INDIVIDUAL IDENTIFICATION METHOD FOR ON-LINE SERVICE AND ON-LINE SERVICE PROVIDING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an individual identification method capable of preventing 'impersonation' in an on-line service by executing individual identification in a random timing.;SOLUTION: An on-line server 10 is connected through an Internet 12 to a user 14. This on-line server 10 is provided with a timing generating means 20 and an individual identification means 22. The timing generating means 20 generates a timing in which individual authentication is executed at random. This individual identification means 22 executes individual identification at random timing. Therefore, the user 14 can not predict the timing in which the individual identification is executed. Thus, it is extremely difficult that a third parson receives the provision of the service instead of the user himself or herself, that is, it is possible to effectively prevent the 'impersonation'.;COPYRIGHT: (C)2001,JPO