一种基于身份标识的MANET组密钥协商协议  

A New ID-Based MANET Group Key Agreement Protocol

作　　者：宋震[1] 周贤伟[2] 窦文华[1] 

机构地区：[1]国防科技大学计算机学院,湖南长沙410073 [2]北京科技大学信息工程学院,北京100083

出　　处：《电子学报》2008年第10期1862-1868,共7页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60573050,60603061)

摘　　要：组密钥是安全组通信中实现信息机密性和完整性的关键.适应于MANET有限的计算、通信资源,MANET组密钥管理协议应具有较少的计算量,较低的运算强度.分析了MANET组密钥管理方案所应具备的性质;结合固定网络环境下具有最小通信量的组密钥协商协议STR协议及基于身份标识的公钥密码技术,提出了一个基于身份标识的贡献式MANET组密钥协商管理协议CEAGKP,具有较小的通信量、较强的安全性与可扩展性,能够很好地适应MANET环境的要求.仿真结果证明了CEAGKP具有较好的伸缩性.Confidentiality and Integrity are realized by the group key in secure group communications. Adapt to the limited computation and communication resources, the group key management protocol in MANET environment should have less computation and less complexity. The necessary properly that the group key management protocol should have is analyzed. A new ID-based group key agreement protocol CEAGKP is put forward by introducing the key tree of STR protocol that has minimum traffic in fixed network environment combined with the ID-based public key cryptography. The protocol has strong security and scalability at less traffic and well suits the requirement of MANET. The simulation proves that CEAGKP scales well in MANET.

关 键 词：MANET 身份标识 组密钥 协商 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]