2020
Short-Range Acoustic Communication
How can ordinary smartphones be used to securely exchange data with nearby devices? I designed a wireless physical layer that achieves message authentication using the acoustic interface, which is commonly available on smartphones and IoT devices. My open-source prototype implementation demonstrates device pairing with off-the-shelf smartphones and runs from user space without requiring firmware or hardware modifications.
🏆 This project started with my Master’s thesis, which has received two awards: The KuVS award 2020 (nationwide award for the best Master’s thesis on communication systems in Germany) and the Datenlotsen award 2020 (one of the best three STEM Master’s theses at TU Darmstadt).