A Secure and Efficacious Data De-duplication System at Client Side in Cloud Computing: Enhancing Data Security and Efficiency in Cloud Computing

Abstract

The world today is moving to digitization, it leads to exponential increase and growth of data. Cloud based services use de-duplication technique to remove duplicate copies of data. Deduplication technique is useful for clients of public cloud to decrease storage space and network bandwidth consumption. A new client side de-duplication system is proposed to securely store data in public cloud and only unique copies of contents are stored in a cloud database. To protect the privacy of contents while providing support to de-duplication, a convergent encryption and merkle-based tree concepts are used. The authorized users can download the file from cloud storage and secure search on encrypted data is provided.