected arrangement status of the designated part with the arrangement status of the designated part set as the reference information for partial authentication. |
