3GPP TS 33.179 (3 of 6) - Security of Mission Critical Push To Talk (MCPTT) over LTE

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full Table of Contents for TS 33.179 PDF version: 13.6.0

1… 5… 7… 8… A… D…

7.1 Overview 7.2 Key provisioning and management 7.3 Group call key distribution 7.4 Private call key distribution 7.5 Protection of media stream (SRTP) 7.6 Protection of offline floor and media control signalling (SRTCP) 7.7 Protection of MBMS subchannel control messages (SRTCP)
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7 End-to-end communication security

7.2 Key provisioning and management PDF-p. 26

7.2.2 Functional model for key management

7.2.2.0 General

7.2.2.1 Reference point CSC-8 (between key management server and the key management client within the MCPTT UE) PDF-p. 27

7.2.2.2 Reference point CSC-9 (between the key management server and the key management client within the MCPTT Server)

7.2.2.3 Reference point CSC-10 (between the key management server and the key management client within a group management server)

7.2.3 Security procedures for key management

7.2.4 Provisioned key material to support end-to-end communication security PDF-p. 28

7.3 Group call key distribution PDF-p. 29

7.3.2 Security procedures for GMK provisioning PDF-p. 31

7.3.3 Key Identification and purpose tags PDF-p. 32

7.3.4 Group creation procedure

7.3.5 Dynamic group keying

7.3.5.1 General

7.3.5.2 Group regrouping procedures (within a single MCPTT system) PDF-p. 33

7.3.5.3 Group regrouping procedures (involving multiple MCPTT systems)

7.3.6 Derivation of SRTP/SRTCP master keys PDF-p. 34

7.3.7 Group member GMK management

7.4 Private call key distribution PDF-p. 35

7.4.2 Security procedures (on-network) PDF-p. 36

7.4.3 Security procedures (off-network) PDF-p. 37

7.4.4 Derivation of SRTP/SRTCP master keys PDF-p. 38

7.5 Protection of media stream (SRTP) PDF-p. 39

7.5.2 Security procedures for media stream protection PDF-p. 40

7.6 Protection of offline floor and media control signalling (SRTCP) PDF-p. 41

7.6.2 Security procedures for offline floor and media control protection PDF-p. 42

7.7 Protection of MBMS subchannel control messages (SRTCP) PDF-p. 43

7.7.2 Key distribution

7.7.3 Derivation of SRTCP master keys PDF-p. 44