前向安全的混合代理多重签名方案  

Forward secure hybrid proxy multi-signature scheme

作　　者：万世昌[1] 程丽红[1] 张珍[1] 

机构地区：[1]陕西师范大学计算机科学学院,西安710062

出　　处：《计算机工程与应用》2011年第12期80-83,共4页Computer Engineering and Applications

基　　金：国家自然科学基金No.60673065~~

摘　　要：在代理多重签名方案中,一部分原始签名人将签名权授予指定的代理签名人,而另一部分原始签名人自己行使签名权,这种情况称为混合代理多重签名。目前有很多混合代理多重签名方案相继被提出,但是这些方案都不满足前向安全性,一旦签名密钥泄露,以前所有的签名都可能失效或被假冒,从而导致签名者无法估量的损失。在这个问题的基础上提出了一种前向安全的混合代理多重签名方案,并且对安全性和效率做了详细分析。In a proxy multi-signature scheme,only a part of original signers delegate their signing power to the proxy signer,and others sign by themselves,this situation is called hybrid proxy multi-signature.At present,many hybrid proxy multi-signature scheme are proposed,but all these schemes don＇t satisfy the properties of forward secure.Once the secret keys of proxy signers are lost, all the former signatures will be invalid or be forged and that can even lead the signer＇s incalculable loss. Based on this problems a forward secure hybrid proxy multi-signature scheme is proposed, the security and efficiency of the proposed scheme are analyzed in details.

关 键 词：代理多重签名 混合代理多重签名 前向安全 双线性配对 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]