An efficient access control scheme based on CP-ABE with supporting attribute change in cloud storage systems - 文章详情页

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EI Scopus

摘要：

The　CP-ABE-based　access　control　scheme,　which　can　better　realise　the　access　control　of　many-to-multi-ciphertext　shared　in　the　cloud　storage　architecture,　is　still　facing　the　problems　that　the　system　cost　is　too　large,　and　the　policy　attribute　revocation　or　restore　is　not　flexible.　This　paper　proposes　an　efficient　access　control　scheme　based　on　CP-ABE　with　supporting　attribute　change　in　cloud　storage　system.　The　fine-grained　access　control　can　be　achieved　by　re-encryption　mechanism　which　takes　the　minimum　shared　re-encryption　key　for　policy　attribute　set.　And　then　the　access　structure　tree　is　expanded　by　creating　a　corresponding　virtual　attribute　for　each　leaf　node　attribute.　The　analysis　results　of　the　scheme　indicate　that　the　efficient　and　flexibility　of　the　attribute　change　is　not　only　improved,　but　also　the　system　cost　is　reduced.　Copyright　©　2019　Inderscience　Enterprises　Ltd.

关键词：

Access control Cost benefit analysis Cryptography

作者机构：

[ 1 ] [Ye, Tao]Faculty of Information Technology, Beijing University of Technology, Beijing, China
[ 2 ] [Ye, Tao]College of Computer, Qinghai Nationalities University, Xining, China
[ 3 ] [Cai, Yongquan]Faculty of Information Technology, Beijing University of Technology, Beijing Key Laboratory of Trusted Computing, Natl. Engineering Laboratory for Critical Technologies of Information Security Classified Protection, Beijing; 100124, China
[ 4 ] [Zhao, Xu]College of Applied Sciences, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Yang, Yongli]Faculty of Information Technology, Beijing University of Technology, Beijing Key Laboratory of Trusted Computing, Natl. Engineering Laboratory for Critical Technologies of Information Security Classified Protection, Beijing; 100124, China
[ 6 ] [Wang, Wei]Faculty of Information Technology, Beijing University of Technology, Beijing Key Laboratory of Trusted Computing, Natl. Engineering Laboratory for Critical Technologies of Information Security Classified Protection, Beijing; 100124, China
[ 7 ] [Zhu, Yi]Faculty of Information Technology, Beijing University of Technology, Beijing Key Laboratory of Trusted Computing, Natl. Engineering Laboratory for Critical Technologies of Information Security Classified Protection, Beijing; 100124, China

通讯作者信息：

[zhao, xu]college of applied sciences, beijing university of technology, beijing; 100124, china

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