In this way, the message transmitted is masked by the chaotic signal. When the receiver synchronizes to the transmitter, the message is decoded by a subtraction between the signal sent by transmitter and its copy generated at the receiver by means of the synchronization of chaos mechanism. This works because, whilst the transmitter output contains the chaotic carrier plus the message, the receiver output is made only by a copy of the chaotic carrier without the message.
In this manner, the message transmitted is concealed by the disordered signal. When the receiver aligns with the transmitter, the message is deciphered through a subtraction between the signal sent by the transmitter and its duplicate generated at the receiver via the synchronization of chaos mechanism. This operates because, although the transmitter output includes the chaotic carrier along with the message, the receiver output consists solely of a replica of the chaotic carrier without the message.