Publications

2024

ToN’24 Taming the Insecurity of Cellular Emergency Services (9-1-1): From Vulnerabilities to Secure Designs
Min-Yue Chen, Yiwen Hu, Guan-Hua Tu, Chi-Yu Li, Sihan Wang, Jingwen Shi, Tian Xie, Li Xiao, Chunyi Peng, Zhaowei Tan, and Songwu Lu
Accepted to IEEE/ACM Transactions on Networking (Impact Factor: 3.7).

2023

ToN’23 Dissecting Operational Cellular IoT Service Security: Attacks and Defenses
Sihan Wang, Tian Xie, Min-Yue Chen, Guan-Hua Tu, Chi-Yu Li, Xinyu Lei, Po-Yi Chou, Fucheng Hsieh, Yiwen Hu, Li Xiao, and Chunyi Peng
Accepted to IEEE/ACM Transactions on Networking (Impact Factor: 3.7).

CNS’23 When Good Turns Evil: Encrypted 5G/4G Voice Calls Can Leak Your Identities
Jingwen Shi, Tian Xie, Guan-Hua Tu, Chunyi Peng, Chi-Yu Li, Andrew Hou, Sihan Wang and Yiwen Hu, Xinyu Lei, Min-Yue Chen, Li Xiao, and Xiaoming Liu
IEEE Conference on Communications and Network Security (IEEE CNS) 2023, October 2- October 5, 2023, Olando, Florida (Acceptance Rate: 28.5%).

GetMobile’23 Unveiling the Insecurity of Operational Cellular Emergency Services (911): Vulnerabilities, Attacks, and Countermeasures
Yiwen Hu, Min-Yue Chen, Guan-Hua Tu, Chi-Yu Li, Sihan Wang, Jingwen Shi, Tian Xie, Xiao Li, Chunyi Peng, Zhaowei Tan, Songwu Lu
An invited paper to ACM GetMobile: Mobile Computing and Communications, GetMobile Research Highlights.

TMC’23 MPKIX: Towards More Accountable and Secure Internet Application Services via Mobile Networked Systems
Tian Xie†, Sihan Wang†(†: co-primary), Xinyu Lie, Jingwen Shi, Guan-Hua Tu, Chi-Yu Li
IEEE Transactions on Mobile Computing, Volume: 22, Issue: 6, pp. 3489 - 3507, June 1, 2023 (Impact Factor: 7.9).

ToN’23 Insecurity of Operational IMS Call Systems: Vulnerabilities, Attacks, and Countermeasures
Yu-Han Lu, Sandy Hsin-Yu Hsiao, Chi-Yu Li, Yi-Chen Hsieh, Po-Yi Chou, Yao-Yu Li, Tian Xie, Guan-Hua Tu
IEEE/ACM Transactions on Networking, Volume: 31, Issue: 2, pp. 800-815, April, 2023 (Impact Factor: 3.7).


2022

MobiCom’22 Uncovering Insecure Designs of Cellular Emergency Services (911)
Yiwen Hu, Min-Yue Chen, Guan-Hua Tu, Chi-Yu Li, Sihan Wang, Jingwen Shi, Tian Xie, Xiao Li, Chunyi Peng, Zhaowei Tan, Songwu Lu
Proceedings of ACM the 28th Annual International Conference On Mobile Computing And Networking (MobiCom) 2022, October 17- October 21, 2022, Sydney, Australia (Acceptance Rate: 18.1%).
Best Community Paper Award Runner-Up, AT&T Security Award


2021

TMC’21 The Untold Secrets of WiFi-Calling Services: Vulnerabilities, Attacks, and Countermeasures
Tian Xie, Guan-Hua Tu, Bangjie Yin, Chi-Yu Li, Chunyi Peng, Mi Zhang, Hui Liu, Xiaoming Liu
IEEE Transactions on Mobile Computing, Volume: 20, Issue: 11, pp. 3131-3147, Nov. 1 2021 (Impact Factor: 7.9).

TMC’21 How Can IoT Services Pose New Security Threats In Operational Cellular Networks?
Tian Xie, Guan-Hua Tu, Chi-Yu Li, Chunyi Peng
IEEE Transactions on Mobile Computing, vol. 20, no. 8, pp. 2592-2606, 1 Aug. 2021 (Impact Factor: 7.9).

CodeSpy’21 BFastPay: a Routing-free Protocol for Fast Payment in Bitcoin Network
Xinyu Lei, Guan-Hua Tu, Tian Xie, Sihan Wang
Proceedings of the 11th ACM Conference on Data and Application Security and Privacy (CODASPY) 2021, April 26-28, 2021, taking place virtually, pp. 77-87 (Acceptance Rate: 29%).

