Keep Private Networks Private II: Wideband Secret Key Generation on a Real 5G NR Testbed
Sachinkumar B. Mallikarjun, Christoph Lipps, Marvin Reski, Sneha Bhattacharjee, Andreas Weinand, Hans D. Schotten
TL;DR
This paper explores the feasibility of secret key generation using 5G NR SRS and CSIRS measurements, extending prior wireless channel reciprocity work to the latest 5G technology.
Contribution
It demonstrates for the first time that 5G NR signals can be used for secret key generation, showing potential for enhanced privacy in 5G networks.
Findings
First demonstration of SKG on 5G NR SRS and CSIRS signals
Shows 5G channels can be used for secret key generation
Extends wireless SKG techniques to new 5G standards
Abstract
Secret key generation (SKG) from wireless channel reciprocity has been demonstrated on WiFi, LTE, and LoRaWAN, but has never been demonstrated on 5G New Radio (NR) Sounding Reference Signal (SRS) and CSI Reference Signal (CSIRS) measurements.
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