| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To perform authentication processing only by arithmetic processing in which an authentication side device and an authenticated side device are light in weight. <P>SOLUTION: A first device receives an authentication request from a second device, and when receiving the authentication request, the first device performs access to an authentication station server. Then, when the first device performs access to the authentication station server, the authentication station server issues a disposable one-time certification with signature, and encrypts the one-time certificate by using a common key shared between itself and the first device, and transmits at least the encrypted one-time certificate to the first device. The first device transmits at least the encrypted one-time certificate to the second device, and the second device verifies the signature of the received one-time certificate, and verifies the issue time of the one-time certificate. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
