Cryptology Transmitted Message Protection: From Deterministic Chaos up to Optical Vortices

This book presents methods to improve information security for protected communication. It combines and applies interdisciplinary scientific engineering concepts, including cryptography, chaos theory, nonlinear and singular optics, radio-electronics and self-changing artificial systems. It also introduces additional ways to improve information security using optical vortices as information carriers and self-controlled nonlinearity, with nonlinearity playing a key “evolving” role. The proposed solutions allow the universal phenomenon of deterministic chaos to be discussed in the context of information security problems on the basis of examples of both electronic and optical systems. Further, the book presents the vortex detector and communication systems and describes mathematical models of the chaos oscillator as a coder in the synchronous chaotic communication and appropriate decoders, demonstrating their efficiency both analytically and experimentally. Lastly it discusses the cryptologic features of analyzed systems and suggests a series of new structures for confident communication.

Table of Contents

Chapter 1 Deterministic Chaos Phenomenon from the Standpoint of Information Protection Tasks
Chapter 2 Radiophysical and Optical Chaotic Oscillators Applicable for Information Protection
Chapter 3 Radio Electronic System for Data Transmission on the Base of the Chaotic Oscillator with Nonlinearity in the form of Parabola Composition: Modeling and Experiment
Chapter 4 Single- and Double-Circuit Nonlinear Ring Interferometer as a Cipherer in Optical Systems of Synchronous Chaotic Communications
Chapter 5 Optical Vortices in Ring and Non-ring Interferometers and a Model of the Digital Communication System
Chapter 6 Variety of Nonlinear Type in the Chaotic Oscillator and Structure Organization of the Chaotic Communication System as a Way to Increase the Confidence Degree
Chapter 7 Nonlinear-Dynamic Cryptology Versus Steganography and Cryptografics