{
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  "apiVersion": "1.1.0",
  "lastModified": "2026-10-14T16:16:14.314Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC8573",
  "document": {
    "abstract": "The Network Time Protocol (NTP), as described in RFC 5905, states that NTP packets should be authenticated by appending NTP data to a 128-bit key and hashing the result with MD5 to obtain a 128-bit tag. This document deprecates MD5-based authentication, which is considered too weak, and recommends the use of AES-CMAC as described in RFC 4493 as a replacement.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "authors": [
      {
        "name": "Aanchal Malhotra"
      },
      {
        "name": "Sharon Goldberg"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "docId": "RFC8573",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.313Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "docLabel": "IETF RFC 8573",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "docNumber": "8573",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "docTitle": "Message Authentication Code for the Network Time Protocol",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "doi": "10.17487/RFC8573",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "href": "https://doi.org/10.17487/RFC8573",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "keywords": [
      "NTP"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "pages": "5",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "publicationDate": "2019-06-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "references": {
      "bibliographic": [
        "RFC1321",
        "RFC6151",
        "RFC7696",
        "orphan/RFC8573/h:65eb79be",
        "orphan/RFC8573/h:e9473bfe",
        "orphan/RFC8573/h:be93e5c8"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=11 proseBlocks=14 skippedAnchorBlocks=12",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      },
      "normative": [
        "NIST.SP.800-38B",
        "RFC2119",
        "RFC4493",
        "RFC5905",
        "RFC8174"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc8573/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
      "updated": "2026-10-14T16:16:14.314Z",
      "version": "extractDocs.js@commit:1ff63569c1a0"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      },
      "amendedBy": [
        "RFC9748"
      ],
      "amendedBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      },
      "amends": [
        "RFC5905"
      ],
      "amends$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      },
      "statusNote": "Proposed Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8573/",
        "updated": "2026-10-14T16:16:14.314Z",
        "version": "extractDocs.js@commit:1ff63569c1a0"
      }
    }
  }
}