Identity privacy-preserving public auditing with dynamic group for secure mobile cloud storage

Authors

Yong Yu, University of WollongongFollow
Yi Mu, University of WollongongFollow
Jianbing Ni, University of Electronic Science and Technology of China
Jiang Deng, University of Electronic Science and Technology of China
Ke Huang, University of Electronic Science and Technology of China

RIS ID

95634

Publication Details

Yu, Y., Mu, Y., Ni, J., Deng, J. & Huang, K. (2014). Identity privacy-preserving public auditing with dynamic group for secure mobile cloud storage. Lecture Notes in Computer Science, 8792 28-40.

Abstract

With mobile cloud storage, mobile users can enjoy the advantages of both mobile networks and cloud storage. However, a major concern of mobile users is how to guarantee the integrity of the remote data. Taking into account the mobility of mobile devices, in this paper, we propose an identity privacy-preserving public auditing protocol in mobile cloud storage for dynamic groups. In our proposal, a dynamic group key agreement is employed for key sharing among mobile users group and the idea of proxy re-signatures is borrowed to update tags efficiently when users in the group vary. In addition, the third party auditor (TPA) is able to verify the correctness of cloud data without the knowledge of mobile users' identities during the data auditing process. We also analyze the security of the proposed protocol.