US 12,273,707 B2
Deriving a key based on an edge enabler client identifier
Andreas Kunz, Ladenburg (DE); and Sheeba Backia Mary Baskaran, Friedrichsdorf (DE)
Assigned to Lenovo (Singapore) Pte. Ltd., Singapore (SG)
Filed by Lenovo (Singapore) Pte. Ltd., New Tech Park (SG)
Filed on Dec. 17, 2021, as Appl. No. 17/555,196.
Prior Publication US 2023/0199483 A1, Jun. 22, 2023
Int. Cl. H04L 9/08 (2006.01); H04L 9/40 (2022.01); H04W 12/041 (2021.01)
CPC H04W 12/041 (2021.01) [H04L 9/0819 (2013.01); H04L 9/0866 (2013.01); H04L 63/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of a network function, the method comprising:
receiving a request message from an edge server function, wherein the request message comprises: an edge server identifier and an edge enabler client identifier (EEC-ID), wherein the EEC-ID comprises an unencrypted EEC-ID or an encrypted EEC-ID, wherein the encrypted EEC-ID is encrypted with an authentication and key management (AKMA) key (KAKMA);
deriving an application specific key (KAF) based on the edge server identifier;
authenticating the edge server function;
when the edge server function is authenticated, decrypting the EEC-ID and deriving a unique key (KAFEEC) in an AKMA anchor function (AAnF) based on the KAF and the EEC-ID; and
transmitting a response message to the edge server function, wherein the response message comprises the KAFEEC and an unencrypted EEC-ID.