A.1 KDF interface and input parameter construction

33.5353GPPAuthentication and Key Management for Applications (AKMA) based on 3GPP credentials in the 5G System (5GS)Release 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

A.1.1 General

All key derivations for AKMA shall be performed using the key derivation function (KDF) specified in Annex B.2.2 of TS 33.220 [4].

This clause specifies how to construct the input string, S, and the input key, KEY, for each distinct use of the KDF. Note that "KEY" is denoted "Key" in TS 33.220 [4].

A.1.2 FC value allocations

The FC number space used is controlled by TS 33.220 [4], FC values allocated for the present document are in the range of 0x80 – 0x82.