Secure Secret Key Transfer Using Modified Hash Based LSB method

Recent advancements in computer security have shifted the focus of security officials from, using only the cryptography techniques to using steganography as well, or the combination of both. In steganography the most widely used technique is the LSB method, but this technique being the simplistic of all, is well known and hence is vulnerable to attacks. However, modifying the LSB method to the point where it would be difficult or impractical to find the hidden message is a domain where an extensive work and research is required. Due to the simplistic nature of the LSB method, this technique can be modified easily. But the main crux lies in the way this modification is done. Therefore, in this paper we discuss a modified version of the LSB, a Hash Based LSB technique and a hiding method that further hides the existence of the message into the cover image. We call this hiding method as the 'XOR Feed' method. Keywords— Modified Hash Based LSB, XOR Feed, Image Steganography, Spatial Domain, Grayscale Image.