环签名方案的分析与改进
发布时间：2018-10-30 13:03
【摘要】：环签名是在如何匿名泄露秘密的背景下提出的一种签名技术,它无需可信中心及签名者群建立的过程,且对于验证者来说签名人是完全匿名的,故环签名有时也被视为一种特殊的群签名.环签名在军事、经济等许多方面都有着重要的应用,如匿名泄露信息、电子投票系统、保护知识产权等.本文主要针对如下几个问题展开研究工作. 1.对张跃宇等人提出的环签名方案（也称做ZLW方案）进行了研究,发现其存在多已知签名的伪造性攻击,针对这种攻击方法,本文利用将哈希函数作用于随机数列上的方法,提出了一种新的环签名方案,分析结果表明新方案在更强的安全模型3下仍然是安全的. 2.对王玲玲等人提出的环签名方案（也称做WZM方案）进行了研究,发现原环签名方案中验证等式具有线性关系,故可以对其进行环成员改变攻击,针对这种攻击,本文利用将哈希函数作用于成员集上的方法,破坏了验证等式的线性关系,从而提出了一种新的环签名方案,分析结果表明新方案在安全模型3下仍然是安全的. 3.对基于环签名的密码学协议进行了研究,并分别提出了基于环签名的匿名电子投票方案和电子现金支付协议.这些协议都继承了环签名的匿名性特征,从根本上保证了它们可以应用于一些需要匿名性的特定环境.
[Abstract]:Ring signature is a kind of signature technology proposed under the background of how to leak secret anonymously. It does not need the process of establishing trusted center and signer group, and the signer is completely anonymous to verifier. Therefore, ring signature is sometimes regarded as a special group signature. Ring signature has important applications in military, economic and other fields, such as anonymous disclosure of information, electronic voting system, protection of intellectual property rights and so on. This paper focuses on the following issues. 1. In this paper, the ring signature scheme (also called ZLW scheme) proposed by Zhang Yueyu et al is studied, and it is found that there are many known signature forgery attacks. A new ring signature scheme is proposed. The analysis results show that the new scheme is still secure under the stronger security model 3. 2. The ring signature scheme proposed by Wang Lingling and others (also called WZM scheme) is studied. It is found that the verification equation in the original ring signature scheme has linear relation, so we can make ring member change attack on it, and aim at this kind of attack. In this paper, a new ring signature scheme is proposed by using the method that the hash function is applied on the member set, and the linear relation of the verification equation is broken. The analysis results show that the new scheme is still secure under the security model 3. 3. The cryptographic protocol based on ring signature is studied, and an anonymous electronic voting scheme based on ring signature and an electronic cash payment protocol are proposed respectively. These protocols all inherit the anonymous feature of ring signature and guarantee that they can be applied to some special environment which needs anonymity.
【学位授予单位】：黑龙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN918.91
本文编号：2300087
[Abstract]:Ring signature is a kind of signature technology proposed under the background of how to leak secret anonymously. It does not need the process of establishing trusted center and signer group, and the signer is completely anonymous to verifier. Therefore, ring signature is sometimes regarded as a special group signature. Ring signature has important applications in military, economic and other fields, such as anonymous disclosure of information, electronic voting system, protection of intellectual property rights and so on. This paper focuses on the following issues. 1. In this paper, the ring signature scheme (also called ZLW scheme) proposed by Zhang Yueyu et al is studied, and it is found that there are many known signature forgery attacks. A new ring signature scheme is proposed. The analysis results show that the new scheme is still secure under the stronger security model 3. 2. The ring signature scheme proposed by Wang Lingling and others (also called WZM scheme) is studied. It is found that the verification equation in the original ring signature scheme has linear relation, so we can make ring member change attack on it, and aim at this kind of attack. In this paper, a new ring signature scheme is proposed by using the method that the hash function is applied on the member set, and the linear relation of the verification equation is broken. The analysis results show that the new scheme is still secure under the security model 3. 3. The cryptographic protocol based on ring signature is studied, and an anonymous electronic voting scheme based on ring signature and an electronic cash payment protocol are proposed respectively. These protocols all inherit the anonymous feature of ring signature and guarantee that they can be applied to some special environment which needs anonymity.
【学位授予单位】：黑龙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN918.91
【参考文献】
相关期刊论文 前6条
1 王继林,张键红,王育民;基于环签名思想的一种类群签名方案[J];电子学报;2004年03期
2 黄欣沂;张福泰;伍玮;;一种基于身份的环签密方案[J];电子学报;2006年02期
3 王玲玲;张国印;马春光;;标准模型下基于双线性对的前向安全环签名方案[J];电子与信息学报;2009年02期
4 张国印;王玲玲;马春光;;环签名研究进展[J];通信学报;2007年05期
5 张跃宇;李晖;王育民;;标准模型下基于身份的环签名方案[J];通信学报;2008年04期
6 陈恺,魏仕民,肖国镇;电子现金系统的研究与发展[J];西安电子科技大学学报;2000年04期
，本文编号：2300087
本文链接：https://www.wllwen.com/falvlunwen/zhishichanquanfa/2300087.html
