Physical layer secret-key generation with discreet cosine transform for the Internet of Things

George Margelis; Xenofon Fafoutis; George Oikonomou; Robert Piechocki; Theo Tryfonas; Paul Thomas

doi:10.1109/ICC.2017.7997419

Physical layer secret-key generation with discreet cosine transform for the Internet of Things

George Margelis, Xenofon Fafoutis, George Oikonomou, Robert Piechocki, Theo Tryfonas, Paul Thomas

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

39 Citations (Scopus)

444 Downloads (Pure)

Abstract

The confidentiality of communications in the Internet of Things (IoT) is critical, with cryptography currently being the most widely employed method of ensuring it. Establishing cryptographically secure communication links between two transceivers requires the pre-agreement on some key, unknown to an external attacker. In recent years there has been growing attention in techniques that generate a shared random key through observation of the channel and its effects on the exchanged messages. In this work we present SKYGlow, a novel scheme for secret-key generation, designed for IoT devices, such as IEEE 802.15.4 and Bluetooth Low Energy (BLE) transceivers. SKYGlow employs the Discreet Cosine Transform (DCT) of channel observations and Slepian-Wolf coding for information reconciliation. Real-life experiments have resulted in the creation of 128-bit secret keys with only 65 packet exchanges and with an entropy of 0.9978 bits, making our scheme much more energy-efficient compared with others in the existing literature.

Original language	English
Title of host publication	2017 IEEE International Conference on Communications (ICC 2017)
Subtitle of host publication	Proceedings of a meeting held 21-25 May 2017, Paris, France
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Number of pages	6
ISBN (Electronic)	9781467389990
ISBN (Print)	9781467390002
DOIs	https://doi.org/10.1109/ICC.2017.7997419
Publication status	Published - Nov 2017
Event	2017 IEEE International Conference on Communications, ICC 2017 - Paris, France Duration: 21 May 2017 → 25 May 2017

Publication series

Name
ISSN (Print)	1938-1883

Conference

Conference	2017 IEEE International Conference on Communications, ICC 2017
Country/Territory	France
City	Paris
Period	21/05/17 → 25/05/17

Keywords

Secret-Key
DCT
physical layer
SECURITY
physical layer security

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10.1109/ICC.2017.7997419

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Margelis, G., Fafoutis, X., Oikonomou, G., Piechocki, R., Tryfonas, T., & Thomas, P. (2017). Physical layer secret-key generation with discreet cosine transform for the Internet of Things. In 2017 IEEE International Conference on Communications (ICC 2017): Proceedings of a meeting held 21-25 May 2017, Paris, France Article 7997419 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICC.2017.7997419

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abstract = "The confidentiality of communications in the Internet of Things (IoT) is critical, with cryptography currently being the most widely employed method of ensuring it. Establishing cryptographically secure communication links between two transceivers requires the pre-agreement on some key, unknown to an external attacker. In recent years there has been growing attention in techniques that generate a shared random key through observation of the channel and its effects on the exchanged messages. In this work we present SKYGlow, a novel scheme for secret-key generation, designed for IoT devices, such as IEEE 802.15.4 and Bluetooth Low Energy (BLE) transceivers. SKYGlow employs the Discreet Cosine Transform (DCT) of channel observations and Slepian-Wolf coding for information reconciliation. Real-life experiments have resulted in the creation of 128-bit secret keys with only 65 packet exchanges and with an entropy of 0.9978 bits, making our scheme much more energy-efficient compared with others in the existing literature.",

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Margelis, G, Fafoutis, X, Oikonomou, G , Piechocki, R , Tryfonas, T & Thomas, P 2017, Physical layer secret-key generation with discreet cosine transform for the Internet of Things. in 2017 IEEE International Conference on Communications (ICC 2017): Proceedings of a meeting held 21-25 May 2017, Paris, France., 7997419, Institute of Electrical and Electronics Engineers (IEEE), 2017 IEEE International Conference on Communications, ICC 2017, Paris, France, 21/05/17. https://doi.org/10.1109/ICC.2017.7997419

Physical layer secret-key generation with discreet cosine transform for the Internet of Things. / Margelis, George; Fafoutis, Xenofon; Oikonomou, George et al.
2017 IEEE International Conference on Communications (ICC 2017): Proceedings of a meeting held 21-25 May 2017, Paris, France. Institute of Electrical and Electronics Engineers (IEEE), 2017. 7997419.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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AU - Fafoutis, Xenofon

AU - Oikonomou, George

AU - Piechocki, Robert

AU - Tryfonas, Theo

AU - Thomas, Paul

PY - 2017/11

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AB - The confidentiality of communications in the Internet of Things (IoT) is critical, with cryptography currently being the most widely employed method of ensuring it. Establishing cryptographically secure communication links between two transceivers requires the pre-agreement on some key, unknown to an external attacker. In recent years there has been growing attention in techniques that generate a shared random key through observation of the channel and its effects on the exchanged messages. In this work we present SKYGlow, a novel scheme for secret-key generation, designed for IoT devices, such as IEEE 802.15.4 and Bluetooth Low Energy (BLE) transceivers. SKYGlow employs the Discreet Cosine Transform (DCT) of channel observations and Slepian-Wolf coding for information reconciliation. Real-life experiments have resulted in the creation of 128-bit secret keys with only 65 packet exchanges and with an entropy of 0.9978 bits, making our scheme much more energy-efficient compared with others in the existing literature.

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Margelis G, Fafoutis X, Oikonomou G , Piechocki R , Tryfonas T, Thomas P. Physical layer secret-key generation with discreet cosine transform for the Internet of Things. In 2017 IEEE International Conference on Communications (ICC 2017): Proceedings of a meeting held 21-25 May 2017, Paris, France. Institute of Electrical and Electronics Engineers (IEEE). 2017. 7997419 Epub 2017 Jul 31. doi: 10.1109/ICC.2017.7997419

Physical layer secret-key generation with discreet cosine transform for the Internet of Things

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