{
  "annotation_id": "abd81cf8-cdde-4e76-894b-0d9cf9b1db95",
  "date_created": "2026-03-02T18:02:09.815000Z",
  "date_modified": "2026-03-02T18:02:09.815000Z",
  "file_hash": "1c880a9b96c9a62484dc7cfecb8a74fe12fcc87a2028a1faa157fc33d3d089de",
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  "record": {
    "abstract": "We give a simple proof that it is impossible to guarantee the classicality of\ninputs into any mistrustful quantum cryptographic protocol. The argument\nilluminates the impossibility of unconditionally secure quantum implementations\nof essentially classical tasks such as bit commitment with a certified\nclassical committed bit, classical oblivious transfer, and secure classical\nmulti-party computations of secret classical data. It applies to both\nnon-relativistic and relativistic protocols.",
    "arxiv_id": "quant-ph/0409029",
    "authors": [
      "Adrian Kent"
    ],
    "categories": [
      "quant-ph",
      "cs.CR"
    ],
    "doi": "10.1007/s11128-011-0262-x",
    "journal_ref": "Quantum Information Processing, 11 (2), 493-499 (2012)",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Why Classical Certification is Impossible in a Quantum World",
    "url": "https://arxiv.org/abs/quant-ph/0409029"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3a5e1bb8-16ce-4453-848e-c3ab58f2ee77",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}