一种基于自认证公钥体制思想的MANET网络密钥分发方案  

A KEY DISTRIBUTION SCHEME BASED ON SELF-CERTIFIED PUBLIC KEY SYSTEM FOR MANET NETWORKS

作　　者：肖自金 周海[1] 刘鹏辉[2] 吴丽珍[3] 

机构地区：[1]甘肃广播电视大学教务处甘肃兰州730030 [2]兰州理工大学计算机与通信学院甘肃兰州730050 [3]兰州理工大学电子工程与信息工程学院甘肃兰州730050

出　　处：《计算机应用与软件》2013年第6期154-158,235,共6页Computer Applications and Software

基　　金：甘肃省自然科学基金项目(0809RJZA019)

摘　　要：基于自认证公钥的密码系统在移动Ad Hoc网络等环境中具有良好的应用前景,提出一个无可信PKG(private key generator)的门限密钥分发方案。理论和仿真分析表明,该方案具有良好的容错性,实现了用户公钥和签名验证在逻辑单步内同时完成;克服了IBC(identity-based cryptosystem)方案中存在的密钥托管问题;达到了Girault提出的第Ⅲ级信任;与Li等类似方案相比,极大地节省了计算资源和网络带宽。The cryptography based on serf-certified public key system has good application prospect in environments such as Ad hoc networks. A threshold key distribution scheme without trusted private key generator （PKG） is proposed. The analysis and experimental result shows, this scheme, with good fault tolerance, can simultaneously verify the user＇ s public key and the signature within logical single step and solve the key escrow problem in IBC （identity-based cryptosystem） scheme, achieves trust level II! defined by Girault. Compared with other schemes such as Li＇ s, the proposed scheme reduces largely the cost of computation and communication.

关 键 词：密钥管理 自认证公钥 Ad HOC网络 密钥托管 群签名 双线性对 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TN918[自动化与计算机技术—计算机科学与技术]