CONTROLLER EMBEDDED IN RECORDING MEDIUM DEVICE, RECORDING MEDIUM DEVICE, RECORDING MEDIUM DEVICE MANUFACTURING SYSTEM, AND RECORDING MEDIUM DEVICE MANUFACTURING METHOD

摘要

The present invention is a controller capable of preventing card makers from conducting unauthorized acts. The controller includes: a controller key storage unit 511 configured to hold a controller key that has been generated by a controller manufacturing device in advance; a decryption unit 522 configured to receive encrypted media key information that has been generated by a key issuance center that is authorized and to decrypt the received encrypted media key by using the controller key, the encrypted key information generated through encryption of key information with use of the controller key; and an encryption unit 526 configured to encrypt the decrypted media key again by using an individual key that is unique to the controller.