一个代理盲签名方案的分析

前向安全无证书代理盲签名方案的分析与改进何滨;杜伟章【期刊名称】《计算机工程与应用》【年(卷),期】2013(000)022【摘要】通过对魏俊懿等人提出的一种前向安全的无证书代理盲签名方案进行安全性分析，发现该方案不能抵抗原始签名人的伪造攻击、不具有盲性。

针对上述问题，提出一种改进的方案。

通过对代理密钥生成过程以及盲签名过程的改进，克服了原方案存在的安全缺陷。

利用将单向散列链嵌入签名的方法，保证了改进的方案具有后向安全性。

而且，密钥生成中心与用户之间不需要建立可信的安全通道，节省了额外的开销。

安全分析表明，改进的方案满足前向安全无证书代理盲签名方案的安全要求。

%Through the security analysis of a forward secure certificateless proxy blind signature scheme proposed by Wei Junyi et al., it is found that the scheme does not resist the original signer’s forgery attack and does not satisfy the blindness. To address the above problems, an improved scheme is presented. The improved scheme overcomes the security drawbacks existing in the original scheme by improving the proxy key generation process and the blind signature process. The improved scheme also satisfies the backward security by embedding the one-way hash chain in the signature. Furthermore, there is no need to set up a confidential channel between key generation center and users, which reduces extra expense. The security analysis shows that the improvedscheme meets the security requirements of a forward secure certificateless proxy blind signature scheme.【总页数】6页(P104-109)【作者】何滨;杜伟章【作者单位】长沙理工大学计算机与通信工程学院，长沙 410114;长沙理工大学计算机与通信工程学院，长沙 410114【正文语种】中文【中图分类】TP309【相关文献】1.浅析前向安全无证书代理盲签名方案的改进 [J], 霍鑫;邢宾;李晓宁2.一种前向安全的无证书代理盲签名方案 [J], 魏俊懿;杨晓元;余丹3.对前向安全代理盲签名方案的分析与改进 [J], 廖小平4.一种基于无证书的前向安全代理盲签名方案 [J], 廖小平5.改进的具有前向安全性的无证书代理盲签名方案 [J], 姜昊堃;董学东;张成因版权原因，仅展示原文概要，查看原文内容请购买。

前向安全代理盲签名方案的分析及改进何滨;杜伟章【摘要】Through the security analysis of a forward secure proxy blind signature scheme proposed by Xiao Hongguang et al., it is pointed out that the scheme doesn’t resist the original signer’s forgery attack, which means a dishonest original signer is able to forge the proxy signing key. Meanwhile, the scheme doesn’t satisfy the untraceability and forward security. To solve the above problems, an improved scheme is presented. By improving the method of the delegate authorization and the process of blind signature, the improved scheme overcomes the security problems existing in the former scheme. Then based on discrete logarithm problem and quadratic residue problem, the security properties of unforgeability, strong blindness and forward security are analyzed. The analysis results show that the improved scheme satisfies the security requirements of a forward secure proxy blind signature scheme.%通过对肖红光等人提出的一种前向安全的代理盲签名方案进行安全性分析，指出该方案不能够抵抗原始签名人的伪造攻击，不诚实的原始签名人可以伪造代理签名密钥。

