Feature Description

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 is used for the AUSF and the UDM discovery.

Note

AMF supports only the IMSI type SUPI.