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Steganography is a technique of hiding secret information into an innocent looking container. Although a large number of steganography techniques exist, there is a constant need for new ones because they have a relatively short lifespan, being constantly defeated by steganalysis methods. Least Significant Bit substitution (LSB) is one of the best known steganography techniques. It embeds the secret data into the LSB of image pixels. The main advantages of this technique are simplicity and high embedding capacity, but the main disadvantage is weakness. The method is easily detected by staganalysis methods. This article explores the possibilities of increasing the strength of LSB steganography by shuffling the image container pixels following a rule dictated by the pixels taken from a second image. The proposed method also contains an encryption block that adds an extra layer of security to the hidden data.
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