基于AKA协议的USIM卡安全研究与实现

Research and Implementation of Security of USIM Card Based on Protocol of AKA

智能卡芯片存储了用户的敏感数据,提高智能卡的安全性与保密性显得至关重要,关系着运营商与用户的切身利益。通过对3G中认证和密钥协商协议(AKA)的安全性研究,阐述了USIM COS的安全特性,分析了3G的安全体系,对智能卡芯片操作系统的安全模块进行了体系结构设计,实现了AKA鉴权算法,对文件访问控制、报文鉴别和数据加密通信等进行设计。实验结果表明该系统符合国际标准和行业标准,运行稳定,能进行数据出错检测和数据恢复,安全高效。

The USIM card stores private sensitive defense data of user and it is very important to enhance the security and confidentiality of data.By researching the security of authentication and key management of 3rd communication,analyzing the ciphering mechanism and principle,design security module architecture of chip operating system,implement the authentication algorithm of AKA,and design a file access control mechanism,message authentication,data encryption for communication.Experiment results prove that the system is validated to accord with international standards and industry standards,run stably,effectively and safely.