name: MGV-F
full_form: MBMS key Generation and Validation Function
context: When the MGV-F receives the MIKEY message, the MGV-F first determines the type of message by reading the EXT. If the EXT indicates MSK delivery (clause 6.4.4) then the text in this clause applies. The MGV-F shall not abort processing of a MIKEY message when encountered with an extension payload with unknown type. The content of an unknown extension payload (except for the next payload, type and length fields) shall be treated as an opaque object. The MAC computation required for the KEMAC payload shall include any unknown extension payloads preceeding it. NOTE: This is because an unknown extension payload may be specified for ME use only and it is therefore "unknown" to the MGV-F. Skipping unknown payloads during the payload parsing is a deviation from recommended receiver behavior in section 5.3 of RFC 3830 [9]. The MGV-F retrieves the MUK identified as specified in clause 6.1. If the Key Number part of the MSK ID in the EXT equals 0x0 then this indicates a solicited pull procedure
description: The MBMS key Generation and Validation Function (MGV-F) is responsible for processing MIKEY messages, determining message types, and performing MAC computations. It plays a crucial role in handling MSK delivery and ensuring secure communication within the network.
explanation: MGV-F is classified as a Network Function based on its role in processing MIKEY messages, handling MSK delivery, and performing security-related tasks within the network, as highlighted by the context from 3GPP TS 33.246.
section_title: 6.5.3	MSK processing
biotag_Context: O,O,B-Network Function,O,O,B-Protocol,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,B-Protocol,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,B-Protocol,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,B-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,B-Specification,O,O,O,B-Network Function,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,B-Parameter,O,O,B-Parameter,O,O,O,O,O,O,O,O,O
biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,I-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O