Patent ID: 11956238
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  E  G | IPC E  H

Claim 0:
1. An authorization system comprising:
a non-representative guest terminal;
a representative guest terminal;
a host terminal;
a management server; and
a smart lock, wherein
the representative guest terminal is configured to acquire information about the non-representative guest terminal from the non-representative guest terminal, and when a representative guest confirms information about a non-representative guest, sign information about the representative guest terminal and the information about the non-representative guest terminal acquired,
the host terminal is configured to acquire information about the representative guest and the information about the representative guest terminal and the information about the non-representative guest terminal that are signed from the representative guest terminal, verify the information about the representative guest terminal and the information about the non-representative guest terminal that are signed when a host confirms the information about the representative guest, and sign the information about the representative guest terminal and the information about the non-representative guest terminal that are proven to be authentic by the verification,
the management server is configured to acquire from the host terminal, information about the host terminal and the information about the representative guest terminal and the information about the non-representative guest terminal that are signed, verify the information about the representative guest terminal and the information about the non-representative guest terminal that are signed, perform authentication based on the information about the host terminal acquired and information about the host terminal registered in advance when the information is proven to be authentic by the verification, and register the information about the representative guest terminal and the information about the non-representative guest terminal when the authentication is successful, and
the management server is configured to acquire information about a terminal from the smart lock, perform authentication based on the information about the representative guest terminal and the non-representative guest terminal registered and the information about the terminal acquired from the smart lock, and unlock the smart lock depending on a result of the authentication.