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The cloud computing model has revolutionized the computing world for more than a decade. The cloud computing has enormous advantages over the traditional computing. The cloud computing encompasses several benefits like, cost effectiveness, faster speed, takes lesser set up time, works on pay per use, has resilient service, round the clock availability, service availability on the go and may more. Along with all these advantages there are some issues and challenges with cloud computing. The one of the major issue in cloud computing is security of data or information shared in virtual environment of cloud. As the cloud model is based on the virtual machines which provide a virtual environment. Hence the data shared on the cloud becomes vulnerable for security breach. There is requirement to protect the data from every stake holders including cloud service providers. Various data security mechanism is used …