The PKIX (Public Key Infrastructure using X.509) Working Group of the
has defined a number of certificate management protocols. These
protocols are primarily focused on X.509v3 public key certificates.
However, it is sometimes desirable to manage certificates in
alternative formats as well. This document specifies how such
certificates may be requested using the CRMF (Certificate Request
Message Format) syntax that is used by several different protocols.
It also explains how alternative certificate formats may be
incorporated into such popular protocols as PKIX-CMP (PKIX Certificate
Management Protocol) and CMC (Certificate Management Messages over
This document was reviewed by Russ Housley for the IESG.
This document is not a candidate for any level of Internet
Standard. The IETF disclaims any knowledge of the fitness of this
document for any purpose, and in particular notes that it has not
had IETF review for such things as security, congestion control or
inappropriate interaction with deployed protocols. The RFC Editor
has chosen to publish this document at its discretion. Readers of
this document should exercise caution in evaluating its value for
implementation and deployment.