DIGITAL CONTENT DISTRIBUTION SYSTEM Russian patent published in 2007 - IPC G06F17/30 H04N7/167 

FIELD: cryptographic protocols, in particular, efficient encoding at content level.

SUBSTANCE: method is provided for generation of digital data with cryptographic protection, encoding content and composed into messages. Encoding of at least a part of the message is performed and encoded messages are provided in form of output signal in format, allowing the interface of server service to compose a message in form of at least one packet, including at least one header and useful load, where at least one header includes information, which allows the service interface in the client to assemble each message for decoding application using useful load of packets. Each message is divided onto the first and at least one additional section of the message. At least one of the message sections is encoded in such a way that it may be decoded independently from other message sections. Assembly of encrypted message is performed by addition of resynchronization marker, separating the message section from adjacent message section and including precise information about synchronization, at least for additional sections of the message.

EFFECT: synchronized decoding process in case of data loss.

14 cl, 8 dwg