DVB SimulCrypt; Head-end architecture and synchronization
The present document specifies the system architecture, timing relationships and messaging structures of DVB SimulCrypt.
The components within the system architecture represent functional units. The boundaries between physical units are not required to match the boundaries between functional units. It is possible that the SimulCrypt Synchronizer (SCS) could be in the Multiplexer (MUX) or the SCS and MUX could be built independently. Neither architecture is mandated.
Common scrambling algorithm
The DVB SimulCrypt system is based on the concept of a shared scrambling and descrambling method. No problems were noted so far on the possible constraints which the DVB SimulCrypt architecture might impose on the use of a shared scrambling and descrambling method.