Cryptographic schemes using chaotic system

Chaos has attracted much attention in the field of cryptography. It describes a system which is sensitive to initial condition. It generates apparently random behaviour but at the same time is completely deterministic. The proposed schemes make use of the chaotic system implemented at the transmitter receiver end using two different cryptographic algorithms. The encryption could be done by adding (mixing) the message signal to the output of the chaotic map and the decryption would be the subtraction of a synchronized chaotic map\´s output from the encoded signal. The encrypted signal would appear to be noise as it has been "mixed" with a chaotic signal.