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RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)

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RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)

Summary

RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF) is a Request for Comments[1].

Key Facts

  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF) authored HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — author (P50): Pasi Eronen[2].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s instance of is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — instance of (P31): Request for Comments[3].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s publisher is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — publisher (P123): Internet Engineering Task Force[4].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s DOI is recorded as 10.17487/RFC5869[5].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s language of work or name is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — language of work or name (P407): English[6].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s publication date is recorded as +2010-05-01T00:00:00Z[7].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s RfC ID is recorded as 5869[8].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s main subject is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — main subject (P921): HKDF[9].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s work available at URL is recorded as https://tools.ietf.org/html/rfc5869[10].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s work available at URL is recorded as https://tools.ietf.org/rfc/rfc5869.txt[11].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s work available at URL is recorded as https://www.rfc-editor.org/rfc/rfc5869.txt[12].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s work available at URL is recorded as https://www.rfc-editor.org/pdfrfc/rfc5869.txt.pdf[13].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s number of pages is recorded as {'unit': '1', 'amount': '+14'}[14].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s title is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF)[15].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s author name string is recorded as H. Krawczyk[16].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s cites work is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — cites work (P2860): RFC 2104: HMAC: Keyed-Hashing for Message Authentication[17].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s cites work is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — cites work (P2860): RFC 2119: Key words for use in RFCs to Indicate Requirement Levels[18].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s cites work is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — cites work (P2860): RFC 5448: Improved Extensible Authentication Protocol Method for 3rd Generation Authentication and Key Agreement (EAP-AKA')[19].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s cites work is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — cites work (P2860): RFC 4306: Internet Key Exchange (IKEv2) Protocol[20].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s cites work is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — cites work (P2860): RFC 5191: Protocol for Carrying Authentication for Network Access (PANA)[21].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s cites work is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — cites work (P2860): RFC 2898: PKCS #5: Password-Based Cryptography Specification Version 2.0[22].
  • RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s DBLP publication ID is recorded as journals/rfc/rfc5869[23].

Body

Designation and Status

RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)'s instance of is recorded as HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — instance of (P31): Request for Comments[3].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . RFC Index. Retrieved . wikidata.org.
  2. [2] ↑ . RFC Index. Retrieved . wikidata.org.
  3. [4] ↑ . RFC Index. Retrieved . wikidata.org.
  4. [5] ↑ . RFC Index. Retrieved . wikidata.org.
  5. [6] ↑ . RFC Index. Retrieved . wikidata.org.
  6. [7] ↑ . RFC Index. Retrieved . wikidata.org.
  7. [8] ↑ . RFC Index. Retrieved . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . RFC Index. Retrieved . wikidata.org.
  10. [11] ↑ . RFC Index. Retrieved . wikidata.org.
  11. [12] ↑ . RFC Index. Retrieved . wikidata.org.
  12. [13] ↑ . RFC Index. Retrieved . wikidata.org.
  13. [14] ↑ . RFC Index. Retrieved . wikidata.org.
  14. [15] ↑ . RFC Index. Retrieved . wikidata.org.
  15. [16] ↑ . RFC Index. Retrieved . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . wikidata.org.
  22. [23] ↑ . DBLP Dataset 2021-01-02. Retrieved . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF). Retrieved May 3, 2026, from https://4ort.xyz/entity/rfc-5869-hmac-based-extract-and-expand-key-derivation-function-hkdf-
MLA “RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF).” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/rfc-5869-hmac-based-extract-and-expand-key-derivation-function-hkdf-.
BibTeX @misc{4ortxyz_rfc-5869-hmac-based-extract-and-expand-key-derivation-function-hkdf-_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)}}, year = {2026}, url = {https://4ort.xyz/entity/rfc-5869-hmac-based-extract-and-expand-key-derivation-function-hkdf-}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF) — https://4ort.xyz/entity/rfc-5869-hmac-based-extract-and-expand-key-derivation-function-hkdf- (retrieved 2026-05-03)

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