Netinfo Security ›› 2022, Vol. 22 ›› Issue (11): 17-23.doi: 10.3969/j.issn.1671-1122.2022.11.003

Previous Articles     Next Articles

Data Sharing Scheme Based on Consortium Blockchain and Asmuth-Bloom Secret Sharing Algorithm

ZHANG Xuewang1,2, YAO Yaning1(), LI Zhihong1, ZHANG Hao1   

  1. 1. School of Software Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
    2. College of Microelectronic and Communication Engineering, Chongqing University, Chongqing 400004, China
  • Received:2022-06-18 Online:2022-11-10 Published:2022-11-16
  • Contact: YAO Yaning E-mail:2832644550@qq.com

Abstract:

Aiming at the problems of low efficiency of data sharing scheme and high storage pressure on the consortium blockchain, an attribute-encrypted data-sharing scheme based on Asmuth-Bloom secret sharing algorithm is proposed. The scheme solves the leakage problem of sensitive data through fine-grained access control and improves the efficiency of secret reconstruction in the sharing process. At the same time, it realizes the secure storage of through interstellar file system and effectively reduces the storage pressure on the consortium blockchain network. Meanwhile, it realizes the secure storage of data through the inter planetary file system and effectively reduces the storage pressure of each node on the consortium blockchain network. The analysis and experimental results show that the scheme is correct, safe and efficient.

Key words: consortium blockchain, Asmuth-Bloom, attribute-based encryption, data sharing

CLC Number: