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PQC for Vehicle-to-Everything Communication Protocols

Applying FIPS 203/204/205 to V2X, DSRC, and C-V2X protocol stacks for connected vehicle security.

Full day (6 hours)
Certificate on completion
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Course Overview

For V2X architects, automotive security engineers, and connected vehicle programme leads. Covers IEEE 1609.2 and ETSI ITS quantum vulnerabilities, V2X PKI trust chain exposure, BSM/CAM signing migration to ML-DSA, bandwidth and latency constraints, and hybrid transition strategies for deployed vehicle fleets.

Curriculum

Course content is structured into sessions below. Each session is configurable to your organisation's environment, threat model, and objectives.

# Session Topics
1 V2X Communication Architecture and Its Cryptographic Foundation How vehicles authenticate and trust each other on the road
2 Quantum Threats to V2X Protocols Shor's algorithm against IEEE 1609.2 and ETSI ITS security
  • IEEE 1609.2 security services: ECDSA P-256 signatures on Basic Safety Messages (BSMs) and Cooperative Awareness Messages (CAMs). Shor's algorithm breaks ECDSA entirely, enabling forged vehicle identity and spoofed safety-critical messages.
  • ETSI ITS security architecture: certificate-based authentication using ECDSA and ECIES. Quantum compromise of the V2X PKI root or intermediate CAs would undermine the entire European C-ITS trust framework.
  • DSRC versus C-V2X: both protocols depend on the same underlying IEEE 1609.2 security layer. The radio access technology differs, but the cryptographic vulnerability is identical.
Break
3 V2X PKI and Certificate Management Under Quantum Threat Root CA compromise, pseudonym certificate rotation, and misbehaviour detection
  • V2X PKI hierarchy: root CA, enrolment authority (EA), authorisation authority (AA), and pseudonym certificates. Each layer uses ECDSA or ECDH, creating a complete quantum-vulnerable trust chain.
  • Pseudonym certificate rotation: vehicles cycle through short-lived certificates for privacy. PQC certificate sizes (ML-DSA signatures are 2,420 bytes versus 64 bytes for ECDSA) directly impact rotation bandwidth and latency.
  • Misbehaviour detection: the Security Credential Management System (SCMS) relies on cryptographic proofs to identify and revoke compromised vehicles. Quantum attack on these proofs undermines the entire misbehaviour reporting mechanism.
4 Interactive Demonstration: V2X Cryptographic Dependency Audit Full-day format only
  • Mapping a representative V2X deployment: identifying every ECDSA, ECDH, and ECIES dependency in the message signing, encryption, and PKI layers
  • Evaluating PQC algorithm candidates against V2X latency requirements: BSM/CAM generation at 10 Hz requires signature verification in under 1 millisecond
  • Sizing the bandwidth impact: comparing classical ECDSA certificate and signature sizes against ML-DSA and SLH-DSA alternatives for certificate distribution channels
Break
5 PQC Migration Strategies for V2X Replacing ECDSA in safety-critical, latency-constrained protocols
  • ML-DSA (FIPS 204) for BSM/CAM signing: performance benchmarks on automotive-grade processors, signature size impact on 802.11p/C-V2X channel capacity
  • Hybrid schemes: running classical ECDSA alongside ML-DSA during transition to maintain backward compatibility with legacy vehicles already deployed
  • PKI migration: transitioning V2X root CAs, enrolment authorities, and authorisation authorities to post-quantum algorithms without breaking the existing certificate ecosystem
6 Standards Roadmap and Industry Coordination IEEE, ETSI, SAE, and regulatory timelines
  • IEEE 1609.2 revision process: current working group activity on post-quantum algorithm integration and backward compatibility provisions
  • ETSI ITS security: European roadmap for C-ITS trust model migration and the interaction with eIDAS 2.0 qualified trust services
  • Vehicle lifecycle constraint: vehicles sold today will operate for 10 to 15 years. Cryptographic agility in V2X hardware and OTA update mechanisms determines whether deployed vehicles can migrate.
7 Q&A and Migration Planning

Designed and Delivered By

Training courses are designed and delivered by QSECDEF in collaboration with subject specialists. All instructors have direct experience in quantum technologies and security.

QD

Quantum Security Defence

Course design and delivery

QSECDEF brings expertise in post-quantum cryptography, quantum computing strategy, and defence-grade security assessment. Our membership spans 900+ organisations and 1,500+ professionals working at the intersection of quantum technologies and critical infrastructure security.

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