无线体域网隐私保护机制研究综述

Review of privacy protection mechanisms in wireless body area network

无线体域网(WBAN)是由若干可穿戴或可植入设备及其传输节点、处理节点组成的网络结构,是当前医疗物联网重要应用方向之一。网络中的设备收集用户生理数据,通过无线技术将其发送到远端的医疗服务器,然后医疗服务提供商则通过网络访问服务器,从而为佩戴者提供服务。然而,鉴于无线网络的开放性和移动性,若WBAN中的信息被窃取、伪造或在信道中受到攻击,轻则泄露佩戴者隐私,重则危害用户的人身安全。对WBAN中隐私保护机制相关技术研究进行综述,在分析该网数据传输特点的基础上,总结了基于认证、加密和生物信号的隐私保护机制,并比较了它们的优缺点,从而为在WBAN应用中提高防范意识、改进防范技术提供参考。

As a network structure composed of several wearable or implantable devices as well as their transmission nodes and processing nodes,Wireless Body Area Network(WBAN)is one of the important application directions of the medical Internet of Things(IoT).Devices in the network collect physiological data from users and send it to the remote medical servers by the wireless technology.Then,the health-care provider accesses the server through the network,so as to provide services to the wearers.However,due to the openness and mobility of the wireless network,if the information in the WBAN is stolen,forged or attacked in the channel,the wearers’privacy will be leaked,even the personal security of the users will be endangered.The research on privacy protection mechanisms in WBAN was reviewed,and on the basis of analyzing the data transmission characteristics of the network,the privacy protection mechanisms based on authentication,encryption and biological signals were summarized,and the advantages and disadvantages of these mechanisms were compared,so as to provide a reference to the enhancement of prevention awareness and the improvement of prevention technology in WBAN applications.