A design of stream cipher based on multi-chaotic functions

This work presents the design of a stream encryption algorithm using chaotic functions. Various chaotic functions which are highly sensitive and unpredictable to initial conditions have been tested for use as a key stream. A technique employing multi-chaotic function generation for increasing the complexity of the keystream is presented. The result of a statistical test of the keystream has been proved. Thus, this encryption technique can be applied to secure communication, particularly for multimedia transmission.