有效的无证书代理签名方案  

Efficient certificateless proxy signature scheme

作　　者：陈虎[1] 朱昌杰[1] 宋永生[2] 杨忆[1] 孙梅[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]南通纺织职业技术学院现代教育技术中心,江苏南通226007

出　　处：《计算机工程与应用》2012年第18期89-94,共6页Computer Engineering and Applications

基　　金：国家自然科学基金(No.60673070);安徽省自然科学基金(No.KJ2010A298;No.KJ2010B190;No.1208085MF108);安徽省高校自然科学基金(No.KJ2012B157)

摘　　要：利用双线性映射设计一个有效的无证书代理签名方案。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。分析显示新方案满足诸如可验证性、强不可否认性、强可识别性、防止签名滥用等安全性质。鉴于方案的安全、高效和无证书管理的优点,它可广泛应用于电子商务、移动代理系统等方面。This paper puts forward an efficient construction of certificateless proxy signature scheme using bilinear maps. The security of this scheme is based on the infeasibility of the computational Diffie-Hellman problem and is formally proven in the strongest security model of certificateless proxy signature schemes. The analysis shows that this new scheme satisfies the security requirements such as verifiability, strong undeniability, strong identifiability and prevention of misuse for a proxy signature scheme. Due to its security, high efficiency and free of certificate management, it may have practical applications in electronic commerce and mobile agent systems, etc.

关 键 词：无证书密码系统 双线性映射 计算DIFFIE-HELLMAN问题 代理签名 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]