New Steganography Technique with Symmetric Cryptography

This paper describes about cryptography and a short survey on steganography techniques. We also mention the strong and weak points of these techniques briefly. Steganography is a science dealing with the hiding of the secured information in a harmless signal. An image, audio or video files may be used to embed the information. For image steganography, binary, gray scale or color images may be used as cover-images for hiding the secret data. In this paper a novel information hiding approach has been proposed in spatial domain, to improve Imperceptibility, efficiency and Security. The proposed approach expected result in less difference between the cover and stego image, high efficiency high Peak signal-to-noise (PSNR) value and make it much harder for the steganalysis algorithm to detect the hidden information.