Kish Cypher, The: The Story Of Kljn For Unconditional Security

What is Secure Communication and Secure Key Exchange?; What is Conditional and Unconditional Security?; How Does Quantum Physics Do It? The Core Principle of The Security of Quantum Key Distribution; Can it Be Done by Classical Physics? It Seemed Impossible; The General Problem with Information Carried by Classical Physical Quantities; Early Attempts by the Author That Failed; Here is Thermodynamics to Help: The Second Law and Johnson Noise (Johnson Noise and Its Key Properties to Both Laymen and the Experts); The Idealized KLJN System. When it is Unconditionally Secure Against Passive and Invasive Attacks and When it is Not; Practical Problems and Hacking: The Devil in The Details. The Situation of Non-Idealities Discussed, Related Hacking Attacks and How to Defend Against Them; Experiments and Results. The Laboratory Demonstration and Related Experiments; The Results (Experimental and Theoretical) for All Known Attack Types and The Performance of The Defense Mechanisms; Privacy Amplification: What It is and Why It is So Effective Here?; Introducing Privacy Amplification and Showing The Effectiveness of the KLJN System to Reduce Security Leaks to Almost Zero; Fields of Applications: Networks, Power Lines, Between Computers and Within Computers, Games and Instruments; Open Problems.