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Multiuser medical image encryption algorithm using phase-only CGH in the gyrator domain
Summary
This study introduces a novel multiuser medical image encryption algorithm using polar decomposition and computer-generated holograms (CGH) for enhanced security. The method demonstrates robustness against attacks and offers a large keyspace for secure medical data transmission.
Area of Science:
- Medical Imaging
- Cryptography
- Computer Science
Background:
- Secure transmission of sensitive medical data is crucial.
- Existing encryption methods may lack multiuser capabilities or robust security features.
- The need for advanced cryptographic techniques in healthcare is growing.
Purpose of the Study:
- To propose a novel multiuser medical image encryption algorithm.
- To enhance security and data integrity for medical images.
- To leverage polar decomposition and computer-generated holograms (CGH) for improved encryption.
Main Methods:
- Utilizing polar decomposition for multiuser features.
- Implementing phase-only computer-generated holograms (CGH) in the gyrator domain.
- Validating security with statistical metrics (information entropy, MSE, correlation, histogram).
Main Results:
- The algorithm provides multiuser capabilities and enhanced security.
- Phase-only CGH offers compact information storage and anti-counterfeiting.
- Statistical analysis confirms robustness against plaintext, iterative, and contamination attacks.
- The method possesses a large keyspace, resisting real-time computational breaches.
Conclusions:
- The proposed multiuser medical image encryption algorithm is secure and robust.
- The integration of polar decomposition and CGH significantly improves cryptographic security.
- This method is suitable for secure medical image storage and transmission.
