METHOD AND APPARATUS FOR COMPOSING A DIGITAL RIGHTS MANAGEMENT LICENSE FORMAT

摘要

A process composes a content license for a set of content. The content li cense has a static portion and a dynamic portion. Further, the process inser ts a master key into the static portion. In addition, the process inserts a plurality of content rule sets of values into the dynamic portion and compos es a unique content encryption key for each segment of content associated wi th one of the content rule sets of values as each of the content rule sets o f values is sequentially received during recording of the content. The uniqu e content encryption key is based on the master key and at least a subset of the content rule set of values for a corresponding segment of the content. The unique content encryption key is utilized for encryption of each segment of the content to generate a plurality of encrypted content segments for st orage on the storage medium.