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Efficient ring signature for cross-chain data sharing in blockchain-enabled cold-chain logistics system.

Yang Zhang1, Yu Tang2, Chaoyang Li3

  • 1College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, China.

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|October 30, 2025
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Summary

This study introduces a blockchain solution to secure cold-chain logistics data sharing across different systems. It enhances privacy and prevents data silos using a novel transaction ring signing model with multi-chain fusion.

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Area of Science:

  • Computer Science
  • Information Security
  • Supply Chain Management

Background:

  • Traditional cold-chain logistics systems suffer from centralization issues.
  • Blockchain-enabled cold-chain logistics systems (BCCLS) introduce new challenges like data silos and privacy leakage due to distributed ledgers.
  • Secure and private data sharing across different logistics entities remains a critical issue.

Purpose of the Study:

  • To address the data island and privacy leakage problems in BCCLS.
  • To propose a secure cross-chain data sharing mechanism for BCCLS.
  • To enhance the anti-quantum security of blockchain-based cold-chain logistics.

Main Methods:

  • Introduction of a transaction ring signing model combined with a multi-chain fusion (MCF) mechanism.
  • Utilization of relay chain technology for cross-chain transaction platform establishment.
  • Development of a lattice-based ring signature (RS) scheme for enhanced anti-quantum security.

Main Results:

  • The proposed MCF mechanism enables secure cross-chain data sharing among different blockchain ledgers.
  • The lattice-based RS scheme provides anonymity under full key exposure and unforgeability under insider attack.
  • Security proofs confirm the scheme's robustness against quantum attacks.

Conclusions:

  • The transaction ring signing model with MCF offers an efficient and practical solution for secure cross-chain data sharing in BCCLS.
  • The lattice-based RS scheme significantly improves the anti-quantum security of the system.
  • This approach effectively mitigates data island and privacy leakage issues in blockchain-enabled cold-chain logistics.