Individual video encryption system and method

摘要

A method for creating a multiplexed data stream composed of encrypted multimedia data (310), decryption information, and stream key data. The process of creating the multiplexed data stream (320) uses a multiplexing pattern that is determined in view of a stream key data and an instrument identification number preferably corresponding to the receiver of such multiplexed data stream. Stream key data that is transmitted as part of the multiplexed data stream is placed in predetermined locations, for the benefit of a decoder that extracts such stream key data from the predetermined locations. The multiplexed data stream is then processed for transport (330). A method and apparatus for demultiplexing the multiplexed data stream is also disclosed.