Pragmatic approach to conquer security perturbation in cloud computing using level classification

Cloud computing is an emerging technology and leads to marvelous impact on many domains such as industry and academia. It considered as one of the widely accepted technologies worldwide. During these days people to avoid the expense of IT infrastructure and maintenance they are started adopting the cloud services. When we choose cloud service security is most significant obstacle and data security is biggest hurdle in case of security. When data is store on servers it may store directly or with encryption of whole data. But we know data have different characteristics and needs so different security levels are required. So in this paper we review some classification algorithms to classify the data on basis of their different security needs. After classification which part required more security that can be encrypted by various cryptographic techniques and then store it over the cloud whereas other part can store directly without any encryption on cloud storage. For further security we can partition the cloud storage. And this will help us to overcome the security issue i.e. confidentiality and also save our efforts and time of encryption and uploading of data over data storage. It prevents the data leakage also because after classification hacker will also not able to know the starting and ending point of data and it will also difficult for him to hack multiple storage than single. This paper prevents the data leakage, hassle vogue menace to find position of data eventually difficult for attacker to hack multiple storage than single level security as used in conventional model.