| 摘要 |
PROBLEM TO BE SOLVED: To provide an authentication device capable of performing such high-level controls that an authentication application itself made by a user having attempted illegal intrusion in another authentication system is rejected, and that a connection destination to be permitted is changed according to a user.SOLUTION: User authentication is accepted when terminal information from a first user terminal of a user, which is obtained as connection application information, and connection application information of a second user terminal, in which terminal information of the first user terminal is written, are received and they coincide with each other. Terminal information of a terminal at which authentication is failed, and the number of failures are collected in a blacklist, and shared with another network authentication device. Also, a second authentication device or a second authentication part is provided otherwise than the above-described user authentication, and a connection authority of each user is confirmed on the basis of a result of a second authentication so as to perform control of a connection destination. |
