AuthIoT: A Transferable Wireless Authentication Scheme for IoT Devices Without Input Interface
AuthIoT: A Transferable Wireless Authentication Scheme for IoT Devices Without Input Interface
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DOI：
10.1109/jiot.2022.3186646
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发表时间：
2022-11
影响因子：
10.6
通讯作者：
Shichen Zhang;Pedram Kheirkhah Sangdeh;Hossein Pirayesh;Huacheng Zeng;Qiben Yan;K. Zeng
中科院分区：
文献类型：
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作者：
Shichen Zhang;Pedram Kheirkhah Sangdeh;Hossein Pirayesh;Huacheng Zeng;Qiben Yan;K. Zeng
无线物联网（IoT）应用已经渗透到我们社会的各个方面，在智能家居、智能城市和智能医院中变得越来越重要。然而，许多基于WiFi的IoT设备（例如，灯开关、门/窗打开警报传感器和Google Home）由于其物理尺寸、功耗和/或制造成本的限制而不具有诸如键盘或触摸屏的输入接口，使得终端用户认证那些IoT设备以用于无线互联网接入是不方便和繁重的。在本文中，我们介绍了AuthIoT，这是一种基于学习的身份验证方案，适用于没有输入接口的无线物联网设备。AuthIoT的关键组件是用于WiFi接入点（AP）的基于信道状态信息（CSI）的字符分类算法，当最终用户将其握在手中并通过空中写入密码时，该算法可以识别来自IoT设备的密码。AuthIoT有两个显著的特点：1）它可用于跨环境应用，2）它适用于AP配备非线性天线阵列的更现实的场景。我们已经构建了一个AuthIoT原型，并在两个测试平台上评估了其性能：1）带有三个线性天线的Intel 5300 WiFi卡和2）带有四个非线性（方形）天线的USRP N310。实验结果表明，AuthIoT在两个测试平台上分别达到了84%和83%的识别准确率。
Wireless Internet of Things (IoT) applications have penetrated every aspect of our society and become increasingly important in smart homes, smart cities, and smart hospitals. However, many WiFi-based IoT devices (e.g., light switches, door/window open alert sensors, and Google Home) do not have input interfaces such as keypad or touchscreen due to their limits in physical size, power consumption, and/or manufacturing cost, making it inconvenient and onerous for end users to authenticate those IoT devices for wireless Internet access. In this article, we present AuthIoT, a learning-based authentication scheme for wireless IoT devices without input interfaces. The key component of AuthIoT is a channel state information (CSI)-based character classification algorithm for a WiFi access point (AP), which recognizes the passcode from an IoT device when an end user holds it in hand and writes the passcode over the air. AuthIoT has two salient features: 1) it is transferable for cross-environment applications and 2) it works in more realistic scenarios where AP is equipped with nonlinear antenna array. We have built a prototype of AuthIoT and evaluated its performance on two testbeds: 1) Intel 5300 WiFi card with three linear antennas and 2) USRP N310 with four nonlinear (square-shaped) antennas. The experimental results show that AuthIoT achieves 84% and 83% recognition accuracy on the two testbeds.