新的无证书的代理签名方案

已有的代理签名方案，大多是基于证书的密码体制或者基于身份的密码体制提出的，都存在证书的管理问题或密钥的托管问题。基于无证书密码体制的优点，在无证书公钥密码体制的基础上提出了一种新的代理签名方案。分析表明, 该方案不需要证书的管理，也没有密钥的托管问题，满足代理签名所要求的所有性质,且在效率上优于已有的基于身份的代理签名方案。

A new certificateless proxy signature

The existing proxy signature schemes are based on certificate public key cryptography and identity-based cryptography,which have the problems of certificate management or key escrow.Based on the merit of certificateless public key cryptography,a new certificateless proxy signature was proposed.The result shows that the new proxy signature scheme solves all the problems of certificate management and key escrow,and also satisfies all the required characteristics of proxy signature.It is more efficient than th...