name: PCA
full_form: Pseudonym Certificate Authority
context: 4). vUE establishes a secure link to its PCA, gets PCA KvUE. vUE and PCA establish and end-to-end secure link based on this key. vUE sends a ticket (i.e. random id with signature by MNO) to PCA. The MNO link (WAN) may be used as transport. 5). PCA verify the ticket, and if it is valid, PCA selects a subpool of (PMSI, KPMSI) pairs for this IMSI, stores mapping. PCA sends subpool to vUE. 6). vUE decrypts each received (PMSI, KPMSI) pair with KPERIOD At this point the vUE has several (PMSI, KPMSI) pairs that it can use to attach with. The MNO will know that this PMSI was authorized, but not the IMSI of the UE.
description: The Pseudonym Certificate Authority (PCA) is a network function responsible for managing pseudonym certificates and keys for user equipment (UE) in a mobile network. It plays a crucial role in secure authentication and key exchange between the UE and the network.
explanation: The context describes PCA as an entity that establishes secure links, verifies tickets, selects subpools of PMSI/KPMSI pairs, and sends them to UEs. This behavior aligns with the characteristics of a Network Function, which is responsible for managing specific network operations.
section_title: 6.3.2	Solution details
biotag_Context: O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Organization,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,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-Organization,O,O,O,O,B-Parameter,O,O,O,O,O,B-Parameter,O,O,O
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,B-Device,O,O,O