Encryption device and encryption method

摘要

An encryption device includes an encryption/decryption circuit (42) for encrypting and decrypting data with a secret key (61). A non-volatile memory (43) is connected to the encryption/decryption circuit (42) to store the secret key (61) in an encrypted state (45). The encryption/decryption circuit (42) receives the encrypted secret key (45) from the non-volatile memory (43) and decrypts the encrypted secret key to generate the secret key (61).