Steps towards improving the security of chaotic encryption.
We present a method in which a chaotic signal is used to mask a message securely. It depends on separating the two tasks of synchronizing the chaotic oscillators and encrypting the message. A sporadic drive together with a function f of the ciphertext and response system variables is used to make extraction difficult. We give a choice of f that makes the method similar to a one-time pad, with pseudorandom numbers provided by the chaos.
Fraser
Blair
B
Department of Applied Mathematics, University of Western Ontario, London, Ontario, Canada N6A 5B7. bfraser@julian.uwo.ca
Yu
Pei
P
Lookman
Turab
T