强指定验证者签名方案的研究
发布时间：2018-11-03 19:45
【摘要】：通常情况下,数字签名具有公开可验证性,即任何用户都可以验证数字签名的合法性。但有的时候,签名的消息可能会涉及一些签名者的隐私信息(例如:医疗隐私和购物信息),如果这些消息的签名被公开验证,将会泄露了签名者的隐私信息,从而对签名者带来不好的影响。指定验证者签名很好地解决了这个问题,由于在指定验证者签名中,签名者(Alice)指定一个可信赖的验证者(Bob)去验证签名的有效性,被指定的验证者(Bob)不能向任何第三方证明签名的有效性,也不能让第三方相信这个签名是由Alice生成的,因为被指定的验证者(Bob)也可以生成该消息的一个合法签名。为了避免中间人截取签名信息,强指定验证者签名被提出来。它是指只有拥有指定验证者的私钥才能验证签名的正确性,并且被指定验证者也可模拟生成一个与原始签名具有相同分布的签名副本。强指定验证者签名在保证签名的认证性的基础上,还保护签名者的隐私。因此,强指定验证者签名在保护签名者的隐私方面具有重要的作用。本文从签名权的非授权性、异构下的强指定验证者签名、抵抗合谋攻击的无证书指定验证者代理签名三个方面进行研究,并取得了如下三方面成果:1.针对Zhang J等人提出的非授权的强指定验证者签名方案不满足非授权性和健壮性等缺陷,提出了一个改进的非授权的强指定验证者签名方案。提出的方案满足健壮性和非授权性。2.受异构签密思想的启发,提出了一个双向的异构下强指定验证者签名方案,即基于公钥基础设施(PKI)和基于身份的公钥密码体制(IBC)两套密码系统之间的强指定验证者签名方案。提出的方案满足指定验证者的签名方案的安全性要求,其中不包括非授权性。3.对刘晓红等人提出的无证书代理签名方案的安全性进行了分析,发现其易遭受恶意KGC攻击、原始签名人和KGC的合谋攻击,以及代理签名人和KGC的合谋攻击。提出了一个改进无证书代理签名方案,并结合强指定验证者签名的思想,提出了一个无证书强指定验证者代理签名方案。安全性分析表明,提出的方案能抵抗两类敌手的攻击与合谋攻击,同时也满足强指定验证者签名的安全性要求。
[Abstract]:In general, digital signature is publicly verifiable, that is, any user can verify the validity of digital signature. However, sometimes the signed message may involve some signer's privacy information (e.g., medical privacy and shopping information), and if the signature of these messages is publicly verified, it will reveal the signer's privacy information. This will bring bad influence to the signer. Specifying the verifier signature solves this problem well, because in the designated verifier signature, the signer (Alice) specifies a trusted verifier (Bob) to verify the validity of the signature. The designated verifier (Bob) cannot prove the validity of the signature to any third party or convince the third party that the signature was generated by Alice because the designated verifier (Bob) can also generate a legal signature of the message. In order to prevent the middleman from intercepting signature information, the strongly designated verifier signature is proposed. It means that only the private key of the designated verifier can verify the correctness of the signature, and the designated verifier can also simulate the generation of a copy of the signature with the same distribution as the original signature. The strongly specified verifier signature also protects the signer's privacy on the basis of the authentication of the signature. Therefore, strongly specified verifier signature plays an important role in protecting the signer's privacy. In this paper, the non-authorization of signature right, the signature of strong designated verifier under heterogeneity, and the proxy signature of non-certificated designated verifier who resist collusion attack are studied. The results are as follows: 1. An improved strongly designated verifier signature scheme proposed by Zhang J et al is proposed to solve the problem that the unauthorized strongly designated verifier signature scheme does not satisfy the requirements of non-authorization and robustness. The proposed scheme meets the requirements of robustness and non-authorization. 2. Inspired by the idea of heterogeneous signcryption, a bidirectional strongly specified verifier signature scheme is proposed. That is, a strong designated verifier signature scheme between (PKI) and (IBC), which is based on public key infrastructure (PKI) and identity-based public key cryptosystem (IBC). The proposed scheme meets the security requirements of the designated verifier signature scheme, which does not include unauthorized. 3. 3. This paper analyzes the security of the certificateless proxy signature scheme proposed by Liu Xiaohong et al. It is found that the scheme is vulnerable to malicious KGC attacks, collusion attacks between original signers and KGC, and collusion attacks between proxy signers and KGC. In this paper, an improved proxy signature scheme without certificates is proposed. Combining with the idea of strongly designated verifier signature, a proxy signature scheme with no certificate is proposed. The security analysis shows that the proposed scheme can resist two kinds of enemy attacks and collusion attacks, and it also meets the security requirements of strongly designated verifier signatures.
