计算机应用研究Issue(11)：3426-3429,4.DOI:10.3969/j.issn.1001-3695.2015.11.053
对一个无证书签密方案的分析与改进
Security analysis and improvement of certificateless signcryption scheme
摘要
Abstract
To realize unforgeability of signcryption scheme under AⅠ’s attack,He Debiao proposed an improvement of a cer-tificateless signcryption scheme presented by Liu,et al.Security analysis indicated that He’s scheme could not resist AⅡ’s attack,and it was also not secure when revealed the one-off data used in signcryption.To solve the security problem existed in He’s scheme,this paper developed a novel certificateless signcryption scheme based on elliptic curve discrete logarithm prob-lem.Analysis shows that new scheme is more secure than He’s and no less efficient than schemes of same kind.关键词
无证书公钥密码/签密/计算 Diffie-Hellman 问题/椭圆曲线离散对数问题/随机预言机Key words
certificateless cryptography/signcryption/computational Diffie-Hellman problem/elliptic curve discrete loga-rithm problem/random oracle分类
信息技术与安全科学引用本文复制引用
秦艳琳,吴晓平..对一个无证书签密方案的分析与改进[J].计算机应用研究,2015,(11):3426-3429,4.基金项目
国家自然科学基金青年基金资助项目（61100042）；海军工程大学自然科学基金资助项目 （）
