Netinfo Security ›› 2022, Vol. 22 ›› Issue (10): 108-113.doi: 10.3969/j.issn.1671-1122.2022.10.015

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Research on Smart Speaker Security and Forensics

LIANG Guangjun1,2, XIN Jianfang3(), NI Xueli1,4, MA Zhuo1,4   

  1. 1. Department of Computer Information and Cyber Security, Jiangsu Police Institute, Nanjing 210031, China
    2. National and Local Joint Engineering Laboratory of Radio Frequency Integration and Micro Assembly Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
    3. School of Intelligent Engineering, Nanjing Railway Vocational and Technical College, Nanjing 210031, China
    4. Jiangsu Electronic Data Forensics and Analysis Engineering Research Center, Nanjing 210031, China
  • Received:2022-07-20 Online:2022-10-10 Published:2022-11-15
  • Contact: XIN Jianfang E-mail:xinjfang@163.com

Abstract:

This article first analyzed the composition and principle of smart speakers. On this basis, the privacy and security issues of smart speakers were discussed, focusing on three types of attacks and their defense methods on smart speakers. Then, a smart speaker ecosystem evidence collection framework based on the cloud-net-end was proposed, and a smart speaker evidence collection analysis model was further proposed. This model includes device-side forensics, network forensics and cloud forensics. Finally, the mobile phone and the cloud were used for verification. The analysis results show that the built model is safe and effective, which can accurately obtain the user data in the smart speaker.

Key words: smart speaker, forensics, privacy protection, smart speaker security

CLC Number: