GLDS: high dimensional Gauss-Logistic DNA System with Triad Hybrid Chaos for image encryption

Despite the easy construction and low hardware cost of the lower-order chaotic maps, they tend to endure a restricted set of controlling parameters and convergence periodicity, making them inappropriate for many real-time implementations of ciphering devices. To provide solution to above stated difficulty, a high dimensional image cryptosystem is proposed in this work. This study offers a novel Five Dimensional Gauss-Logistic DNA System (GLDS). The 5D GLDS is a complex five dimensional combination with DNA encoding of two popular 2D chaotic systems. Due to extensive pixel scrambling, the cryptographic complexity of the 5D Gauss Logistic Map is significantly increased. Further it is used with another hybrid chaotic maps combination, to realize the enhanced security in this work. The latter hybrid system incorporates a triad map, namely, the Standard map, Sine map, and Logistic map, which makes the system more resilient to attacks. The results show that the encoded image's histograms are equally distributed, with entropy values that are significantly closer to their bit depth. The system allows for a very large key space that can withstand crypto attacks. The statistical findings and security analysis indicate that the proposed 5D GLDS provides quality security when compared to some established cryptographic threats.