移动支付中签名算法与协议的设计与分析

发布时间：2018-05-30 15:23

本文选题：混沌映射 + 移动支付　；参考：《大连理工大学》2016年硕士论文

【摘要】：随着移动支付技术的普及,人类的日常生活变得方便快捷,通信和购物不再受到地点及时间的限制,移动支付的前景因此变得广阔。但在数字签名和移动支付协议方面,仍存在着安全性低和效率低的问题,针对以上问题,本文提出了改进的数字签名算法和基于密钥协商的移动支付协议。具体工作内容如下：(1)提出了一种对椭圆曲线数字签名算法(Elliptic Curve Digital Signature Algorithm, ECDSA)的改进算法,通过大量的对比实验,得出如下结论：本方案提高了数字签名算法的性能,并且降低了算法的计算复杂度,可以帮户移动端的用户更好的保护自己的隐私信息,防止恶意攻击者盗取、破坏移动用户的通信信息。(2)提出了一种基于扩展的Chebyshev混沌映射的密钥协商协议,新协议包含三个组成部分用户Ui,注册中心RC和服务器S。和其他协议相比,新协议包含对称加密、公钥加密、Chebyshev映射和哈希函数等算法,能够保证协议的安全性。(3)提出了一种基于密钥协商协议的移动支付协议,该协议基于对称密钥体制,在无线网络环境中适用。在本协议中,用户不需要进行大量的关于密钥的运算。通过对比实验,得出如下结论：本协议能够有效保证客户的隐私和交易信息的安全,充分的保证了支付协议中的各方安全需求,具有实际应用的价值。
[Abstract]:With the popularity of mobile payment technology, the daily life of human become convenient and fast, communication and shopping are no longer limited by location and time, so the prospect of mobile payment becomes broad. However, in the aspect of digital signature and mobile payment protocol, there are still some problems such as low security and low efficiency. In view of the above problems, this paper proposes an improved digital signature algorithm and a mobile payment protocol based on key agreement. The main work is as follows: (1) an improved algorithm for elliptic curve digital signature algorithm (Elliptic Curve Digital Signature Algorithm, ECDSA) is proposed. Through a large number of comparative experiments, the following conclusions are drawn: this scheme improves the performance of the digital signature algorithm. And reduce the computational complexity of the algorithm, can help mobile users to better protect their own privacy information, prevent malicious attackers steal, This paper proposes a key agreement protocol based on extended Chebyshev chaotic mapping. The new protocol consists of three components: user UI, registry RC and server Sid. Compared with other protocols, the new protocol includes symmetric encryption, public key encryption Chebyshev mapping and hash function, which can guarantee the security of the protocol. We propose a mobile payment protocol based on key agreement protocol. The protocol is based on symmetric key system and can be used in wireless network environment. In this protocol, users do not need to perform a large number of key operations. Through comparative experiments, the following conclusions are drawn: this protocol can effectively guarantee the privacy of customers and the security of transaction information, and fully ensure the security requirements of all parties in the payment protocol, which is of practical application value.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN918.91

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