The emergence of the Internet of Things (IoT) has resulted in a significant increase in research on e-health. As the amount of patient data grows, it has become increasingly challenging to protect patients' privacy. Patient data is commonly stored in the cloud, making it difficult for users to control and protect their information. Moreover, the recent rise in security and surveillance breaches in the healthcare industry has highlighted the need for a better approach to data storage and protection. Traditional models that rely on third-party control over patients' healthcare data are no longer reliable, as they have proven vulnerable to security breaches. To address these issues, blockchain technology has emerged as a promising solution. Blockchain-based protocols have the potential to provide a secure and efficient system for e-health applications that does not require trust in third-party intermediaries. The proposed protocol outlined in this paper uses a blockchain-based approach to manage patient data securely and efficiently. Unlike Bitcoin, which is primarily used for financial transactions, the protocol described here is designed specifically for e-health applications. It employs a consensus mechanism that is more suitable for resource constrained IoT devices, thereby reducing network costs and increasing efficiency. The proposed protocol also provides a privacy-preserving access control mechanism that enables patients to have more control over their healthcare data. By leveraging blockchain technology, the protocol ensures that only authorized individuals can access the patient's data, which helps prevent data breaches and other security issues. Finally, the security and privacy of the proposed protocol are analysed to ensure that it meets the necessary standards for data protection.

翻译：物联网（IoT）的出现推动了电子健康研究的显著增长。随着患者数据量的增加，保护患者隐私变得日益困难。患者数据通常存储在云端，导致用户难以控制与保护自身信息。此外，近年来医疗行业安全与监控漏洞的激增凸显了改进数据存储与保护方法的必要性。依赖第三方控制患者医疗数据的传统模型已不再可靠，因其已被证明易受安全漏洞攻击。为解决这些问题，区块链技术成为一种有前景的方案。基于区块链的协议无需信任第三方中介，有望为电子健康应用提供安全高效的系统。本文提出的协议采用基于区块链的方法安全高效地管理患者数据。与主要用于金融交易的比特币不同，此处描述的协议专为电子健康应用设计。它采用更适合资源受限物联网设备的共识机制，从而降低网络成本并提升效率。该协议还提供隐私保护型访问控制机制，使患者能更好地掌控自己的医疗数据。通过利用区块链技术，协议确保仅授权人员可访问患者数据，有助于防止数据泄露及其他安全问题。最后，对协议的安全性及隐私性进行分析，以确保其符合必要的数据保护标准。