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Image encryption using binary bitplane
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DOI：10.1016/j.sigpro.2014.01.020.png)
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Abstract
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To enhance security of the bitplane decomposition based image encryption methods, this paper introduces a novel image encryption algorithm using a bitplane of a source image as the security key bitplane to encrypt images. Users have the flexibility to choose (1) any existing or newly generated image as the source image; (2) any decomposition method for generating the bitplane; (3) any decomposed bitplane as the security key bitplane; (4) any scrambling method for the bit-level permutation. As an example, this paper also proposes a bit-level scrambling algorithm to change bit positions. Simulations and security analysis are provided to demonstrate an excellent encryption performance of the proposed algorithm. (C)2014 Elsevier B.V. All rights reserved.
Keywords:
Bitplane decomposition
Image encryption
Bit-level permutation
Security analysis
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