Image hybrid encrypting method based on hyperchaotic system
A technology of image mixing and encryption methods, which is applied in image data processing, image data processing, instruments, etc., and can solve problems such as poor security, complicated operation process, and inconvenient use
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[0049] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0050] Due to the low dimensionality of the digital image encryption algorithm of the chaotic system, there are problems such as low security and small key space. In order to improve the security of confidential image transmission, an image hybrid encryption scheme is proposed based on hyperchaotic sequences. Both position scrambling and pixel replacement are added to each iteration, so that the encrypted data stream is correlated with plaintext information everywhere, which makes up for the shortcomings and shortcomings of traditional algorithms in application. Simulation results show that the image encryption algorithm has the advantages of large key space, good c...
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