Encryption key updating system, encryption key updating method and encryption key update program

摘要

Provided is an encryption key update system capable of updating an encryption key when there is a risk of leakage of the encryption key and the risk of leakage of the updated encryption key is eliminated. The update determining means 92 determines whether or not the device is a key update target device that requires updating of the encryption key, based on the information acquired from the device and the information acquired from the vulnerability information collecting means 91. .. The vulnerability countermeasure completion determination means 93 determines whether or not the countermeasure against the vulnerability of the application mounted on the device has been completed. The update determination means 92 determines that the device is a key update target device, and further, when the vulnerability countermeasure completion determination means 93 determines that the countermeasures against the application vulnerabilities have been completed, the encryption key of the device is used. Update.