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TS 33.303SA3
Proximity-based Services (ProSe) –
Security aspects

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V15.0.0 (PDF)  2018/06  90 p.
V14.1.0  2017/06  93 p.
V13.5.0  2017/06  93 p.
V12.7.0  2016/06  69 p.

Rapporteur:  Dr. Escott, Adrian

The overall architecture for ProSe is given in TS 23.303. ProSe includes several features that may be deployed independently of each other. For this reason, no overall security architecture is provided and each feature describes its own architecture.
Although made of several different features, those features share many procedures, for example, both ProSe Direct Discovery and ProSe Direct Communication utilize the same procedure for service authorization (see TS 23.303). Security for this common procedures are described in clause 5 of the present document, while the overall security of the ProSe features is described in clause 6 of the present document (which refers back to clause 5 as necessary).
The present document specifies the security aspects of the Proximity Services (ProSe) features in EPS. The ProSe features covered are:
  • Configuration of ProSe-enabled UEs;
  • Open ProSe Direct Discovery (in network coverage);
  • One-to-many communication for ProSe-enabled Public Safety UEs;
  • EPC-level ProSe Discovery;
  • EPC support for WLAN Direct Communication.

full Table of Contents for  TS 33.303  Word version:   15.0.0

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1  ScopeWord-p. 8
2  References
3  Definitions and abbreviationsWord-p. 10
4  Overview of ProSe securityWord-p. 12
5  Common security procedures
6  Security for ProSe featuresWord-p. 15
6.1  ProSe direct discovery
6.2  Security for One-to-many ProSe direct communicationWord-p. 28
6.3  EPC-level discovery of ProSe-enabled UEsWord-p. 39
6.4  Security for EPC support WLAN direct discovery and communicationWord-p. 43
6.5  Security for One-to-one ProSe Direct communication [R13]
6.6  Security for ProSe Public Safety Discovery [R13]Word-p. 51
6.7  Security for ProSe UE-to-network relays [R13]
A (Normative)  Key derivation functionsWord-p. 65
E (Normative)  Key Request and Response messagesWord-p. 72
F  Network options for PC3 securityWord-p. 84
G  Protection of Restricted Discovery and Public Safety Discovery messages [R13]Word-p. 86
H  Change historyWord-p. 88

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