{
  "abstract": "Data privacy and authentication are two main security requirements for remote access and cloud services. While QKD has been explored to address data privacy concerns, oftentimes its use is separate from the client authentication protocol despite implicitly providing authentication. Here, we present a quantum authentication key expansion (QAKE) protocol that (1) integrates both authentication and key expansion within a single protocol, and (2) provides key recycling property – allowing all authentication keys to be reused. We analyse the security of the protocol in a QAKE framework adapted from a classical authentication key exchange (AKE) framework, providing separate security conditions for authentication and data privacy. We experimentally implemented the protocol with appropriate post-selection. Additional results on the security of pseudorandom basis generation in QAKE and decoy state BB84 are provided.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Paper",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "name": "Wen Yu Kon"
    },
    {
      "name": "Jefferson Chu"
    },
    {
      "name": "Kevin Han Yong Loh"
    },
    {
      "name": "Obada Alia"
    },
    {
      "name": "Omar Amer"
    },
    {
      "name": "Marco Pistoia"
    },
    {
      "name": "Kaushik Chakraborty"
    },
    {
      "name": "Charles Lim"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2mx7xq30f1wmq.bib",
  "cited_by": 0,
  "doi": "10.22331/q-2026-10-28-2255",
  "fulltext_url": null,
  "id": "2mx7xq30f1wmq",
  "issns": [
    "2521-327X"
  ],
  "landing_url": "https://quantum-journal.org/papers/q-2026-10-28-2255/",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "feed-journal",
      "physics/quantum"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W4403783976",
  "pdf_url": "https://quantum-journal.org/papers/q-2026-10-28-2255/pdf/",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-28",
  "publisher": "Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften",
  "ris": "https://research.draconitic.com/paper/2mx7xq30f1wmq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:17Z",
      "native_id": "10.22331/q-2026-10-28-2255",
      "source": "feed-quantum",
      "url": "https://quantum-journal.org/papers/q-2026-10-28-2255/"
    },
    {
      "first_seen": "2026-10-30T12:17:58Z",
      "native_id": "10.22331/q-2026-10-28-2255",
      "source": "crossref",
      "url": "https://quantum-journal.org/papers/q-2026-10-28-2255/"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "feed-journal:physics/quantum",
      "subfield": "quantum"
    }
  ],
  "title": "Quantum Authenticated Key Expansion with Key Recycling",
  "title_text": "Quantum Authenticated Key Expansion with Key Recycling",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:58Z",
  "url": "https://research.draconitic.com/paper/2mx7xq30f1wmq",
  "venue": "Quantum",
  "versions": []
}