| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that the design concept of online authentication must be changed. <P>SOLUTION: An authentication system 10 includes: a bank settlement server 14 to which first distributed key information is distributed; a designated credit bureau server 16 to which second distributed key information is distributed; a certificate authority server 18 to which third distributed key information is distributed; and an issue authority server 20. The issue authority server 20 generates secret key information from the first, second and third distributed key information acquired from the bank settlement server 14, designated credit bureau server 16 and certificate authority server 18, and when acquiring an issuance request from a user via the Internet 6, sends an OTP based on the secret key information to the user. When acquiring the OTP from the user via the Internet 6, the certificate authority server 18 acquires the first, second and third distributed key information, generates secret key information therefrom, and verifies the OTP acquired from the user on the basis of the generated secret key information. <P>COPYRIGHT: (C)2013,JPO&INPIT |
