Reversible extended secret image sharing with ability to correct errors based on Chinese remainder theorem.

Area of Science:

• Computer Science
• Cryptography
• Information Security

Background:

• Existing reversible extended secret image sharing (RESIS) schemes lack robustness against active attacks on information transmission channels.
• Inability to correctly recover secret images under channel attacks limits the practical application of current RESIS methods.

Purpose of the Study:

• To propose a novel RESIS scheme with integrated error correction capabilities.
• To enhance the security and reliability of secret image sharing against active channel attacks.
• To ensure the lossless recovery of both secret and cover images.

Main Methods:

• Integration of Reed-Solomon codes for detecting and correcting errors caused by modification attacks.
• Utilization of a secret sharing scheme based on the Chinese Remainder Theorem for secure image segmentation and embedding.
• Development of a RESIS scheme that incorporates error detection and correction mechanisms.

Main Results:

• The proposed RESIS scheme demonstrates the ability to detect and correct errors introduced by active attacks on the information channel.
• Experimental results confirm the successful and lossless recovery of both the original secret image and the cover image.
• The scheme effectively resists certain types of active attacks, improving overall security.

Conclusions:

• The developed RESIS scheme with error correction offers enhanced security and reliability compared to existing methods.
• The combination of Reed-Solomon codes and Chinese Remainder Theorem-based secret sharing provides a robust solution for secure image sharing.
• This approach significantly improves the resilience of secret image sharing systems against active channel attacks.