公开(公告)号：US20250048113A1

公开(公告)日：2025-02-06

申请号：US18791362

申请日：2024-07-31

Applicant: Nokia Technologies Oy

Inventor： Aritra BANERJEE ,  Ranganathan MAVUREDDI DHANASEKARAN ,  K TIRUMALESWAR REDDY ,  Saurabh KHARE

IPC: H04W12/72 ,  H04L9/30

Abstract: Embodiments of the present disclosure relate to subscription concealed identifier (SUCI) encryption. In an aspect, a terminal device generates a SUCI of the terminal device based on a subscription permanent identifier (SUPI) of the terminal device. The SUCI comprises a SUPI type indicating that both elliptic curve cryptography (ECC) and post quantum cryptography (PQC) are used in the generating of the SUCI. The terminal device further transmits the SUCI to a network device. As such, a SUCI can be defined to comprise a SUPI type indicating that both the ECC and PQC are used in the generating of the SUCI. With the SUCI generated based on both the ECC and PQC, different kinds of cryptanalytic attacks can be avoided.