Section: 5.4.1 Primary authentication and key agreement procedure 5.4.1.1 General
Content: The purpose of the primary authentication and key agreement procedure is to enable mutual authentication between the UE and the network and to provide keying material that can be used between the UE and network in subsequent security procedures, as specified in 3GPP TS 33.501[ Security architecture and procedures for 5G System ]  [24]. Two methods are defined: a) EAP based primary authentication and key agreement procedure. b) 5G AKA based primary authentication and key agreement procedure. The UE and the AMF shall support the EAP based primary authentication and key agreement procedure and the 5G AKA based primary authentication and key agreement procedure.