{
  "draft": "draft-ietf-lamps-private-key-stmt-attr-09",
  "doc_id": "RFC9883",
  "title": "An Attribute for Statement of Possession of a Private Key",
  "authors": [
    "R. Housley"
  ],
  "format": [
    "XML",
    "TEXT",
    "HTML",
    "PDF"
  ],
  "page_count": "17",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Limited Additional Mechanisms for PKIX and SMIME",
  "abstract": "This document specifies an attribute for a statement of possession of a private key by a certificate subject.  As part of X.509 certificate enrollment, a Certification Authority (CA) typically demands proof that the subject possesses the private key that corresponds to the to-be-certified public key.  In some cases, a CA might accept a signed statement from the certificate subject.  For example, when a certificate subject needs separate certificates for signature and key establishment, a statement that can be validated with the previously issued signature certificate for the same subject might be adequate for subsequent issuance of the key establishment certificate.",
  "pub_date": "October 2025",
  "keywords": [
    "PKCS#10"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC9883",
  "errata_url": "https://www.rfc-editor.org/errata/rfc9883"
}