Thema der Dissertation:
Wireless Channel Based Security Protocols for IoT Devices Thema der Disputation:
Proximity-aware Mutual Password Agreement Protocol for Wi-Fi Devices using Physical Layer Security
Wireless Channel Based Security Protocols for IoT Devices Thema der Disputation:
Proximity-aware Mutual Password Agreement Protocol for Wi-Fi Devices using Physical Layer Security
Abstract: The growing adoption of Wi-Fi-connected IoT devices, such as smart TVs and home monitoring systems, presents security challenges due to their limited computational resources. While WPA3 enhances Wi-Fi security, its reliance on public-key cryptography (PKC) raises concerns about post-quantum resilience, and its Diffie-Hellman (DH) key exchange requires large key sizes (≥3072 bits for 128-bit security), which can be impractical for resource-constrained devices. To address this, we propose ComPass, a proximity-aware password agreement protocol that leverages wireless channel phase randomness to establish shared secrets without user-generated passwords. ComPass generates high-entropy keys (128, 192, or 256 bits) with minimal overhead, making it efficient for Wi-Fi networks with heterogeneous device capabilities. This talk will cover ComPass’s design, implementation on OpenWrt devices, integration with WPA2/3, and security evaluation, demonstrating its feasibility in mitigating password-based vulnerabilities in IoT ecosystems.
Zeit & Ort
11.04.2025 | 16:00
Seminarraum 006
(Fachbereich Mathematik und Informatik, Takustr. 9, 14195 Berlin)