SCAC-MAT: Stream cipher algorithm with Ikeda Map trajectories

Stream ciphers are used widely to encrypt continuous data streams such as WiFi or cellphone signals. In order to “mask” data, they need special bit stream generators that generate random sequences. The resulting sequences would determine the algorithms' security, if they were random and hard to be predicted, then the algorithm would be secure, on the contrary, if they contained repeated pattern or were easily predicted, then the algorithm would not be secure. Chaotic Maps functions are one way of achieving good random numbers as their chaotic behavior are extremely sensitive to initial parameter modifications, making it impossible to predict future sequence without knowing the correct initial parameters. In this paper, we presented our stream cipher algorithm, which was called “SCAC-MAT”, which used Ikeda Map trajectories to generate random number sequences. Experiments showed us characteristics of strong cipher that SCAC-MAT had, although further studies might be needed to study one potential problem.