Cross-chain data sharing scheme based on conditional proxy re-encryption

Xue Qingshui
Sun Chenxi
Ma Haifeng
Tan Chenglong
Zhang Tianhao
School of Computer Science & Information Engineering, Shanghai Institute of Technology, Shanghai 201418, China

Abstract

At present, most blockchain belongs to heterogeneous chain, and the problem of information island is serious. Therefore, how to break the closed state of vertical development of blockchain and realize inter-chain interconnection has been a research hotspot of blockchain. Aiming at the problems of difficult data sharing, poor interoperability and high storage pressure between alliance chains, this paper proposed a cross-chain data sharing scheme based on conditional proxy re-encryption. It selected high credit nodes from each alliance chain to act as notary and form a notary chain as the media of cross-chain sharing, introduced interplanetary file system to realize hybrid storage and reduce storage pressure, selected randomly a notary as agent who performed the conditional proxy re-encryption operation to realize the state transition of the shared ciphertext between chains, regulated the behavior of notary and improved the enthusiasm of each chain node to participate in data sharing through credit constraint and incentive strategy. Theoretical analysis and experimental results show that the proposed scheme is more secure and reliable in cross-chain data sharing, has higher cross-chain interaction efficiency and lower storage overhead.

Foundation Support

国家自然科学基金资助项目(61672350,61170227)
教育部基金资助项目(39120K178038,14YJA880033)
国家社会科学基金资助项目(16BGL003)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.09.0478
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 5
Section: Technology of Blockchain
Pages: 1324-1329
Serial Number: 1001-3695(2023)05-006-1324-06

Publish History

[2022-11-24] Accepted Paper
[2023-05-05] Printed Article

Cite This Article

薛庆水, 孙晨曦, 马海峰, 等. 基于条件代理重加密的跨链数据共享方案 [J]. 计算机应用研究, 2023, 40 (5): 1324-1329. (Xue Qingshui, Sun Chenxi, Ma Haifeng, et al. Cross-chain data sharing scheme based on conditional proxy re-encryption [J]. Application Research of Computers, 2023, 40 (5): 1324-1329. )

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  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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