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Security and efficiency data sharing scheme for cloud storageAuthor-Name: Han, Ke

Author

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  • Li, Qingbo
  • Deng, Zhongliang

Abstract

With the adoption and diffusion of data sharing paradigm in cloud storage, there have been increasing demands and concerns for shared data security. Ciphertext Policy Attribute-Based Encryption (CP-ABE) is becoming a promising cryptographic solution to the security problem of shared data in cloud storage. However due to key escrow, backward security and inefficiency problems, existing CP-ABE schemes cannot be directly applied to cloud storage system. In this paper, an effective and secure access control scheme for shared data is proposed to solve those problems. The proposed scheme refines the security of existing CP-ABE based schemes. Specifically, key escrow and conclusion problem are addressed by dividing key generation center into several distributed semi-trusted parts. Moreover, secrecy revocation algorithm is proposed to address not only back secrecy but efficient problem in existing CP-ABE based scheme. Furthermore, security and performance analyses indicate that the proposed scheme is both secure and efficient for cloud storage.

Suggested Citation

  • Li, Qingbo & Deng, Zhongliang, 2016. "Security and efficiency data sharing scheme for cloud storageAuthor-Name: Han, Ke," Chaos, Solitons & Fractals, Elsevier, vol. 86(C), pages 107-116.
    • Handle: RePEc:eee:chsofr:v:86:y:2016:i:c:p:107-116
    DOI: 10.1016/j.chaos.2016.02.010
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