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TS 33.179SA3
Security of MCPTT over LTE

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V13.10.0 (PDF)2019/12  94 p.

Rapporteur:  Mr. Haigh, Peter

The present document specifies the security architecture, procedures and information flows needed to protect the mission critical push to talk (MCPTT) service. The architecture includes mechanisms for authentication, protection of MCPTT signalling and protection of MCPTT media. Security for both MCPTT group calls and MCPTT private calls operating in on-network and off-network modes of operation is specified.

full Table of Contents for  TS 33.179  Word version:   13.10.0

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1  ScopeWord-p. 8
2  References
3  Definitions and abbreviationsWord-p. 10
4  Overview of MCPTT security
5  Authentication and authorizationWord-p. 16
6  Signalling plane protectionWord-p. 25
7  End-to-end communication security
7.1  Overview
7.2  Key provisioning and managementWord-p. 26
7.3  Group call key distribution
7.4  Private call key distribution
7.5  Protection of media stream (SRTP)Word-p. 40
7.6  Protection of offline floor and media control signalling (SRTCP)Word-p. 42
7.7  Protection of MBMS subchannel control messages (SRTCP)Word-p. 44
8  Inter/Intra domain interface securityWord-p. 46
9  Protection of floor control and sensitive application signalling
A (Normative)  Security requirementsWord-p. 56
B (Normative)  OpenID connect profile for MCPTTWord-p. 60
C  OpenID connect detailed flowWord-p. 68
D (Normative)  KMS provisioning messages to support MCPTTWord-p. 70
E (Normative)  MIKEY message formats for media securityWord-p. 82
F (Normative)  Key derivation and hash functionsWord-p. 89
G  Change historyWord-p. 91

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