Security of multimedia communication with game trick based fast, efficient, and robust color‐/gray‐scale image encryption algorithm

Abstract Freshly, an innumerable chaotic system based complex and more time‐consuming image encryption algorithms have been proposed. The majority of those have scrambling and diffusion like two phases or rounds before performing the actual encryption, which leads toward extra time consumption. So unlike those, this article presents a novel image encryption algorithm that is based on game trick. The proposed novel method is DNA based and it can accomplish dual function with one round, that is, scrambling for the bit planes and diffusion for the pixels, So we called it as DNA‐SPD. First of all, a random matrix equivalent to the size of the original image is generated through a python random array generator and seed value of the 512‐bit hexadecimal key of the original image. Second, it performs the pixel adaptive additions with MA between pixels of a plain image, random matrix, the integer value of the hash key entity, and the decimal number (DN). Third, it extracts each channel from the color image and convert it into the binary bit planes, then transformed it into the DNA bit planes through particular DNA rules. Finally, a universal DNA rule utilized to get back encrypted pixels. Various security analysis and comparison of projected results show that the proposed novel encryption method gives better results in a lesser amount of time. The proposed algorithm is robust against the well‐known and effective attacks, that is, known/chosen plaintext attacks, differential attacks, and the statistical attacks. Therefore, the proposed algorithm is more secure and reliable for the security of image communication.