Abstract
The paper proposes an improved reversible substitution method to hide data into deoxyribonucleic acid (DNA) sequence, and four measures have been taken to enhance the robustness and enlarge the hiding capacity, such as encode the secret message by DNA coding, encrypt it by pseudo-random sequence, generate the relative hiding locations by piecewise linear chaotic map, and embed the encoded and encrypted message into a randomly selected DNA sequence using the complementary rule. The key space and the hiding capacity are analyzed. Experimental results indicate that the proposed method has a better performance compared with the competing methods with respect to robustness and capacity.
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Acknowledgments
The research is supported by the National Natural Science Foundation of China (No. 61363082) and the Minority Nationality Technology Talent Cultivation Plan of Xinjiang (No. 201123116).
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Liu, G., Liu, H. & Kadir, A. Hiding message into DNA sequence through DNA coding and chaotic maps. Med Biol Eng Comput 52, 741–747 (2014). https://doi.org/10.1007/s11517-014-1177-3
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DOI: https://doi.org/10.1007/s11517-014-1177-3