基于5G用户卡的5G接入认证分析及试验

Analysis and Test of 5G Access Authentication Based on 5G User Card

用户卡承载移动用户身份标识和网络接入认证的重要功能。5G SA网络在接入认证方面新增不同于4G网络的用户隐私保护、EAP-AKA'认证/5G AKA认证、5G密钥体系及5G安全上下文等特性,这些特性对5G用户卡提出新的要求。本文首先介绍5G SA网络的安全模型,然后介绍5G用户卡为支持5G接入认证特性所支持的的SUCI、双向认证、新增卡文件及服务等功能,在此基础上介绍5G SA实验网络中开展的基于5G用户卡的接入认证试验及其成果。

The user card carries the important functions of mobile user identity identification and network access authentication.Different from 4G network in terms of access authentication,5G SA network adds user privacy protection,EAP-AKA’ authentication/5G AKA authentication,5G key hierarchy and 5G security context,which raises new requirements for 5G user cards.This paper first introduces the 5G SA network security model,then introduces SUCI、mutual authentication,new card file and service of 5G user card to support 5G access authentication feature.On this basis,the access authentication test based on 5G user card is introduced to be carried out in 5G SA experimental networks and results.