Research Article
A Privacy-Preserving and Auditable Scheme for Interfacing Public Blockchain with Consortium Blockchain
@INPROCEEDINGS{10.1007/978-3-031-31420-9_6, author={Zejun Lu and Jiageng Chen}, title={A Privacy-Preserving and Auditable Scheme for Interfacing Public Blockchain with Consortium Blockchain}, proceedings={Blockchain Technology and Emerging Technologies. Second EAI International Conference, BlockTEA 2022, Virtual Event, November 21-22, 2022, Proceedings}, proceedings_a={BLOCKTEA}, year={2023}, month={4}, keywords={Blockchain Cross-chain Consortium Privacy Auditability}, doi={10.1007/978-3-031-31420-9_6} }- Zejun Lu
Jiageng Chen
Year: 2023
A Privacy-Preserving and Auditable Scheme for Interfacing Public Blockchain with Consortium Blockchain
BLOCKTEA
Springer
DOI: 10.1007/978-3-031-31420-9_6
Abstract
With the development of blockchain technology, consortium blockchain is being applied in various scenarios. However, data and related assets are restricted to the closed consortium blockchain environment, and the end-users who do not belong to the consortium are difficult to gain access without extra authentication. Thus, architectures concerning cross-chain interaction appear, while most solutions have only limited functionalities. Moreover, few solutions have considered privacy from multiple perspectives, including the privacy of end-users, consortium members, or the data itself. This paper proposes a privacy-preserving and auditable architecture scheme for interfacing consortium blockchain members with end-users of the public blockchain. Our scheme enables end-users to communicate with the inner consortium in a verifiable, privacy-preserving, and auditable manner. More specifically, we improve the existing cross-chain network architectures to further protect the consortium members’ privacy. Also, the communication and the transactions of the cross-chain interaction are protected and auditable. Concrete protocols are proposed, and security models and corresponding analyses are investigated.
