Show simple item record

dc.contributor.authorWang, Xu An
dc.contributor.authorXhafa Xhafa, Fatos
dc.contributor.authorMa, Jianfeng
dc.contributor.authorGe, Yunlong
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciències de la Computació
dc.date.accessioned2017-12-13T14:41:19Z
dc.date.available2018-07-03T00:30:49Z
dc.date.issued2018-01
dc.identifier.citationWang, X., Xhafa, F., Ma, J., Ge, Y. PRE+: dual of proxy re-encryption for secure cloud data sharing service. "International journal of web and grid services", Gener 2018, vol. 14, núm. 1, p. 44-69.
dc.identifier.issn1741-1106
dc.identifier.urihttp://hdl.handle.net/2117/111912
dc.description.abstractWith the rapid development of very large, diverse, complex, and distributed datasets generated from internet transactions, emails, videos, business information systems, manufacturing industry, sensors and internet of things etc., cloud and big data computation have emerged as a cornerstone of modern applications. Indeed, on the one hand, cloud and big data applications are becoming a main driver for economic growth. On the other hand, cloud and big data techniques may threaten people and enterprises’ privacy and security due to ever increasing exposure of their data to massive access. In this paper, aiming at providing secure cloud data sharing services in cloud storage, we propose a scalable and controllable cloud data sharing framework for cloud users (called: Scanf). To this end, we introduce a new cryptographic primitive, namely, PRE+, which can be seen as the dual of traditional proxy re-encryption (PRE) primitive. All the traditional PRE schemes until now require the delegator (or the delegator and the delegatee cooperatively) to generate the re-encryption keys. We observe that this is not the only way to generate the re-encryption keys, the encrypter also has the ability to generate re-encryption keys. Based on this observation, we construct a new PRE+ scheme, which is almost the same as the traditional PRE scheme except the re-encryption keys generated by the encrypter. Compared with PRE, our PRE+ scheme can easily achieve the non-transferable property and message-level based fine-grained delegation. Thus our Scanf framework based on PRE+ can also achieve these two properties, which is very important for users of cloud storage sharing service. We also roughly evaluate our PRE+ scheme’s performance and the results show that our scheme is efficient and practica for cloud data storage applications.
dc.format.extent26 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Informàtica::Seguretat informàtica
dc.subject.lcshData encryption (Computer science)
dc.subject.lcshCloud computing
dc.subject.otherSecure cloud data sharing service
dc.subject.otherDual of proxy re-encryption
dc.subject.otherNon-transferable property
dc.subject.otherMessage-level based fine-grained delegation
dc.titlePRE+: dual of proxy re-encryption for secure cloud data sharing service
dc.typeArticle
dc.subject.lemacXifratge (Informàtica)
dc.subject.lemacComputació en núvol
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversion10.1504/IJWGS.2018.088394
dc.rights.accessOpen Access
drac.iddocument21666046
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorWang, X., Xhafa, F., Ma, J., Ge, Y.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameInternational journal of web and grid services
upcommons.citation.volume14
upcommons.citation.number1
upcommons.citation.startingPage44
upcommons.citation.endingPage69


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder