A.10 Privacy of MCPTT identities

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

[33.179 MCPTT-A.10-001] The MCPTT identities of each plane shall be used within the corresponding plane and concealed to other planes.

[33.179 MCPTT-A.10-002] When required by the MCPTT Service provider, MCPTT application services layer identities (such as the Mission Critical user identity, MCPTT-ID and MCPTT Group ID) and other application services sensitive information (as further described in 3GPP TS 23.179 [2], clause 8.1), shall be contained within the application plane and shall provide a means to support confidentiality and integrity of the application plane from the SIP signaling plane.

[33.179 MCPTT-A.10-003] When protection of identities and other sensitive MCPTT application information is NOT required by the MCPTT Service provider, the MCPTT application services layer identities (such as the Mission Critical user identity, MCPTT-ID and MCPTT Group ID) and other application services sensitive information (as further described in 3GPP TS 23.179 [2], clause 8.1), shall remain contained within the application plane. While confidentiality protection is not required, integrity protection may be applied.