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Enabling Efficient Multi-keyword Search Over Fine-Grained Authorized Healthcare Blockchain System

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Web and Big Data (APWeb-WAIM 2020)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 12318))

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Abstract

As a new emerging technology, blockchain is attracting the attention from academic and industry and has been widely exploited to build the large-scale data sharing and management systems, such as healthcare database or bank distributed database system. The health records contain a lot of sensitive information, so putting these health records into blockchain can solve the security and privacy issues while uploading them to an untrustworthy network. In a typical health record management system, there are escalating demands for users including the patients and the doctors to execute multi-keyword search over the huge scale of healthcare records. In the meantime, they can authorize some part of their personal treatments to others according to personalized needs of the patients. In literatures, there is not an existing blockchain solution can satisfy these two requirements at the same time. These issues become prominent since it’s more inconvenient to adjust a blockchain-based system to support efficient multi-keyword search and fine-grained authorization comparing to traditional RDBMS. To overcome the two challenges, we propose a novel multi-keyword searching scheme by establishing a set of Bloom Filters within the health record blockchain system to accelerate the searching process on service provider (SP). Moreover, we reduce the overhead of key derivation by proposing a Healthcare Data Key Derivation Tree (HDKDT) stored locally on the user’s side. Putting our proposed scheme on the medical blockchain can speed up the multi-keyword search [3, 12] processes and reduce the key storage space to certain extent. At the end of this article, we formally prove the security of the proposed scheme and implement a prototype system to evaluate its performance. The experimental results validate our proposed scheme in this paper is a secure and efficient approach for the health record management scenario.

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Acknowledgement

This work is supported by the National Natural Science Foundation of China (No. 62072349, U1811263, 61572378), the major technical innovation project of Hubei Province (No. 2019AAA072), the Science and Technology Project of State Grid Corporation Of China (No. 5700-202072180A-0-0-00), the Teaching Research Project Of Wuhan University (No. 2018JG052), and the Natural Science Foundation Of Hubei Province (No. 2017CBF420).

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Authors and Affiliations

  1. School of Computer Science, Wuhan University, Wuhan, Hubei, China

    Yicheng Ding, Wei Song & Yuan Shen

Authors
  1. Yicheng Ding
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  2. Wei Song
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  3. Yuan Shen
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Corresponding author

Correspondence to Wei Song .

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Editors and Affiliations

  1. Tianjin University, Tianjin, China

    Xin Wang

  2. University of Melbourne, Melbourn, NSW, Australia

    Rui Zhang

  3. Kyung Hee University, Yongin, Korea (Democratic People's Republic of)

    Young-Koo Lee

  4. Nanjing University of Information Science and Technology, Nanjing, China

    Le Sun

  5. Kangwon National University, Chunchon, Korea (Republic of)

    Yang-Sae Moon

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Ding, Y., Song, W., Shen, Y. (2020). Enabling Efficient Multi-keyword Search Over Fine-Grained Authorized Healthcare Blockchain System. In: Wang, X., Zhang, R., Lee, YK., Sun, L., Moon, YS. (eds) Web and Big Data. APWeb-WAIM 2020. Lecture Notes in Computer Science(), vol 12318. Springer, Cham. https://doi.org/10.1007/978-3-030-60290-1_3

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  • DOI: https://doi.org/10.1007/978-3-030-60290-1_3

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-60289-5

  • Online ISBN: 978-3-030-60290-1

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