Steganography in WebP image using LSB embedding Master’s Project Proposal By Manchu Viswam

Introduction Steganography is the art of hiding information in ways that prevent the detection of hidden messages. Steganography combines Ancient Greek words steganos means “covered” and graphein means “writing.” The goal of digital steganography is to hide data in a digital object so that it cannot be detected through observation or by complex analysis. Least Significant Bit (LSB) insertion technique is exploited to embed data into a variety of digital media. 9/19/2014 WebP steganography , mviswam

LSB Insertion It is a popular and simple approach to embed data in the carrier file. It replaces least significant bits of the carrier file with the data to be embedded so that it cannot be detected by a human eye. The insertion can be done at any of the bits on the carrier file and it is mostly done in least significant bits to minimize the image distortion. 9/19/2014 WebP steganography , mviswam

Image Steganography In this Project, we will use Image as the Carrier file. We will be using WebP image format as the carrier to support image steganography. 9/19/2014 WebP steganography , mviswam

Motivation WebP is a new image format. It provides lossless and lossy compression for digital images. In WebP, lossless images are 26% smaller in size when compared to PNG images. In WebP, lossy images are 25-34% smaller in size when compared to JPEG images. 9/19/2014 WebP steganography , mviswam

Previous Work LSB steganography has been implemented for lossless image formats such as BMP, GIF, and PNG[Reddy, Reddy, Subramanyam 2011]. LSB steganography has also been implemented for lossy image format like JPEG[Elgabar 2013]. These image formats uses DIIT (Digital Invisible Ink Toolkit) open source Java based tool as the framework for steganography and steganalysis [Hempstalk 2006]. 9/19/2014 WebP steganography , mviswam

Project Goal Design and implement LSB steganography for WebP image format. Enhance steganalysis tool (DIIT) for WebP image format. Compare WebP image format with other image formats using payload capacity, invisibility, steganalysis detection, robustness against image manipulation, and Peak Signal to Noise Ratio (PSNR). We are proposing a new data embedding service [9]. 9/19/2014 WebP steganography , mviswam

Deliverables Working software to embed message in a WebP image using LSB embedding Working software to steganalyze a WebP stego image to retrieve the embedded message. Analysis of LSB steganography of WebP and other image formats. 9/19/2014 WebP steganography , mviswam

Project Schedule August 25, 2014 Fall2014 semester begins, project topic research work in progress September 13, 2014 Submit draft of project proposal September 19, 2014 Approved project proposal September 30, 2014 Completed LSB embedding in WebP October 10, 2014 Completed steganalysis for WebP October 20, 2014 Get the code bug free and compare the results with other image formats November 1, 2014 Completed project work and draft of report November 10, 2014 Completed final project report Before Nov 21, 2014 Completed project defense December 20, 2014 End of Fall 2014 term 9/19/2014 WebP steganography , mviswam

References [1] Johnson, Neil F., and Sushil Jajodia. "Exploring steganography: Seeing the unseen." Computer 31, no. 2 (1998): 26-34. [2] Abbas Cheddad, Joan Condell, Kevin Curran, Paul Mc Kevitt. “Digital image steganography: Survey and analysis of current methods.” Signal Processing, Volume 90, Issue 3, Pages 727-752,March 2010. [3] Elgabar, Eltyeb E. Abed, and Haysam A. Ali Alamin. "Comparison of LSB Steganography in GIF and BMP Images." International Journal of Soft Computing and Engineering (IJSCE) ISSN: 2231-2307, Volume-3, Issue-4, September 2013. [4] Kathryn Hempstalk"Hiding Behind Corners:Using Edges in Images for Better Steganography",January 2006. [5] Elgabar, Eltyeb E. Abed. "Comparison of LSB Steganography in BMP and JPEG Images." International Journal of Soft Computing and Engineering (IJSCE) ISSN: 2231-2307, Volume-3, Issue-5, November 2013. 9/19/2014 WebP steganography , mviswam

References(Continued) [6] Reddy, V. Lokeswara, A. Subramanyam, and P. Chenna Reddy. "Implementation of LSB steganography and its evaluation for various file formats." Int. J. Advanced Networking and Applications 2, no. 05 (2011): 868-872. [7] WebP – Google Developers https://developers.google.com/speed/webp [8]Ebrahimi, P. T. wg1n5578 WebP vs. Standard Image Coding. Technical report, ISO/ITU JPEG commitee, ICT-Link, 2010. [9] Marie Babel “From image coding and representation to robotic vision.” tel-00754550, version 1 - 20 Nov 2012. http://tel.archives- ouvertes.fr/docs/00/75/45/50/PDF/HDRBabel2012Final_ReducedQuality.pdf 9/19/2014 WebP steganography , mviswam