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A Steganography System Based on Dual Chaotic Encryption and Singular Value Shifting

Information security has been given increasingly attention especially in multimedia related fields, and how to ensure transmission safety of confidential information is a significant and challenging problem. We build a system combing dual chaotic encryption of texts and information hiding technique based on a modified maximum singular shifting method with images as carriers. We utilize the advantages of dual chaotic mapping in randomness, complexity and safety to encrypt plain texts. Conventional steganography is advanced by introducing outstanding properties of SVD into our system so that robustness and imperceptibility are largely improved. Experiments demonstrate that system performs well both in robustness and image visual effect.