Distributed Access Privilege Management for Secure Cloud Business


The KIPS Transactions:PartC, Vol. 18, No. 6, pp. 369-378, Dec. 2011
10.3745/KIPSTC.2011.18.6.369,   PDF Download:

Abstract

To ensure data confidentiality and fine-grained access control in business environment, system model using KP-ABE(Key Policy-Attribute Based Encryption) and PRE(Proxy Re-Encryption) has been proposed recently. However, in previous study, data confidentiality has been effected by decryption right concentrated on cloud server. Also, Yu`s work does not consider a access privilege management, so existing work become dangerous to collusion attack between malicious user and cloud server. To resolve this problem, we propose secure system model against collusion attack through dividing data file into header which is sent to privilege manager group and body which is sent to cloud server. And we construct the model of access privilege management using AONT based XOR threshold Secret Sharing, In addition, our scheme enable to grant weight for access privilege using XOR Share. In chapter 4, we differentiate existing scheme and proposed scheme.


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Cite this article
[IEEE Style]
Y. J. Song and J. M. Do, "Distributed Access Privilege Management for Secure Cloud Business," The KIPS Transactions:PartC, vol. 18, no. 6, pp. 369-378, 2011. DOI: 10.3745/KIPSTC.2011.18.6.369.

[ACM Style]
You Jin Song and Jeong Min Do. 2011. Distributed Access Privilege Management for Secure Cloud Business. The KIPS Transactions:PartC, 18, 6, (2011), 369-378. DOI: 10.3745/KIPSTC.2011.18.6.369.