| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an authentication method capable of properly coping with an abnormal state. <P>SOLUTION: This authentication control method includes: an abnormal level specification step for specifying an abnormal level from a context related to abnormality previously collected and stored in a context storage part according to abnormal level reference data previously stored in an abnormal level reference data storage part; and a setting step for converting the abnormal level into an authentication intensity level according to a predetermined authentication intensity level setting rule, and making an authentication server execute authentication processing according to the authentication intensity level. Thereby, the authentication server is made to execute authentication of the authentication intensity level according to the abnormal state. That is, the dynamic authentication according to the abnormal state is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
