On chaos synchronization and secure communication

2010 ◽  
Vol 368 (1911) ◽  
pp. 379-389 ◽  
Author(s):  
W. Kinzel ◽  
A. Englert ◽  
I. Kanter
Keyword(s):  
Polynomial Time ◽  
Secure Communication ◽  
Chaos Synchronization ◽  
Unidirectional Coupling ◽  
Complete Problems ◽  
Chaotic Laser ◽  
Transmission Of Information ◽  
Laser Systems ◽  
Public Channel

Chaos synchronization, in particular isochronal synchronization of two chaotic trajectories to each other, may be used to build a means of secure communication over a public channel. In this paper, we give an overview of coupling schemes of Bernoulli units deduced from chaotic laser systems, different ways to transmit information by chaos synchronization and the advantage of bidirectional over unidirectional coupling with respect to secure communication. We present the protocol for using dynamical private commutative filters for tap-proof transmission of information that maps the task of a passive attacker to the class of non-deterministic polynomial time-complete problems.

CHAOS SYNCHRONIZATION VIA UNIDIRECTIONAL COUPLING AND ITS APPLICATION TO SECURE COMMUNICATION

2009 ◽  
Vol 23 (32) ◽  
pp. 5949-5964 ◽  
Author(s):  
XINGYUAN WANG ◽  
MINGJUN WANG
Keyword(s):  
Secure Communication ◽  
Chaos Synchronization ◽  
Function Method ◽  
The Self ◽  
Largest Lyapunov Exponent ◽  
Global Synchronization ◽  
Unidirectional Coupling ◽  
Response System ◽  
Lyapunov Function Method ◽  
Simulation Results

This paper studies chaos synchronization via unidirectional coupling. The self-synchronization of Lorenz systems, modified coupled dynamos systems and hyperchaotic Chen systems is studied by three methods: the Lyapunov function method, the global synchronization method and the numerical calculation of the largest Lyapunov exponent method. In regard to application to communication, we show that via transmitting single signal the synchronization of the drive system and the response system can be achieved. An example of applying self-synchronization of hyperchaotic Chen systems to chaotic masking secure communication is presented in this paper. Simulation results show the effectiveness of the method.

Numerical Simulation of Chaotic Laser Secure Communication

2013 ◽  
Vol 798-799 ◽  
pp. 570-573
Author(s):  
Qiang Ke
Keyword(s):  
Numerical Simulation ◽  
Communication System ◽  
Secure Communication ◽  
Chaos Synchronization ◽  
Laser Communication ◽  
Communications Systems ◽  
Chaotic Laser

Using the idea of drive-response synchronization, we discuss the principle, numerical simulation of chaotic laser communication. Compared to traditional communications systems, the chaotic laser communication system has a well-kept secret performance, but the chaos synchronization requirements are very strict.

scholarly journals Physical random bit generators and their reliability: focusing on chaotic laser systems

2015 ◽  
Vol 6 (2) ◽  
pp. 133-143 ◽  
Author(s):  
Masanobu Inubushi ◽  
Kazuyuki Yoshimura ◽  
Kenichi Arai ◽  
Peter Davis
Keyword(s):  
Chaotic Laser ◽  
Laser Systems ◽  
Random Bit Generators

An Adaptive Chaos Synchronization with Controller and Secure Communication

2013 ◽  
Vol 401-403 ◽  
pp. 1657-1660
Author(s):  
Bin Zhou ◽  
Xiang Wang ◽  
Yu Gao ◽  
Shao Cheng Qu
Keyword(s):  
Adaptive Control ◽  
Lyapunov Stability ◽  
Stability Theory ◽  
Secure Communication ◽  
Chaos Synchronization ◽  
Lyapunov Stability Theory ◽  
Adaptive Controller ◽  
Adaptive Synchronization ◽  
Sufficient Condition ◽  
Control Parameters

An adaptive controller with adaptive rate is presented to synchronize two chaos systems and to apply to secure communication. Based on Lyapunov stability theory, a sufficient condition and adaptive control parameters are obtained. Finally, the simulation with synchronization and secure communication is given to show the effectiveness of the proposed method. Keywords: adaptive; synchronization; observer; controller.

scholarly journals Time-Delay Robust Nonlinear Dynamic Inversion for Chaos Synchronization with Application to Secure Communications

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Eunro Kim ◽  
Inseok Yang ◽  
Dongik Lee
Keyword(s):  
Time Delay ◽  
Nonlinear Dynamic ◽  
Secure Communication ◽  
Chaos Synchronization ◽  
Chaotic Behavior ◽  
Control Technique ◽  
Delay Systems ◽  
Dynamic Inversion ◽  
Synchronization Problem ◽  
Nonlinear Dynamic Inversion

The time-delay robust nonlinear dynamic inversion (TDRNDI) control technique is proposed to synchronize time-delay Chen systems. The time-delay Chen circuit is simple but exhibits complex irregular (chaotic) behavior. For this reason, this circuit can be efficiently used to encrypt messages for secure communication. In this paper, the nonlinear control-based chaos synchronization problem is considered. The proposed TDRNDI controller is a modified version of a robust nonlinear dynamic inversion (RNDI) applicable to chaotic systems, including time-delay systems. The performance and feasibility of the proposed TDRNDI controller are demonstrated by conducting numerical simulations with application to a secure communication network.

scholarly journals Breaking projective chaos synchronization secure communication using filtering and generalized synchronization

2005 ◽  
Vol 24 (3) ◽  
pp. 775-783 ◽  
Author(s):  
G. Álvarez ◽  
Shujun Li ◽  
F. Montoya ◽  
G. Pastor ◽  
M. Romera
Keyword(s):  
Secure Communication ◽  
Chaos Synchronization ◽  
Generalized Synchronization

Study on Discreted Fifth-Order CNN Hyper-Chaos Synchronization Reduced Order Observer

2011 ◽  
Vol 135-136 ◽  
pp. 960-963
Author(s):  
Jie Xu ◽  
Juan Chang ◽  
Lian Zhang ◽  
Yong Sun
Keyword(s):  
Neural Networks ◽  
Continuous Time ◽  
Secure Communication ◽  
Chaos Synchronization ◽  
State Observer ◽  
Cellular Neural Networks ◽  
Reduced Order ◽  
Reduced Order Observer ◽  
Fifth Order ◽  
Order State

Secure communication with the hyper-chaos synchronization approach is the popular investigation. In this paper the fifth-order Cellular Neural Networks(CNN) hyper-chaos equation of continuous time was discreted. The innovation was that the synchronization of the hyper-chaos system was realized with the discreted reduced order state observer. Finally, the system stabilizing to zero after fugacious transition and achieving synchronization were validated by simulations, which showed the algorithm’s availability.

Sign in / Sign up

Export Citation Format

Share Document