Image encryption based on random scrambling and chaotic logistic map Online publication date: Fri, 10-Aug-2018
by Sudeept Singh Yadav; Yashpal Singh
International Journal of Grid and Utility Computing (IJGUC), Vol. 9, No. 3, 2018
Abstract: To enhance the performance of image encryption technique, it first scrambles the location of the pixels and then applies a chaotic map by using a 32 bit symmetric key that changes the pixel values of the image. The traditional confusion-diffusion algorithms are insecure against known plaintext attacks. To make the plain image unidentifiable, we use the scrambling operation by using a one dimensional vector technique that changes the correlations of all the adjacent pixels. The chaotic map algorithm produces the cipher image by changing the pixel values of the given image. To increase the security level we use the application of keys in the encryption and decryption process. For any large sized image this encryption and decryption process is simple enough and provides high security. The proposed encryption method has been tested on different grey images and showed good results. The security level of image encryption and decryption is further increased.
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