title: A secure and efficient audit mechanism for dynamic shared data in cloud storage.
abstract: With popularization of cloud services, multiple users easily share and update their data through cloud storage. For data integrity and consistency in the cloud storage, the audit mechanisms were proposed. However, existing approaches have some security vulnerabilities and require a lot of computational overheads. This paper proposes a secure and efficient audit mechanism for dynamic shared data in cloud storage. The proposed scheme prevents a malicious cloud service provider from deceiving an auditor. Moreover, it devises a new index table management method and reduces the auditing cost by employing less complex operations. We prove the resistance against some attacks and show less computation cost and shorter time for auditing when compared with conventional approaches. The results present that the proposed scheme is secure and efficient for cloud storage services managing dynamic shared data.
authors: Department of Computer Science, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea.
authors: Ohmin
authors: 0000-0001-8500-0074
authors: O
authors: Kwon
authors: Department of Computer Science, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea.
authors: Dongyoung
authors: 0000-0003-3283-5494
authors: D
authors: Koo
authors: Department of Computer Science, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea.
authors: Yongjoo
authors: 0000-0003-0178-1526
authors: Y
authors: Shin
authors: Department of Computer Science, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea.
authors: Hyunsoo
authors: 0000-0002-4995-3158
authors: H
authors: Yoon
mesh_terms: D016494:Computer Security; D016247:Information Storage and Retrieval; D020407:Internet