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TR 33.843SA3
Study on Security aspect of Architecture enhancements to
ProSe UE-to-network Relay

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V15.1.0 (Wzip)  2018/06  35 p.

WI Acronym:  FS_REAR_Sec
Rapporteur:  Mr. Li, He

The present document contains a study of the security aspects of enhancements to ProSe UE-to-Network Relay. Its objective is to identify threats when an Evolved ProSe Remote UE with UICC connects to the network via an Evolved ProSe UE-to-Network Relay. The potential requirements are identified based on threat and the potential solutions are studied. Evaluations of solutions are captured and the conclusion forms the basis for the potential normative work.

full Table of Contents for  TR 33.843  Word version:   15.1.0

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1  ScopeWord-p. 7
2  References
3  Definitions and abbreviations
4  Overview of REARWord-p. 8
5  Key issues
5.1  Key Issue #1: Authorization for indirect 3GPP communication
5.2  Key Issue #2: Authentication of eRemote-UE via eRelay-UE
5.3  Key Issue #3: IMSI Privacy of eRemote-UEWord-p. 10
5.4  Key Issues #4: DiscoveryWord-p. 11
5.5  Key Issues #5: Security of CP between eRemote-UE and networkWord-p. 12
5.6  Key Issue #6: Security of Service Continuity
5.7  Key Issues #7: Authentication of eRemote-UE during Setting Up Indirect 3GPP CommunicationWord-p. 15
5.8  Key Issue #8: Authentication of eRelay-UE
5.9  Key Issue #9: User Plane protection between eRemote-UE and eNB
6  Solutions
6.1  Solution #1: Authentication of eRemote-UE via eRelay-UE
6.2  Solution #2: eRemote-UE Authentication with MITM detectionWord-p. 17
6.3  Solution #3: Authentication of eRelay-UE
6.4  Solution #4: Solution of Authorization for Indirect 3GPP Communication
6.5  Solution #5: Protection of the UP between eRemote-UE and eRelay-UE
6.6  Solution #6: Solution for protection of CP between eRemote-UE and Network
6.7  Solution #7: Solution of IMSI privacy for attach via eRelay-UE
6.8  Solution #8: eRelay Discovery
6.9  Solution #9: Path Switch of direct to indirect 3GPP Communication and vice versa
6.10  Solution #10: Handover of eRemote-UE from one eRelay to anotherWord-p. 27
6.11  Solution #11: Handover of eRelay-UE
6.12  Solution #12: Enhancement of Setting Up Connection between eRemote-UE and eRelay-UE
6.13  Solution #13: Security Parameters Configuration on eRemote-UE during Dynamic Trust Relationship Establishment
7  Conclusions
A  Change historyWord-p. 35

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