一种基于单向环同态的多签名体制  

An Efficient Multisignature Scheme Based on the OneWay Algebraic Homomorphism

作　　者：李小杰[1] 杨义先[1] 

机构地区：[1]北京邮电大学信息工程系

出　　处：《北京邮电大学学报》1998年第2期76-79,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家杰出青年基金;国家教委跨世纪优秀人才专项基金;国家"863计划"资助

摘　　要：指出了Ｅ．Ｃｈｉｄａ等设计的多签名体制所存在的缺陷，即该体制不能抵抗内部攻击，并在单向环同态的基础上提出了一种改进的多签名体制．其安全强度不亚于改进的ＤＳＡ，极大的提高了原有ＣＮＯＳ多签名方案的安全性．A weakness in a multisignature scheme designed by E.Chida is pointed out here, this scheme is not strong enough to resist the internal attack. And an improved multisignature scheme based on the oneway algebraic homomorphism is presented and its security level is as same as DSA signature scheme at least.

关 键 词：密码学 数字多签名 单向环同态 

分 类 号：TN918.2[电子电信—通信与信息系统]