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Monday, 5 March 2018

A Hybrid Cloud Approach for Secure Authorized Deduplication

Abstract: Data deduplication is one of important data compression techniques for eliminating duplicate copies of repeating data and has been widely used in cloud storage to reduce the amount of storage space and save bandwidth. To protect the confidentiality of sensitive data while supporting deduplication the convergent encryption technique has been proposed to encrypt the data before outsourcing. To better protect data security, this work makes the first attempt to formally address the problem of authorized data deduplication. Different from traditional deduplication systems, the differential privileges of users are further considered in duplicate check besides the data itself. The work also presents several new deduplication constructions supporting authorized duplicate check in hybrid cloud architecture. Security analysis demonstrates that our scheme is secure in terms of the definitions specified in the proposed security model. As a proof of concept, the work implement a prototype of proposed authorized duplicate check scheme and conduct tested experiments using the prototype. The work shows that the proposed authorized duplicate check scheme incurs minimal overhead compared to normal operations. A Hybrid Cloud Approach for Secure Authorized Deduplication
Conclusion and Future Work
A Hybrid Cloud Approach for Secure Authorized Deduplication Project, the notion of authorized data deduplication was proposed to protect the data security by including differential privileges of users in the duplicate check. A Hybrid Cloud Approach for Secure Authorized Deduplication project we perform several new deduplication constructions supporting authorized duplicate check in hybrid cloud architecture, in which the duplicate-check tokens of files are generated by the private cloud server with private keys. As a proof of concept in this project we implement a prototype of our proposed authorized duplicate check scheme and conduct testbed experiments on our prototype. From this project we show that our authorized duplicate check scheme incurs minimal overhead compared to convergent encryption and network transfer.
Futures work: It excludes the security problems that may arise in the practical deployment of the present model. Also, it increases the national security. It saves the memory by deduplicating the data and thus provides us with sufficient memory. It provides authorization to the private firms and protects the confidentiality of the important data

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