通信学报2017，Vol.38Issue(4)：35-45,11.DOI:10.11959/j.issn.1000-436x.2017072
标准模型下可证明安全的无证书广义签密
Certificateless generalized signcryption scheme in the standard model
摘要
Abstract
In 2010,Liu,et al.proposed a certificateless signcryption scheme in the standard model,but many analyses revealed that Liu's scheme was insecure in fact.To overcome the disadvantages,the scheme was improved and a certificateless generalized signcryption scheme was constructed.In addition,a formal security model for the proposed scheme against the malicious-but-passive KGC attacks was introduced.Furthermore,the proposed scheme was proven to be secure under the decisional bilinear Diffie-Hellman and the computational Diffie-Hellman intractability assumptions in the standard model.Numerical results illustrate that the proposed algorithm is efficient.关键词
无证书密码体制/广义签密/标准模型/有预谋的KGC被动攻击Key words
certificateless cryptography/generalized signcryption/standard model/malicious-but-passive KGC attacks分类
信息技术与安全科学引用本文复制引用
牛淑芬,牛灵,王彩芬,李亚红..标准模型下可证明安全的无证书广义签密[J].通信学报,2017,38(4):35-45,11.基金项目
国家自然科学基金资助项目(No.61562077,No.61462077,No.61662071)The National Natural Science Foundation of China (No.61562077,No.61462077,No.61662071) （No.61562077,No.61462077,No.61662071）
