| 摘要 |
PROBLEM TO BE SOLVED: To obtain a single log in using a portable medium in an enterprise information system by sending user identification information from the portable medium when access is allowed and making the portable medium ineffective when access is not allowed. SOLUTION: An authentication client 22 is provided on the client side to perform an authenticating process using log-in information (certificate, user identification information, etc.). When the user fits the portable medium 700 to a portable medium reader 705, an authentication information input picture is displayed, and a password or biological information on a fingerprint, the retina, etc., is confirmed to judge whether access is allowed or not. When it is judged that the user 11 is the regular user 11, a single log-in process is performed as to a task authenticating process. When not, the portable medium 70 is made ineffective by using the open key of the authentication client 22 and a note showing that the access is not allowed is sent to the user 11. |
