A novel image security technique based on nucleic acid concepts

Image security is very important to protect from any unauthorised user access. In this paper a two-phase secure image encryption has been proposed using the concepts of Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA). First, the plain image is encrypted based on DNA rules, DNA XOR operator, and chaotic map function in DNA phase and initial cipher image is created. Next, the cipher image is used as the input of RNA phase so that codons truth table for RNA and secret key are exploited for further image encryption. The proposed method has high resistance against common attacks in the field and achieved entropy of 7.9994. The implementation of the proposed method is available on https://github.com/mehdim7/RNA-DNA-Image-Encryption.