{
  "draft": "draft-ietf-acme-dtnnodeid-18",
  "doc_id": "RFC9891",
  "title": "Automated Certificate Management Environment (ACME) Delay-Tolerant Networking (DTN) Node ID Validation Extension",
  "authors": [
    "B. Sipos"
  ],
  "format": [
    "XML",
    "TEXT",
    "HTML",
    "PDF"
  ],
  "page_count": "26",
  "pub_status": "EXPERIMENTAL",
  "status": "EXPERIMENTAL",
  "source": "Automated Certificate Management Environment",
  "abstract": "This document specifies an extension to the Automated Certificate Management Environment (ACME) protocol that allows an ACME server to validate the Delay-Tolerant Networking (DTN) Node ID for an ACME client.  A DTN Node ID is an identifier used in the Bundle Protocol (BP) to name a \"singleton endpoint\": an endpoint that is registered on a single BP Node.  The DTN Node ID is encoded both as a certificate Subject Alternative Name (SAN) identity of type otherName with an Other Name form of BundleEID and as an ACME Identifier type \"bundleEID\".",
  "pub_date": "November 2025",
  "keywords": [
    "ACME",
    "DTN"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC9891",
  "errata_url": null
}