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View article: Sign-to-911: Emergency Call Service for Sign Language Users with Assistive AR Glasses
Sign-to-911: Emergency Call Service for Sign Language Users with Assistive AR Glasses Open
Sign-to-911 offers a compact mobile system solution to fast and runtime American Sign Language (ASL) and English translations. It is designated as 911 call services for ASL users with hearing disabilities upon emergencies. It enables bidir…
View article: Breaking Cellular IoT with Forged Data-plane Signaling: Attacks and Countermeasure
Breaking Cellular IoT with Forged Data-plane Signaling: Attacks and Countermeasure Open
We devise new attacks exploiting the unprotected data-plane signaling in cellular IoT networks (a.k.a. both NB-IoT and Cat-M). We show that, despite the deployed security mechanisms on both control-plane signaling and data-plane packet for…
View article: Data-plane signaling in cellular IoT
Data-plane signaling in cellular IoT Open
In this paper, we devise new attacks exploiting the unprotected data-plane signaling in cellular IoT networks (aka both NB-IoT and Cat-M). We show that, despite the deployed security mechanisms on both control-plane signaling and data-plan…
View article: SecureSIM
SecureSIM Open
The SIM/eSIM card stores critical information for a mobile user to access the 4G/5G network. In this work, we uncover three vulnerabilities of the current SIM practice. We show that the PIN-based access control may expose the in-SIM data t…
View article: Experience
Experience Open
This paper reports our five-year lessons of developing and using MobileInsight, an open-source community tool to enable software-defined full-stack, runtime mobile network analytics inside our phones. We present how MobileInsight evolves f…