一种基于身份的门限盲代理盲签名方案付玮;刘广亮【期刊名称】《聊城大学学报（自然科学版）》【年(卷),期】2012(025)003【摘要】为了提高代理盲签名的实用性及安全性,结合秘密共享体制,在基于身份的密码体制下,提出一种新的盲代理盲签名方案.本方案中,我们将盲签名和代理签名结合,使得到的盲代理盲签名方案具有代理签名的权力委托和盲签名的消息匿名性和不可追踪性等特点;同时对代理签名者进行盲化,使得任何人不能从签名中知道代理签名者的身份.在基于身份的密码体制下,引入秘密共享机制,很好的防止了代理签名者权力滥用的问题.本方案具有更好的灵活性、更高的安全性等特性.%In order to improve the security and practicality of proxy blind signature,this paper introduces a blind-proxy blind signature scheme by adopting ID-based cryptography and secret sharing.In this scheme,the combination of proxy signature and blind signature can make the scheme has many characteristics,such as delegation of authority of proxy signature and the untraceability and anonymity of blind signature and so on.At the same time,blind the proxy signer make anyone can't know the identity of the proxy signers.Based on the identity cryptography,to introduce the secret sharing,will be good for solving the problem that the power of the proxy signers is too concentrated.SO this scheme has the better flexibility and higher security characteristics.【总页数】4页(P85-88)【作者】付玮;刘广亮【作者单位】聊城大学计算机学院,山东聊城252059;聊城大学计算机学院,山东聊城252059【正文语种】中文【中图分类】TP309【相关文献】1.一种基于无证书的门限盲代理盲签名方案 [J], 陈楠;张建中2.基于身份的门限代理盲签名方案 [J], 庄晨婕3.一种基于身份的门限盲签名方案 [J], 涂峰;赵一鸣4.基于身份的门限多代理多盲签名方案 [J], 杨长海5.一种新的基于身份的代理盲签名方案 [J], 梁林因版权原因，仅展示原文概要，查看原文内容请购买。

对前向安全代理盲签名方案的分析与改进廖小平【期刊名称】《计算机系统应用》【年(卷),期】2018(027)003【摘要】周萍等人提出了一个前向安全代理盲签名方案, 对该方案进行分析, 指出该方案存在信息拥有者可以否认签名的问题, 即信息拥有者否认用于签名的信息是自己提供的, 该信息可能是伪造的. 并在此基础上提出了改进的方案. 实验表明改进的方案不仅具有原方案的优良特性, 还解决了信息拥有者否认签名的问题.%Professor Zhou Ping,et al.has proposed a scheme of forward secure proxy blind signature.This study analyzes the scheme, and points out the problems that information owners can deny the signature scheme. That is, the owner denies that the signature information is provided by themselves, which may be fake. The improvement is put forward based on the above analysis. The experiment shows that the improved scheme not only keeps the excellent qualities of the original plan, but also solves the problem of the information owner's denial of signature.【总页数】4页(P217-220)【作者】廖小平【作者单位】四川文理学院智能制造学院, 达州 635000;达州智能制造产业技术研究院, 达州 635000【正文语种】中文【相关文献】1.前向安全代理盲签名方案的分析与改进 [J], 刘二根;王霞2.前向安全代理盲签名方案的分析及改进 [J], 何滨;杜伟章3.两个前向安全代理盲签名方案的分析与改进 [J], 胡江红4.一种基于无证书的前向安全代理盲签名方案 [J], 廖小平5.一个前向安全代理盲签名的安全性分析与改进 [J], 廖小平因版权原因，仅展示原文概要，查看原文内容请购买。

前向安全代理盲签名方案的分析与改进刘二根;王霞【摘要】通过对Manoj等人提出的前向安全的代理盲签名方案进行安全性分析，发现该方案在代理授权和代理盲签名阶段存在攻击伪造问题。

由此提出了改进的前向安全的基于离散对数的代理盲签名方案。

新方案在代理授权阶段将单向散列函数嵌入到短签名中，并改进了签名阶段，克服了原方案的缺陷。

在效率上，只比原方案多一次哈希运算，但具有更高的安全性，新方案满足可验证性、可区分性、不可伪造性、不可否认性等性质。

%Through the security analysis of the forward secure proxy blind signature scheme proposed by Manoj et al., this study found out that the scheme can not resist the forgery attack during proxy phase and signature gen-eration phase. In order to avoid these attacks, an improved forward secure proxy blind signature scheme was pre-sented based on DLP. The improved scheme overcame the drawbacks in the original scheme by embedding one-way hash function in short signature during proxy phase and improving signature generation phase. In the effi-ciency, the improved scheme was more secure with one more hash operation compared with the original scheme, which has verifiability, distinguishability, unforgeability, nonrepudiation, etc.【期刊名称】《华东交通大学学报》【年(卷),期】2015(000)006【总页数】5页(P110-114)【关键词】代理盲签名;前向安全;不可伪造性;代理密钥【作者】刘二根;王霞【作者单位】华东交通大学理学院，江西南昌 330013;华东交通大学理学院，江西南昌 330013【正文语种】中文【中图分类】TP3091982年，Chaum首次提出了盲签名的概念[1]。