FIELD: physics, communications.
SUBSTANCE: invention relates to a method and a device for encryption in a mobile broadcast system. The technical result is achieved due to that in a mobile broadcast system, BCAST service subscription management (BSM) manages terminal subscriber information and sends a first delivery message for BCAST service distribution/adaptation (BSD/A), where the said message contains registration key material (RKM) for registering the broadcast service for the terminal, and also at least one service or content identifier. BSD/A sends a first message to BSM for confirming delivery, where the said message contains information indicating success/failure of receiving the first delivery message, and sends the RKM to the terminal.
EFFECT: increased efficiency of encrypting transmitted content.
21 cl, 18 dwg, 7 tbl
