Purpose

In this paper, a nine-dimensional chaotic system is designed and applied to secure communication.

Design/methodology/approach

Firstly, the equilibrium characteristics, dissipativity, bifurcation diagram and Lyapunov exponent spectrum are used to analyze the relevant characteristics of the proposed nine-dimensional chaotic system. In the analysis of Lyapunov exponential spectrum, when changing the linear parameters, the system shows two states, hyperchaos and chaos. For secure communication, there is a large secret key space. Secondly, C0 complexity and SEcomplexity of the system are analyzed, which shows that the system has sequences closer to random sequences.

Findings

The proposed nine-dimensional system has a large key space and more complex dynamic characteristics

Originality/value

The results show that the proposed nine-dimensional hyperchaotic system has excellent encryption capabilities and can play an important role in the field of secure communication.

中文翻译：

---

9维全局混沌系统设计及其在保密通信中的应用

目的

在本文中，设计了一个九维混沌系统并将其应用于安全通信。

设计/方法/方法

首先，利用平衡特性、耗散性、分岔图和李雅普诺夫指数谱分析所提出的九维混沌系统的相关特性。在李雅普诺夫指数谱分析中，当改变线性参数时，系统表现出两种状态，超混沌和混沌。为了安全通信，有一个很大的秘密密钥空间。其次，分析了系统的C0复杂度和SEcomplexity，表明该系统具有更接近随机序列的序列。

发现

提出的九维系统具有较大的关键空间和更复杂的动态特性

原创性/价值

结果表明，所提出的九维超混沌系统具有优异的加密能力，可以在安全通信领域发挥重要作用。