Study on security aspects of enhancement of support for edge computing in the 5G Core (5GC) phase 3
The present document studies the security enhancements on the support for Edge Computing in the 5G Core network defined in TR 23.700-49 [2], and enhanced architecture for enabling Edge Applications defined in TS 23.558 [3]. Specifically, the present document focuses on the following:
1) Study the security aspects on the enhancements for EAS (re)discovery and UPF (re)selection with reducing impact on central 5GC NFs, enhancement of EAS and local UPF (re)selection, and EC Traffic Routing between local part of DN and central part of DN the Edge Hosting Environment information management.
2) Study the security on the enhancements to Edge Enabler layer (EEL) to support additional scenarios for edge services.
3) Study the authorization between EESes for both Application Context Relocation (ACR) and Edge Node Sharing (ENS) scenarios.
4) Study the secure retrieval of 5G system UE Ids and privacy related information in the EDGE.
The study is based on the work done in the TS 33.558 [4], TR 33.839 [5], TR 33.739 [6].