ECIES in 5G Core: SUPI to SUCI Conversion

BY – Aditya Koranga SUPI stands for Subscription Permanent Identifier, a permanent unique identifier assigned to each sim card for the identity of a subscriber. In 4G it was called IMSI(International Mobile Subscriber Identity). SUPI is a 15 or 16 digits string that contains MCC(Mobile Country Code), MNC(Mobile Network Code), and MSIN(Mobile Subscriber Identification Number). …

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AKA Procedure

BY SHUBHAM KUMAR If the UE(User Equipment) is previously registered with the network, it will have a temporary identifier, 5G-GUTI(5G- Global Unique Temporary Identifier) stored in it. The UE will use this identifier for the Identification procedure. The 5G-GUTI is sent to the SEAF(Security Anchor Function) in the logical N1 interface where SUPI(Subscription Permanent Identifier) …

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