{
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  "sourcePath": "src/main/data/docs",
  "docId": "RFC8750",
  "document": {
    "abstract": "Encapsulating Security Payload (ESP) sends an initialization vector (IV) in each packet. The size of the IV depends on the applied transform and is usually 8 or 16 octets for the transforms defined at the time this document was written. When used with IPsec, some algorithms, such as AES-GCM, AES-CCM, and ChaCha20-Poly1305, take the IV to generate a nonce that is used as an input parameter for encrypting and decrypting. This IV must be unique but can be predictable. As a result, the value provided in the ESP Sequence Number (SN) can be used instead to generate the nonce. This avoids sending the IV itself and saves 8 octets per packet in the case of AES-GCM, AES-CCM, and ChaCha20-Poly1305. This document describes how to do this.",
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    },
    "authors": [
      {
        "name": "Daniel Migault"
      },
      {
        "name": "Tobias Guggemos"
      },
      {
        "name": "Yoav Nir"
      }
    ],
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
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      "updated": "2026-10-20T21:46:28.863Z",
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      "confidence": "high",
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    "docLabel": "IETF RFC 8750",
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      "confidence": "high",
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      "updated": "2026-10-20T21:46:28.863Z",
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    "docNumber": "8750",
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      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-20T21:46:28.863Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docTitle": "Implicit Initialization Vector (IV) for Counter-Based Ciphers in Encapsulating Security Payload (ESP)",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-20T21:46:28.863Z",
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    },
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      "confidence": "high",
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      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-20T21:46:28.863Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "doi": "10.17487/RFC8750",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
      "updated": "2026-10-20T21:46:28.863Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "href": "https://doi.org/10.17487/RFC8750",
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
      "updated": "2026-10-20T21:46:28.863Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "keywords": [
      "IKE",
      "IPSEC",
      "GCM",
      "CCM",
      "ChaCha20"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
      "updated": "2026-10-20T21:46:28.863Z",
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    "pages": "8",
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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/rfc8750/",
      "updated": "2026-10-20T21:46:28.863Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "publicationDate": "2020-03-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
      "updated": "2026-10-20T21:46:28.863Z",
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    "publisher": "IETF",
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      "confidence": "high",
      "note": "Static: provider",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
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    "references": {
      "bibliographic": [
        "IETF.draft-ietf-ipsecme-g-ikev2-00",
        "IANA",
        "orphan/RFC8750/h:dc569d8b"
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      "bibliographic$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
        "updated": "2026-10-20T21:46:28.863Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
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        "RFC2119",
        "RFC3602",
        "RFC3686",
        "RFC4106",
        "RFC4303",
        "RFC4309",
        "RFC5374",
        "RFC6311",
        "RFC6407",
        "RFC7296",
        "RFC7383",
        "RFC7634",
        "RFC8174",
        "RFC8221"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
        "updated": "2026-10-20T21:46:28.863Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
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    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc8750/",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
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      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
      "updated": "2026-10-20T21:46:28.863Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
        "updated": "2026-10-20T21:46:28.863Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
        "updated": "2026-10-20T21:46:28.863Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
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      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
        "updated": "2026-10-20T21:46:28.863Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
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      "statusNote": "Proposed Standard",
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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/rfc8750/",
        "updated": "2026-10-20T21:46:28.863Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
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        "confidence": "high",
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        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc8750/",
        "updated": "2026-10-20T21:46:28.863Z",
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