In this paper, we have developed a two-dimensional (2D) chaos-based encryption scheme that can be applied to signals with transmission bit errors in clinical electroencephalography (EEG) and mobile telemedicine. As opposed to one-dimensional (1D) chaos-based encryption, the proposed 2D schemes uses the concept of parallel processing to increase the encryption speed. An essential feature of the proposed scheme is that signals mapping of a 2D chaotic scrambler and a permutation scheme are used to obtain clinical EEG information that requires high-level encryption. Simulation results show that when the correct deciphering parameters are inputted, EEG signals with a transmission bit error rate (BER) of 10-7 are completely recovered. However, these signals can not be recovered if there is an error in the input parameters, for example, an initial point error of 0.00000001%.
Lin, Chin-Feng and Wang, Boa-Shun
"A 2D CHAOS-BASED VISUAL ENCRYPTION SCHEME FOR CLINICAL EEG SIGNALS,"
Journal of Marine Science and Technology: Vol. 19:
6, Article 11.
Available at: https://jmstt.ntou.edu.tw/journal/vol19/iss6/11