【摘要】 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.更多还原

【Abstract】 Zhou’s proxy multi-signature scheme was relatively safer and more effective, which was used comprehensively,but this scheme was not safety enough.In this work, security analysis was given to the scheme and results showed that the scheme was very easy aggressed by the inside forgery attack and outside attack.Then,the paper gave the corresponding attacks to the scheme,finally the paper showed a new proxy multi-signature with checking of pubic key and testing the signature parameter which can resist the two kinds of forgery attacks.更多还原