Protect the hash information in the scatter and multimedia propagation service subdirectory and click 'mission critical

摘要

A mission critical pulse node (MCPT) (410, 510, 600, 800) is connected to a group of user (EU) (405, 505, 700, 900) devices served by the MCPT node. MCPT node generates control key for MBMS (mcck) (s305) sub database.The first batch of information is sent to the EU through unidistribution, including the generated sanitary and phytosanitary measures (S310),At least one control message is generated from MBMS subanalysis (s315),Apply integrity protection and / or confidentiality protection to at least one control message between MBMS subsystem and msck (S320),At least one MBMS subsystem control information is sent in the multi broadcast (s325).