name: AKAF
full_form: AKMA Anchor Function
context: subscription, and therefore the same credentials, are used for 5G access and for AKMA. With this solution there is no need for a separate and specific AKMA authentication. The child option for the derivation of KAKMA involves only the AUSF for both 5G AKA and EAP-AKA'. The advantage of the KAKMA being the child key with respect to KAUSF, is that the KAKMA can be derived from the existing KAUSF using the procedure proposed in this solution, without the need for a new primary authentication run. One of the drawbacks of the child key option is that KAUSF is already used for other purposes (such as Steering of Roaming (SoR) as described in TS 33.501 [10]). For the options on AKAF being a separate entity or not, the advantage of the AKAF being a separate unit is to separate it from the authentication functions, since the AKAF will also have interfaces to external application servers. However, if it is a separate unit, the interface between AUSF and AKAF need to have integrity and
description: The AKMA Anchor Function (AKAF) is a network component responsible for managing the derivation of KAKMA, a child key used for AKMA authentication. It interacts with the Authentication Server Function (AUSF) and may have interfaces to external application servers.
explanation: AKAF is classified as a Network Function due to its role in handling specific network operations related to AKMA authentication and its interaction with other network components like AUSF, as described in the context.
section_title: 5.15.3	Evaluation
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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,B-Protocol,O,O,O,O,O,B-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O