| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an authentication device and an authentication system releasing locked personal identification information with simple and greatly ensured security. <P>SOLUTION: This authentication device is provided with a personal information storage means storing individual personal identification information associated with electronic mail addresses of respective registered users, a personal identity authentication means authenticating the personal identity of the registered user, and a lock releasing information creation means creating lock releasing information releasing prohibition individually when the use of the personal identification information is prohibited. The authentication device is also provided with an electronic mail communication means which transmits a lock notification mail carrying a communication address of the lock releasing information and lock releasing identification information at least to the electronic mail address matching the personal identification information, and a lock releasing means receiving access to the communication address of the lock releasing information and performing authentication based on the received lock releasing identification information for releasing the prohibition of the disabled personal identification information. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
