Research Article
The Data Exchange Protocol over Multi-chain Blockchain Using Zero-Knowledge Proof
@INPROCEEDINGS{10.1007/978-3-031-28990-3_2, author={AoXuan Li and Gabriele D’Angelo and Su-Kit Tang}, title={The Data Exchange Protocol over Multi-chain Blockchain Using Zero-Knowledge Proof}, proceedings={Edge Computing and IoT: Systems, Management and Security. Third EAI International Conference, ICECI 2022, Virtual Event, December 13-14, 2022, Proceedings}, proceedings_a={ICECI}, year={2023}, month={3}, keywords={Zero-knowledge proof Multichain Blockchain Cyber-physical system}, doi={10.1007/978-3-031-28990-3_2} }- AoXuan Li
Gabriele D’Angelo
Su-Kit Tang
Year: 2023
The Data Exchange Protocol over Multi-chain Blockchain Using Zero-Knowledge Proof
ICECI
Springer
DOI: 10.1007/978-3-031-28990-3_2
Abstract
The implementation of blockchain technology is becoming popular among cyber-physical systems. However, the current solutions suffer from scalability and privacy issues. In this position paper, we leverage zero-knowledge proof and multichain technology to propose an efficient system for data transferring across different components. Each component may maintain a private chain storing its data, and the system acts as a relayer between different chains, in which multiple private chains are efficient for appending new data. Only encrypted data is transferred from a source chain to a destination chain. The relayer handles data transferring in two phases: send and receive, and the relayer keeps a Merkle tree of all sent data. In fact, it only transfers the data if the receiver can submit a valid zero-knowledge proof that proves the ownership of the data. The zero-knowledge proof discloses nothing but the statement is true; therefore it protects anonymity for the data owners. This system is secure and satisfies relevant properties such as ledger indistinguishability, transaction non-malleability, and matchability.
