name: ME
full_form: Managed Element
context: is a key derived by ME and gNB from KgNB, which shall only be used for the protection of UP traffic between ME and gNB with a particular encryption algorithm; - KUPint is a key derived by ME and gNB from KgNB, which shall only be used for the protection of UP traffic between ME and gNB with a particular integrity algorithm. Keys for RRC signalling: - KRRCint is a key derived by ME and gNB from KgNB, which shall only be used for the protection of RRC signalling with a particular integrity algorithm; - KRRCenc is a key derived by ME and gNB from KgNB, which shall only be used for the protection of RRC signalling with a particular encryption algorithm. Intermediate keys: - NH is a key derived by ME and AMF to provide forward security. - KgNB* is a key derived by ME and gNB when performing a horizontal or vertical key derivation. The primary authentication enables mutual authentication between the UE and the network and provide an anchor key called KSEAF. From KSEAF, KAMF is created
description: A Managed Element (ME) is a network function that plays a crucial role in deriving and managing various keys for protecting user plane traffic, RRC signalling, and providing forward security between the User Equipment (UE) and the network. It collaborates with other network functions like gNB and AMF to ensure secure communication.
explanation: The context explicitly mentions ME as an entity involved in key derivation processes, working alongside gNB and AMF. This indicates that ME is a component within the network responsible for specific functionalities related to security and authentication, fitting the definition of a Network Function.
section_title: 13.1Overview and Principles
biotag_Context: O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,B-Network Function,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,B-Network Function,O,B-Network Function,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,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-Parameter,O,O
biotag_Description: O,B-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,B-Protocol,O,O,O,O,O,O,O,B-Device,I-Device,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,O