| 摘要 |
PROBLEM TO BE SOLVED: To change authentication types in each prescribed group such as a homepage content by providing an authentication allowance information storing part in which an access control ID and an authentication type are associated and stored. SOLUTION: In an authentication server part 112, an authentication deciding part 115 receives authentication information, an access control ID and an authentication client ID transmitted from an authentication client part 110 and detects an authentication type corresponding to a user ID, the access control ID and the authentication client ID included in the authentication information from an authentication allowance information storing part 114. The part 114 stores authentication allowance information obtained by making the access control ID correspond to the authentication type used for authentication processing. Grouping is performed by combining the user ID, the authentication client ID and the access control ID, and authentication types can be changed in accordance with the group. |
