Panasonic Intellectual Property Management Co., Ltd.

Kenji Kuramae

Masao Akimoto

Yoichi Masuda

An information processing system includes: an information terminal; a first management device; and a control device. The information terminal receives a server certificate from the first management device. The control device includes: a storage in which a root certificate including a second public key is stored; a communicator that receives the server certificate from the information terminal; and a controller that verifies a signature included in the server certificate received, using the second public key included in the root certificate stored in the storage, and lifts the restriction imposed by a first device when the signature is successfully verified.

Information processing system and information processing method

The communication system is a communication system including a management communication apparatus, a first communication apparatus, and a second communication apparatus. The first communication apparatus is capable of communicating using a plurality of Internet Protocol (IP) addresses in different versions from each other, and includes a first communication unit configured to notify the management communication apparatus of a first IP address among the plurality of IP addresses in a first authentication process for entering the communication system, and to notify the management communication apparatus of a second IP address among the plurality of IP addresses after the first authentication process, the first authentication process being performed between the first communication apparatus and the management communication apparatus.

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Kanagawa, Japan

Kenji Kuramae