| 摘要 |
The present invention relates to methods, devices, data signals and memory storage for digital rights management of distribution and control of items such as digital content. In particular the present invention relates to derivative rights on the digital content. The present invention relates to a method of generating derivative digital content from at least one piece of source content associated with a source license identifying rights related to said source content, and where said license comprises a content key to be used for accessing said source content, said method of generating said derivative digital content comprising the step of; creating at least one derivative license associated with said generated derivative digital content, said derivative license identifying rights related to said derivative content and said derivative license further comprising key information linking the derivative license to said content key of said source license, where said content key is to be used when accessing said derivative content. |
