JCC_V2_N1_RP1 K. Nethaji Sundar Sukumar L. Venkateswara Reddy Journal on Cloud Computing 2350-1308 2 1 24 31 Privacy, Encryption, Public clouds Nowadays privacy preserving is the challenging issue of public clouds. The data of fine-grained access control are enforced on confidential data hosted into the public clouds of storage. Single layer encryption (SLE) approach is to encrypt the data into public clouds by using encryption algorithm, and two layer encryption (TLE) approach is to encrypt the data before uploading into the clouds on storage. These two approaches are facing the problem of computational cost and communications process of data owner and public clouds. So, these problems are reduced by using new approach of multi layer encryption approach. In this approach, multiple keys are provided for end users and accessing the data from public clouds. So, the authors are using an algorithm known as Attribute Based-Group Key Management (AB-GKM). November 2014 - January 2015 Copyright © 2015 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3303