摘要
AKey是3GPP2网络中安全协议的根密钥,用于生成子密钥。其安全性对整个系统的安全至关重要。3GPP2采用OTASP技术利用Diffie-Hellman密钥交换协议协商AKey。在分析AKey交换过程和AKey计算方法基础上,研究该机制的安全性,并提出可能的改进措施。
A Key is the root key of3GPP2network and used to generate the sub keys for voice,data and signaling privacy.A Key is currently generated and distributed by OTASP with Diffie-Hellman key exchange protocol according to3GPP2specifications.Based on the analysis of the exchange and calculation mechanism of A Key,the security features are studied,and some improvements are proposed.
出处
《计算机工程与应用》
CSCD
北大核心
2003年第35期10-12,16,共4页
Computer Engineering and Applications
基金
国家973基础研究发展规划资助项目(编号:G1999035805)
国家自然科学基金资助项目(编号:90204017)
