有效的无证书签名和盲签名方案

摘要

研究无证书公钥密码系统下的盲签名问题.利用双线性映射设计了一个有效的无证书盲签名方案,它基于所给的无证书签名方案.在随机预言模型下,给出该无证书签名方案的安全证明,其安全性基于计算Diffie-Hellman问题的困难性.鉴于无证书盲签名方案的安全、高效和无证书管理的优点,该方案可广泛应用于电子投票、电子货币等场合.%This paper studied blind signatures in the certificateless public key setting, and put forward an efficient construction of certificateless blind signature scheme using bilinear maps. It was based on a certificateless signature scheme. Then proved the certificateless signature scheme secure in the random oracle models with the assumption that the computational Diffie-Hellman problem was infeasible. Due to its security, high efficiency and free of certificate management, the certificateless blind signature scheme have practical applications in electronic voting and electronic cash, etc.