Secret Key Agreement for Data Dissemination in Vehicular Platoons
Author | Li K. |
Author | Lu L. |
Author | Ni W. |
Author | Tovar E. |
Author | Guizani M. |
Available date | 2020-04-23T14:21:34Z |
Publication Date | 2019 |
Publication Name | IEEE Transactions on Vehicular Technology |
Resource | Scopus |
ISSN | 189545 |
Abstract | In a vehicular platoon, the lead vehicle that is responsible for managing the platoon's moving directions and velocity periodically disseminates messages to the following automated vehicles in a multi-hop vehicular network. However, due to the broadcast nature of wireless channels, this kind of communication is vulnerable to eavesdropping and message modification. Generating secret keys by extracting the shared randomness in a wireless fading channel is a promising way for wireless communication security. We study a security protocol for data dissemination in the platoon, where the vehicles cooperatively generate a shared secret key based on the quantized fading channel randomness. To improve conformity of the generated key, the probability of secret key agreement is formulated, and a novel secret key agreement algorithm is proposed to recursively optimize the channel quantization intervals, maximizing the key agreement probability. Numerical evaluations demonstrate that the key agreement probability achieved by our security protocol given different platoon size, channel quality, and number of quantization intervals. Furthermore, by applying our security protocol, the probability that the encrypted data being cracked by an eavesdropper is less than 5%. - 2019 IEEE. |
Sponsor | Manuscript received January 29, 2019; revised April 30, 2019; accepted June 27, 2019. Date of publication July 2, 2019; date of current version September 17, 2019. This work was supported in part by the National Funds through FCT/MEC (Portuguese Foundation for Science and Technology), in part by the European Regional Development Fund under the PT2020 Partnership, within the CISTER Research Unit (CEC/04234), and in part by the FCT/MEC and the EU ECSEL JU under the H2020 Framework Programme, within project ECSEL/0002/2015, JU Grant 692529-2 (SAFECOP). The review of this paper was coordinated by Prof. X. Wang. (Corresponding author: Kai Li.) K. Li and E. Tovar are with the Research Centre in Real-Time and Embedded Computing Systems, 4249-015 Porto, Portugal (e-mail: kaili@isep.ipp.pt; emt@isep.ipp.pt). |
Language | en |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Subject | Autonomous vehicles data communication optimization vehicular security |
Type | Article |
Pagination | 9060-9073 |
Issue Number | 9 |
Volume Number | 68 |
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