Patent ID: 11877149
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An apparatus, comprising:
a hardware processor configured to cause an Access and Mobility Function (AMF) of a public land mobile network (PLMN) to:
encode a public key of the PLMN for transmission in a system information block (SIB) or non-access stratum (NAS) message;
decode, from a UE, an initial NAS message comprising at least one encrypted information element (IE) encrypted using the public key, wherein an entire NAS message payload of the initial NAS message is encrypted using the public key, wherein the initial NAS message is a first NAS message sent after the UE transitions from an idle state, wherein the initial NAS message comprises encrypted IEs including UE security capabilities, single network slice assistance information (S-NSSAI), and a key set identifier for next generation radio access network (ngKSI); and
decrypt the at least one encrypted IE of the initial NAS message using a private key associated with the public key.