Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (3): 337-342.DOI: 10.12068/j.issn.1005-3026.2020.03.007

• Information & Control • Previous Articles     Next Articles

Research on Cloud Storage Integrity of Wireless Body Area Network Data Based on Blockchain Technology

GAO Yan-fang, YAO Lan, MA Yan-song, LI Feng-yun   

  1. School of Computer Science & Engineering, Northeastern University, Shenyang 110169, China.
  • Received:2019-03-05 Revised:2019-03-05 Online:2020-03-15 Published:2020-04-10
  • Contact: YAO Lan
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Abstract: Aiming at the security problems in cloud storage of the data in wireless body area network (WBAN for short), an access control framework based on blockchain was designed. The framework controlled user’s access requests by combining blockchain technology with the digital signature. It used blocks to store access requests and digital signatures of the access requests, and utilized the improved Raft algorithm to ensure the consistency of each node’s blockchain. Then, an ordered array combined with Merkle tree was designed to store WBAN data. A Hash table is combined with Merkle tree to store the access requests of the WBAN data. Thirdly, on the basis of access control framework, the storage mode of the WBAN data and the access requests of the WBAN data, and the integrity verification scheme for the WBAN data was proposed. Finally, experiments were carried out on the consistency of blockchain and the data integrity verification scheme. The experimental results showed that the proposed framework enables each user node to control the access request cooperatively, and the proposed scheme supports each user node to verify the integrity of data.

Key words: blockchain, wireless body area network (WBAN), integrity, Merkle tree, digital signature

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