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MultiAuth: Enable Multi-User Authentication with Single Commodity WiFi Device

Published: 26 July 2021 Publication History

Abstract

With the increasing integration of humans and the cyber world, user authentication becomes critical to support various emerging application scenarios requiring security guarantees. Existing works utilize Channel State Information (CSI) of WiFi signals to capture single human activities for non-intrusive and device-free user authentication, but multi-user authentication remains a challenging task. In this paper, we present a multi-user authentication system, MultiAuth, which can authenticate multiple users with a single commodity WiFi device. The key idea is to profile multipath components of WiFi signals induced by multiple users, and construct individual CSI from the multipath components to solely characterize each user for user authentication. Specifically, we propose a MUltipath Time-of-Arrival measurement algorithm (MUTA) to profile multipath components of WiFi signals in high resolution. Then, after aggregating and separating the multipath components related to users, MultiAuth constructs individual CSI based on the multipath components to solely characterize each user. To identify users, MultiAuth further extracts user behavior profiles based on the individual CSI of each user through time-frequency analysis, and leverages a dual-task neural network for robust user authentication. Extensive experiments involving 3 simultaneously present users demonstrate that MultiAuth is accurate and reliable for multi-user authentication with 87.6% average accuracy and 8.8% average false accept rate.

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  • (2025)A Survey on WiFi-based Human Identification: Scenarios, Challenges, and Current SolutionsACM Transactions on Sensor Networks10.1145/370832321:1(1-32)Online publication date: 27-Jan-2025
  • (2024)Multi-WiIR: Multi-User Identity Legitimacy Authentication Based on WiFi DeviceFuture Internet10.3390/fi1604012716:4(127)Online publication date: 8-Apr-2024
  • (2024)MetaFormerProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36435508:1(1-27)Online publication date: 6-Mar-2024
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cover image ACM Conferences
MobiHoc '21: Proceedings of the Twenty-second International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile Computing
July 2021
286 pages
ISBN:9781450385589
DOI:10.1145/3466772
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 26 July 2021

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Author Tags

  1. WiFi signals
  2. individual CSI construction
  3. multi-user authentication
  4. multipath profiling

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MobiHoc '21 Paper Acceptance Rate 28 of 139 submissions, 20%;
Overall Acceptance Rate 296 of 1,843 submissions, 16%

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Cited By

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  • (2025)A Survey on WiFi-based Human Identification: Scenarios, Challenges, and Current SolutionsACM Transactions on Sensor Networks10.1145/370832321:1(1-32)Online publication date: 27-Jan-2025
  • (2024)Multi-WiIR: Multi-User Identity Legitimacy Authentication Based on WiFi DeviceFuture Internet10.3390/fi1604012716:4(127)Online publication date: 8-Apr-2024
  • (2024)MetaFormerProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36435508:1(1-27)Online publication date: 6-Mar-2024
  • (2024)TADAR: Thermal Array-based Detection and Ranging for Privacy-Preserving Human SensingProceedings of the Twenty-fifth International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile Computing10.1145/3641512.3686357(11-20)Online publication date: 14-Oct-2024
  • (2024)An Imperceptible Eavesdropping Attack on WiFi Sensing SystemsIEEE/ACM Transactions on Networking10.1109/TNET.2024.340383932:5(4009-4024)Online publication date: Oct-2024
  • (2024)Rodar: Robust Gesture Recognition Based on mmWave Radar Under Human Activity InterferenceIEEE Transactions on Mobile Computing10.1109/TMC.2024.340235623:12(11735-11749)Online publication date: Dec-2024
  • (2024)Device-Free Human Tracking and Gait Recognition Based on the Smart SpeakerIEEE Transactions on Mobile Computing10.1109/TMC.2024.337964723:11(10610-10627)Online publication date: Nov-2024
  • (2024)Guessing on Dominant Paths: Understanding the Limitation of Wireless Authentication Using Channel State Information2024 IEEE Symposium on Security and Privacy (SP)10.1109/SP54263.2024.00042(2740-2758)Online publication date: 19-May-2024
  • (2024)Simultaneous Authentication of Multiple Users Using a Single mmWave RadarIEEE Internet of Things Journal10.1109/JIOT.2024.335854811:10(17797-17811)Online publication date: 15-May-2024
  • (2024)OpenAuth: Human Body-Based User Authentication Using mmWave Signals in Open-World Scenarios2024 IEEE 44th International Conference on Distributed Computing Systems (ICDCS)10.1109/ICDCS60910.2024.00125(1330-1341)Online publication date: 23-Jul-2024
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