电子商务中电子支付协议的设计与研究

发布时间：2019-01-01 16:21

【摘要】：随着网络的发展与普及,电子商务也得到了飞速的发展,在人们的生活与工作中扮演着越来越重要的角色。但是,由于网络本身所具有的各种缺陷,导致了依赖于网络的电子商务系统也必将会受到各种挑战。而作为电子商务核心环节之一的电子支付,提高它的安全性、实用性与效率是促进电子商务快速发展的关键。本文主要探讨密码学的各种典型技术以及它们在电子支付中的具体应用,并提出具体的协议来解决现实生活的电子支付的某些具体问题。首先,对应用在电子商务与电子支付中的各种数据加密技术进行了研究,包括对称加密DES与非对称加密RSA,并比较各自的优缺点,提出了综合使用DES与RSA数据加密的方案。其次,具体研究了数字签名,单向Hash函数,信息的完整性验证,零知识证明以及它们在电子商务与电子支付中的具体应用。再次,在经典RSA盲签名的电子现金协议基础上,提出了一种基于RSA盲签名与可信第三方的电子现金支付协议,该协议具有可撤销匿名、不可伪造、不可重复使用等特点。最后,在现有的一个电子现金协议的基础上,设计了一个基于盲签名与零知识认证的电子现金支付系统,它提供了可撤销匿名性与有效防止非法用户冒充合法用户申请与使用电子现金的功能。
[Abstract]:With the development and popularization of network, electronic commerce has also been developed rapidly, which plays a more and more important role in people's life and work. However, due to the shortcomings of the network itself, the electronic commerce system which depends on the network will be challenged. As one of the core links of electronic commerce, electronic payment improves its security, practicability and efficiency is the key to promote the rapid development of electronic commerce. This paper mainly discusses various typical techniques of cryptography and their specific applications in electronic payment, and puts forward specific protocols to solve some specific problems of electronic payment in real life. Firstly, various data encryption techniques applied in electronic commerce and electronic payment are studied, including symmetrical encryption DES and asymmetric encrypted RSA, and their advantages and disadvantages are compared, and a scheme of combining DES and RSA data encryption is put forward. Secondly, digital signature, unidirectional Hash function, information integrity verification, zero knowledge proof and their application in electronic commerce and electronic payment are studied. Thirdly, an electronic cash payment protocol based on RSA blind signature and trusted third party is proposed on the basis of the classical RSA blind signature. Finally, an electronic cash payment system based on blind signature and zero knowledge authentication is designed based on an existing electronic cash protocol. It provides the function of cancelling anonymity and effectively preventing illegal users from applying for and using electronic cash as legitimate users.
【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TP393.08

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