Patent ID: 7613182

Claim:
A process for distribution of digital audiovisual streams, comprising: processing an original audiovisual stream to generate a modified stream having a format corresponding to a format of the original stream and to generate complementary information of any format, the complementary information including digital information suitable to permit reconstruction of the original stream; transmitting to equipment of an addressee, using separate transmission paths, the modified stream from a distribution server and the complementary information from a secure central server, wherein the transmission path for the complementary information passes through at least one local server coupled to the equipment of the addressee via at least one access point, wherein the secure central server performs a segmentation of the complementary information with respective segments corresponding to audiovisual elements in units of streams of complementary information with a variable size, wherein, before sending the complementary information from the local server to the equipment of the addressee, the complementary information is decrypted with a first encryption key and re-encrypted with a second encryption key, wherein the second encryption key is constructed during an authentication stage between the equipment of the addressee and any local server.