| 摘要 |
The supply of works of authorship and their authentication are provided by a service system and method for supplying and authenticating digital data works of authorship based on a watermarking system. The works of authorship including invisible information on a copyright is provided through this system. In the event that illegal use of original works of authorship is sensed, the illegal copy and use of multimedia contents could be prevented by presenting accurate technical evidence to support the information on a copyright through authentication of an authentication organization and thereby the protection of a copyright is possible. Authentication of a copyright of the contents is performed by the steps of imbedding and extracting of a digital watermark such as a logo or signature of a copyright holder on a data. |
