摘要
有机集成广义指定验证者签名和自认证签密的思想,提出了一个基于DLP的自认证广义指定验证者签密方案,方案的困难性基于有限域上的离散对数问题.所提方案不仅能够保护签密持有者的隐私,而且消除了证书存在问题和密钥托管问题.由于新方案具有通信代价低、计算量少和安全性强等优点,在电子商务和电子政务活动中将具有重要应用.
By integrating the thoughts of universal designated verifier signature and self-certified signcryption, a new selfcertified universal designated-verifier signcryption scheme based on discrete logarithm problem in finite field is proposed. The new scheme can protect the privacy of the signcryption holder, moreover it eliminates certificate existence problem and key escrow problem. The proposed has the merits of low communication overheads, little computation cost and good security, so it is propitious to applications in E-eommerce and E-government.
出处
《微电子学与计算机》
CSCD
北大核心
2010年第9期49-51,共3页
Microelectronics & Computer
基金
国家自然科学基金项目(60863006)
青海省教育厅软课题项目(2008-Z-620)
青海省重点课程<现代操作系统>建设项目
关键词
自认证签密
广义指定验证者签名
有限域上离散对数问题
强安全性
self-certified signcryption
universal designated verifier signature
discrete logarithm problem in finite field
good security
