Department of Applied Informatics, University of SS. Cyril and Methodius, 91701 Trnava, Slovakia.
Institute of Applied Informatics, Automation and Mechatronics, Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, 91724 Trnava, Slovakia.
Sensors (Basel). 2020 Sep 16;20(18):5298. doi: 10.3390/s20185298.
Smart devices along with sensors are gaining in popularity with the promise of making life easier for the owner. As the number of sensors in an Internet of Things (IoT) system grows, a question arises as to whether the transmission between the sensors and the IoT devices is reliable and whether the user receives alerts correctly and in a timely manner. Increased deployment of IoT devices with sensors increases possible safety risks. It is IoT devices that are often misused to create Distributed Denial of Service (DDoS) attacks, which is due to the weak security of IoT devices against misuse. The article looks at the issue from the opposite point of view, when the target of a DDoS attack are IoT devices in a smart home environment. The article examines how IoT devices and the entire smart home will behave if they become victims of a DDoS attack aimed at the smart home from the outside. The question of security was asked in terms of whether a legitimate user can continue to control and receive information from IoT sensors, which is available during normal operation of the smart home. The case study was done both from the point of view of the attack on the central units managing the IoT sensors directly, as well as on the smart-home personal assistant systems, with which the user can control the IoT sensors. The article presents experimental results for individual attacks performed in the case study and demonstrates the resistance of real IoT sensors against DDoS attack. The main novelty of the article is that the implementation of a personal assistant into the smart home environment increases the resistance of the user's communication with the sensors. This study is a pilot testing the selected sensor sample to show behavior of smart home under DDoS attack.
智能设备和传感器越来越受欢迎，它们承诺为用户提供更便捷的生活。随着物联网 (IoT) 系统中传感器数量的增加，人们开始质疑传感器与物联网设备之间的传输是否可靠，以及用户是否能够及时正确地收到警报。随着带有传感器的物联网设备的大量部署，潜在的安全风险也在增加。正是物联网设备经常被滥用以发起分布式拒绝服务 (DDoS) 攻击，这是由于物联网设备对滥用的安全防护较弱所致。本文从相反的角度探讨了这个问题，即当 DDoS 攻击的目标是智能家居环境中的物联网设备时会发生什么。本文研究了如果物联网设备和整个智能家居成为针对智能家居的外部 DDoS 攻击的受害者，它们将如何表现。安全性问题是基于合法用户是否能够继续控制和接收物联网传感器的信息来提出的，这些信息在智能家居的正常运行中是可用的。案例研究从直接攻击管理物联网传感器的中央单元的角度，以及从智能家居个人助理系统的角度进行，用户可以通过这些系统来控制物联网传感器。本文展示了在案例研究中进行的个别攻击的实验结果，并展示了实际物联网传感器对 DDoS 攻击的抵抗能力。本文的主要创新点在于将个人助理引入智能家居环境中可以提高用户与传感器之间通信的抗干扰能力。本研究是对选定传感器样本的初步测试，旨在展示智能家居在 DDoS 攻击下的行为。
