计算机科学 ›› 2021, Vol. 48 ›› Issue (11): 28-35.doi: 10.11896/jsjkx.210400240
陈先来1,2, 赵晓宇3, 曾工棉3, 安莹1,2
CHEN Xian-lai1,2, ZHAO Xiao-yu3, ZENG Gong-mian3, AN Ying1,2
摘要: 针对目前互联网上虚假信息盛行,患者在互联网上交流时无法保证共享信息真实性的问题,提出了一种基于区块链的患者在线交流模型,患者可以匿名与其他患者共享真实的医疗数据并进行交流。首先,使用患者的数字身份保护隐私,将患者交流所需要的医疗摘要数据上传至区块链,并且公开全部数据以供检索,可以使患者检索到需要的病例而不会定位到具体的患者;其次,为了避免授权人员的恶意上传行为,设定智能合约对数据上传进行多重身份认证,医生和患者相互制约,保证链上数据全部真实可靠;最后,改进的RAFT共识算法可以快速识别拜占庭节点从而更好地使区块链达成共识。通过实验对模型性能进行评估,结果表明该模型在保证患者隐私的前提下,可以进行医疗数据的共享,满足患者在线交流需求。
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