name: NAF
full_form: Network Application Function
context: Application Function (NAF). After the bootstrapping has been completed, the UE and a NAF can run some application specific protocol where the authentication of messages will be based on those session keys generated during the mutual authentication between UE and BSF. In the case where UE has contacted a NAF that is operated in another network than home network, this visited NAF shall use a Zn-Proxy of the NAFs network to communicate with subscriber's BSF (i.e. home BSF). The set of all user security settings (USSs), i.e. GUSS, is stored in the HSS. In the case where the subscriber has multiple subscriptions, i.e. multiple ISIM or USIM applications on the UICC, the HSS shall contain one or more GUSSs that can be mapped to one or more private identities, i.e. IMPIs and IMSIs. The required functionalities from the UE are: the support of HTTP Digest AKA protocol; the capability to use both a USIM and an ISIM in bootstrapping; the capability to select either a USIM or an ISIM to be used in
description: The Network Application Function (NAF) is a network component that interacts with user equipment (UE) and other network functions, such as the Bootstrapping Server Function (BSF), to provide application-specific services. It plays a role in authentication and session management, utilizing security keys generated during mutual authentication between the UE and BSF.
explanation: The context explicitly mentions NAF as an entity that interacts with UEs and other network components, such as BSFs, which justifies its classification as a Network Function.
section_title: 5.1.2.5.33GPP
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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,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,B-Device,O,O