Publikationen

Autor	Schulz, Matthias; Loch, Adrian; Hollick, Matthias
Datum	2016
Art	Conference Proceedings
Abstrakt	After being widely studied in theory, physical layer security schemes are getting closer to enter the consumer market. Still, a thorough practical analysis of their resilience against attacks is missing. In this work, we use software-defined radios to implement such a physical layer security scheme, namely, orthogonal blinding. To this end, we use orthogonal frequency-division multiplexing (OFDM) as a physical layer, similarly to WiFi. In orthogonal blinding, a multi-antenna transmitter overlays the data it transmits with noise in such a way that every node except the intended receiver is disturbed by the noise. Still, our known-plaintext attack can extract the data signal at an eavesdropper by means of an adaptive filter trained using a few known data symbols. Our demonstrator illustrates the iterative training process at the symbol level, thus showing the practicability of the attack.
ISBN	978-1-4503-4270-4
In	Proceedings of the 9th ACM Conference on Security & Privacy in Wireless and Mobile Networks (WiSec 2016), p.201-203
Publisher	ACM
Schlüssel	TUD-CS-2016-14753
Url	https://tubiblio.ulb.tu-darmstadt.de/id/eprint/104112

DEMO: Demonstrating Practical Known-Plaintext Attacks against Physical Layer Security in Wireless MIMO Systems