A New Image Encryption Algorithm Based on Composite Chaos and Hyperchaos Combined with DNA Coding

Abstract

In order to obtain chaos with a wider chaotic scope and better chaotic behavior, this paper combines the several existing one-dimensional chaos and forms a new one-dimensional chaotic map by using a modular operation which is named by LLS system and abbreviated as LLSS. To get a better encryption effect, a new image encryption method based on double chaos and DNA coding technology is proposed in this paper. A new one-dimensional chaotic map is combined with a hyperchaotic Qi system to encrypt by using DNA coding. The first stage involves three rounds of scrambling; a diffusion algorithm is applied to the plaintext image, and then the intermediate ciphertext image is partitioned. The final encrypted image is formed by using DNA operation. Experimental simulation and security analysis show that this algorithm increases the key space, has high sensitivity, and can resist several common attacks. At the same time, the algorithm in this paper can reduce the correlation between adjacent pixels, making it close to 0, and increase the information entropy, making it close to the ideal value and achieving a good encryption effect.

Lightweight Encryption Technique to Enhance Medical Image Security on Internet of Medical Things Applications

“…An image encryption method tries to transform a picture into some other picture hard to realize. Security mechanisms deployed in present digital healthcare image methods are mainly based on traditional encryption methods like DES, AES, IDEA, and RSA [16]. It is appealing to create an effective healthcare image encryption scheme, particularly for real-time teleradiology or any other internet remote examinations, where big electronic medical pictures are transmitted more than public networks.…”

“…The existing encryption techniques have been utilized the data encryption standard, advanced encryption standard, and Rivest-Shamir-Adleman algorithms for resolving the challenges for the circumstances of low-level efficiency though considering the low of size data as well as high redundancy [14], [15], [16], [16]. Therefore, these algorithms are hard enough to handle and ensure the appropriate encryption for medical images in the IoMT framework [9], [17], [18], [19].…”

Image Encryption Using Elliptic Curves and Rossby/Drift Wave Triads

“…It follows from Table 11 that the security level of our scheme is comparable to that of the schemes in [ 3 , 59 ]. The technique in [ 60 ] uses double chaos along with DNA coding to get good results, as shown in Table 11 , but the results obtained by the new scheme are better than that of [ 60 ]. Similarly the technique in [ 31 ] encrypts images using ECs but does not guarantee an S-box for each set of input parameters, thus making our scheme faster and more robust than the scheme developed in [ 31 ].…”

A Novel Hyperchaotic Image Encryption System Based on Particle Swarm Optimization Algorithm and Cellular Automata

“…However, Wu discovered that the image encryption scheme based on three-dimensional bit matrix permutation was not suitable for secure communication. For this reason, an improved encryption scheme was proposed which ensured that the parameter values in chaotic systems depend not only on the key but also on the plain image [33].To solve the problems of single DNA coding rules and low sensitivity of chaotic encryption algorithm to key, the image encryption schemes based on DNA computing were introduced [34][35][36][37][38][39][40][41]. Hu et al [36] proposed an image encryption scheme using a high-dimensional hyperchaotic system to generate the key stream and control the DNA coding rules, so as to achieve the effect of random coding.…”