| 摘要 |
An information processing apparatus which updates a basic software package (21) is disclosed. The information processing apparatus includes an encryption and decryption unit (5) which stores values calculated uniquely from software (20, 21, and 22) and encrypts information based on the calculated values and decrypts encrypted information based on the calculated values. The basic software package (21) includes a firmware authenticating module for authenticating a firmware updating file (110) which includes new software (82) for updating the basic software package (21), a value (83) uniquely calculated from the new software (82), and a public key signature (84). The information processing apparatus further includes a software updating module which updates the basic software package (21) by using the authenticated firmware updating file (110), and an encryption key managing module for encrypting again the information (70) encrypted by the values based on a value changed by updating the basic software package (21). |
