Error reconciliation with turbo codes for secret key generation in vehicular ad hoc networks

D.K. Ben Ismail, Petros Karadimas, Gregory Epiphaniou, Haider Al-Khateeb

Research output: Chapter in Book/Published conference outputConference publication


We present an algorithm that allows two users to establish a symmetric cryptographic key by incorporating the most important features of the wireless channel in vehicle-to-vehicle (V2V) communication. The proposed model includes surrounding scatterers’ mobility by considering other vehicles; it also includes three-dimensional (3D) multipath propagation. These temporal variability attributes are incorporated into the key generation process where non-reciprocity compensation is combined with turbo codes (TCs). For fair comparisons, the indexing technique is applied in conjunction with the non-reciprocity compensation technique. A series of simulations are run to calculate key performance indicators (KPIs). The entropy values were high throughout all rounds of simulation and estimated around 0.94 to 0.99 bits per sample. Furthermore, simulation results reveal a decrease in bit mismatch rate (BMR) and an increase key generation rate (KGR) when TCs are used. The estimated BMR is nearly the same for different key lengths, and it is estimated to only 0.02 with TCs, compared to 0.22 obtained with the indexing technique. Finally, the key generation rate was also reported high ranging from 35 to 39 for the 128-bit symmetric keys per minute with TCs, while it is ranging from 3 to 7 when compared with a sample indexing technique published in the public domain.
Original languageEnglish
Title of host publicationIntelligent Computing
Subtitle of host publicationProceedings of the 2018 Computing Conference, Volume 2
EditorsKohei Arai, Supriya Kapoor, Rahul Bhatia
Place of PublicationLondon, United Kingdom
Number of pages8
ISBN (Electronic)978-3-030-01177-2
Publication statusE-pub ahead of print - 2 Nov 2019
EventProceedings of the Computing Conference 2018 held in London - London, United Kingdom, London, United Kingdom
Duration: 10 Jul 201812 Jul 2018

Publication series

NameAdvances in Intelligent Systems and Computing book series (AISC,volume 857)
PublisherSpringer Cham
ISSN (Print)2194-5357
ISSN (Electronic)2194-5365


ConferenceProceedings of the Computing Conference 2018 held in London
Country/TerritoryUnited Kingdom


  • Bis mismatch rate
  • Entropy
  • Error reconciliation
  • Key generation
  • Quantization
  • Scatterers' mobility
  • Temporal variability
  • Thresholding
  • Turbo codes


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