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Erschienen in:
2021 | OriginalPaper | Buchkapitel
8. A LSB Substitution-Based Steganography Technique Using DNA Computing for Colour Images
verfasst von : Subhadip Mukherjee, Sunita Sarkar, Somnath Mukhopadhyay
Erschienen in: Proceedings of International Conference on Innovations in Software Architecture and Computational Systems
Verlag: Springer Singapore
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Abstract
Steganography is the process of using a cover or medium such as photograph, audio, text and video to shield information from the outer world. This paper suggested a new approach based on DNA computing for hiding information within an image using the least significant bit (LSB). To do this, the DNA is decomposed by four nucleotides, namely adenine, thymine, guanine and cytosine. Whereas a codon is a sequence of three nucleotides and to represent a codon, the two-pixel LSBs from the image are taken and then converted into protein. The confidential data bits are concealed into the codons, which transmutes the original cover image into a stego-image which is completely trustworthy to avoid human visual system, and the confidential data is impossible to detect. The empirical findings show the effectiveness of the suggested approach by producing 0.750 bpp of hiding power with average 56.48 dB of peak signal-to-noise ratio (PSNR) which makes it a strong image steganography technique.