provision of policy updates for protected content

摘要

PROVIDING POLICY UPDATES FOR PROTECTED CONTENT. These are various modalities that allow policy updates, such as DRM policy updates, to be delivered and updated for a particular piece of protected content. In at least some embodiments, various protocols may be extended to allow policy updates to be represented and made by the protocol. In one embodiment, Hypertext Transport Protocol or HTTP is used to perform policy updates. In another embodiment, Real Time Streaming Protocol or RTPS is used to perform policy updates.