摘要
在强安全模型下,结合基于证书签名体制和盲签名体制,提出了一类高效的基于证书盲签名方案,能抵抗适应性选择消息攻击和身份攻击下的存在性伪造,并且在随机预言模型下基于q强Diffie-Hellman难题(q-SDHP)和扩展的逆计算Diffie-Hellman难题(E-inv-CDHP)给出完整的安全性证明。结果表明,新方案具有较高的安全性,不仅简化了密钥管理过程,克服了密钥托管问题,而且整体性能比较高。
Combining certificate-based signature and blind signature,this paper firstly proposed an efficient certificate-based blind signature scheme under a strong security model.The scheme was existentially unforgeable against adaptively chosen-message attack and chosen-identity attack.The complete security proof has been given under random oracle model.Its security was based on the q-strong Diffie-Hellman problem（q-SDHP） and the expand inversed Diffie-Hellman problem（E-inv-CDHP）.The results show that the new scheme has a high degree of security.It not only simplifies the certificate management process,but also overcomes the private key escrow problem.Furthermore,its overall performance is relatively high.
出处
《计算机应用研究》
CSCD
北大核心
2012年第12期4622-4625,4630,共5页
Application Research of Computers
基金
国家自然科学基金资助项目(61170246)
福建省教育厅科技项目(JA10209)
