Addressing Data Security and Performance Issues on the

Cloud computing has, with its advent, brought what IT always dreamt of adding capabilities on the fly without any new investments, thereby also reducing the cost. Be it an individual or a big organization, everyone is using cloud computing either knowingly or unknowingly. If we talk about the services and advantages of cloud computing, the benefits are astonishing like pay-as-you-go service, flexibility, accessibility, scalability, etc. but what is it that is still bothering the cloud providers and its customers? Some famous and prominent attacks indicate the lack of security in the cloud which ultimately leads to mistrust of customers toward the cloud provider. Although, cloud computing provides security to some extent, but the rising demand and use of big data require a solution to the poor security in the cloud. Confidentiality and privacy are the main reasons that people still hesitate to use the services of cloud in-spite of such promising technology and positive outcomes. For this purpose, we are proposing a technique in which the centralized data is fragmented based on its sensitivity and thereby improving the performance also