{"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":["HTML","TEXT","PDF","XML"],"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\r\na private key by a certificate subject.  As part of X.509 certificate\r\nenrollment, a Certification Authority (CA) typically demands proof\r\nthat the subject possesses the private key that corresponds to the\r\nto-be-certified public key.  In some cases, a CA might accept a\r\nsigned statement from the certificate subject.  For example, when a\r\ncertificate subject needs separate certificates for signature and key\r\nestablishment, a statement that can be validated with the previously\r\nissued signature certificate for the same subject might be adequate\r\nfor 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":null}