摘要
提出一个可证安全的无证书代理签名方案。该方案满足代理签名所有的安全性质。在随机预言模型下,给出了它正式的安全证明。它的安全性基于计算Diffie-Hellman问题的困难性。同时,在该代理签名方案的基础上,给出了无证书代理盲签名方案。
In this paper,a provably secure certificateless proxy signature scheme is presented.It satisfies all the properties required for a proxy signature.This paper provides complete security proofs for the proxy signature scheme.The scheme is proved secure in the random oracle model with the assumption that the computational Diffie-Hellman problem is infeasible.At the same time,this paper puts forward a certificateless proxy blind signature scheme,which is based on the proxy signature scheme.
出处
《计算机工程与应用》
CSCD
北大核心
2009年第10期92-97,105,共7页
Computer Engineering and Applications
基金
江苏省自然科学基金No.2003101SBRB231
国家"211工程"建设项目No.181070H901~~
关键词
无证书密码系统
代理签名
盲签名
随机预言器
certificateless cryptography proxy signature blind signature random oracle
