Identity-based broadcast encryption scheme using the new techniques for dual system encryption

被引：0
|
作者：
Sun J. [1 ,2 ]
Hu Y.-P. [1 ]
机构：
[1] Key Lab of Computer Network and Information Security, Xidian University
[2] Department of Application Mathematics, Xi'an University of Technology
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2011年 / 33卷 / 05期
关键词：
Broadcast encryption; Dual system encryption; Identity based cryptography; Provably secure; Standard model;
D O I：
10.3724/SP.J.1146.2010.01017
中图分类号：
学科分类号：
摘要：
According to the broadcast encryption scheme with wide applications in the real world but its security and efficiency can not be taken into consideration in the model simultaneously, a novel identity-based broadcast encryption scheme is proposed by combining with Waters dual system encryption and the orthogonality property of composite-order bilinear groups. Based on the standard model without tags, the scheme can achieve constant-size key and ciphertext. The scheme is proved by using the three static assumptions which do not depend on the number of queries the attacker makes. Furthermore, the analysis results indicated that the scheme of this paper is fully secure and can satisfy the higher efficiency and practice requirement.
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收藏
页码：1266 / 1270
页数：4
相关论文
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