Computer Science

Computer Science ›› 2024, Vol. 51 ›› Issue (6A): 240400056-8.doi: 10.11896/jsjkx.240400056

• Information Security • Previous Articles    

Data Security Management Scheme Based on Editable Medical Consortium Chain

TAN Jingqi1, XUE Lingyan1, HUANG Haiping1,2, CHEN Long1,2, LI Yixuan1   

  1. 1 School of Computer Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China
    2 Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks,Nanjing 210023,China
  • Published:2024-06-06
  • About author:TAN Jingqi,born in 2003,undergra-duate.Her main research interests include information security and blockchain.
    HUANG Haiping,born in 1981,Ph.D,professor,Ph.D supervisor,is a member of CCF(No.15253S).His main research interests include information security and data privacy in IoT.
  • Supported by:
    National Natural Science Foundation of China(62072252) and Postgraduate Research & Practice Innovation Program of Jiangsu Province(KYCX210790,KYCX23_1086,CX10284).

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Abstract: Secure management of medical data is crucial for ensuring the security of patient privacy and effectively conducting medical treatments and related research.However,most existing medical data management solutions have the problems of low transparency,inadequate sharing and fail to secure patient privacy.By designing an editable blockchain model with a “main-side” chain structure,a secure and accountable healthcare data management scheme for healthcare consortium chain is proposed.Its main chain stores current information about the patient’s electronic medical record,while the side chain records historical proof of modification,enabling the transparency and traceability of data management.Introducing chameleon hash function,secret sharing and verifiable signature technology,only verified system administrators of healthcare organizations are able to construct the complete trapdoor,which ensures the correctness and security of the medical data modification process.Security analysis and related experiment simulation show that,the proposed scheme performs well in computational overhead and communication load,as well as storage efficiency,which demonstrates its effectiveness and feasibility.

Key words: Data management, Consortium chain, Editable blockchain, Secret sharing, Digital signature

CLC Number: 

  • TP393.08
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