Optical information authentication using compressed double-random-phase-encoded images and quick-response codes.

Area of Science:

• Optics and Photonics
• Information Security
• Digital Imaging

Background:

• Optical information authentication is crucial for data security.
• Existing methods like Double Random Phase Encoding (DRPE) have limitations.
• Need for robust and efficient optical security systems.

Purpose of the Study:

• To develop a new optical information authentication system.
• To integrate compressed double-random-phase-encoded images with QR codes.
• To enhance security and data sparsity in optical encryption.

Main Methods:

• A simplified Double Random Phase Encoding (DRPE) scheme without interferometric setup.
• Optical encoding of an input image attached with a QR code.
• Iterative phase retrieval technique using QR code to generate a compressed double-random-phase-encoded image from a single intensity pattern.

Main Results:

• The proposed system utilizes optical lightwave parameters as keys for decryption and QR codes for verification.
• Comparison with Fresnel domain information authentication and DRPE with phase retrieval algorithm.
• Simulation results demonstrate the effectiveness of QR codes in improving security and data sparsity.

Conclusions:

• The developed system offers a secure and efficient approach to optical information authentication.
• QR codes significantly enhance the security and data sparsity of optical encryption and authentication systems.
• This technique presents a promising advancement in optical security applications.