Cloud Storage: A Review on Secure Deduplication and Issues

S. Annie Joice,
M. A. Maluk Mohamed,

Abstract


Data deduplication in cloud is gaining popularity among cloud users because it enables cloud users to reduce the storage costs and the network bandwidth costs. Many security and privacy issues exist in general deduplication techniques and various secure deduplication techniques have been proposed to keep the sensitive data secure. A diverse range of solutions has been proposed for secure deduplication, ownership challenge and deduplication in the cloud environment. In this article, deduplication systems are classified based on message dependent encryption, ownership and cloud architecture. Based on the classification, security risks and side channel attacks from inside and outside adversaries and potential problems in deduplication are explored. Each scheme is compared in terms of their security and efficiency. Finally, the challenges in existing deduplication systems in the cloud and future research directions and challenges are discussed.


Citation Format:
S. Annie Joice, M. A. Maluk Mohamed, "Cloud Storage: A Review on Secure Deduplication and Issues," Journal of Internet Technology, vol. 20, no. 3 , pp. 861-873, May. 2019.

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