中文摘要：

分析了张键红等提出的基于RSA的广播多重数字签名方案，发现该方案无法抵御假冒攻击，无法辨别不诚实的签名者；提出一个新的基于身份和RSA的广播多重盲签名方案，通过双向认证的方法，解决了原方案存在的安全漏洞，提高了安全性.

英文摘要：

The paper analyzed Zhang Jianhong＇s broadcasting digital multi-signature scheme based on RSA, which couldn＇t withstand masquerading attacks or identify dishonest signatures, then presented a new broadcasting multi-blind signature scheme based on ID and RSA, solved security vulnerabilities in the original scheme and improved security by mutual authentication.