Design secure multi-level communication system based on duffing chaotic map and steganography

Cryptography and steganography are among the most important sciences that have been properly used to keep confidential data from potential spies hackers. They can be separately or together. Encryption involves basic principle of instantaneous conversion valuable information into a specific form unauthorized persons will not understand decrypt it. While is science embedding inside cover, in way cannot recognized seen by human eye. This paper presents high-resolution chaotic approach applied images hide information. A more secure reliable system designed include transmitted through transmission channels. done working use encryption work proposed new method achieves very high level hidden based on non-uniform systems generating random index vector (RIV) for within least significant bit (LSB) image pixels. prevents reduction quality. The simulation results also show peak signal noise ratio (PSNR) up 74.87 dB mean square error (MSE) values 0.0828, which sufficiently indicates effectiveness algorithm.