摘要
首先分析研究了ＧＳＭ（Ｇｌｏｂａｌｓｙｓｔｅｍ ｆｏｒ ｍ ｏｂｉｌｅ）数字移动通信系统的安全技术，特别是有关用户鉴权与密钥分配的协议，然后以改进的ＦＥＡＬ算法为核心，构造了一个２Ｍ 比特并联杂凑ＦＥＡＬ－４（Ｘ）Ｓ加密算法，实现了ＧＳＭ 数字移动通信系统的身份认证与密钥分配的Ａ３／Ａ８ 算法。本文对该组加密算法及其性能进行了详细分析，并给出了在计算机上模拟的结果。
The security technology used for the protocol of user authentication and secure key distribution in GMS mobile communication system is described and discussed. The modified fast encipher algorithm (FEAL) is used as a core algorithm for dual hash function FEAL 4(X)S encipher algorithm with 2M bits to realize A3/A8 algorithm for user authentication and secure key distribution in GMM mobile system. The performance of this algorithm is discussed, and the simulation results are given.
出处
《数据采集与处理》
CSCD
1999年第4期438-442,共5页
Journal of Data Acquisition and Processing
关键词
移动通信
用户鉴权
算法
GSM
密码理论
digital mobile communication system
security technology for communication system
cryptogram theorem
FEAL encipher algorithm
