Abstract:

Blockchain technology has the characteristics of high security and decentralization in data sharing, and it is an effective method to solve the difficulty of sharing electronic medical records of stroke. This article mainly introduced an application scheme to ensure the safe and efficient sharing of stroke electronic medical records--a secp256k1 curve encryption using an elliptic curve digital signature algorithm at the data layer based on the blockchain and an improved BFT-RAFT consensus mechanism used at the consensus layer, and utilizing the advantages of data verification--the self-check ability of a single node and quasi real-time data check between multiple nodes, to provide certain reference for assisting stroke diagnosis, treatment and clinical data sharing.

Key words: Blockchain; Stroke; Electronic medical record; Data sharing

摘要：

区块链技术在数据共享中具有安全性高、去中心化等特点，是解决卒中电子病历共享难点 的有效方法。本文主要基于区块链介绍了一种保证卒中电子病历安全且高效共享的应用方案——在 数据层使用椭圆曲线数字签名算法secp256k1曲线进行加密、在共识层使用改进的BFT-RAFT共识机制， 并利用单个节点自校验性与多个节点间准实时数据校验的优势，为辅助卒中诊疗及临床研究中数据 共享提供一定借鉴价值。

关键词: 区块链; 卒中; 电子病历; 数据共享