Unauthorized connection detecting device, unauthorized connection detecting system, and unauthorized connection detecting method

摘要

An unauthorized connection detecting device which detects an unauthorized charge/discharge device includes: a time information obtaining unit obtaining, as time information, information from a first charge/discharge device, the information indicating at least one of an issuing date of a first certificate which is a public key certificate and an issuing date of a certificate revocation list held by the first charge/discharge device; an expiration date obtaining unit obtaining expiration date information from a second charge/discharge device, the expiration date information indicating an expiration date of a second certificate which is a public key certificate held by the second charge/discharge device; and an unauthorization detecting unit detecting whether or not the second charge/discharge device is the unauthorized charge/discharge device by comparing the time information with the expiration date information.

主权项

1. An unauthorized connection detecting device which detects whether or not a charge/discharge device connected to the unauthorized connection detecting device is an unauthorized charge/discharge device, the charge/discharge device being included in charge/discharge devices for charging or discharging a secondary battery with power, and the unauthorized connection detecting device comprising:
a non-transitory memory storing a program; and a hardware processor configured to execute the program and cause the unauthorized connection detecting device to operate as: a time information obtaining unit configured to obtain, as time information, information from a first charge/discharge device when the unauthorized connection detecting device is connected to the first charge/discharge device, the information indicating at least one of (i) an issuing date of a first certificate which is a public key certificate held by the first charge/discharge device for authentication and (ii) an issuing date of a certificate revocation list including revoked public key certificates and held by the first charge/discharge device, and the first charge/discharge device being included in the charge/discharge devices; an expiration date obtaining unit configured to obtain expiration date information from a second charge/discharge device when the unauthorized connection detecting device is disconnected from the first charge/discharge device and is connected to the second charge/discharge device, the expiration date information indicating an expiration date of a second certificate which is a public key certificate held by the second charge/discharge device for authentication, the second charge/discharge device being different from the first charge/discharge device and the second charge/discharge device being included in the charge/discharge devices; and an unauthorization detecting unit configured to detect whether or not the second charge/discharge device is the unauthorized charge/discharge device by comparing the time information of the first charge/discharge device with the expiration date information of the second charge/discharge device.