{
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    "abstract": "This document describes the SEED encryption algorithm, which has been adopted by most of the security systems in the Republic of Korea. Included are a description of the cipher and the key scheduling algorithm (Section 2), the S-boxes (Appendix A), and a set of test vectors (Appendix B). This memo provides information for the Internet community.",
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    "authors": [
      {
        "name": "Jongwook Park"
      },
      {
        "name": "Sungjae Lee"
      },
      {
        "name": "Jeeyeon Kim"
      },
      {
        "name": "Jaeil Lee"
      }
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
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      "source": "parsed",
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      "updated": "2026-10-13T17:22:10.944Z",
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    "docId": "RFC4009",
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      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
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    "docLabel": "IETF RFC 4009",
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      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
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    "docNumber": "4009",
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      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
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    "docTitle": "The SEED Encryption Algorithm",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
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      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "doi": "10.17487/RFC4009",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "href": "https://doi.org/10.17487/RFC4009",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "keywords": [
      "Encryption",
      "SEED"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
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    "pages": "17",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "publicationDate": "2005-02-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "publisher": "IETF",
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      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "references": {
      "bibliographic": [
        "orphan/RFC4009/h:aac2e0ff",
        "orphan/RFC4009/h:760e4353"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "note": "Citations without a standard ID, kept as MRI orphan refs (or resolved once the reference label was stripped)",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
        "updated": "2026-10-13T17:24:06.632Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "normative": [
        "RFC2898",
        "orphan/RFC4009/h:75a5ff15"
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      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
        "updated": "2026-10-13T17:22:10.944Z",
        "version": "extractDocs.js@commit:996495349225"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc4009/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
      "updated": "2026-10-13T17:22:10.944Z",
      "version": "extractDocs.js@commit:996495349225"
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      "active": false,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
        "updated": "2026-10-13T17:22:10.944Z",
        "version": "extractDocs.js@commit:996495349225"
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      "errataExist": true,
      "errataExist$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/rfc4009/",
        "updated": "2026-10-13T17:22:10.944Z",
        "version": "extractDocs.js@commit:996495349225"
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      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc4009",
        "https://www.rfc-editor.org/errata_search.php?rfc=4009"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
        "updated": "2026-10-13T17:22:10.944Z",
        "version": "extractDocs.js@commit:996495349225"
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      "latestVersion": false,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
        "updated": "2026-10-13T17:22:10.944Z",
        "version": "extractDocs.js@commit:996495349225"
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      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
        "updated": "2026-10-13T17:22:10.944Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "superseded": true,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
        "updated": "2026-10-13T17:22:10.944Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "supersededBy": [
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      ],
      "supersededBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4009/",
        "updated": "2026-10-13T17:22:10.944Z",
        "version": "extractDocs.js@commit:996495349225"
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}