Abstract
Multimedia data play an important role in our daily lives. The evolution of internet technologies means that multimedia data can easily participate amongst various users for specific purposes, in which multimedia data confidentiality and integrity have serious security issues. Chaos models play an important role in designing robust multimedia data cryptosystems. In this paper, a novel chaotic oscillator is presented. The oscillator has a particular property in which the chaotic dynamics are around pre-located manifolds. Various dynamics of the oscillator are studied. After analyzing the complex dynamics of the oscillator, it is applied to designing a new image cryptosystem, in which the results of the presented cryptosystem are tested from various viewpoints such as randomness, time encryption, correlation, plain image sensitivity, key-space, key sensitivity, histogram, entropy, resistance to classical types of attacks, and data loss analyses. The goal of the paper is proposing an applicable encryption method based on a novel chaotic oscillator with an attractor around a pre-located manifold. All the investigations confirm the reliability of using the presented cryptosystem for various IoT applications from image capture to use it.
Highlights
Developments in the Internet of Things (IoT), cloud computing, and fifth-generation network technologies make multimedia data easy to share with various users for specific purposes
There was an idea that chaotic dynamics are related to saddle equilibria [6]
Based on the nonlinear features of the presented chaotic oscillator system, we present a novel image cryptosystem for IoT applications, in which the results of the presented cryptosystem are tested from various viewpoints
Summary
Developments in the Internet of Things (IoT), cloud computing, and fifth-generation network technologies make multimedia data easy to share with various users for specific purposes. The application of a chaotic oscillator with no equilibria was studied in [11]. Studying the bifurcation diagrams of the proposed system by different initiation methods shows the multistability of the system in some intervals of the bifurcation parameter. The encryption of medical images using a chaotic map was discussed in [25], and applying an exponential chaotic oscillator in secure communication was investigated in [26]. Based on the nonlinear features of the presented chaotic oscillator system, we present a novel image cryptosystem for IoT applications, in which the results of the presented cryptosystem are tested from various viewpoints. Presenting a novel chaotic oscillator, in which the chaotic dynamics are around prelocated manifolds. Designing a novel image cryptosystem for IoT applications, of which the design is based on the nonlinear features of the presented chaotic oscillator system
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