A Chaos Based Unequal Encryption Mechanism in Mobile Medicine System

In this paper, we propose a chaos base unequal encryption mechanism for which can apply in mobile medicine system. A main idea for using chaos sequence is to increase the un- predication compared with other kind of random sequences. In addition, an essential feature of this unequal encryption scheme is that a bit stream mapping of ID chaotic scrambler and a permutation scheme are allocated to the medical information that requires higher level encryption. In contrast, a bit stream mapping of ID chaotic scrambler are granted to messages that can tolerate low level encryption but meet high speed encryption. Simulation results show when correct deciphering parameters are put in, the signal will be completely recovered. As long as there is an input parameter error, for example, with 0.00000001% initial point error, it could make chaotic array, and the encrypted signals will not be recovered back.