| Title | Generalized Chaos Synchronization Circuit Simulation and Asymmetric Image Encryption |
| Publication Type | Journal Article |
| Year of Publication | 2019 |
| Authors | Wu, Zhengze, Zhang, Xiaohong, Zhong, Xiaoyong |
| Journal | IEEE Access |
| Volume | 7 |
| Pagination | 37989–38008 |
| ISSN | 2169-3536 |
| Keywords | Asymmetric Encryption, asymmetric image, bifurcation, chaos, chaotic communication, chaotic system, circuit simulation, Color image, complex dynamic behavior, compositionality, confidential information, conventional chaos systems, conventional drive system, cryptography, diffeomorphism function, differential attack, digital image, digital images, Encryption, encryption algorithm, flexible control parameters, four-dimensional diffeomorphism function, four-dimensional nonlinear dynamic equation, GCS response system, generalized chaos synchronization circuit simulation, generalized chaos synchronization theory, generalized response system, Generalized synchronization, Human Behavior, image colour analysis, image correlation, information interaction, key sensitivity, keyspace, Lyapunov methods, Metrics, multimedia safe communications, Multisim software, network images, nonlinear equations, nonsymmetric identity authentication, numerical analysis, numerical calculations, numerical simulation, pubcrawl, quadratic variables, Resiliency, RGB digital image secure communication scheme, statistical analysis, statistical average, structural circuits, synchronisation, Synchronization, synchronous circuits, Trajectory, unpredictable synchronization state |
| Abstract | Generalized chaos systems have more complex dynamic behavior than conventional chaos systems. If a generalized response system can be synchronized with a conventional drive system, the flexible control parameters and unpredictable synchronization state will increase significantly. The study first constructs a four-dimensional nonlinear dynamic equation with quadratic variables as a drive system. The numerical simulation and analyses of the Lyapunov exponent show that it is also a chaotic system. Based on the generalized chaos synchronization (GCS) theory, a four-dimensional diffeomorphism function is designed, and the corresponding GCS response system is generated. Simultaneously, the structural and synchronous circuits of information interaction and control are constructed with Multisim(tm) software, with the circuit simulation resulting in a good agreement with the numerical calculations. In order to verify the practical effect of generalized synchronization, an RGB digital image secure communication scheme is proposed. We confuse a 24-bit true color image with the designed GCS system, extend the original image to 48-bits, analyze the scheme security from keyspace, key sensitivity and non-symmetric identity authentication, classical types of attacks, and statistical average from the histogram, image correlation. The research results show that this GCS system is simple and feasible, and the encryption algorithm is closely related to the confidential information, which can resist the differential attack. The scheme is suitable to be applied in network images or other multimedia safe communications. |
| DOI | 10.1109/ACCESS.2019.2906770 |
| Citation Key | wu_generalized_2019 |
Generalized Chaos Synchronization Circuit Simulation and Asymmetric Image Encryption