【学位授予单位】：西华大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN918.91
本文编号：2308813
[Abstract]:In general, digital signature is publicly verifiable, that is, any user can verify the validity of digital signature. However, sometimes the signed message may involve some signer's privacy information (e.g., medical privacy and shopping information), and if the signature of these messages is publicly verified, it will reveal the signer's privacy information. This will bring bad influence to the signer. Specifying the verifier signature solves this problem well, because in the designated verifier signature, the signer (Alice) specifies a trusted verifier (Bob) to verify the validity of the signature. The designated verifier (Bob) cannot prove the validity of the signature to any third party or convince the third party that the signature was generated by Alice because the designated verifier (Bob) can also generate a legal signature of the message. In order to prevent the middleman from intercepting signature information, the strongly designated verifier signature is proposed. It means that only the private key of the designated verifier can verify the correctness of the signature, and the designated verifier can also simulate the generation of a copy of the signature with the same distribution as the original signature. The strongly specified verifier signature also protects the signer's privacy on the basis of the authentication of the signature. Therefore, strongly specified verifier signature plays an important role in protecting the signer's privacy. In this paper, the non-authorization of signature right, the signature of strong designated verifier under heterogeneity, and the proxy signature of non-certificated designated verifier who resist collusion attack are studied. The results are as follows: 1. An improved strongly designated verifier signature scheme proposed by Zhang J et al is proposed to solve the problem that the unauthorized strongly designated verifier signature scheme does not satisfy the requirements of non-authorization and robustness. The proposed scheme meets the requirements of robustness and non-authorization. 2. Inspired by the idea of heterogeneous signcryption, a bidirectional strongly specified verifier signature scheme is proposed. That is, a strong designated verifier signature scheme between (PKI) and (IBC), which is based on public key infrastructure (PKI) and identity-based public key cryptosystem (IBC). The proposed scheme meets the security requirements of the designated verifier signature scheme, which does not include unauthorized. 3. 3. This paper analyzes the security of the certificateless proxy signature scheme proposed by Liu Xiaohong et al. It is found that the scheme is vulnerable to malicious KGC attacks, collusion attacks between original signers and KGC, and collusion attacks between proxy signers and KGC. In this paper, an improved proxy signature scheme without certificates is proposed. Combining with the idea of strongly designated verifier signature, a proxy signature scheme with no certificate is proposed. The security analysis shows that the proposed scheme can resist two kinds of enemy attacks and collusion attacks, and it also meets the security requirements of strongly designated verifier signatures.
【学位授予单位】：西华大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN918.91
【参考文献】
相关期刊论文 前10条
1 杜红珍;温巧燕;;无证书强指定验证者多重签名[J];通信学报;2016年06期
2 葛丽霞;李哠;何明星;李亚荣;刘晓剑;;一个改进的无证书代理签名方案[J];计算机工程与应用;2017年08期
3 刘唐;汪小芬;丁雪峰;;一个无证书强指定验证者签名方案的安全性分析与改进[J];计算机科学;2013年07期
4 崔涛;刘培玉;李凤银;;强不可否认的指定验证者代理签名方案[J];计算机应用研究;2011年12期
5 梁景玲;高德智;张云;葛荣亮;;基于无证书的具有指定验证者的代理签名方案[J];电子设计工程;2011年12期
6 王勇兵;张学亮;仇宾;;一种新的基于身份的代理签名方案[J];计算机工程;2011年07期
7 廖永建;SUSILO Willy;陈抗生;;强指定验证者签名的不可授权性[J];浙江大学学报(工学版);2009年02期
8 明洋;王育民;;无随机预言机下的指定验证者代理签名方案[J];电子与信息学报;2008年03期
9 ;Certificateless universal designated verifier signature schemes[J];The Journal of China Universities of Posts and Telecommunications;2007年03期
10 王波;王尚平;王晓峰;赵男;王娟;;基于身份的指定验证者代理签名方案[J];计算机应用研究;2007年07期
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