| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a configuration for performing rigorous validity check of a player to execute processing of a content code. <P>SOLUTION: A secure VM executing content reproduction acquires a content code recorded on an information recording medium, and executes processing, e.g. security check according to the content code, conversion of content data, embedding of player information in the content. Furthermore, the secure VM executes digital signature generation processing by applying a secret key set for each player to the configuration data of a content code, and executes verification processing for the digital signature by applying a public key set for each player when the data processing program in the content code is executed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
