JIP_V3_N4_SP1 Lokanadham Naidu Vadlamudi Rama Prasad V. Vaddella Vasumathi Devara Journal on Image Processing 2349-6827 3 4 38 45 Content Based Image Authentication, Image Hashing, Integrity Verification, Robustness, Fragility At present, the multimedia data will be transmitted rapidly using an internet. But, whether the data reaches the recipient without tampering is questionable. The current multimedia editing software allows adversaries to alter multimedia data without changing its visual perception. Different categories of approaches exist for verifying the integrity as well as authenticity of multimedia data. The Content Based Authentication (CBA) is one among them. This review paper describes various Content Based Image Authentication (CBIA) methods, which have been developed for integrity verification of images. And also, this paper summarizes various techniques used in existing image authentication methods to extract robust features. In addition, this paper discusses the important characteristics of a CBIA approach, limitations of existing methods and future research directions. The development of robust and secure image authentication method for content authentication is still an open challenge for current researchers. October - December 2016 Copyright © 2016 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=8304