Shared secret key generation via carrier frequency offsets

Waqas Aman, Aneeqa Ijaz, M. Mahboob Ur Rahman, Dushanta Nalin K. Jayakody, Haris Pervaiz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work presents a novel method to generate secret keys shared between a legitimate node pair (Alice and Bob) to safeguard the communication between them from an unauthorized node (Eve). To this end, we exploit the reciprocal carrier frequency offset (CFO) between the legitimate node pair to extract common randomness out of it to generate shared secret keys. The proposed key generation algorithm involves standard steps: the legitimate nodes exchange binary phase-shift keying (BPSK) signals to perform blind CFO estimation on the received signals, and do equi-probable quantization of the noisy CFO estimates followed by information reconciliation-to distil a shared secret key. Furthermore, guided by the Allan deviation curve, we distinguish between the two frequency-stability regimes-when the randomly time-varying CFO process i) has memory, ii) is memoryless; thereafter, we compute the key generation rate for both regimes. Simulation results show that the key disagreement rate decreases exponentially with increase in the signal to noise ratio of the link between Alice and Bob. Additionally, the decipher probability of Eve decreases as soon as either of the two links observed by the Eve becomes more degraded compared to the link between Alice and Bob.

Original languageEnglish
Title of host publication2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728112176
DOIs
Publication statusPublished - 1 Apr 2019
Event89th IEEE Vehicular Technology Conference, VTC Spring 2019 - Kuala Lumpur, Malaysia
Duration: 28 Apr 20191 May 2019

Publication series

NameIEEE Vehicular Technology Conference
Volume2019-April
ISSN (Print)1550-2252

Conference

Conference89th IEEE Vehicular Technology Conference, VTC Spring 2019
CountryMalaysia
CityKuala Lumpur
Period28.4.191.5.19

Fingerprint

Binary phase shift keying
Carrier Frequency Offset
Frequency stability
Telecommunication links
Signal to noise ratio
Data storage equipment
Communication
Vertex of a graph
Decrease
Reconciliation
Probable
Phase Shift
Randomness
Quantization
Time-varying
Deviation
Binary
Curve
Estimate
Simulation

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Aman, W., Ijaz, A., Rahman, M. M. U., Jayakody, D. N. K., & Pervaiz, H. (2019). Shared secret key generation via carrier frequency offsets. In 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings [8746406] (IEEE Vehicular Technology Conference; Vol. 2019-April). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCSpring.2019.8746406

Shared secret key generation via carrier frequency offsets. / Aman, Waqas; Ijaz, Aneeqa; Rahman, M. Mahboob Ur; Jayakody, Dushanta Nalin K.; Pervaiz, Haris.

2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. 8746406 (IEEE Vehicular Technology Conference; Vol. 2019-April).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aman, W, Ijaz, A, Rahman, MMU, Jayakody, DNK & Pervaiz, H 2019, Shared secret key generation via carrier frequency offsets. in 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings., 8746406, IEEE Vehicular Technology Conference, vol. 2019-April, Institute of Electrical and Electronics Engineers Inc., 89th IEEE Vehicular Technology Conference, VTC Spring 2019, Kuala Lumpur, Malaysia, 28.4.19. https://doi.org/10.1109/VTCSpring.2019.8746406
Aman W, Ijaz A, Rahman MMU, Jayakody DNK, Pervaiz H. Shared secret key generation via carrier frequency offsets. In 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. 8746406. (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VTCSpring.2019.8746406
Aman, Waqas ; Ijaz, Aneeqa ; Rahman, M. Mahboob Ur ; Jayakody, Dushanta Nalin K. ; Pervaiz, Haris. / Shared secret key generation via carrier frequency offsets. 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. (IEEE Vehicular Technology Conference).
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