Optical asymmetric double-image encryption and authentication in an interference-based scheme using sparse representation. Optica Applicata?
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An improved optical asymmetric double-image encryption and authentication scheme based on interference and sparse representation is proposed . The scheme utilizes interference and sparse representation techniques to process the Fresnel spectra of the original images, resulting in two ciphertexts and two pairs of private keys . Each original image is associated with its corresponding private keys, and the decrypted image is authenticated by comparing it with the original plaintext using nonlinear correlation . The proposed scheme ensures that the silhouette and any information about the primary images cannot be recognized, even when using a subset of the masks for decryption . Numerical simulations demonstrate the effectiveness and security of the proposed method .
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1 Citations | The paper proposes an improved multiple-image authentication scheme based on optical interference by wavelength multiplexing, which has high security and easy optical implementation. |
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