Communication system, certificate authority, and method
AssigneeKabushiki Kaisha Toshiba
InventorYasuyuki TANAKA
Life of this patent
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Abstract
A communication system includes a communication device, a terminal device, and a certificate authority. The communication device transmits a certificate signing request to the terminal device, the certificate signing request requesting issuance of a certificate used by the communication device to execute communication with the first server device. The terminal device transmits the certificate signing request transmitted from the communication device to the certificate authority. The certificate authority issues a certificate in response to the certificate signing request transmitted from the terminal device.
Claims19
A communication system, comprising:
- communication circuitry;
- a terminal;
- and
- certificate authority circuitry,
- wherein:
- the communication circuitry includes circuitry configured to transmit a certificate signing request to the terminal, the certificate signing request requesting issuance of a certificate used by the communication circuitry to execute communication with a first server,
- the terminal includes circuitry configured to transmit the certificate signing request transmitted from the communication circuitry to the certificate authority circuitry, and
- the certificate authority circuitry includes circuitry configured to issue the certificate in response to a certificate signing request transmitted from the terminal.
A certificate authority communicably connected to a terminal, the certificate authority comprising:
- a receiver configured to receive a certificate signing request from the terminal when the certificate signing request for requesting issuance of a certificate used for communication circuitry to execute communication with a first server is transmitted from the communication circuitry to the terminal;
- and
- issuing circuitry configured to issue the certificate in response to the received certificate signing request.
A method, comprising:
- transmitting a certificate signing request for requesting issuance of a certificate used by communication circuitry to execute communication with a first server from the communication circuitry to a terminal;
- transmitting, from the terminal to a certificate authority circuitry, the certificate signing request transmitted from the communication circuitry;
- and
- issuing the certificate in response to a certificate signing request transmitted from the terminal.
A method, comprising:
- receiving a certificate signing request when the certificate signing request for requesting issuance of a certificate used for a communication circuitry to execute communication with a first server is transmitted from the communication circuitry to a terminal;
- issuing the certificate in response to the received certificate signing request.
Dependencies are inferred from the claim text.