机构地区: 山东大学网络信息安全研究所
出 处: 《计算机工程与设计》 2004年第5期665-667,共3页
摘 要: 代理签名是一种特殊的签名方案,在签名人由于某种原因不能行使签名权力时,有原始签名人委托一个人或团体代理其有效地进行签名。传统的代理签名方案都是基于离散对数问题的。一种基于椭圆曲线离散对数(ECDLP)问题的代理签名体制被提出来。该体制比基于传统离散对数(DLP)的代理签名体制密胡和签名长度更短,具有与之相当的安全性。 Proxy signature is a kind of special sinature scheme.It is invented to delegate signing capability efficiently and tran- sparently.In practice,this is important.Here,another scheme based on elliptic curve discrete logarithm problem(ECDLP)was proposed.New scheme has shorter key length and shorter signature length than the scheme based on Discrete Logarithm Problem and has the same security.