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Home > Archive>Volume 27, Issue 6, 2016 >1432-1450. DOI:10.13328/j.cnki.jos.005003
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Enforcing Access Controls on Encrypted Cloud Storage with Policy Hiding
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National Program on Key Basic Research Project of China (973) (014CB340603); National High-Tech R&D Program of China (863) (2013AA01A214); Strategy Pilot Project of Chinese Academy of Sciences (XDA06010702)

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    Abstract:

    Enforcing access controls on cloud storage by cryptography is an important topic of cloud security. Based on access control policies, selective encryption builds key derivation graphs to distribute symmetric keys among users. Selective encryption can ensure the confidentiality and fine-grained access control of cloud storage data, while simplifying data encryption procedure and reducing the total number of keys. However, the existing selective encryption solutions have to fully or at least partially disclose the access control policies. This policy information unfortunately, is usually related to the authorization relation between users and files, leading to privacy leakage. This work significantly improves the existing policy-hiding schemes (of selective encryption) with much less privacy leakage and much faster key derivation, while supporting fine-grained access control on encrypted cloud storage.

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雷蕾,蔡权伟,荆继武,林璟锵,王展,陈波.支持策略隐藏的加密云存储访问控制机制.软件学报,2016,27(6):1432-1450

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History
  • Received:August 15,2015
  • Revised:October 09,2015
  • Online: January 22,2016
Links:Institute of Software, CASChina Computer FederationCASNSFC
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