An image encryption algorithm based on multi-chaotic systems and DNA

In this research, we provide a method for encrypting digital images that is based on DNA block encoding and multi-chaotic systems. First, create a scrambling matrix using the one-dimensional logistic chaotic map, then split both the plain image matrix and the scrambling matrix into sub-blocks of the same size. Next, for DNA encoding, decoding, and operation between the respective sub-blocks, four chaotic sequences produced by Lorenz hyperchaotic system are employed. We may finally obtain the cipher picture using the two-dimensional logistic map of the scrambled image. The technique in this study performs well in simulation studies for statistical analysis, sensitivity analysis, and robustness analysis. As a result, the encryption method can withstand many typical assaults and provide the level of security required.