Skip Navigation

Barkhausen Institut

Physical Layer Security

How can we improve the security of IoT systems using their unique random physical properties?

Security is one of the key requirements for the future acceptance of IoT networks. Existing security solutions are based on data encryption using secret keys, which require a trustworthy and complex architecture for their distribution.

As an alternative to conventional key distribution, the encryption keys can be generated using the unique physical layer characteristics of the wireless communication. The radio wave propagation between every “pair” (transmitter and receiver) is unique and reciprocal. Its properties cannot be obtained by a third-party eavesdropper at another location. That is, the signal will suffer many reflections between the transmitter and the receiver. The eavesdropper will also observe the signal, but, since the distances are different, he will experience these reflections differently from the receiver.

Hence, the radio channel is suitable as a random secret source of information to generate and exchange a security key.

This concept is one of the possibilities of what is called Physical Layer Security. 

 

Publications

Marco Zoli, André Barreto, Gerhard Fettweis, Investigating the eavesdropper attack in physical layer security wireless key generation: a simulation case study, IEEE Vehicular Technology Conference (VTC-Spring), 2021

@conference{
Zoli_2021_vtcs,
title = "Investigating the eavesdropper attack in physical layer security wireless key generation: a simulation case study",
author = "Marco Zoli, André Barreto, Gerhard Fettweis",
year = "2021",
booktitle = "IEEE Vehicular Technology Conference (VTC-Spring)",
address = "Helsinki, Finland",
number = "April"
}
Download BibTex

Marco Zoli, Miroslav Mitev, André Barreto, Gerhard Fettweis, Estimation of the Secret Key Rate in Wideband Wireless Physical-Layer-Security, International Symposium on Wireless Communication Systems (ISWCS), 2021

@inproceedings{
Zoli_2021_ISWCS,
title = "Estimation of the Secret Key Rate in Wideband Wireless Physical-Layer-Security",
author = "Marco Zoli, Miroslav Mitev, André Barreto, Gerhard Fettweis",
year = "2021",
booktitle = "International Symposium on Wireless Communication Systems (ISWCS)"
}
Download BibTex

Miroslav Mitev, Arsenia Chorti, Elena Belmega, Vincent Poor, Estimation of the Secret Key Rate in Wideband Wireless Physical-Layer-Security, MDPI Entropy, 2021

@article{
Mitev_2021_Entropy,
title = "Estimation of the Secret Key Rate in Wideband Wireless Physical-Layer-Security",
author = "Miroslav Mitev, Arsenia Chorti, Elena Belmega, Vincent Poor",
year = "2021",
journal = "MDPI Entropy"
}
Download BibTex

Marco Zoli, André Barreto, Stefan Köpsell, Padmanava Sen, Gerhard Fettweis, Physical-Layer-Security Box: a concept for time-frequency channel-reciprocity key generation, EURASIP Journal on Wireless Communications and Networking, 2020, Download PDF

@article{
Zoli_2020_JWCN,
title = "Physical-Layer-Security Box: a concept for time-frequency channel-reciprocity key generation",
author = "Marco Zoli, André Barreto, Stefan Köpsell, Padmanava Sen, Gerhard Fettweis",
year = "2020",
journal = "EURASIP Journal on Wireless Communications and Networking",
month = "June",
number = "114",
pages = "24",
url = "https://doi.org/10.1186/s13638-020-01712-6",
doi = "10.1186/s13638-020-01712-6"
}
Download BibTex

Marco Zoli, André Barreto, Padmanava Sen, Gerhard Fettweis, Secure Joint Communications and Sensing using Chirp Modulation, 6G Wireless Summit (6G SUMMIT), 2020, Download PDF

@conference{
Dwivedi_2020_6gsummit,
title = "Secure Joint Communications and Sensing using Chirp Modulation",
author = "Marco Zoli, André Barreto, Padmanava Sen, Gerhard Fettweis",
year = "2020",
booktitle = "6G Wireless Summit (6G SUMMIT)",
address = "Levi, Finland",
month = "March",
url = "https://doi.org/10.1109/6GSUMMIT49458.2020.9083884",
doi = "10.1109/6GSUMMIT49458.2020.9083884"
}
Download BibTex