ACCESS QUALIFICATION AUTHENTICATION DEVICE AND ITS METHOD

摘要

PROBLEM TO BE SOLVED: To relieve the load derived from handling lots of specific information such as authentication keys on both the user side and the protect side such as an application author. SOLUTION: An access ticket generator 12 generates an accessticket from user specific information and characteristic information of access qualification authentication. A user qualification data generator 11 receivers an access ticket and converts authentication data received from a qualification data certification device 10 into the authentication data by using the access ticket and the user specific information and returns the authentication data to the qualification data certification device 10. The qualification data certification device 10 certificates the qualification data by using an expected value or the like stored in itself.