Patent ID: 6363153
Filing Date: 2002-03-26
Classification: H04L

Abstract:
A method for secure digital chaotic communication, said communication method comprising:a) a method of encoding information, said encoding method comprising: obtaining a message bit stream; applying a series of intermittent controls to a first chaotic system to cause it to generate the message bit stream; creating a control/no control bit stream that is based on the application of the intermittent controls; and prepending a synchronization bit stream to the control/no control bit stream, to create a transmission bit stream from which the dynamics of the first chaotic system cannot be reconstructed; b) transmitting the transmission bit stream; c) a method of decoding information, said decoding method comprising: obtaining the transmission bit stream; extracting the synchronization bit stream from the transmission bit stream and applying the synchronization bit stream to a second chaotic system to cause it to synchronize with the first chaotic system; extracting the control/no control bit stream from the transmission bit stream; and applying intermittent controls, as indicated by the control/no control bit stream, to the second chaotic system causing it to generate the message bit stream.