Double-random-phase encryption with photon counting for image authentication using only the amplitude of the...

Area of Science:

• Optics and Photonics
• Information Security
• Digital Image Processing

Background:

• Traditional encryption methods can be complex and require significant data.
• Photon counting offers a method for low-light imaging and information processing.
• Double-random-phase encryption is a robust technique for image security.

Purpose of the Study:

• To develop a simplified photon-counting double-random-phase encryption technique.
• To enable image decryption using only the photon-limited amplitude of the encrypted image.
• To investigate amplitude-based and full-phase encryption using the proposed method.

Main Methods:

• Applying photon counting to the amplitude of a double-random-phase encrypted image.
• Generating a sparse, noise-like image from the encrypted amplitude.
• Decrypting the image using the photon-limited amplitude and numerically generated phase keys.
• Utilizing nonlinear correlation algorithms for decrypted image authentication.

Main Results:

• The proposed method simplifies the encryption process by omitting phase information.
• Decryption is achievable with only the photon-limited amplitude and correct encryption keys.
• The technique allows for intensity detection and reduces the amount of recorded information.
• Preliminary computational results demonstrate the feasibility of both amplitude-based and full-phase encryption.

Conclusions:

• A novel photon-counting encryption technique is presented, simplifying security protocols.
• The method effectively encrypts and decrypts images using photon-limited amplitude, enhancing data security.
• This approach offers a promising avenue for secure image transmission and storage, particularly in low-light or information-limited scenarios.