摘要
利用双线性映射设计出一个有效的无证书多级代理签名方案。在最强的安全模型下,方案给出了正式的安全证明。它的安全性基于计算Diffie-Hellman问题的困难性。所提出的方案满足诸如可验证性、不可否认性、可识别性、防止签名滥用等安全性质。该多级代理签名方案具有前向可追踪性和后向扩展的灵活性。鉴于方案的安全、高效和灵活的优点,它可广泛应用于电子商务、移动代理系统等方面。
This paper proposed a construction of traceable multi-level proxy signature scheme in certificateless setting using bilinear maps.The security of proposed scheme was based on the infeasibility of the computational Diffie-Hellman problem and proved formally in the strongest security model of certificateless proxy signature schemes.The scheme satisfied the security requirements such as verifiability,undeniability,identifiability and prevention of misuse for a proxy signature scheme.This multi-level proxy signature scheme possessed the forward traceability and the flexibility of backward expansion.Due to its security,high efficiency and flexibility,it could practically applicate in electronic commerce and mobile agent systems,etc.
出处
《计算机应用研究》
CSCD
北大核心
2013年第6期1835-1839,共5页
Application Research of Computers
基金
国家自然科学基金资助项目(60673070)
安徽省自然科学基金资助项目(1208085MF108
1208085QF119)
安徽省高校自然科学基金资助项目(KJ2012B157)
关键词
无证书密码系统
代理签名
多级代理签名
不可伪造性
certificateless cryptography system
proxy signature
multi-level proxy signature
unforgeable
