| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to perform N-th degree use by editing, duplicating contents having a copyright, etc., while taking problems into consideration. SOLUTION: A distribution contents registration client 1 attaches right data to manufactured contents, makes the contents secret and transmits the contents to a management server 2 through a network. The server 2 releases the transmitted contents and the secret of the right data and respectively stores the contents and the data. A capsulated data receiving client 3 receives the contents and the right data obtained by outputting a request for the contents stored in the server 2, releases the secret and enables a user A to user the contents. The user A can reproduce and edit the contents by using an editing means 4. An N-th order data registration client 5 attaches the right data and the edited data to the contents edited by the means 4, makes the contents secret and transmits the contents to the server 2 through the network to perform N-th order registration. |
