Privacy-Preserving in Cloud Computing with Security-as-a-Service

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Cloud computing is on-demand delivery of data and IT resources in which applications are rapidly provisioned as standardized offerings to users over the web. In the recent years Cloud Computing has grown significantly, it became an important area of research and one of the vital areas in the redevelopment of the infrastructure of information technology. Cloud Computing has been classified into several models based on the type of service provided to customers. Cloud Computing has many benefits, as well as, it has many challenges and concerns such as: security, privacy, data integrity and other problems that make users and organizations fear to dealing with it. The main problem in Cloud Computing is the security of data. The proposed work focuses on secure data transfer by using different combination of mechanisms which not only ensure multi tier authenticities but also maintain the confidentiality of data and integrity of message in terms of authenticity, confidentiality and integrity of data. The proposed system aims to store data in a secure and safe way in order to avoid intrusions and attacks. Also, it will reduce the cost and time to store the encrypted data in the Cloud Computing. In this paper, ECC encryption and decryption algorithm has been proposed to maintain the confidentiality of data in transfer. The same algorithm is implemented in cloud architecture and is compared with the conventional RSA algorithm.