JCC_V1_N2_RevP1 P. Dileep Kumar Reddy R. Praveen Sam C. Shoba Bindu Journal on Cloud Computing 2350-1308 1 2 13 19 Cloud Computing, Data Confidentiality, Security, Encryption There is one internet technology that is growing very fast, that is nothing but cloud computing, which facilitates users to use resources without help of installation of any software. Cloud computing provides some information storage with its services. One of the challenges in the current research in cloud computing is Data confidentiality. User's private data is stored in third service party providers, who do operations on this data. So the risk of exposure of user's private data is high. Previous solutions to save the information mainly rely on cryptographic approaches. This paper gives information regarding some previous approaches to keep protection of the confidentiality of users. February - April 2014 Copyright © 2014 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3052