Shijie Zhang's research while affiliated with Nanchang University and other places
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Publications (4)
Chaotic systems have good characteristics, such as sensitivity to initial value and parameter, ergodicity, certainty and so on. Using chaos to generate pseudo-random sequences for encryption has good efficiency and security. However, due to the limitation of computing precision, the chaotic sequence running on the computer will enter a cycle after...
Classical one-dimensional chaotic map has many ideal characteristics which is quite suitable for many different kinds of scientific fields, especially cryptography. In this paper, we propose an idea of constructing high-dimensional (HD) cyclic symmetric chaotic maps by using one-dimensional (1D) chaotic map. Two constructed 3D cyclic symmetric chao...
Chaos systems have been widely used in image encryption algorithms. In this article, we introduce an LB (Logistic-Baker) compound chaotic map that can greatly improve the complexity of original Logistic map and Baker map, as well as the generated sequences have pseudo-randomness. Furthermore, based on the LB compound chaotic map, an image encryptio...
Using chaotic system for image encryption is a feasible and popular research interest. In this paper, a compound Sine-Piecewise Linear Chaotic Map is proposed to improve the chaotic characteristics of the original chaotic map. Compared with the original chaotic system, the proposed compound chaotic system has better dynamics performances, larger pa...
Citations
... Dynamic characteristics are degraded when simulating on a computer, especially for low-dimensional chaotic maps. Referring to this defect of low-dimensional chaotic maps, reference (Zhang and Liu 2023) tried to combine existing one-dimensional maps to increase the quality of chaos and the complexity of random production. Considering that it is important to use the randomness of chaotic maps in producing a chaotic S-box, using a new quantum chaotic map with high complexity and high dimensions can be more useful. ...
... 3. According to the first four keys generated as the initial value, iterate the equation (9) L × W × 3 times, take a 1 = 1.9, a 3 = 0.1, precision is 16, to get two sequences X, Y, where X is used to generate the diffusion matrix D, Y is sorted to get the index Y index , and the last four keys are also used as the initial value, iterate the equation (9) L × W times to get two sequences X1, Y1, X1 has two purposes , one is used to determine the kind of DNA operation and the other is used to determine the DNA encoding rules, and Y1 is used to generate the decoding rules. The elements of matrix D are obtained from equation (17), DNA operation kinds are obtained from equation (18), DNA encoding rules are obtained from equation (19), and DNA decoding rules are obtained from equation (20). ...
... Coupled discrete hyperchaos [24] has high system complexity and implementation efficiency, thus it is more acceptable for cipher design. Numerous chaotic encryption schemes [25][26][27] have been proposed in the past few decades; however, few comprehensive cryptanalyses are provided in these studies. These ciphers are claimed to be secure, but many of them are actually not. ...
... As highlighted by Zhang and Liu [13], DNA coding has several advantages such as massive storage, high parallelism, and ultralow power consumption. In fact, such advantages were utilized in image encryption. ...
