{
  "abstract": "Vehicle-to-Everything (V2X) communications rely on elliptic-curve signatures that a quantum adversary breaks and on pseudonym certificates whose anonymity rests on rotation rate, not cryptography. This work presents qDGSP, a post-quantum V2X infrastructure: a hash-based dynamic group signature scheme (DGSP, over SPHINCS+ and WOTS+) distributed between a central controller and roadside verifiers. Group keys derive deterministically from quantum key distribution (QKD) seeds served over the ETSI GS QKD 014 interface, so no group-signature secret crosses the classical channel. qDGSP-EA (Ephemeral Association) binds an ephemeral ML-DSA-65 key to one group signature per 5G cell: messages remain unlinkable across cells, linkable within one. On a testbed with emulated 5G links, median end-to-end latency stayed within the 100ms ETSI budget for every variant. The qDGSP-EA intra-cell DENM matched the NIST ML-DSA-65 baseline on the wire, and under load EA mode raised delivery from roughly 78% to 93%.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.27316",
  "author_total": 7,
  "authors": [
    {
      "name": "P. Blanco-Casal"
    },
    {
      "name": "P. Rejo-Iglesias"
    },
    {
      "name": "D. Cajaraville-Aboy"
    },
    {
      "name": "J. Vecino-Peñas"
    },
    {
      "name": "R. P. Díaz-Redondo"
    },
    {
      "name": "A. Fernández-Vilas"
    },
    {
      "name": "M. Fernández Veiga"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dpn30gdftkwg1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.27316",
  "fulltext_url": null,
  "id": "dpn30gdftkwg1",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.27316",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cs.CR"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "2208|Vehicular Ad Hoc Networks (VANETs)"
    ]
  ],
  "openalex": "W7223106896",
  "pdf_url": "https://arxiv.org/pdf/2610.27316",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dpn30gdftkwg1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:04Z",
      "native_id": "2610.27316",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.27316"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Quantum-Seeded Distributed Post-Quantum Group Signatures for 5G V2X Communications",
  "title_text": "Quantum-Seeded Distributed Post-Quantum Group Signatures for 5G V2X Communications",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:04Z",
  "url": "https://research.draconitic.com/paper/dpn30gdftkwg1",
  "venue": "arXiv",
  "versions": []
}