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Blockchain based searchable encryption for electronic health record sharing

机译：基于区块链的可搜索加密，用于电子健康记录共享

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摘要

Data leakage in electronic health records (EHRs) could result in the compromise of patient privacy (e.g. medical conditions). Generally most data in EHRs remain unchanged once they are uploaded to the system; thus, blockchain can be potentially used to facilitate the sharing of such data. Different participating medical organizations and individuals (e.g. medical practitioners, hospitals, medical labs and insurance companies) can then access EHRs stored on the blockchain with a higher level of confidence. In this paper, a blockchain based searchable encryption scheme for EHRs is proposed. The index for EHRs is constructed through complex logic expressions and stored in the blockchain, so that a data user can utilize the expressions to search the index. As only the index is migrated to the blockchain to facilitate propagation, the data owners have full control over who can see their EHRs data. The use of blockchain technology ensures the integrity, anti-tampering, and traceability of EHR's index. Finally, the performance of the proposed scheme is evaluated from two aspects, namely in terms of the overhead for extracting the document IDs from EHRs and the overhead associated with conducting transactions on smart contract in Ethereum. (C) 2019 Elsevier B.V. All rights reserved.
机译：电子健康记录（EHR）中的数据泄漏可能会损害患者隐私（例如医疗状况）。通常，EHR中的大多数数据一旦上载到系统，便保持不变。因此，区块链可以潜在地用于促进此类数据的共享。然后，不同的参与医疗组织和个人（例如，从业者，医院，医学实验室和保险公司）可以以更高的置信度访问存储在区块链上的EHR。本文提出了一种基于区块链的EHR可搜索加密方案。 EHR的索引是通过复杂的逻辑表达式构建的，并存储在区块链中，以便数据用户可以使用表达式来搜索索引。由于仅将索引迁移到区块链以促进传播，因此数据所有者完全控制谁可以看到其EHR数据。区块链技术的使用可确保EHR索引的完整性，防篡改和可追溯性。最后，从两个方面对所提出方案的性能进行了评估，即从EHR提取文档ID的开销以及与在以太坊中进行智能合约交易相关的开销。 （C）2019 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Future generation computer systems》 |2019年第6期|420-429|共10页
  • 作者

    Chen Lanxiang; Lee Wai-Kong; Chang Chin-Chen; Choo Kim-Kwang Raymond; Zhang Nan;

  • 作者单位

    Fujian Normal Univ, Coll Math & Informat, Fujian Prov Key Lab Network Secur & Cryptol, Fujian Network & Informat Secur Ind Technol Dev B, Fuzhou, Fujian, Peoples R China;

    Univ Tunku Abdul Rahman, Fac Informat & Commun Technol, Kampar 31900, Perak, Malaysia;

    Feng Chia Univ, Dept Informat Engn & Comp Sci, Taichung, Taiwan;

    Univ Texas San Antonio, Dept Informat Syst & Cyber Secur, San Antonio, TX 78249 USA|Univ Texas San Antonio, Dept Elect & Comp Engn, San Antonio, TX 78249 USA;

    Fujian Normal Univ, Coll Math & Informat, Fujian Prov Key Lab Network Secur & Cryptol, Fujian Network & Informat Secur Ind Technol Dev B, Fuzhou, Fujian, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Searchable encryption; Electronic health records; Blockchain; Smart contract; Ethereum;

    机译：可搜索加密;电子病历;区块链;智能合约;以太坊;

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