摘要
该文提出了一种前向安全的代理签名方案,该方案基于零知识证明协议,在离散对数和二次剩余问题困难性的假设和随机oracle模型下系统是安全的.并且该系统使得原始签名者和代理签名者的秘密钥都具有前向安全性.该方案弥补了代理签名体制在密钥安全性上的不足,秘密钥的前向安全性有效控制了密钥安全风险.
A new forward-secure proxy signature scheme is proposed . The scheme is proven to be forward secure based on the assumption of the logarithm, quadric remain problems in the random oracle model, Further more, security analysis of the proposed scheme is presented, the scheme made the secret key of the original signer and the proxy signer have forward secure, it make up the lack of the proxy signature scheme in the safety of the secret key, Forward security of the secret key be good for controlling the safety risk.
出处
《江西师范大学学报（自然科学版）》
CAS
北大核心
2006年第2期120-122,126,共4页
Journal of Jiangxi Normal University(Natural Science Edition)
基金
国家自然科学基金资助项目(60473019)
关键词
代理签名
前向安全
零知识证明
proxy signature
forward-secure
zero-knowledge proof
