可追踪的无证书多级代理签名方案  

Traceable multi-level proxy signature scheme in certificateless cryptography

作　　者：陈虎[1,2] 魏仕民[1] 朱昌杰[1] 宋万干[1] 

机构地区：[1]淮北师范大学计算机科学与技术学院,安徽淮北235000 [2]西安电子科技大学通信工程学院,西安710071

出　　处：《计算机应用研究》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)

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.

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 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]