Novel chaotic image cryptosystem based on dynamic RNA and DNA computing

Shuang Zhou, Yi Wei, Shiyu Wang, Herbert Ho Ching Iu, Yingqian Zhang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In view of the security problems of image encryption algorithms encoded by single DNA or RNA, to increase the randomness of the diffusion process and the uncertainty of the coding rules, we propose a combining dynamic RNA and DNA computing based chaotic image encryption algorithm, which has a more complicated encryption process for improving the security of the encryption algorithm and increases the difficulty of decoding. First, a new three-dimensional hyperchaotic map is proposed, which exhibits a rich set of dynamic behaviors. Second, the sequences generated by the proposed map are passed to NIST test with good randomness and implemented by digital signal processing hardware, which shows the feasibility of the proposed chaotic map for industrial applications. Second, the K-means algorithm is used to split the plaintext into two parts. Third, the chaotic sequence is used to displace and diffuse the two parts of the plaintext, respectively. Then, chaotic sequences were used to encode using dynamic DNA and RNA of these two parts, respectively. Then, the chaotic sequences were used to compute the dynamic DNA and RNA computing of these two parts, respectively. Finally, the cipher text is decoded accordingly. The experimental results show that compared with some related encryption algorithms, our method has higher security.

Original languageEnglish
Article number184302
Number of pages19
JournalJournal of Applied Physics
Volume136
Issue number18
DOIs
Publication statusPublished - 14 Nov 2024

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