Data copyright management system

A data copyright management method comprising:

• encrypting a plurality of original data using a first secret key to produce an encrypted plurality of original data;
• supplying the encrypted plurality of original data and a scenario to a user, the scenario being an interrelation and editing process of the plurality of original data;
• distributing the first secret key and a second secret key from a copyright management center to the user;
• decrypting the encrypted plurality of original data by the user using the first secret key to produce a decrypted plurality of original data;
• producing data by the user applying the scenario to the decrypted plurality of original data;
• and
• re-encrypting the decrypted plurality of original data using the second secret key before storing, copying, or transferring the produced data.

A data copyright management method comprising:

• encrypting a plurality of original data using a first secret key to produce an encrypted plurality of original data;
• supplying the encrypted plurality of original data and an original scenario to a user, the scenario being an interrelation and editing process of the plurality of original data;
• distributing the first secret key and a second secret key from a copyright management center to the user;
• decrypting the encrypted plurality of original data by the user using the first secret key to produce a decrypted plurality of original data;
• editing at least one of the decrypted plurality of original data and the original scenario to produce edited data including a plurality of new data and a new scenario;
• re-encrypting the decrypted plurality of original data using the second secret key before storing, copying, or transferring data represented by the plurality of original data and the original scenario;
• and
• encrypting the plurality of new data using the second secret key before storing, copying, and transferring the edited data.

A data copyright management method comprising:

• encrypting a plurality of original data using a first secret key to produce an encrypted plurality of original data;
• supplying the encrypted plurality of original data and an original scenario to a user, the original scenario being an interrelation and editing process of the plurality of original data;
• distributing the first secret key and a second secret key from a copyright management center to the user;
• decrypting the encrypted plurality of original data by the user using the first secret key to produce a decrypted plurality of original data;
• editing at least one of the decrypted plurality of original data and the original scenario to produce edited data including a plurality of new data and a new scenario;
• re-encrypting the decrypted plurality of original data using the second secret key before storing, copying, or transferring data represented by the plurality of original data and the original scenario;
• and
• encrypting the plurality of new data using a third secret key before storing, copying, or transferring the edited data.