¹Department of Computer Science and Engineering, Jatiya Kabi Kazi Nazrul Islam University, Bangladesh.
²Department of Computer Science and Information Technology, The University of Fiji, Fiji.

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Abstract—Nowadays Cloud computing has made a revolutionary change in the concept of computation on the web. It has been able to provide low cost services to its users all over the world. Millions of users are using the service of cloud either by IaaS, PaaS and SaaS. Now the main concern of cloud service providers and users how to preserve security in these low cost services. Throughout this research we have first reviewed some cost minimization technique and data security approaches used in the cloud. Then we propose a novel data hiding approach called ‘D2i2D’ which is able to provide security to any data stored in the cloud as well as reduce the file size in cloud storage. Our technique is based on data to RGB image and RGB image to data conversion technique with multiple-key-cryptography (MKC) to provide more security on cloud data. We have been able to show that this technique is able to reduce 38.82% of storage where file size is less than 1 MB and 30.34% of storage where file size is within 1 to 2 MB. Lastly we propose a framework to implement this technique in cloud.

Index Terms—Cost minimizing, cryptography, cloud, multiple key, storage, security, framework.

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Cite: Tushar K. Saha, A. B. M. S. Ali, "D2i2D: A Novel Secure Approach for Cloud Storage with Cost Minimization," Journal of Software vol. 11, no. 8, pp. 787-802, 2016.