基于身份的(t,n)门限盲签名方案  

ID-based(t,n) threshold blind signature scheme

作　　者：农强[1] 郝艳华[1] 吴顺祥[2] 

机构地区：[1]漳州师范学院计算机科学与工程系,福建漳州363000 [2]厦门大学自动化系,福建厦门361005

出　　处：《计算机工程与设计》2009年第5期1068-1070,1073,共4页Computer Engineering and Design

基　　金：国家“十一五”科技支撑计划基金项目(2007BAK34B04);国家自然科学基金项目(60704042);福建省青年科技人才创新基金项目(2008F3110);福建省教育厅科技基金项目(JA08156)。

摘　　要：利用双线性对理论和可验证的秘密共享技术,提出了一种新的基于身份的门限盲签名方案,能够防止私钥生成器(private key generator,PKG)伪造签名。它有效地实现了门限签名与盲签名的结合,使盲签名在电子选举和电子现金支付业务中更加安全有效。到目前为止,该方案是第一类用双线性对来构造的基于身份的门限盲签名方案。分析结果表明,该方案具有盲性、不可伪造性和强壮性等特性,与已提出的门限盲签名方案相比,该方案具有更高的安全性和效率。A new ID-based threshold blind signature scheme based on bilinear pairings is proposed using the technique of verifiable secret sharing scheme, the dishonest private key generator can not impersonate any user at any time. The threshold signature and blind signature are implemented effectively to make blind signature more secure and effetive in electric business and cash charge business. Up to now, it is the first pairing-based cryptography on ID-based threshold blind signature. Analysis shows that the proposed scheme has provable security properties of blindness, unforgeability and robustness. Furthermore, it is more efficient compared with the previous schemes.

关 键 词：基于身份 门限签名 盲签名 双线性对 椭圆曲线 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]