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    This study introduces a tailored dual polarization encryption scheme (T-DPES) for secure optical data transmission. The novel method enhances security by encoding images into a noisy output, offering robust protection against attacks.

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    Area of Science:

    • Optics and Photonics
    • Information Security
    • Image Processing

    Background:

    • Optical encryption techniques are crucial for secure data transmission.
    • Existing methods face limitations in robustness and security against sophisticated attacks.
    • Polarization encoding offers a promising avenue for advanced optical security.

    Purpose of the Study:

    • To propose a novel tailored dual polarization encryption scheme (T-DPES).
    • To enhance the security and robustness of optical encryption methods.
    • To introduce an optical decryption process incorporating coherence modulation.

    Main Methods:

    • Utilizing Mueller-Stokes's formalism for polarization encoding.
    • Implementing an optical setup with a polarizer and a pixelated polarizer.
    • Employing a random image key and a dynamic pixelated polarizer key.
    • Integrating coherence modulation for optical decryption.

    Main Results:

    • The proposed T-DPES successfully encodes input images into a uniformly distributed noisy output.
    • The encryption scheme utilizes a random image key and a dynamic pixelated polarizer key.
    • Optical decryption is achieved by combining coherence modulation with the T-DPES.
    • Performance evaluation and cryptanalysis demonstrate the scheme's strength and robustness.

    Conclusions:

    • The T-DPES offers a secure and robust solution for optical data encryption.
    • The integration of coherence modulation enhances the decryption process.
    • This technique overcomes limitations of previous optical encryption methods, providing superior security.