METHOD AND SYSTEM FOR FORMING A CONTENT STREAM WITH CONDITIONAL ACCESS INFORMATION AND A CONTENT FILE

摘要

A communication system includes a content repository 274 storing a content file and a video transport processing system 273 in communication with the content repository 274. The video transport processing system 273 receives a plurality of conditional access information, stores a relative time of arrival of each of the plurality of conditional access information and encrypts the content file using the plurality of conditional access information and the relative time of arrival to form an encrypted content file.