The Mitre Corporation

Christophe F Bas

Nicholas C Donnangelo

David Gervais

Joseph J Rushanan

Marvin D Drake

Substantially identical numerical sequences known only to stations A and B are generated in a manner not subject to duplication by an eavesdropper and not subject to cryptanalytic attack because they are not derived using a mathematical function (such, as for example, factoring). The sequences are independently derived utilizing a physical phenomena that can only be 'measured' precisely the same at stations A and B. Signals are simultaneously transmitted from each station toward the other through a communication channel having a characteristic physical property capable of modifying the signals in a non-deterministic way, such as causing a phase shift. Each signal is 'reflected' by the opposite station back toward its station of origin. The effect of the communication channel is &#x201c;measured&#x201d; by comparing original and reflected signals. Measured differences are quantized and expressed as numbers.

Growing community of inventors

Tyngsborough, MA, United States of America

Christophe F Bas