64 citations · 68 across the 5 of their papers we have counts for
5 papers
CellSecInspector: Safeguarding Cellular Networks via Automated Security Analysis on Specifications
Ke Xie, Xingyi Zhao, Min-Yue Chen +7
The complexity, interdependence, and rapid evolution of 3GPP specifications present fundamental challenges for ensuring the security of modern cellular networks. Manual reviews and…
The Untold Secrets of Operational Wi-Fi Calling Services: Vulnerabilities, Attacks, and Countermeasures
Tian Xie, Guan-Hua Tu, Bangjie Yin +5
Since 2016, all of four major U.S. operators have rolled out nationwide Wi-Fi calling services. They are projected to surpass VoLTE (Voice over LTE) and other VoIP services in term…
The Insecurity of Home Digital Voice Assistants -- Amazon Alexa as a Case Study
Xinyu Lei, Guan-Hua Tu, Alex X. Liu +3
Home Digital Voice Assistants (HDVAs) are getting popular in recent years. Users can control smart devices and get living assistance through those HDVAs (e.g., Amazon Alexa, Google…
New Threats to SMS-Assisted Mobile Internet Services from 4G LTE: Lessons Learnt from Distributed Mobile-Initiated Attacks towards Facebook and Other Services
Guan-Hua Tu, Yuanjie Li, Chunyi Peng +4
Mobile Internet is becoming the norm. With more personalized mobile devices in hand, many services choose to offer alternative, usually more convenient, approaches to authenticatin…
iCellular: Define Your Own Cellular Network Access on Commodity Smartphones
Yuanjie Li, Haotian Deng, Chunyi Peng +4
Leveraging multi-carrier access offers a promising approach to boosting access quality in mobile networks. However, our experiments show that the potential benefits are hard to ful…