| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for upgrading content encryption.SOLUTION: Generation of secret keys is carried out in a smart card for use by a receiver device's main processor, or alternatively, decryption processing for selectively encrypted content is carried out in the smart card itself in order to prevent hacking and infringement of protected video content. This abstract is not to be considered limiting, since other embodiments may deviate from features described in this abstract. |
