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一种新型的面向电子邮件的公平不可否认协议

发表时间:2008-06-30  浏览量:2071  下载量:843
全部作者: 王洁, 吴开贵
作者单位: 重庆大学计算机学院
摘 要: 在安全数据传输协议中,发送方和接受方的非否认性和公平性、消息的保密性以及效率都非常重要。通常是采用数据传输中的双方非否认协议来达到这个目的。数据签名技术的使用保证了通信双方的不可否认性和数据完整性。近年来,实现这种类型的密码协议主要通过可信第三方参与数据的加密和传送,因而可信第三方的可靠性和安全性是系统性能的瓶颈。本文在克服可证实电子邮件协议(CMP1)缺陷的基础上,提出了一种新的公平非否认电子邮件协议。经过改进后的协议满足非否认性、公平性原则和抗重放攻击,并保证消息只被通信双方知道,可广泛应用于电子邮件、电子合同等电子商务中。
关 键 词: 数据安全与计算机安全;非否认性;公平性;保密性;数字签名
Title: A new fair non-repudiation protocol for e-mail
Author: WANG Jie, WU Kaigui
Organization: College of Computer Science, Chongqing University
Abstract: The non-repudiation and fairness of sender and receiver and the confidentiality and efficiency of information are very important in secure data transport protocol. It has been usually implemented by non-reputation protocol used during data transmission. Using data signature technology insures the non-repudiation and data integrality. In these years, this type of cipher protocol is actualized by data encrypt and sending which a trusted third part participates in. Therefore, reliability and security of the trusted third party are the bottleneck of system performance. In this paper, a new fair non-repudiation protocol is presented based on the correction of CMP1 protocol which has some flaws. The new protocol can achieve non-reputation, fairness and anti-replay attack and also can insure that messages can be known only by correspondence principals, which can be widely applied in e-mail, e-contract and other e-business.
Key words: data security and computer security; non-repudiation; fairness; confidentiality; digital signature
发表期数: 2008年10月第12期
引用格式: 王洁, 吴开贵. 一种新型的面向电子邮件的公平不可否认协议[J]. 中国科技论文在线精品论文,2008,1(12):1419-1423.
 
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