name: KMF
full_form: Key Management Function
context: in order to trigger the establishment of secure link over PC5. The request includes UE-1 ID, B-TID and NAF-ID (which identifies the ProSe KMF of UE-1 acting as NAF). 4) UE-2 sends a Retrieve ProSe Direct Key Request to the ProSe KMF of UE-2. The request includes B-TID, UE-1 ID, UE-2 ID and NAF-Id identifying the ProSe KMF of UE-1. 5) The ProSe KMF of UE-2 checks if a UE from the HPLMN associated to the NAF_Id is authorized to set-up security over PC5 with UE-1. 6) The ProSe KMF of UE-2 sends a ProSe key request over PC6 to ProSe KMF of UE-1. The request includes B-TID, UE-1 ID, UE-2 ID.. If the UE-1 and UE-2 are related to the same ProSe KMF, this step is omitted. 7) The ProSe KMF of UE-1checks if the UE-1 is authorized to set-up security over PC5 with a UE belonging to HPLM of UE-2. 8) If the authorization is successful, the ProSe KMF of UE-1sends the B-TID and NAF_Id to the BSF. 9) BSF contacts the HSS over Zh. 10) The BSF prepares the Ks_(ext/int)_NAFand sends it to the ProSe KMF
description: The Key Management Function (KMF) is a network function responsible for managing and distributing cryptographic keys within the network. It plays a crucial role in establishing secure connections between different entities, such as user equipment (UE) and network functions.
explanation: Based on its role in managing keys for secure communication over PC5 interface between UEs and its interaction with other network functions like BSF and HSS, KMF is classified as a Network Function.
section_title: 8.2.1.2.2	Solution description
biotag_Context: O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Service,B-Network Function,O,O,O,O,O,O,O,O,O,O,B-Service,O,O,O,O,O,B-Service,B-Network Function,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,B-Service,B-Network Function,O,O,O,O,B-Service,B-Network Function,O,O,O,O,O,B-Device,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Service,B-Network Function,O,O,O,O,B-Service,O,O,O,O,O,B-Service,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Service,O,O,O,O,O,O,O,B-Service,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,B-Service,B-Network Function,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,B-Network Function,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,B-Service,B-Network Function
biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O