Cloud computing is an increasingly famous and growing technology which has led to a new dawn in the field of Information Technology. It has created a drastic change in the trend of different digital devices. Cloud Computing corresponds to both, the applications provided as services over the internet and the hardware elements and systems software in the data-centers that provide those respective services. In this paper, improving the security of data within the cloud when the data is migrated from one source to cloud or vice-versa, using an enhanced randomized encryption technique. During the analysis of providing security to a large amount of data in the cloud environment using various encryption techniques, we formulated that the asymmetric algorithms are incapable to encrypt a data in a bulk or in large amount when used singly. Security is the major issue in cloud computing system so we are using the concept of asymmetric algorithm when we are migrating one source file to the cloud.

Cloud computing, Software as a services, Encryption, Asymmetric algorithms, RSA, AES

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