Abstract: Aiming at the unlinkability problem of some existed ID-based proxy blind signatures, according to bilinear pairings and random property of extra parameter, a new efficient ID-based proxy blind signature is proposed. Security analysis in cryptography is carried out to analyze the scheme. The system security and efficiency are promoted. Simulation experimental results show this scheme not only mends the security leak but also retains the merits of the existed blind signature schemes. It has the application value.

Key words: proxy blind signature, unlinkability, ID-based, bilinear pairings

摘要： 针对一些基于身份的代理盲签名不具有不可追踪性的问题，根据双线性对附加参数的随机特性，提出一种改进的基于身份的代理盲签名方案，采用密码学安全性分析方法，提高系统的安全性和效率。仿真实验结果表明，该改进方案克服了现有方案的安全隐患，并且能够保留已有方案的其他优点，具有一定实用价值。

关键词: 代理盲签名, 不可追踪性, 基于身份, 双线性对

CLC Number: 

• TP309