DATA SECURITY IN CLOUD COMPUTING USING ENCRYPTION AND OBFUSCATION TECHNIQUES

Abstract

Cloud computing is now a day s becomes the most attracted phenomena to use for large newlinescale organization or for individual who need various network services with least cost. newlineNormally individual s information is stored on public Cloud which is available to newlineeveryone for access. This fundamental raises some issue opposite to flexible services newlineprovided by cloud providers, like Confidentiality, Integrity, Availability, Authorization newlineand many more. newlineRecently, Lots of options are available to protect the data and most preferable ways is to newlineuse encryption. Encryption only can t provide enough protection while considering lots newlineof users sensitive information. It also consumes more time to perform encryption and newlinedecryption process for every single query. Secondly it s not a good practice to think newlineonly about user centric because once user data is uploaded on Cloud premises, user newlinedoesn t have direct control over this data. Considering this fact, we must need to think newlineabout the security of user s valuable information on Cloud server. This becomes newlinepossible using the important techniques that s obfuscation. To remove burden of Cloud newlineserver as well to provide adequate security to user s information, we propose a newlinemethodology by combining both techniques wiz. Obfuscation and Encryption in this newlinethesis. newlineThe user data may be encrypted if it requires security for its files or document and the newlineDaaS service of Cloud is secured using obfuscation techniques. Using these two way newlineapproach, we can say that the proposed scheme offers enough security towards newlineanonymous access and preserve privacy even the information available on Cloud newlineservers. Our aim is also to provide proper integrity checking mechanism, better access newlinecontrol mechanism, Group sharing mechanism etc. which lessen the burden and newlineincrease trust level between Client and Service Providers. newline