A.1 KDF interface and input parameter construction

33.3033GPPProximity-based services (ProSe)Release 17Security aspectsTS

A.1.1 General

This annex specifies the use of the Key Derivation Function (KDF) specified in TS 33.220 [5] for the current specification. This annex specifies how to construct the input string, S, to the KDF (which is input together with the relevant key). For each of the distinct usages of the KDF, the input parameters S are specified below.

A.1.2 FC value allocations

The FC number space used is controlled by TS 33.220 [5].