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    Image Encryption Based on Dynamic Filtering and Bit Cuboid Operations by Xinsheng Li, Zhilong Xie, Jiang Wu, Taiyong Li

    Published 2019-01-01
    “…Specifically, the proposed DFBC consists of four steps: firstly, a 7D Lorenz hyperchaotic system is utilized to generate a pseudorandom sequence; secondly, variable 1D filters are derived from the pseudorandom sequence, and dynamic filtering is conducted on each pixel of an image; thirdly, a diffusion scheme is performed and then the image is transformed to a bit cuboid; and, finally, various types of permutation (rearranging, symmetry, rotation, zigzag, and global bit permutation) are performed on the bit cuboid. …”
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