An image encryption algorithm based on DNA sequence addition operation

Abstract

A new image encryption algorithm based on DNA sequence addition operation is presented. First, a DNA sequence matrix is obtained by encoding the original image. Second, divide the DNA sequence matrix into some equal blocks and use DNA sequence addition operation to add these blocks. Thirdly, carry out DNA sequence complement operation for the result of added matrix by using two Logistic maps. At last, decoding the DNA sequence matrix from the third step, we will get the encrypted image. The simulation experimental results and security analysis show that our algorithm not only can get good encryption effect, but also can resist exhaustive attack, statistical attack and differential attack.