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RFC 9811: Internet X.509 Public Key Infrastructure -- HTTP Transfer for the Certificate Management Protocol (CMP)

In plain English — editorial summary, not part of the RFC

This document describes how to layer the Certificate Management Protocol (CMP) over HTTP. It includes the updates to RFC 6712 specified in Section 3 of RFC 9480; these updates introduce CMP URIs using a well-known prefix. It obsoletes RFC 6712; and, together with RFC 9810, it also obsoletes RFC 9480.

Document record

Document ID
RFC9811
Published
July 2025
Authors
H. Brockhaus; D. von Oheimb; M. Ounsworth; J. Gray
Status
PROPOSED STANDARD
Stream
IETF
Area
sec
Pages
10
Also known as
—
Obsoletes:
RFC 6712, RFC 9480

Topics

Standards lineage

This document is one revision in a chain of 6 RFCs, each formally replacing the one before it.

  1. RFC 2510 (1999)
  2. RFC 4210 (2005)
  3. RFC 6712 (2012)
  4. RFC 9480 (2023)
  5. RFC 9810 (2025)
  6. RFC 9811 (2025)

Read the full history of Internet X.509 Public Key Infrastructure -- HTTP Transfer for the Certificate Management Protocol (CMP) →

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About this page

The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/9811-internet-x-509-public-key-infrastructure-http-transfer-for-the-certificate-manag