Unified Ciphertext-Policy weighted attribute-based encryption for sharing data in cloud computing

Li, W; Ni, W; Liu, D; Liu, RP; Luo, S

Unified Ciphertext-Policy weighted attribute-based encryption for sharing data in cloud computing

Li, W Ni, W

Liu, D Liu, RP Luo, S

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Publication Type:: Journal Article
Citation:: Applied Sciences (Switzerland), 2018, 8 (12)
Issue Date:: 2018-12-06

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Field	Value	Language
dc.contributor.author	Li, W	en_US
dc.contributor.author	Ni, W https://orcid.org/0000-0002-4933-594X	en_US
dc.contributor.author	Liu, D	en_US
dc.contributor.author	Liu, RP	en_US
dc.contributor.author	Luo, S	en_US
dc.date.issued	2018-12-06	en_US
dc.identifier.citation	Applied Sciences (Switzerland), 2018, 8 (12)	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131983
dc.description.abstract	© 2018 by the authors. With the rapid development of cloud computing, it is playing an increasingly important role in data sharing. Meanwhile, attribute-based encryption (ABE) has been an effective way to share data securely in cloud computing. In real circumstances, there is often a mutual access sub-policy in different providers' access policies, and the significance of each attribute is usual diverse. In this paper, a secure and efficient data-sharing scheme in cloud computing, which is called unified ciphertext-policy weighted attribute-based encryption (UCP-WABE), is proposed. The weighted attribute authority assigns weights to attributes depending on their importance. The mutual information extractor extracts the mutual access sub-policy and generates the mutual information. Thus, UCP-WABE lowers the total encryption time cost of multiple providers. We prove that UCP-WABE is selectively secure on the basis of the security of ciphertext-policy weighted attribute-based encryption (CP-WABE). Additionally, the results of the implementation shows that UCP-WABE is efficient in terms of time.	en_US
dc.relation.ispartof	Applied Sciences (Switzerland)	en_US
dc.relation.isbasedon	10.3390/app8122519	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Unified Ciphertext-Policy weighted attribute-based encryption for sharing data in cloud computing	en_US
dc.type	Journal Article
utslib.citation.volume	12	en_US
utslib.citation.volume	8	en_US
utslib.for	0805 Distributed Computing	en_US
utslib.for	0806 Information Systems	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	open_access	*
pubs.issue	12	en_US
pubs.publication-status	Published	en_US
pubs.volume	8	en_US

Abstract:

© 2018 by the authors. With the rapid development of cloud computing, it is playing an increasingly important role in data sharing. Meanwhile, attribute-based encryption (ABE) has been an effective way to share data securely in cloud computing. In real circumstances, there is often a mutual access sub-policy in different providers' access policies, and the significance of each attribute is usual diverse. In this paper, a secure and efficient data-sharing scheme in cloud computing, which is called unified ciphertext-policy weighted attribute-based encryption (UCP-WABE), is proposed. The weighted attribute authority assigns weights to attributes depending on their importance. The mutual information extractor extracts the mutual access sub-policy and generates the mutual information. Thus, UCP-WABE lowers the total encryption time cost of multiple providers. We prove that UCP-WABE is selectively secure on the basis of the security of ciphertext-policy weighted attribute-based encryption (CP-WABE). Additionally, the results of the implementation shows that UCP-WABE is efficient in terms of time.

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http://hdl.handle.net/10453/131983