| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To distribute a content and to manage the right of the content, by a method of high cost efficiency. <P>SOLUTION: The system is provided with an application device AD and a smart card access device 22 which accesses a smart card 20, and the system is operable to safely communicate content access data to the smart card 20 via a communication network by encrypting the content access data by using a key KC which is preliminarily stored in the smart card 20 and is known to a trusted server TS, and the smart card 20 decrypts the content access data encrypted by using the key KC, and the system is operable to store the content access data in the smart card 20. In the server TS, a trusted player accesses right management data provided with content access data of the smart card 20 to perform reproduction or the like of the content in accordance with the right management data. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
