Patent ID: 7613181

Claim:
A process for secure distribution of original digital audiovisual streams including audio, video components or other data, comprising: packetizing an original audiovisual stream into packets that can be manipulated and have a flexible size, wherein the packets include respective headers containing information about the respective packets and contain respective load information, analyzing the packetized stream prior to transmission to client equipment to generate a main stream in conformity with a packetized format of the original audiovisual stream, modified in that all or part of the packets of the main stream correspond to substitute packets of the same structure as respective packets, but having modified content with respect to the respective packets, and generating complementary information with any format suitable to permit reconstruction of the original stream, wherein the complementary information includes instructions describing actions to be performed on the packets of the main stream, and separately transmitting the main stream and complementary information generated from the server to the client equipment to securely distribute the original audiovisual stream.