周等人提出的一种代理多重签名方案由于执行效率高、实现相对简单,因而有着广泛的应用.通过对该方案进行安全性分析,指出该方案容易受到内外两种伪造攻击,因此在安全性上有所欠缺,同时文中给出了相应的攻击方法.最后提出一种新的改进方案,通过加入公钥验证和签名参数处理机制,从而能够有效抵抗内外两种伪造攻击. Zhou, who proposed a proxy multi-signature scheme due to the implementation of high efficiency, relatively simple to achieve, which has a wide range of applications.Through the security analysis of the program, pointed out that the program vulnerable to both internal and external fake attacks, security At the same time, the corresponding attack methods are given.Finally, a new improved scheme is proposed, which can effectively resist two types of forgery attacks both inside and outside by adding public key authentication and signature parameter processing mechanism.