A New Image Encryption and Steganography Scheme

With the development of network technique, the research of information security technique is becoming more and more important. In this paper, we proposed a new image encryption and steganography scheme. First, the secret message is encrypted through the combination of a new gray value substitution operation and position permutation which makes the encryption system strong. And then the processed secret message is hidden in the cover image to fulfill steganography. Experimental results show that the scheme proposed in this paper has a high security level and better image stego-image quality.