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Encrypted body-to-body wireless sensor node employing channel-state-based key generation

Patrick Van Torre UGent, Thijs Castel and Hendrik Rogier UGent (2016) 2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) . In Proceedings of the European Conference on Antennas and Propagation p.1-5
abstract
In this paper, experimental results are presented for an encrypted wireless link between two body-worn sensor nodes fully integrated onto textile antenna platforms. Wireless communication between two persons walking in an indoor environment occurs over a unique physical propagation channel. For the purpose of data encryption, channel measurements are performed at both sides of the link, providing highly correlated pseudo random number sequences, with envelope correlation coefficients always above 0.7. Signals captured by an eavesdropper are substantially decorrelated, with correlation coefficients always below 0.15, and are therefore not suitable for key extraction. The mutual information is also determined, providing extra insight into the key generating potential of the pseudo random sequences. Practical error free secret key generation on both sides of the link, with reconciliation by means of Hamming check bits, is performed successfully in all cases between legitimate parties. At the same time, an eavesdropper is unable to extract the secret key from measured signals, as confirmed by the key error rates, which are calculated for all possible signal combinations, resulting in a key error rate after reconciliation around 0.5 for most eavesdropper channels and remaining at least 0.3 in the worst-case scenario.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
Key Generation, Encryption, Channel-State Information, Body-Centric, Textile Antenna, IBCN, Reconciliation
in
2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)
series title
Proceedings of the European Conference on Antennas and Propagation
pages
1 - 5
publisher
IEEE
conference name
10th European Conference on Antennas and Propagation (EuCAP)
conference location
Davos, Switserland
conference start
2016-04-10
conference end
2016-04-15
Web of Science type
Proceedings Paper
Web of Science id
000400784902191
ISSN
2164-3342
ISBN
978-8-8907-0186-3
DOI
10.1109/EuCAP.2016.7481769
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
7409083
handle
http://hdl.handle.net/1854/LU-7409083
date created
2016-06-27 10:01:25
date last changed
2017-06-13 08:50:48
@inproceedings{7409083,
  abstract     = {In this paper, experimental results are presented for an encrypted wireless link between two body-worn sensor nodes fully integrated onto textile antenna platforms. Wireless communication between two persons walking in an indoor environment occurs over a unique physical propagation channel. For the purpose of data encryption, channel measurements are performed at both sides of the link, providing highly correlated pseudo random number sequences, with envelope correlation coefficients always above 0.7. Signals captured by an eavesdropper are substantially decorrelated, with correlation coefficients always below 0.15, and are therefore not suitable for key extraction. The mutual information is also determined, providing extra insight into the key generating potential of the pseudo random sequences. Practical error free secret key generation on both sides of the link, with reconciliation by means of Hamming check bits, is performed successfully in all cases between legitimate parties. At the same time, an eavesdropper is unable to extract the secret key from measured signals, as confirmed by the key error rates, which are calculated for all possible signal combinations, resulting in a key error rate after reconciliation around 0.5 for most eavesdropper channels and remaining at least 0.3 in the worst-case scenario.},
  author       = {Van Torre, Patrick and Castel, Thijs and Rogier, Hendrik},
  booktitle    = {2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) },
  isbn         = {978-8-8907-0186-3},
  issn         = {2164-3342 },
  keyword      = {Key Generation,Encryption,Channel-State Information,Body-Centric,Textile Antenna,IBCN,Reconciliation},
  language     = {eng},
  location     = {Davos, Switserland},
  pages        = {1--5},
  publisher    = {IEEE},
  title        = {Encrypted body-to-body wireless sensor node employing channel-state-based key generation},
  url          = {http://dx.doi.org/10.1109/EuCAP.2016.7481769},
  year         = {2016},
}

Chicago
Van Torre, Patrick, Thijs Castel, and Hendrik Rogier. 2016. “Encrypted Body-to-body Wireless Sensor Node Employing Channel-state-based Key Generation.” In 2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) , 1–5. IEEE.
APA
Van Torre, P., Castel, T., & Rogier, H. (2016). Encrypted body-to-body wireless sensor node employing channel-state-based key generation. 2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) (pp. 1–5). Presented at the 10th European Conference on Antennas and Propagation (EuCAP) , IEEE.
Vancouver
1.
Van Torre P, Castel T, Rogier H. Encrypted body-to-body wireless sensor node employing channel-state-based key generation. 2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) . IEEE; 2016. p. 1–5.
MLA
Van Torre, Patrick, Thijs Castel, and Hendrik Rogier. “Encrypted Body-to-body Wireless Sensor Node Employing Channel-state-based Key Generation.” 2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) . IEEE, 2016. 1–5. Print.