A.9 Off-network operation

33.1793GPPRelease 13Security of Mission Critical Push To Talk (MCPTT) over LTETS

[33.179 MCPTT-A.9-001] The MCPTT service should take measures to detect and mitigate DoS attacks to minimize the impact to relays and to off-network MCPTT users.

[33.179 MCPTT-A.9-002] The MCPTT Service shall provide a means to support end-to-end security for all media traffic transmitted between MCPTT UEs, including where relays are used.

[33.179 MCPTT-A.9-003] The MCPTT Service shall provide a means to support the confidentiality and integrity protection of location information transmitted from the MCPTT UE to the MCPTT application server, including where relays are used.

[33.179 MCPTT-A.9-004] MCPTT off-network UEs shall be explicitly or implicitly authenticated to each other.

[33.179 MCPTT-A.9-005] MCPTT off-network UEs and MCPTT relays shall be explicitly or implicitly authenticated to each other.

[33.179 MCPTT-A.9-006] The security solution should minimize the impact of a compromised MCPTT UE on other MCPTT UEs.

[33.179 MCPTT-A.9-007] The MCPTT Service shall provide a means to ensure integrity of all MCPTT user signalling at the application layer.

[33.179 MCPTT-A.9-008] The MCPTT service shall provide a means to support confidentiality of MCPTT user identities from all entities outside the MCPTT service.

[33.179 MCPTT-A.9-009] The MCPTT service shall provide a means to support confidentiality of MCPTT signalling from all entities outside the MCPTT service.