Plaintext related image encryption method based on PUD adaptive decomposition
A technology of plaintext image and encryption method, which is applied to image communication, countermeasures against encryption mechanism, and key distribution. It can solve the problems of low security, being cracked, and difficult to further improve the security and reliability of the algorithm, and achieve strong robustness. performance, high security and robustness
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[0038] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0039] Such as figure 1 As shown, the plaintext-related image encryption method based on PUD adaptive decomposition described in this embodiment includes the following steps:
[0040] Step 1) generation of pseudo-random number sequence:
[0041] Use the existing random number generator to generate a 512-bit pseudo-random number sequence;
[0042] Step 2) Decomposition of the plaintext image:
[0043] Using the PUD decomposition technology to decompose the original plaintext image, three parts are obtained, which are one two-dimensional component, two one-dimensional components and the average gray value of the image;
[0044] Step 3) the operation of image encryption:
[0045] For the two-dimensional components obta...
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