摘要
基于椭圆曲线上的无双线性对密钥协商协议以其良好的安全性和执行效率在信息安全领域中得到广泛应用,文章分析了3个基于椭圆曲线上的无双线性对密钥协商协议,指出其在安全性上存在的缺陷,分别对这3个协议进行私钥替换攻击、临时密钥泄露攻击、部分秘密信息泄露攻击等攻击,并基于椭圆曲线离散对数问题对其中1个群组密钥协商协议进行改进。此外,通过协议对比,改进的协议安全性更强,效率比其他有双线性对的群组密钥协商协议更高。
The pairing-free key authenticated agreement protocol over elliptic curves is widely used in the information security field for its good security and execution efficiency.The paper analyzes the security of three pairing-free authenticated key agreement protocolsover elliptic curves.It points out its flaws in the nature of securityand provides private key replacement attack,ephemeral key leakage attack,partial secret information leakage attack and other attack methods to these three protocols respectively,and one of group key agreement protocol is improved based on the elliptic curve discrete logarithm problem.In addition,through protocol comparison,the improved protocol is more secure and more efficient than other group key agreement protocols with bilinear pairing.
作者
程庆丰
阮展靖
张瑞杰
CHENG Qingfeng;RUAN Zhanjing;ZHANG Ruijie(Information Engineering University,Zhengzhou Henan 450002,China;State Key Laboratory of Mathematics Engineering and Advanced Computing,Zhengzhou Henan 450002,China)
出处
《信息网络安全》
CSCD
北大核心
2019年第1期16-26,共11页
Netinfo Security
基金
国家自然科学基金[61872449]
国家自然科学基金青年基金[61501515]
作者简介
通信作者:程庆丰(1979-),男,辽宁,副教授,博士,主要研究方向为密码学和信息安全,qingfengc2008@sina.com;阮展靖(1996-),男,广西,本科,主要研究方向为密码学和信息安全;张瑞杰(1984-),女,河南,讲师,博士,主要研究方向为智能信息处理。
