基于身份的签名和可验证加密签名方案  

ID-based signature and verifiably encrypted signature schemes

作　　者：齐亚平[1] 都丽华[2] 

机构地区：[1]西安航空技术高等专科学校计算机系,西安710077 [2]中国石油吉林油田公司开发部,吉林松原138000

出　　处：《计算机应用研究》2008年第5期1527-1529,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(60372046,60573043)

摘　　要：基于双线性对,提出了一个基于身份的签名方案,在计算性D iffie-Hellman问题困难的假设下,证明了该方案在随机预言机模型下抗适应性选择消息和身份攻击。基于提出的方案,构造了一个可证安全的可验证加密签名方案,其不可伪造性依赖于提出的基于身份的签名方案,不透明性依赖于基于身份的签名方案和BLS短签名。与已有方案相比,该方案的优势是基于身份,不需要证书,从而简化了密钥管理。The paper proposed an identity （ID）-based signature scheme from bilinear pairing. The proposed scheme was secure against existential forgery on adaptively chosen message and ID attack in random oracle model under the assumption that the computational Diffie-Hellman problem （CDHP） was hard. Based on the proposed scheme, a verifiably encrypted signature scheme was proposed. Its unforgeability relied on the proposed ID-based signature and its opacity depended on the proposed ID-based signature and BLS short signature. The advantage of the proposed schemes over the existing schemes was that they were ID-based, which need no certificates and had a simple key management.

关 键 词：基于身份 双线性对 可验证加密签名 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]