6 Security
22.1463GPPMultimedia Broadcast/Multicast Service (MBMS)Release 17Stage 1TS
It shall be possible to ensure that only those users who are entitled to receive a specific MBMS service may do so. It should be possible to choose whether a given MBMS service is to be delivered with or without ensured group security.
If a terminal supports MBMS, then it shall support UICC based key management and all the function and interfaces required for it. In addition, ME key management shall be supported. If the UICC is capable of MBMS key management, ME key management shall not be activated.