System for producing synchronized signals

Details System for producing synchronized signals System for producing synchronized signals

1991-02-19

1993-09-14

Gregory, Bernarr E.

Cryptography

Key management

Having particular key generator

380 46, 364717, 331 78, H03B 2900, G06F 102

Patent

active

052456609

ABSTRACT:
A system for producing two synchronized signals comprises a nonlinear dynamical primary system and a nonlinear dynamical secondary response subsystem. The primary system comprises a nonlinear dynamical drive subsystem for producing at least one drive signal, and a nonlinear dynamical primary response subsystem responsive to said at least one drive signal for producing a primary signal, wherein said primary response subsystem has a complete set of at least one primary sub-Lyapunov exponents, all of said at least one primary sub-Lyapunov exponents being negative. The second response subsystem is responsive to said at least one drive signal for producing a secondary signal in synchronization with said primary signal, said secondary response subsystem being substantially a duplicate of said primary response subsystem, wherein said secondary response subsystem has a complete set of at least one secondary sub-Lyapunov exponents, all of said at least one secondary sub-Lyapunov exponents being negative.

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R. Matthews, "On the Derivation of a `Chaotic` Encryption Algorithm"; Cryptologia, (Jan. 1989; vol. XIII, No. 1; pp. 29-42).

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