摘要
网络环境中的某些应用(如匿名电子举报)要求数字签名同时具备签名者身份模糊性和签名不可传递性,而现存的签名方案都不能完全满足此类需求。为此,提出了一种新的签名方案即基于身份的不可传递性环签名方案,设计了一个基于双线性对的特殊哈希函数,并将该哈希函数引入到环签名中,使方案很好地满足了上述需求。形式化分析表明,方案生成的签名在随机预言模型(Random Oracle Model,ROM)下具有不可伪造性。
Some digital signature applications in Network Environment, e.g. an anonymous e - impeachment, has the requirement of guaranteeing both the signer - ambiguity and non - transferability, but most of the current signature schemes can not fully meet such requirements. The paper proposes a new scheme called Identity -based Non - transferability Ring Signature Scheme, in which a special hash function from bilinear pairing is constructed. Thus the scheme satisfies the above applications requirements. Formal analysis shows that the scheme is signer- ambiguous, non -transferable and non -forgeable in Random Oracle Model.
出处
《计算机仿真》
CSCD
北大核心
2009年第2期157-161,共5页
Computer Simulation
基金
由国家自然科学基金(60773037)
安徽省自然科学基金(070412045)
国家大学生创新计划(2008)
安徽省计算与通信软件重点实验室开放基金(2007)资助
关键词
基于身份
身份模糊性
不可传递性
环签名
Identity - based
Signer - ambiguous
non - transferable
Ring signature
