摘要
已有的代理盲签名方案并不具备前向安全性。为了有效地保护系统的安全,最大程度地减少因密钥泄漏带来的危害,保护原始签名人和代理签名人的利益,在二次剩余难题和离散对数难题的基础上,应用前向安全理论和代理盲签名技术,提出了两种新的前向安全代理盲签名方案,证明了它们的各种安全性。
The existing proxy blind signature can not provide the property of forward security.Based on quadric remain problem and discrete logarithm difficulty,two proxy blind schemes with forward secure property are proposed and all kinds of their security has been proved by applying the idea of forward security to proxy blind signature.These schemes can protect security of the system and the interest of both the original signer and the proxy signer and reduce the damage of revealing secret key.
出处
《计算机工程与应用》
CSCD
2012年第5期51-53,155,共4页
Computer Engineering and Applications
基金
成都市2007年科技攻关项目(No.07GGYB050GX-010)
关键词
代理签名
盲签名
前向安全
二次剩余难题
代理盲签名
proxy signature
blind signature
forward security
quadric remain problems
proxy blind signature
