计算机科学

计算机科学 ›› 2021, Vol. 48 ›› Issue (9): 330-336.doi: 10.11896/jsjkx.200600139

• 信息安全 • 上一篇    下一篇

基于红黑树的共享电子病历数据完整性验证方案

周艺华1,2,3, 贾玉欣1,2,3, 贾立圆1,2,3, 方嘉博1,2,3, 侍伟敏1,2   

  1. 1 北京工业大学信息学部 北京100124
    2 可信计算北京市重点实验室 北京100124
    3 北京工业大学区块链研究中心 北京100124
  • 收稿日期:2020-06-23 修回日期:2020-11-14 出版日期:2021-09-15 发布日期:2021-09-10
  • 通讯作者: 贾玉欣(l002363595@qq.com)
  • 作者简介:zhouyh@bjut.edu.cn
  • 基金资助:
    国家自然科学基金(61572053);北京市自然科学基金(4182006)

Data Integrity Verification Scheme of Shared EMR Based on Red Black Tree

ZHOU Yi-hua1,2,3, JIA Yu-xin1,2,3, JIA Li-yuan1,2,3, FANG Jia-bo1,2,3, SHI Wei-min1,2   

  1. 1 Information Department,Beijing University of Technology,Beijing 100124,China
    2 Beijing Key Laboratory of Trusted Computing,Beijing 100124,China
    3 Blockchain Research Center,Beijing University of Technology,Beijing 100124,China
  • Received:2020-06-23 Revised:2020-11-14 Online:2021-09-15 Published:2021-09-10
  • About author:ZHOU Yi-hua,born in 1969,Ph.D,associate professor.His main research in-terests include cryptography,blockchain theory and technology,privacy protection technology and the interdisciplinary of information security and other disciplines.
    JIA Yu-xin,born in 1996,postgraduate.Her main research interests include information security,the data integrity verification problem of the combination of blockchain and cloud storage.
  • Supported by:
    National Natural Science Foundation of China(61572053) and Beijing Natural Science Foundation(4182006)

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摘要： 为了解决共享电子病历的隐私性及数据完整性问题,在平行区块链架构的基础上,文中提出了一种基于红黑树的共享电子病历数据完整性验证方案。首先,医患完整性验证信息以不同的属性基加密的方式分别存储在患者链和医生链上,而医患数据具体信息存储在云服务提供商CSP的链下服务器上;其次,构造基于红黑树的数据完整性验证方案及动态数据更新方案。安全性分析表明,所提方案不但具有公开可验证性,能有效抵抗云服务器的伪造攻击,而且能保障用户及患者信息的隐私性,具有较高的完整性验证效率及数据更新效率。

关键词: 共享电子病历, 红黑树, 区块链, 完整性验证

Abstract: In order to solve the privacy and data integrity problems of shared electronic medical records,this paper proposes a red-black tree-based shared electronic medical records data integrity verification scheme based on the parallel blockchain architecture.First,the doctor-patient integrity verification information is stored on the patient chain and the doctor chain with different attri-bute-based encryption,and the doctor-patient data specific information is stored on the CSP off-chain server.Then,the red-black tree-based data integrity verification scheme and dynamic data update scheme are constructed.Security analysis shows that the proposed scheme not only has public verifiability,can effectively resist the cloud server forgery attack,but also can protect the privacy of user and patient information,with high efficiency of integrity verification and data update.

Key words: Block chain, Integrity verification, Red black tree, Shared EMR

中图分类号: 

  • TP391
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