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Image encryption and authentication scheme based on computational ghost imaging and lifting wavelet transform
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AI
DOI：10.1016/j.optlaseng.2024.108560.png)
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摘要
En 中文
In modern communication, images hold significant importance, yet they are vulnerable to attacks during transmission. To guarantee the safety of image transmission and track the source of the image, an image encryption and authentication method is put forward with computational ghost imaging and lifting wavelet transform. The encryption of the plaintext image is accomplished by the Knuth-Durstenfeld shuffling algorithm and a bit-level diffusion operation. The authentication image is encoded as a real-valued sequence by the computational ghost imaging system. To reduce the burden of secret key management, the random binary speckle pattern controlled by the chaotic map is designed. With the aid of the lifting wavelet transform, a series of measurement values obtained by encrypting the authentication image are embedded into the encrypted plaintext image. The recipient confirms the existence of the authentication image to validate the source of the plaintext image after decrypting the ciphertext image. Experimental results show that the proposed method performs outstandingly in image encryption while simultaneously authenticating the source of the image.
Keyword:
Image encryption
Image authentication
Computational ghost imaging
Lifting wavelet transform
期刊
IF:
3.7
论文数:
7.2K
被引数:
1.7W
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SIGNAL PROCESSING
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SIGNAL PROCESSINGIF3.6
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