Abstract
In private 5G deployments with multiple edges where authentication and user-identity decryption, from SUCI (SUbscription Concealed Identity) to the real identity of the device/UE (IMSI, International Mobile Subscriber Identity), needs to be performed on-premise, i.e. at the edge and not in a centralized cloud location, the home network secret key used to decrypt a subscriber’s SUCI (Subscription Concealed Identifier) for the subscribers must be available at the network edge location. Having the same home network secret key at all edge locations is a security concern, since compromise of the home network secret key at any single edge can lead to the loss of privacy of all subscribers of the enterprises and edges. Techniques proposed herein enable the creation of enterprise/edge specific public keys and updating these on the SIM/eSIM (Subscriber Identity Module/embedded SIM) of devices to ensure subscriber privacy.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Ali, Irfan; Nicoara, Eugen; Guntupalli, Ravi Kiran; and Wolfinger, Chase, "CONTROLLING THE SELECTION OF A HOME NETWORK PUBLIC KEY FOR SUCI ENCRYPTION IN A SIM OR ESIM", Technical Disclosure Commons, (October 24, 2024)
https://www.tdcommons.org/dpubs_series/7470