基于椭圆曲线密码体制的代理多重盲签名

A Scheme of Proxy Multiple Blind Signature Based on Elliptic Curve Cryptosystem

目前安全的椭圆曲线密码体制中,其安全性是基于椭圆曲线离散对数的难解性,安全指数是全指数的,本文根据椭圆曲线密码体制的安全性,并结合代理签名和多重盲签名的特性,设计了一种基于椭圆曲线密码体制的代理多重盲签名方案。该方案步骤简单、安全性高,能达到代理委托签名的任务和多重签名的要求,并且该签名方案具有盲签名的特性,能在未知对方身份的情况下进行身份验证,并经过严密的证明得出该签名方案是实用、安全和有效的。

At present, the security of Elliptic Curve Cryptography is based on the elliptic curve discrete logarithm diffi- culty, and its safety index is full index. According to the safety, we design an Elliptic Curve Cryptosystem proxy multiple blind signature that combes with the proxy signature and the multi-blind-signature features. This signature scheme has simple steps, high-level security,and achieves the task of agency and the requirements of multi-signature. And this signature scheme has blind signature characteristics, can verify the identity in the case of unknown authentication, and a rigorous proof proves this signature scheme is practical, safe and effective.