A Systematic Review of Post-Quantum Digital Signature Algorithms with Fragmentation for Secure Electric Vehicle Communication

DOI

10.2991/978-94-6239-616-6_106How to use a DOI?

Keywords

Hybrid Digital Signatures; Post-Quantum Cryptography (PQC); Fragmentation; Vehicle-to-Vehicle (V2V)

Abstract

The rapid advancement of quantum computing poses a significant threat to the security of current asymmetric cryptographic techniques, jeopardizing their availability, confidentiality, and integrity. Given the prolonged lifespan of vehicles, the automotive industry becomes increasingly susceptible to quantum computers once they are operational. Vehicle-to-vehicle (V2V) communication is particularly vulnerable due to its reliance on the Elliptic Curve Digital Signature Algorithm (ECDSA), which is currently secure but may not withstand the threats posed by quantum computing. Post-Quantum Cryptography (PQC) algorithms like CRYSTALS-Dilithium provide robust protection against quantum attacks; however, their high computational requirements and larger key sizes present significant challenges for vehicular systems that have limitations in band width and latency. This study investigates the viability of employing Dilithium for V2V communication through an analysis of IEEE 1609 and ETSI ITS standards, which currently do not encompass PQC guidelines. While Dilithium guarantees security against quantum threats, its sizable key material cannot be accom- modated by the existing limits on vehicular messages. To tackle this issue, a hybrid method that merges Dilithium with ECDSA is suggested, bolstered by an innovative key size fragmentation technique that facilitates the secure transmission and reconstruction of extensive keys. This strategy provides a feasible transitional approach to achieving quantum-safe V2V communication, ensuring minimal latency and alignment with current standards.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - N. Kalaiselvi
AU  - J. Samuel Immanuel
AU  - V. Vinoth
AU  - M. Gokul
PY  - 2026
DA  - 2026/03/31
TI  - A Systematic Review of Post-Quantum Digital Signature Algorithms with Fragmentation for Secure Electric Vehicle Communication
BT  - Proceedings of the International Conference on Artificial Intelligence and Secure Data Analytics (ICAISDA 2025)
PB  - Atlantis Press
SP  - 1475
EP  - 1487
SN  - 1951-6851
UR  - https://doi.org/10.2991/978-94-6239-616-6_106
DO  - 10.2991/978-94-6239-616-6_106
ID  - Kalaiselvi2026
ER  -