两种代理盲签名方案的安全性分析  

Security Analysis of Two Proxy Blind Signature Schemes

作　　者：韩春霞[1,2] 王琳杰[1,2] 

机构地区：[1]铜仁学院数学与计算机科学系,贵州铜仁554300 [2]铜仁学院计算机应用技术研究所,贵州铜仁554300

出　　处：《科技信息》2013年第23期53-53,61,共2页Science & Technology Information

基　　金：贵州省联合基金(黔科合J字LKT[2012]16号);铜仁市科技计划项目(铜市科研(2013)9-8号)研究成果

摘　　要：文献[4]、[5]设计出各自的代理盲签名方案,旨在克服伪造攻击。通过对这两个方案进行分析,提出了一个伪造攻击方法。任何人都可以用该攻击方式欺骗代理签名者并让其产生有效的签名,从而表明该方案不安全。该伪造攻击的提出,为设计新的代理盲签名方案提供有效的参考。Two proxy blind signatures were designed in literature [4],[5], in which was introduced to overcome forgery attacks. In this paper, we present a forgery attack approach against their vulnerabilities after analyzing these two schemes, the approach can be used by anyone to deceive the attack the proxy signer and let its produce a valid signature, so that it demonstrates these two schemes are not secure. What we done provides some references to the researchers on designing new proxy blind signatures.

关 键 词：伪造攻击 原始签名者 代理盲签名 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]