RFC9709 · Encryption Key Derivation in the Cryptographic Message Syntax (CMS) Using HKDF with SHA-256

{
  "id": "RFC9709",
  "number": 9709,
  "title_en": "Encryption Key Derivation in the Cryptographic Message Syntax (CMS) Using HKDF with SHA-256",
  "title_ru": "",
  "summary_ru": "",
  "purpose_ru": "",
  "use_ru": "",
  "full_translation_path": "",
  "full_translation_checked_at": "",
  "full_translation_source_sha256": "",
  "architect_note_ru": "",
  "topics_ru": [],
  "translation_state": "not_prepared",
  "verification_level": "not_prepared",
  "verification_level_ru": "Русская выжимка не подготовлена",
  "verification_note_ru": "",
  "abstract_en": "This document specifies the derivation of the content-encryption key or the content-authenticated-encryption key in the Cryptographic Message Syntax (CMS) using the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) with SHA-256. The use of this mechanism provides protection against an attacker that manipulates the content-encryption algorithm identifier or the content-authenticated-encryption algorithm identifier.",
  "authors": [
    "R. Housley"
  ],
  "organizations": [],
  "publication_date": "2025-01-01",
  "current_status": "PROPOSED STANDARD",
  "current_status_ru": "Предлагаемый стандарт",
  "publication_status": "PROPOSED STANDARD",
  "publication_status_ru": "Предлагаемый стандарт",
  "lifecycle": "active",
  "lifecycle_ru": "Действующий",
  "stream": "IETF",
  "stream_ru": "IETF",
  "area": "sec",
  "area_ru": "Безопасность",
  "working_group": "lamps",
  "source_draft": "draft-ietf-lamps-cms-cek-hkdf-sha256-05",
  "page_count": 13,
  "doi": "10.17487/RFC9709",
  "keywords": [
    "content-encryption key",
    "content-authenticated-encryption key"
  ],
  "formats": [
    "HTML",
    "TXT",
    "PDF",
    "XML"
  ],
  "relations": {
    "obsoletes": [],
    "obsoleted_by": [],
    "updates": [],
    "updated_by": [],
    "is_also": [],
    "see_also": []
  },
  "links": {
    "info": "https://www.rfc-editor.org/info/rfc9709/",
    "html": "https://www.rfc-editor.org/rfc/rfc9709.html",
    "txt": "https://www.rfc-editor.org/rfc/rfc9709.txt",
    "datatracker": "https://datatracker.ietf.org/doc/rfc9709/"
  }
}