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Title:
An expressive decentralizing KP-ABE scheme with constant-size ciphertext
Author: Li, Qinyi (1) ; Xiong, Hu (1) ; Zhang, Fengli (1) ; Zeng, Shengke (1)
Corresponding Author: Li, Q.(leebluedreams@gmail.com)
Source: International Journal of Network Security
Issued Date: 2013
Volume: 15, Issue:3, Pages:131-140
Indexed Type: EI
Department: (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
Abstract: 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.
English Abstract: 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.
Language: 英语
Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/17043
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
Li, Qinyi ,Xiong, Hu ,Zhang, Fengli ,et al. An expressive decentralizing KP-ABE scheme with constant-size ciphertext[J]. International Journal of Network Security,2013-01-01,15(3):131-140.
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