一种基于ECDLP有身份认证的ECDH密钥协商方案  

One ECDH key agreement scheme with authentication based on ECDLP

作　　者：曹阳[1] 郝玉洁[2] 洪歧[1] 

机构地区：[1]陕西理工学院计算机系,陕西汉中723000 [2]电子科技大学计算机学院,四川成都610051

出　　处：《重庆邮电大学学报（自然科学版）》2012年第1期118-120,126,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：陕西理工学院科研基金(SLGKY10-09);陕西省教育厅科研专项基金(11JK0477)~~

摘　　要：为了解决ECDH(elliptic curve key agreement scheme-diffice-hellman version)密钥协商方案中,通信双方在公开信道上通过协议协商会话的临时密钥及双方都不能识别对方身份的问题。在研究ECDH密钥协商算法的基础上,提出了一种基于安全椭圆曲线离散对数问题的有身份认证的ECDH密钥协商方案。该方案可以实现密钥协商双方的双向身份认证,有效地防止了中间人的攻击。通过对密钥协商消息的双重保护,实现了公开信道上安全通信。In order to solve the problem that in ECDH key agreement scheme,the two communicating sides agree negotiation in the public channel with temporary key but they can not identify each other,this paper first analyses the ECDH key agreement algorithm,and then proposes an ECDH key agreement scheme with authentication based on discrete logarithm.This scheme can realize bi-directional authentication,effectively prevent intermediary attackers,and realize secure communications on the public channel through the dual protection of the key agreement messages.

关 键 词：椭圆曲线离数对数问题(ECDLP) 椭圆曲线密钥协商方案(ECDH) 身份认证 密钥协商 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]