计算机科学
访问控制
计算机安全
可验证秘密共享
加密
块链
安全性分析
数据共享
方案(数学)
零知识证明
基于属性的加密
密码学
公钥密码术
医学
数学分析
替代医学
数学
集合(抽象数据类型)
病理
程序设计语言
作者
Hui Wang,Yong Xie,Yining Liu,Xiong Li,Phuntsog Dorje
出处
期刊:IEEE Internet of Things Journal
[Institute of Electrical and Electronics Engineers]
日期:2023-01-01
卷期号:: 1-1
标识
DOI:10.1109/jiot.2023.3309322
摘要
Electronic Health Records (EHRs) based on the Internet of Things (IoT) can provide real-time health data for quick intelligent medical services and give convenience to many data-sharing scenarios. However, EHRs also face various security threats since they are highly private. To the best of our knowledge, no recognized data-sharing work can satisfy the stringent privacy requirements of EHRs. Motivated by this, we propose a blockchain-based personalized access control EHR sharing scheme with data verifiability, which can safeguard the interests of data owners and users simultaneously. Firstly, we take ciphertext-policy attribute-based encryption to achieve personalized access control for data owners. Secondly, we design an interactive zero-knowledge proof protocol between data owners and users, which can provide authenticity verification of EHR for users and prevent EHR away from forgery. In addition, smart contracts and the interplanetary file system are used to reduce the computation and storage costs of patients. Finally, the security analysis shows that the proposed scheme meets the pre-defined security goals. The performance analysis demonstrates that the proposed scheme is efficient, and can be applied to practical electronic medical record sharing scenarios.
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