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.