Security Aspects of Proximity based Services (ProSe) in the 5G System (5GS)
The present document specifies the security and privacy aspects of the Proximity based Services (ProSe) in the 5G System (5GS). 5G ProSe security features include: 5G ProSe Direct Discovery security, 5G ProSe Direct communication security, 5G ProSe UE-to-Network Relay security, 5G ProSe UE-to-UE Relay security and security of emergency services for 5G ProSe Remote UE via 5G ProSe UE-to-Network Relay.
The 5G ProSe UE-to-Network Relay security includes the security aspects for single-hop and multi-hop scenarios for both Layer-2 and Layer-3 5G ProSe UE-to-Network Relay. The 5G ProSe UE-to-UE Relay security includes the security aspect of single-hop secenario for both Layer-2 and Layer-3 5G ProSe UE-to-UE Relay, and security aspect of Layer-3 multi-hop 5G ProSe UE-to-UE Relay scenario.