摘要
使用椭圆曲线上的映射对构造基于身份的确认签名(也是不可否认签名),最早由Han S等人提出.然而, Zhang F等人证明Han S的签名是不安全的.本文对Han S的方案进行了修改,构造了使用椭圆曲线上映射对和零知识证明的基于身份的不可否认签名方案,且证明了它是安全的.
Identity-based confirmer signatures from pairings over elliptic curves, also known as identity-based undeniable signatures, were first proposed by Han S et al. However, Zhang F et al showed that these signature schemes are insecure. This paper proposes a modified signature scheme based on zero-knowledge, and proves its security.
出处
《深圳大学学报(理工版)》
EI
CAS
北大核心
2006年第1期85-89,共5页
Journal of Shenzhen University(Science and Engineering)
基金
国家自然科学基金资助项目(10371127)
中国科学院软件所创新基金资助项目(CXK46668)
关键词
密码学
不可否认签名
零知识
双线性对
cryptology
undeniable signature
zero-knowledge
bilinear pairing.