{
  "draft": "draft-irtf-cfrg-re-keying-17",
  "doc_id": "RFC8645",
  "title": "Re-keying Mechanisms for Symmetric Keys",
  "authors": [
    "S. Smyshlyaev, Ed."
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "69",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "Crypto Forum",
  "abstract": "A certain maximum amount of data can be safely encrypted when encryption is performed under a single key. This amount is called the \"key lifetime\". This specification describes a variety of methods for increasing the lifetime of symmetric keys. It provides two types of re-keying mechanisms based on hash functions and block ciphers that can be used with modes of operations such as CTR, GCM, CBC, CFB, and OMAC.\n\n This document is a product of the Crypto Forum Research Group (CFRG) in the IRTF.",
  "pub_date": "August 2019",
  "keywords": [
    "re-keying",
    "key",
    "key lifetime",
    "encryption mode",
    "mode of operation"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC8645",
  "errata_url": null
}