摘要
利用Schnorr零知识认证机制,给出了一个构造可否认群密钥协商协议的一般化构造方法。可以将这个一般化方法看作一个编译器,通过增加两轮的数据通信轮和一轮的数据验证轮,它可以将一个非认证的群密钥协商协议转化为一个可否认的群密钥协商协议。在协议轮数和计算量上并没有显著的增加,是一个高效的转化方式。在Random Oracle模型下给出了其安全证明和可否认性证明,一并给出的还有一个应用此编译器转化的具体实例。
A generic way to construct a deniable group key establishment protocol from an unauthenticated group key es-tablishment protocol was proposed.The construction could be seen as a compiler.By using Schnorr's zero-knowledge identification scheme,this compiler could transform an unauthenticated group key establishment to a deniable group key establishment protocol with only additional two round communications and one round verification.It is very efficient and practical.The security and deniability proof is in the Random Oracle model.A concrete transforming example of the con-struction was also presented.
出处
《通信学报》
EI
CSCD
北大核心
2011年第3期143-149,共7页
Journal on Communications
基金
国家重点基础研究发展计划("973"计划)基金资助项目(2007CB311201)
国家高技术研究发展计划("863"计划)基金资助项目(2006AA01Z427)
国家自然科学基金资助项目(60673073
60970153)~~