A comprehensive study on cloud computing

Cloud computing plays the promising role in recent technology. Many companies are involved themselves in this computing to enjoy full-fledged services. But now the situation are not like that because of security issues. Security issues reduce the growth of the computing. In this paper we are surveying the security related issue and also we discuss the available technique to eradicate the issues. This work aims to provide the ways to reduce the security risk and also promote the performance of the cloud computing.