Patent ID: 7143436

Claim:
A device authentication management system, comprising: an authentication management unit configured to manage a prescribed secret information; and a device configured to acquire the prescribed secret information from the authentication management unit and carry out an authentication in order to carry out communications with another device by using the prescribed secret information; wherein the authentication management unit has: a generation unit configured to generate the prescribed secret information that contains a first authentication information for carrying out communications between the authentication management unit and the device, and a second authentication information for carrying out communications between the device and the another device; a first authentication unit configured to carry out the authentication in order to carry out communications with the device, by using the first authentication information generated by the generation unit; and a first communication unit configured to transmit the second authentication information according to the authentication by the first authentication unit; and the device has: a second authentication unit configured to carry out the authentication in order to carry out communications with the first authentication unit by using the first authentication information acquired in advance from the authentication management unit; and a second communication unit configured to receive the second authentication information from the first communication unit according to the authentication by the second authentication unit.