An expressive decentralizing KP-ABE scheme with constant-size ciphertext

ISCAS OpenIR

	An expressive decentralizing KP-ABE scheme with constant-size ciphertext
	Li, Qinyi (1); Xiong, Hu (1); Zhang, Fengli (1); Zeng, Shengke (1); Li, Q.(leebluedreams@gmail.com)
	2013
发表期刊	International Journal of Network Security
ISSN	1816353X
卷号	15 期号:3 页码:131-140
摘要	Decentralizing attribute based encryption is a variant of multi-authority attribute based encryption which doesn't require a trusted central authority to conduct the system setup. In this paper, we propose an expressive decentralizing KP-ABE scheme with constant ciphertext size. In our construction, the access policy can be expressed as any non-monotone access structure. Meanwhile, the ciphertext size is independent on the number of attributes used in the scheme. We prove that our scheme is semantic secure in so-called Selective-Set model based on the n-DBDHE assumption. To the best of our knowledge, this is the first multi-authority attribute based encryption scheme realizing such expressive access policy and constant ciphertext size.; Decentralizing attribute based encryption is a variant of multi-authority attribute based encryption which doesn't require a trusted central authority to conduct the system setup. In this paper, we propose an expressive decentralizing KP-ABE scheme with constant ciphertext size. In our construction, the access policy can be expressed as any non-monotone access structure. Meanwhile, the ciphertext size is independent on the number of attributes used in the scheme. We prove that our scheme is semantic secure in so-called Selective-Set model based on the n-DBDHE assumption. To the best of our knowledge, this is the first multi-authority attribute based encryption scheme realizing such expressive access policy and constant ciphertext size.
收录类别	EI
部门归属	(1) School of Computer Science and Engineering, University of Electronic Science and Technology of China, No.2006, Xiyuan Avenue, West Hi-tech Zone, Chengdu, 611731, China; (2) State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing, 100080, China
语种	英语
内容类型	期刊论文
URI标识	http://ir.iscas.ac.cn/handle/311060/17043
专题	中国科学院软件研究所
通讯作者	Li, Q.(leebluedreams@gmail.com)
推荐引用方式 GB/T 7714	Li, Qinyi ,Xiong, Hu ,Zhang, Fengli ,et al. An expressive decentralizing KP-ABE scheme with constant-size ciphertext[J]. International Journal of Network Security,2013,15(3):131-140.
APA	Li, Qinyi ,Xiong, Hu ,Zhang, Fengli ,Zeng, Shengke ,&Li, Q..(2013).An expressive decentralizing KP-ABE scheme with constant-size ciphertext.International Journal of Network Security,15(3),131-140.
MLA	Li, Qinyi ,et al."An expressive decentralizing KP-ABE scheme with constant-size ciphertext".International Journal of Network Security 15.3(2013):131-140.