两种代理签名方案及其应用

发布时间：2018-02-24 07:01

本文关键词： 代理签名公钥密码体制无证书密码体制基于身份密码体制可证安全随机预言机模型　出处：《华东交通大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着计算机软件和硬件技术的发展,网络在生活中的应用程度越来越深,人类的各项活动已经离不开网络。然而互联网的共享性以及网络间各种不安全网点的接入,导致了信息交互的不安全,给不法分子带来了可乘之机。信息安全问题已经成为全民迫切需要解决的问题。数字签名[1]是一种认证技术,具有不可伪造性,保证了消息在传递过程中的完整性,是密码学中解决信息安全问题最直接有效的方法之一。与一般的数字签名相比,代理签名具有签名权利委托的功能,解决了签名者不能及时到场的情况。本文的主要研究对象是代理签名方案及其应用。首先,从代理签名的相关概念出发,分析了代理签名的性质,并在两种公钥密码体制下对具体的代理签名方案进行安全性和效率分析。文献[58]结合基于身份公钥密码体制构造了一个代理签名方案。文献[59]在无证书公钥密码体制的基础上提出了一个具体的代理签名方案。安全性分析表明,两种方案都存在安全性问题。其次,针对文献[58]和文献[59]中方案的缺陷进行改进,分别在两种公钥密码体制下提出新的代理签名方案,新方案在保证安全性的前提下,做出了效率上的改进,并分析了方案的可行性。电子商务(Electronic Commerce)是随着网络通信技术的发展而出现的一种新型商务运营模式。电子商务的出现给消费者和商户们都带来了前所未有的便捷,促进了经济的发展,成为现代购物模式的新潮流。移动代理(Mobile Agent)是一种新型代理模式,通过网络连接主机和各代理之间的通信,有效地实现了资源配置。最后,根据代理签名的性质研究了具体的代理签名方案在电子商务和移动代理通信协议中的应用。
[Abstract]:With the development of computer software and hardware technology, the application of network in daily life is getting deeper and deeper. Human activities have been inseparable from the network. The problem of information security has become an urgent problem to be solved by the whole people. Digital signature [1] is a kind of authentication technology, which is unforgeable. It is one of the most direct and effective methods to solve the problem of information security in cryptography. Compared with general digital signature, proxy signature has the function of signing right delegate. The main research object of this paper is proxy signature scheme and its application. Firstly, the properties of proxy signature are analyzed from the related concepts of proxy signature. The security and efficiency of the specific proxy signature schemes are analyzed under two public key cryptosystems. A proxy signature scheme is constructed by combining the identity-based public key cryptosystem with literature [58]. [59] in the absence of certificate public key cryptosystem, a proxy signature scheme is constructed. A specific proxy signature scheme is proposed on the basis of the proposed scheme. The security analysis shows that, Secondly, aiming at the defects of the schemes in [58] and [59], we propose a new proxy signature scheme under two public key cryptosystems. Improved efficiency, Electronic Commerce is a new business operation mode with the development of network communication technology. The emergence of electronic commerce has brought unprecedented convenience to consumers and merchants. Mobile Agent Mobile Agent (Mobile Agent) is a new kind of agent mode, which realizes the allocation of resources effectively through the communication between the host computer and the agents. According to the nature of proxy signature, the application of proxy signature scheme in electronic commerce and mobile agent communication protocol is studied.
【学位授予单位】：华东交通大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN918.91

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