一种改进的代理多重盲签名方案  

Improved proxy blind multi-signature scheme

作　　者：何宗耀[1] 

机构地区：[1]河南城建学院计算机科学与工程系,河南平顶山467036

出　　处：《河南城建学院学报》2011年第6期29-32,共4页Journal of Henan University of Urban Construction

基　　金：河南省教育厅自然科学研究计划项目(2010B120008);河南省重点科技攻关计划项目(102102210020)

摘　　要：通过对Lu等的代理多重盲签名方案进行分析,指出该方案不能抵抗原始签名人的伪造攻击,且签名可被追踪等不足之处。提出了一种改进方案,该方案在面对原始签名人的伪造攻击时,其安全性等价于解离散对数难题。同时,在签名提取阶段引入签名接收者的私钥,代理签名人无法将盲消息的签名和消息签名联系起来,使得签名不可被追踪。The security of the proxy blind multi-signature scheme which is proposed Lu et al is analyzed,and it is found that this scheme can＇t satisfy the properties of unforgeability and unlinkbility.This paper presents an improved scheme which can be against the original singer＇s universal forgery attack.The receiver＇s private key is introduced in the extraction phase of the improved scheme,because the proxy signer can not make a linkage between the signature on message and the signature on corresponding blind message.Consequently,the improved scheme also has the property of unlinkbility.

关 键 词：代理签名 盲签名 多重签名 代理多重盲签名 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]