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Dynamic Audit Services for Outsourced Storages in Clouds
April-June 2013 (vol. 6 no. 2)
pp. 227-238
Yan Zhu, Sch. of Comput. & Commun. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China
Gail-Joon Ahn, Sch. of Comput., Inf., & Decision Syst. Eng., Arizona State Univ., Tempe, AZ, USA
Hongxin Hu, Dept. of Comput. & Inf. Sci., Delaware State Univ., Dover, DE, USA
S. S. Yau, Sch. of Comput., Inf., & Decision Syst. Eng., Arizona State Univ., Tempe, AZ, USA
Chang-Jun Hu, Sch. of Comput. & Commun. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China
In this paper, we propose a dynamic audit service for verifying the integrity of an untrusted and outsourced storage. Our audit service is constructed based on the techniques, fragment structure, random sampling, and index-hash table, supporting provable updates to outsourced data and timely anomaly detection. In addition, we propose a method based on probabilistic query and periodic verification for improving the performance of audit services. Our experimental results not only validate the effectiveness of our approaches, but also show our audit system verifies the integrity with lower computation overhead and requiring less extra storage for audit metadata.
Index Terms:
Protocols,Cloud computing,Computer architecture,Cryptography,Availability,Probabilistic logic,cloud storage,Storage security,provable data possession,audit service
Citation:
Yan Zhu, Gail-Joon Ahn, Hongxin Hu, S. S. Yau, H. G. An, Chang-Jun Hu, "Dynamic Audit Services for Outsourced Storages in Clouds," IEEE Transactions on Services Computing, vol. 6, no. 2, pp. 227-238, April-June 2013, doi:10.1109/TSC.2011.51
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