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Efficient and Expressive Anonymous Attribute-Based Encryption for Mobile Cloud Computing

  • Yinghui ZhangEmail author
  • Dong Zheng
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 2)

Abstract

As a kind of attribute-based encryption, ciphertext-policy attribute-based encryption (CP-ABE) is a potential technique for realizing fine-grained access control on shared data. However, traditional CP-ABE is not suitable for mobile cloud computing, where mobile users are resource-limited and privacy is fragile. In this paper, we propose an anonymous CP-ABE scheme supporting offline key generation and offline encryption. In the proposed scheme, sensitive attribute values specified in an access structure are not explicitly sent along with a ciphertext. The online/offline encryption mechanism alleviates the computational burden of mobile users by performing most of encryption tasks without draining the battery. In addition, the online/offline key generation mechanism allows the attribute authority to finish most of operations in the key generation process in advance, which enables efficient mobile user registration. Finally, the proposed scheme is proven fully secure in the standard model and the performance analysis shows its effectiveness in mobile cloud computing.

Keywords

Access Structure Mobile Cloud Mobile Cloud Computing Online Phase Attribute Authority 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.National Engineering Laboratory for Wireless SecurityXi’an University of Posts and TelecommunicationsXi’anP.R. China
  2. 2.State Key Laboratory of CryptologyBeijingP.R. China
  3. 3.Westone Cryptologic Research CenterBeijingP.R. China

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