哈尔滨工程大学学报2011，Vol.32Issue(5)：637-642,6.DOI:10.3969/j.issn.1006-7043.2011.05.017
一种新的无证书广播签密方案
A new certificateless broadcast signcryption
摘要
Abstract
Considering the characteristics of signcryption schemes with high efficiency and low computational and transmissional cost, along with the advantages of certificateless public key cryptography, a formal security model for certificateless broadcast signcryption secure against malicious-but-passive key generation center(KGC) attacks was introduced. Also, a new certificateless broadcast signcryption scheme was proposed to control the limitations of oneto-one transmission. This scheme was proven not only to be IDN-CCA2 secure under the decisional bilinear DiffieHellman(DBDH) intractability assumption without using the random oracles, but also to be existentially unforgeable under the computational Diffie-Hellman (CDH) intractability assumption. Furthermore, performance analysis shows that the proposed scheme is efficient and practical.关键词
广播签密/标准模型/可证明安全/无证书公钥系统/恶意但被动KGC攻击Key words
broadcast signcryption/ standard model/ provably secure/ certificateless public key cryptography/ malicious-but- passive key generation center attacks分类
信息技术与安全科学引用本文复制引用
孙瑾,胡予濮..一种新的无证书广播签密方案[J].哈尔滨工程大学学报,2011,32(5):637-642,6.基金项目
国家973基金资助项目(2007CB311201) （2007CB311201）
国家自然科学基金资助项目(60970119). （60970119）