CodeSpy’21 Security Threats from Bitcoin Wallet Smartphone Applications: Vulnerabilities, Attacks, and Countermeasures
Yiwen Hu, Sihan Wang, Guan-Hua Tu, Li Xiao, Tian Xie, Xinyu Lei, Chi-Yu Li
Proceedings of the 11th ACM Conference on Data and Application Security and Privacy (CODASPY) 2021, April 26-28, 2021, taking place virtually, pp. 89-100 (Acceptance Rate: 29%).

MobiCom’21 Insecurity of Operational Cellular IoT Service: New Vulnerabilities, Attacks, and Countermeasures
Sihan Wang, Guan-Hua Tu, Xinyu Lei, Tian Xie, Chi-Yu Li, Po-Yi Chou, Fucheng Hsieh, Yiwen Hu, Li Xiao, Chunyi Peng
Proceedings of ACM the 27th Annual International Conference On Mobile Computing And Networking (ACM MobiCom) 2021, March 28 - April 1, 2022, New Orleans, United States, pp. 437-450 (Acceptance Rate: 19.9%).


2020

MobiCom’20 Ghost Calls from Operational 4G Call Systems: IMS Vulnerability, Call DoS Attack, and Countermeasure
Yu-Han Lu, Chi-Yu Li, Yao-Yu Li, Sandy Hsin-Yu Hsiao, Tian Xie, Guan-Hua Tu, Wei-Xun Chen
Proceedings of ACM the 26th Annual International Conference On Mobile Computing And Networking (MobiCom) 2020, Sep. 21-25, 2020, London, United Kingdom, pp. 1-14 (Acceptance Rate: 16.15%).

MobiSys’20 SecWIR: Securing Smart Home IoT Communications via Wi-Fi Routers with Embedded Intelligence
Xinyu Lei, Guan-Hua Tu, Chi-Yu Li, Tian Xie, Mi Zhang
Proceedings of the 18th ACM International Conference on Mobile Systems, Applications, and Service (MobiSys) 2020, June 16-19, 2020, Toronto, Canada, pp. 260-272 (Acceptance Rate: 19.4%).

ICDCS’20 An Inter-blockchain Escrow Approach For Fast Bitcoin Payment(Extended Abstract)
Xinyu Lei, Tian Xie, Guan-Hua Tu and Alex X. Liu
IEEE 40th International Conference on Distributed Computing Systems (ICDCS), Singapore, Singapore, 2020, pp. 1201-1202.

CNS’20 Fast and Secure kNN Query Processing in Cloud Computing
Xinyu Lei, Guan-Hua Tu, Alex X. Liu, Tian Xie
2020 IEEE Conference on Communications and Network Security (CNS), Avignon, France, 2020, pp. 1-9.

SSCI’20 Exploring the Insecurity of Google Account Registration Protocol via Model Checking
Tian Xie, Sihan Wang, Guan-Hua Tu, Chi-Yu Li, Xinyu Lei
2019 IEEE Symposium Series on Computational Intelligence (SSCI), Xiamen, China, 2019, pp. 3087-3096.


2018

CNS’18 The Dark Side of Operational Wi-Fi Calling Services
Tian Xie, Guan-Hua Tu, Chi-Yu Li, Chunyi Peng, Jiawei Li, and Mi Zhang
2018 IEEE Conference on Communications and Network Security (CNS), Beijing, China, 2018, pp. 1-9.
Best Paper Award, Google Security Reward

CNS’18 The Insecurity of Home Digital Voice Assistants - Vulnerabilities, Attacks and Countermeasures
Xinyu Lei, Guan-Hua Tu, Alex Liu, Chi-Yu Li, and Tian Xie
2018 IEEE Conference on Communications and Network Security (CNS), Beijing, China, 2018, pp. 1-9.

ICC’18 How Voice Service Threatens Cellular-connected IoT Devices in the Operational 4G LTE Networks
Tian Xie, Chi-Yu Li, Guan-Hua Tu and Jiliang Tang
2018 IEEE International Conference on Communications (ICC), Kansas City, MO, USA, 2018, pp. 1-6.


2017 And Before

NEMS’17 How Voice Service Threatens Cellular-connected IoT Devices in the Operational 4G LTE Networks
Tian Xie, Xiaopeng Bi, Rui Luo, Fan Bin, Zhe Wang, Wen Li
2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), Los Angeles, CA, USA, 2017, pp. 599-602.

TBioCAS’16 A Flexible, Micro-Lens-Coupled LED Stimulator for Optical Neuromodulation
Xiaopeng Bi, Tian Xie, Bin Fan, Wasif Khan, Yue Guo, and Wen Li
IEEE Transactions on Biomedical Circuits and Systems, 10.5 (2016): 972-978 (Impact Factor: 5.1).