Abstract
Steganography is a method of concealing sensitive data while transmitting it over public networks and it is regarded as one of the invisible security techniques. This paper proposed a new method to encrypt and hide a 24-bit color secret image within a larger 24-bit color cover image using the Bayer pattern principle and LSB algorithm. The secret image goes through a series of special steps of DNA encryption. Then hides to ensure more confidentiality and be more difficult for the attackers’ attempts. In this method, each pixel in the secret image is hidden in a 3 × 3 block from the cover image except the center of the block that is used as a public key. These blocks randomly select from the rows and columns of the cover images. The secret image pixels and the center selected block pixels are encrypted in a special method using DNA rules. Then, encoding the resulted encrypted image and encrypted center blocks selected pixels using the DNA-XOR operation. Finally, hiding the resulted image pixels using the Least Significant Bit (LSB) algorithm with locations determined by a modified Bayer pattern. The experimental results show the efficiency of the proposed method to produce a high-quality stego image and the results are acceptable when applying the Structural Similarity Index Metric (SSIM) and Peak Signal to Noise Ratio (PSNR) quality metrics and compared with other method.
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Abbood, E.A., Neamah, R.M., Ismail, Q.M. (2021). Image Steganography Based on DNA Encoding and Bayer Pattern. In: Al-Bakry, A.M., et al. New Trends in Information and Communications Technology Applications. NTICT 2021. Communications in Computer and Information Science, vol 1511. Springer, Cham. https://doi.org/10.1007/978-3-030-93417-0_4
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