| 摘要 |
PROBLEM TO BE SOLVED: To provide method and a personal authentication system capable of preventing the forgetfulness of a password, and increasing safety against surreptitious viewing or wiretapping. SOLUTION: This system is provided with a questioning means 421 for presenting any of a plurality of associative word pairs 352, preliminarily set so that a prescribed reference word and associative words associated by a user with respect to the reference word are included, to the user in an arbitrary order and an answering means 422 for enabling the user to enter answer words associated with respect to the presented reference word, so that the operator can be authenticated as being a legitimate user 5. |
