Efficient Ring Signature for Cross-chain Data Sharing in Blockchain-enabled Cold-chain Logistics System

Abstract

Blockchain-enabled cold-chain logistics system (BCCLS) has well solved the centralized problem in traditional systems. However, along with that different logistics entities establish their own distributed blockchain ledger, which brings new “data island” and privacy leakage problems for BCCLS. In this paper, a transaction ring signing model with a multi-chain fusion mechanism has been introduced first which helps to achieve secure cross-chain data sharing. Meanwhile, a ring signature (RS) scheme is proposed with lattice assumption, which can protect the user privacy and cross-chain transactions. The lattice hard problem improves the anti-quantum security of the transaction ring signing model. Then, the security proof has been executed with random oracle model, and the results show that this RS scheme can get anonymity under full key exposure and unforgeability under insider attack. The efficiency comparison and performance evaluation show the efficiency and practical of the proposed multi-chain fusion model and RS scheme.

Blockchain Interoperability in Data Exchange Logistics Integration

“…Regarding the issue of logistics data integration between private blockchains, several existing solutions employ blockchain interoperability to address it. Zhang et al [4] proposed an efficient ring signature scheme for cross-chain data sharing in blockchain-based cold chain logistics systems, aiming to tackle the "data silo" and privacy leakage challenges. Wang et al [5] addressed problems in traditional supply chain traceability models, such as data falsification, information sharing difficulties, and data opacity.…”

“…Yakubu et al [26] proposed a framework, RiceChain, which is capable of tracking and monitoring all interactions and transactions among all stakeholders in the rice chain ecosystem through smart contracts. Zhang et al [4] proposed a cross-chain data sharing scheme in a blockchain-based cold chain logistics system (ColdChain). It incorporates a transaction ring-signing model with a multi-chain fusion mechanism and a ring signature scheme.…”