After the core network has finished decrypting the SUCI into a SUPI, in which function does it verify the SUPI？
Hello @cynthia,
I think the function of verifying SUPI is placed in UDM.
From the picture, AMF will find SUPI based on 5G-GUTI and use SUPI to complete the authentication. If the 5G-GUTI cannot find the corresponding SUPI, the AMF will request the SUCI from the UE and re-authenticate according to the SUCI.
If you have other questions, you can ask again, thank you
As I know,
AUSF is responsible for authentication.
UDM is just decrypt the SUPI in SUCI. when decryption work finished, UDM will returns the SUPI to AUSF for authentication.
