| 摘要 |
<P>PROBLEM TO BE SOLVED: To make a service server acquire user information necessary for providing a service without receiving authentication, and validly exclude the leakage of the user information. <P>SOLUTION: A service server 13 is provided with an authentication information acquiring function for acquiring authentication information of the user of a client 10 from an authentication server 11 in response to a service request from the client 10. The service server 14 is provided with a privacy information acquiring function for acquiring privacy information of the user from an attribute server by using the authentication information acquired by the service server 13. <P>COPYRIGHT: (C)2008,JPO&INPIT |
