Question: In the context of SUCI (Subscriber Concealed Identity) calculation for a 5G network, what is the primary criterion for selecting the profile used by the terminal for the ECIES scheme?
Option 1: The profile with the longest username in the EFSUPI_NAI.
Option 2: The profile with the highest priority, specifically using the Home Network Public Key (e.g., ECIES scheme profile B).
Option 3: The first available profile listed in the UICC's configuration for 5G-NR non-IMSI SUPI Type.
Option 4: The profile associated with the most recent TAI (Tracking Area Identity) update.
Explanation: In SUCI calculation for 5G networks, the terminal selects a profile for the ECIES scheme based on prioritization. The correct answer reflects using the highest priority profile, involving the Home Network Public Key (e.g., ECIES scheme profile B), to ensure secure and authenticated UE-network communication.