Paper Info
Title
Efficient Attribute-Based Data Sharing Scheme with Hidden Access Structures
Abstract
Online data sharing has become a research hotspot while cloud computing is getting more and more popular. As a promising encryption technique to guarantee the security shared data and to realize flexible fine-grained access control, ciphertext-policy attribute-based encryption (CP-ABE) has drawn wide attentions. However, there is a drawback preventing CP-ABE from being applied to cloud applications. In CP-ABE, the access structure is included in the ciphertext, and it may disclose user's privacy. In this paper, we find a more efficient method to connect ABE with inner product encryption and adopt several techniques to ensure the expressiveness of access structure, the efficiency and security of our scheme. We are the first to present a secure, efficient fine-grained access control scheme with hidden access structure, the access structure can be expressed as AND-gates on multi-valued attributes with wildcard. We conceal the entire attribute instead of only its values in the access structure. Besides, our scheme has obvious advantages in efficiency compared with related schemes. Our scheme can make data sharing secure and efficient, which can be verified from the analysis of security and performance.
Year
DOI
Venue
2019
10.1093/comjnl/bxz052
COMPUTER JOURNAL
Keywords
Field
DocType
access control,attribute-based encryption,hidden access structure,inner product encryption
Computer science,Data sharing,Theoretical computer science,Distributed computing
Journal
Volume
Issue
ISSN
62
12
0010-4620
Citations 
PageRank 
References 
0
0.34
0
Authors
7
Name
Order
Citations
PageRank
Yang Chen132.09
Wenmin Li217615.93
Fei Gao324633.20
Wei Yin443.47
Kaitai Liang561245.13
Hua Zhang66223.96
Qiao-Yan Wen7218.35