A chaotic-cipher-based packet body encryption algorithm for JPEG2000 images |
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| Institution: | 1. Xerox Research Centre of Canada, 2660 Speakman Drive, Mississauga, Ontario, L5K 2L1, Canada;2. Department of Chemical Engineering, McMaster University, Hamilton, Ontario, LS8 4L8, Canada;1. Key Lab of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing Institute of Technology, Beijing, China;2. Department of Optical and Electronic Equipment, Space Engineering University, Beijing, China;1. Faculty of Electrical Engineering, University of Sarajevo, Zmaja od Bosne bb, 71000 Sarajevo, Bosnia and Herzegovina |
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| Abstract: | A chaotic-cipher-based packet body encryption algorithm for JPEG2000 images is proposed in this paper. In order to produce a compliant codestream, a 2-byte block encryption procedure including bit-wise exclusive OR and cyclic rotation operations is investigated. Moreover, a repeatedly encryption process is adopted to eliminate the undesirable marker codes during encryption. The repeatedly encryption process only introduces a negligible computational overhead. Both simulations and analysis show that the proposed algorithm is of high security and simplicity. Therefore, these good properties make the algorithm efficient to process and useful for image applications. |
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| Keywords: | Chaotic cipher JPEG2000 Block encryption |
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