基于ID的认证及密钥协商协议  

Identity(ID)-based authentication and the key agreement protocol

作　　者：孙纪敏[1] 孙玉[2] 张思东[1] 裴庆祺[3] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]中国电子科技集团公司第54研究所,河北石家庄050002 [3]西安电子科技大学计算机网络与信息安全教育部重点实验室,陕西西安710071

出　　处：《西安电子科技大学学报》2008年第3期559-562,共4页Journal of Xidian University

基　　金：国家自然科学基金(60633020,60672112)

摘　　要：在改进现有签密技术的基础上,基于身份(ID)的公钥密码系统,提出了一个基于ID的认证及密钥协商协议.该协议能够有效地解决传统公钥系统需要进行证书的传递和验证问题,同时,还具有完备的前向保密性,即使参与者的私钥被泄漏,也不会影响之前所协商共享密钥的安全性.分析发现,本认证及密钥协商方案具有更高的安全性和有效性,能更好地满足应用需求.Based on an improved signcryption technique and the ID-based public key cryptosystem, a new authentication and key agreement protocol is proposed. The problem of passing and verifying the certificate needed in the traditional public key cryptosystem is well resolved. At the same time, the proposed protocol offers perfect forward secrecy. That is to say, even if the private key of the participant is exposed, the security of the negotiated keys does not suffer. Analysis shows that the proposed ID-based authentication and key agreement protocol is more secure and effective and more applicable than the others.

关 键 词：签密 基于身份的公钥密码系统 前向保密性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]