{
  "annotation_id": "0c92008f-3a77-4baa-8340-d59d7f4e94a2",
  "date_created": "2026-03-02T18:01:37.941000Z",
  "date_modified": "2026-03-02T18:01:37.941000Z",
  "file_hash": "9cc34de0ef84ea19e28f2395f4841e1298d082b54995b81301e8850dc20fe44e",
  "private": false,
  "record": {
    "abstract": "We examine security of a protocol on cryptographic key distribution via\nclassical noise proposed by Yuen and Kim (Phys. Lett. A 241 135 (1998)).\nTheoretical and experimental analysis in terms of the secure key distribution\nrate shows that secure key distribution is possible even if the eavesdropper\ncould receive more photons than the legitimate receiver, as long as the\nsignal-to-noise-ratio (SNR) of the receiver is better than -9dB of the\neavesdropper\u0027s SNR. Secure key distribution was demonstrated at the maximum\nrate of 0.04 bit per sender\u0027s bit and transmission rate of 2 Mb/s in the\nexperiment employing conventional fiber optics. The present protocol has\nadvantages of the efficient key distribution and the simple implementation over\nother quantum key distribution protocols. However, careful design and\nmanagement are necessary to keep the security of the crypto-system.",
    "arxiv_id": "quant-ph/0002044",
    "authors": [
      "Akihisa Tomita",
      "Osamu Hirota"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1464-4266/2/6/301",
    "journal_ref": "J. Opt. B2, 705 (2000)",
    "title": "Security of classical noise-based cryptography",
    "url": "https://arxiv.org/abs/quant-ph/0002044"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f1040707-26ef-4af6-919c-4a94e29a7986",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}