International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Cloud computing is the new paradigm which provides services on demand from shared pool of computing resources. This new paradigm brings about new security challenges. Cloud is equal with the internet. There are various risk associated with the security but major issues are data privacy and data stealing. This paper studies on confidentiality, integrity and authentication of data storage in the cloud. User has to confirm that the data on the cloud neither compromised nor corrupted, thus makes authentication and authorization for data access is necessary.