Subscription Concealed Identifier (SUCI) is a privacy-preserving identifier that contains the SUPI in a concealed method.

SUCI consists of the SUPI, Routing Indicator (RI), Protection Scheme Identifier, Home Network Public Key Identifier, and Scheme Output. The AMF derives the SUPI when all the other parameters besides the SUPI are decrypted during the Registration Request sent from the UE to the AMF.

Note	The AMF can derive the SUPI value from SUCI only when the null-scheme is supported.

The AMF derives RI to enable routing of the network signaling with SUCI to AUSF. If the service provider has configured the SUCI profile, then RI used for the AUSF and the UDM discovery.

Note	AMF supports only the IMSI type SUPI.

To configure this feature, use the following configuration:

config 
    profile network-element { ausf | udm } 
        query-params [ routing-indicator ] 
        end 

NOTES:

• profile network-element { ausf | udm } —Configure the peer network element configuration.

• query-params [ routing-indicator ] —Configure the query parameters for the network element's discovery. The network element specified in the previous step is considered for the discovery.