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Hyper-Chaos and Public-Key Cryptography Based Optical Image Encryption Method
CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES, 4 (8): 120-127 (августа 2023)
Аннотация
To secure the transmission and distribution of complex keys in optical transformation-based image encryption networks, an original optical image encryption looks at based on hyper-chaos and public key cryptography can be employed. The original image is then encrypted in the specular domain using hyper-chaotic phase filters and double random phase encoding. To perform asymmetric, imagine encryption, public key encryption systems are used to assign and manage the hyper-chaotic system's setting values, system parameters, including the frequency diffraction system parameters. During the decryption process, the receiver generates hyper-chaotic random phase masks by decrypting the private keys in the public key cryptosystem and optically decrypts the encrypted image. Finally, the generated key stream is used to generate the final encryption image by performing an end-to-end circular modulus diffusion operation on all rows and columns. In addition, the key sequence has been connected to the plain image, which could notify the user to the chosen plaintext and known plaintext attack.
