Nippon Telegraph and Telephone Corporation

Yokogawa Electric Corporation

Hideo Nishimura

Takao Yamashita

Yasuhiko Yoshimura

Satoru Furukawa

Yoshihiko Omori

To provide a terminal registration system and a terminal registration method for improving user convenience in registration of a new terminal to a plurality of service sites. The registered terminalincludes an Authenticatorincluding service site list informationthat associates private keys and URLs for access to service sites with each other. A Registration Manageracquires the service site list informationfrom the Authenticatorof the registered terminal. Then, the Registration Managerperforms FIDO authentication for a registration target service site using a private key of the registered terminal, on the basis of the acquired service site list information, and performs Registration of a newly generated cryptographic key at the new terminal

Terminal registration system and terminal registration method

[Problem] Provided is an authorization system capable of reducing a load on a host regarding an invitation procedure in a case where there is a large number of guests or guests are frequently invited, and preventing identity theft or invitation of an unwanted third party. [Solution] In an authorization systemX, a representative guest terminalA acquires information about non-representative guest terminalsB andC from the non-representative guest terminalB andC, a host terminalH acquires and verifies signed information about the terminalsA,B, andC from the representative guest terminalA, and a management serveracquires and verifies the information about the host terminalH and the signed information about the terminalsA,B, andC from the host terminalH, performs authentication based on information about the host terminalH registered in advance, registers the information about the terminalsA,B, andC, when the authentication is successful, acquires and performs authentication on information about the terminalsA,B, andC from a smart lock, and unlocks the smart lockbased on a result of the authentication.

Authorization system and authorization method

[Problem] To provide a terminal registration system and a terminal registration method for improving user convenience in registration of a new terminal to a plurality of service sites. [Solution] The registered terminalincludes an Authenticatorincluding service site list informationthat associates private keys and URLs for access to service sites with each other. A Registration Manageracquires the service site list informationfrom the Authenticatorof the registered terminalThen, the Registration Managerperforms FIDO authentication for a registration target service site using a private key of the registered terminalon the basis of the acquired service site list informationand performs Registration of a newly generated cryptographic key at the new terminal

A plant system includes: an access node connected to a network; a plurality of controllers configured to perform distributed control on a plurality of field devices provided in a plant; and a wireless communication unit provided in each group of a plurality of groups into which the plurality of controllers are grouped and connected to each controller in the corresponding group via a wired connection, and configured to connect each controller to the access node via a wireless connection.

Plant system and method

[Problem] A terminal registration system and a terminal registration method that enable the number of communication operations between terminals to be reduced are provided. [Solution] The terminal registration systemincludes an existing terminal Aincluding, in a secure area including a TEE, a certificate issuing unitconfigured to issue an owner certificate indicating the owner of the terminal, an existing terminal-side coordination unitconfigured to coordinate terminals having an owner certificate identical to the issued owner certificate and generate a cryptographic key, an authentication key management unitconfigured to manage an authentication private key, and including, in a terminal environment including an REE, an inter-terminal coordination appconfigured to perform inter-terminal communication, a new terminal Bmakes a request for starting encrypted communication using a cryptographic key to the existing terminal Afrom an inter-terminal coordination appon the new terminal Bside, and the existing terminal-side coordination unitof the existing terminal Asends coordination data with the authentication private key encrypted with the cryptographic key to the new terminal Bhaving the identical owner certificate.

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Tokyo, Japan

Hideo Nishimura