基于椭圆曲线的4G网络身份认证算法的研究

Study on Identity Authentication Algorithm of 4G Network Based on Elliptic Curve

第四代移动网络(4G)系统致力于无缝融合不同无线通信技术并支撑高速率通信环境.伴随社会多媒体业务和通讯数据业务的发展,4G网络广泛应用到了移动计算机、移动通信设备、移动数据等各个方面.随着4G网络系统的不断发展,人们对信息安全性的要求逐渐提高,对于目前所有的无线相关安全技术,无论是从传统无线局域网的接入安全到802.1X身份认证,还是从全球移动通信到4G网络安全发展,身份认证技术是整个安全体系的重要防线,一直是业内人士比较关心的问题.如何能够解决网络实体之间身份认证高效性、兼容性、可扩展性和用户可移动性的问题是至关重要的.文章在椭圆曲线对数难解问题的基础上,设计适合于4G网络安全的身份认证算法方案,并对方案进行了安全性分析.

The fourth-generation mobile network（4G）system is committed to the seamless integration of differentwireless communication technologies and supports high speed communication environments. With the developmentof multimedia communication and data service,4G network is widely used in mobile computer,mobile communicationequipment,and mobile data and so on. With continuous development of 4G network systems,people informationsecurity requirements gradually increase. For all the wireless-related security technology,whether it is from atraditional wireless LAN access security to 802.1X authentication,or from the global system for mobile communicationsto 4G network security development,authentication technology is an important line of defense of the entire securitysystem,and has been a problem which is more concerned in the industry. How to solve the problems,such as the identityauthentication efficiency,compatibility,expansibility and user mobility of the network entity are very important. Basedon the logarithm problem of elliptic curve,we designed an identity authentication scheme which is suitable for 4Gnetwork security,and analyzed the security of the scheme.