新的无证书代理盲签名方案

无证书公钥密码学既不存在传统的公钥密码系统的证书管理耗费，也不存在基于身份的密码系统中的密钥托管问题，安全且高效。研究了代理盲签名方案的构造和应用，发现现有的无证书代理盲签名方案较少，而在无证书密码系统中研究代理盲签名会更容易满足其在电子投票、电子银行等应用领域中对安全性和高效性的要求。 基于双线性对知识和离散对数困难问题，提出了一种无证书代理盲签名方案，该方案满足盲性、不可伪造性、可鉴别性、不可否认性等性质。

New certificateless proxy blind signature scheme

Certificateless public key cryptography is not only secure but also efficient because it does not suffer the cost of the certificate management in traditional public key cryptography and the key escrow problem inherited in ID-based public key cryptography. The study of proxy blind signatures consturction and applicatioan shows that present certificateless proxy blind signature schemes are very few and proxy blind signature schemes in certificateless public key systems can fulfill the safety and high efficiency required in electronic voting and e-banking and other fields better. Based on the bilinear pairing and discrete logarithm problem, a new certificateless proxy blind signature scheme which fulfils the properties of blindness, non-forgeability, identifiability, nonrepudiation and so on was given.