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FITEE
Frontiers of Information Technology & Electronic Engineering  2013, Vol. 14 Issue (2): 85-97    DOI: 10.1631/jzus.C1200240
    
Yong Cheng, Zhi-ying Wang, Jun Ma, Jiang-jiang Wu, Song-zhu Mei, Jiang-chun Ren
Efficient revocation in ciphertext-policy attribute-based encryption based cryptographic cloud storage
Yong Cheng, Zhi-ying Wang, Jun Ma, Jiang-jiang Wu, Song-zhu Mei, Jiang-chun Ren
School of Computer, National University of Defense Technology, Changsha 410073, China
 全文: PDF 
Abstract: It is secure for customers to store and share their sensitive data in the cryptographic cloud storage. However, the revocation operation is a sure performance killer in the cryptographic access control system. To optimize the revocation procedure, we present a new efficient revocation scheme which is efficient, secure, and unassisted. In this scheme, the original data are first divided into a number of slices, and then published to the cloud storage. When a revocation occurs, the data owner needs only to retrieve one slice, and re-encrypt and re-publish it. Thus, the revocation process is accelerated by affecting only one slice instead of the whole data. We have applied the efficient revocation scheme to the ciphertext-policy attribute-based encryption (CP-ABE) based cryptographic cloud storage. The security analysis shows that our scheme is computationally secure. The theoretically evaluated and experimentally measured performance results show that the efficient revocation scheme can reduce the data owner’s workload if the revocation occurs frequently.
Key words: Revocation optimization    Cryptographic access control    Cloud storage
收稿日期: 2012-08-12 出版日期: 2013-01-31
CLC:  TP309.2  
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Yong Cheng
Jun Ma
Zhi-ying Wang
Jiang-jiang Wu
Song-zhu Mei
Jiang-chun Ren

引用本文:

Yong Cheng, Zhi-ying Wang, Jun Ma, Jiang-jiang Wu, Song-zhu Mei, Jiang-chun Ren. Efficient revocation in ciphertext-policy attribute-based encryption based cryptographic cloud storage. Front. Inform. Technol. Electron. Eng., 2013, 14(2): 85-97.

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