Patent ID: 11917076
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A terminal registration system, comprising one or more computers, in which a plurality of terminals performing Fast IDentity Online (FIDO) authentication using private keys are communicatively connected to a service site utilized by the plurality of terminals, and a new terminal is registered on a plurality of service sites using a registered terminal, the registered terminal including service site list information that associates the private keys and uniform resource locators (URLs) for access to the plurality of service sites with each other in an Authenticator, the terminal registration system comprising a registration function unit configured to:
acquire the service site list information to perform FIDO authentication for a registration target service site using a private key of the registered terminal, based on the service site list information;
perform Registration of a cryptographic key newly generated at the new terminal; and
acquire the service site list information from the Authenticator of the registered terminal to perform FIDO authentication to log in to each service site using the registered terminal as an external Authenticator by a client to authenticator protocol (CTAP), based on the service site list information,
wherein the registration function unit is located on a side of the new terminal, and
wherein the new terminal performs the Registration related to Authenticator of the new terminal in an established session.