A chaos-based unequal encryption mechanism in wireless telemedicine with error decryption

  • Authors:

  • Chin-Feng Lin;Cheng-Hsing Chung;Zhi-Lu Chen;Chang-Jin Song;Zhi-Xiang Wang

  • Affiliations:

  • Department of Electrical Engineering, National Taiwan-Ocean University, Keelung, Taiwan ROC;Department of Electrical Engineering, National Taiwan-Ocean University, Keelung, Taiwan ROC;Department of Electrical Engineering, National Taiwan-Ocean University, Keelung, Taiwan ROC;Department of Electrical Engineering, National Taiwan-Ocean University, Keelung, Taiwan ROC;Department of Electrical Engineering, National Taiwan-Ocean University, Keelung, Taiwan ROC

  • Venue:
  • WSEAS TRANSACTIONS on SYSTEMS
  • Year:
  • 2008

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Abstract

In this paper, we have developed a chaos-based unequal encryption mechanism which can be applied in the wireless telemedicine with error decryption. The main idea for using chaos sequence is to increase the unpredictability compared with other kinds of random sequences. An essential feature of this unequal encryption scheme is that a bit stream mapping of 1D chaotic scrambler and a permutation scheme are allocated to the medical information that requires higher level encryption. In addition, a bit stream mapping of 1D chaotic scrambler is provided to messages that can meet high speed encryption. Simulation results show when a correct deciphering parameter is put in, these signals will be completely recovered. As long as there is an input parameter error, for example, with 0.00000001% initial point error, these signals will not be recovered.