Secure and Efficient Lattice-Based Ring Signcryption Scheme for BCCL

Area of Science:

• Supply Chain Management
• Information Security
• Cryptography

Background:

• Blockchain-based cold chain logistics (BCCL) systems improve data sharing and interoperability but face security vulnerabilities, data loss risks, and quantum-based attacks.
• Existing BCCL frameworks struggle with protecting private information and ensuring secure data exchange across institutions.

Purpose of the Study:

• To introduce a transaction privacy preserving (TPP) model for BCCL systems to enhance security and data exchange.
• To propose a lattice-based ring signcryption (LRSC) scheme resistant to quantum attacks, ensuring signer anonymity and data integrity.

Main Methods:

• Integration of blockchain technology with a ring signcryption scheme to form the TPP model.
• Development of a lattice-based ring signcryption (LRSC) scheme leveraging lattice assumptions for quantum resistance.
• Simultaneous execution of signature and encryption algorithms within the LRSC scheme for improved efficiency.

Main Results:

• The proposed LRSC scheme demonstrates enhanced resistance against quantum attacks.
• Formal security proofs confirm the LRSC scheme's ability to ensure signer confidentiality and unforgeability.
• Experimental results show the LRSC scheme achieves higher efficiency compared to existing methods.

Conclusions:

• The TPP model and LRSC scheme effectively facilitate secure cross-institutional logistics data exchange within BCCL systems.
• The proposed solutions enhance the utilization of logistics information by addressing security vulnerabilities and quantum threats.