{
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  "docId": "RFC9416",
  "document": {
    "abstract": "Poor selection of transient numerical identifiers in protocols such as the TCP/IP suite has historically led to a number of attacks on implementations, ranging from Denial of Service (DoS) or data injection to information leakages that can be exploited by pervasive monitoring. Due diligence in the specification of transient numeric identifiers is required even when cryptographic techniques are employed, since these techniques might not mitigate all the associated issues. This document formally updates RFC 3552, incorporating requirements for transient numeric identifiers, to prevent flaws in future protocols and implementations.",
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    "authors": [
      {
        "name": "Fernando Gont"
      },
      {
        "name": "Ivan Arce"
      }
    ],
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      "confidence": "high",
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      "confidence": "high",
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      "confidence": "high",
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      "updated": "2026-10-14T18:51:10.674Z",
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    "docNumber": "9416",
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      "confidence": "high",
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    "docTitle": "Security Considerations for Transient Numeric Identifiers Employed in Network Protocols",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
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      "updated": "2026-10-14T18:51:10.674Z",
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      "confidence": "high",
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      "updated": "2026-10-14T18:51:10.674Z",
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    },
    "doi": "10.17487/RFC9416",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
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      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
      "updated": "2026-10-14T18:51:10.674Z",
      "version": "extractDocs.js@commit:673dd514c094"
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    "href": "https://doi.org/10.17487/RFC9416",
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
      "updated": "2026-10-14T18:51:10.674Z",
      "version": "extractDocs.js@commit:673dd514c094"
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    "keywords": [
      "Security",
      "Vulnerability",
      "Algorithm",
      "Fingerprinting"
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      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
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      "updated": "2026-10-14T18:51:10.674Z",
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      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
      "updated": "2026-10-14T18:51:10.674Z",
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    },
    "publicationDate": "2023-07-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
      "updated": "2026-10-14T18:51:10.674Z",
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      "source": "parsed",
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        "IETF.draft-gont-predictable-numeric-ids-03",
        "RFC791",
        "RFC793",
        "RFC1035",
        "RFC2460",
        "RFC4291",
        "RFC5905",
        "RFC6056",
        "RFC6274",
        "RFC6528",
        "RFC7217",
        "RFC7258",
        "RFC7323",
        "RFC7707",
        "RFC7721",
        "RFC7739",
        "RFC8200",
        "RFC9293",
        "RFC9414",
        "RFC9415",
        "orphan/RFC9416/h:5a6a7ba2",
        "orphan/RFC9416/h:5ebe7bac",
        "orphan/RFC9416/h:619756f6",
        "orphan/RFC9416/h:d4c177ea",
        "orphan/RFC9416/h:4c692879",
        "orphan/RFC9416/h:32b0576e",
        "orphan/RFC9416/h:a5374157",
        "orphan/RFC9416/h:cda50d36",
        "orphan/RFC9416/h:f6aa5246"
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        "confidence": "high",
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        "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
        "updated": "2026-10-14T18:51:10.674Z",
        "version": "extractDocs.js@commit:673dd514c094"
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        "RFC3552",
        "RFC8174"
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        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
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        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
        "updated": "2026-10-14T18:51:10.674Z",
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      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
      "updated": "2026-10-14T18:51:10.674Z",
      "version": "extractDocs.js@commit:673dd514c094"
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
        "updated": "2026-10-14T18:51:10.674Z",
        "version": "extractDocs.js@commit:673dd514c094"
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      "amends": [
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        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
        "updated": "2026-10-14T18:51:10.674Z",
        "version": "extractDocs.js@commit:673dd514c094"
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      "errataExist": false,
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        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
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        "updated": "2026-10-14T18:51:10.674Z",
        "version": "extractDocs.js@commit:673dd514c094"
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      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
        "updated": "2026-10-14T18:51:10.674Z",
        "version": "extractDocs.js@commit:673dd514c094"
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      "statusNote": "Best Current Practice",
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
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        "version": "extractDocs.js@commit:673dd514c094"
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        "confidence": "high",
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        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9416/",
        "updated": "2026-10-14T18:51:10.674Z",
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