Additional Cryptographic Message Syntax (CMS) Revocation Information Choices
RFC 5940
| Document | Type |
RFC - Proposed Standard
(August 2010; Errata)
Was draft-turner-additional-cms-ri-choices (individual in sec area)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 5940 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Tim Polk | ||
| Send notices to | (None) | ||
Internet Engineering Task Force (IETF) S. Turner
Request for Comments: 5940 IECA
Category: Standards Track R. Housley
ISSN: 2070-1721 Vigil Security
August 2010
Additional Cryptographic Message Syntax (CMS)
Revocation Information Choices
Abstract
The Cryptographic Message Syntax (CMS) allows revocation information
to be conveyed as part of the SignedData, EnvelopedData,
AuthenticatedData, and AuthEnvelopedData content types. The
preferred format for revocation information is the Certificate
Revocation List (CRL), but an extension mechanism supports other
revocation information formats. This document defines two additional
revocation information formats for Online Certificate Status Protocol
(OCSP) responses and Server-Based Certificate Validation Protocol
(SCVP) requests and responses.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc5940.
Turner & Housley Standards Track [Page 1]
RFC 5940 Additional CMS Revocation Information Choices August 2010
Copyright Notice
Copyright (c) 2010 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
1. Introduction
The RevocationInfoChoices type defined in [CMS] provides a set of
revocation status information alternatives, which allows revocation
information to be conveyed as part of the SignedData, EnvelopedData,
AuthenticatedData, and AuthEnvelopedData content types. The intent
is to provide information sufficient to determine whether the
certificates and attribute certificates carried elsewhere in the CMS-
protected content have been revoked. There may be more revocation
status information than necessary or there may be less revocation
status information than necessary.
X.509 Certificate Revocation Lists (CRLs) [PROFILE] are the primary
source of revocation status information, but any other revocation
information format can be supported. This document specifies two
other formats: Online Certificate Status Protocol (OCSP) responses
[OCSP] and Server-Based Certificate Validation Protocol (SCVP)
requests and responses [SCVP].
Section 2 discusses the RevocationInformation structure. Section 3
defines a mechanism to carry OCSP responses. Section 4 defines a
mechanism to carry SCVP requests and responses. Appendix A provides
the normative ASN.1 syntax for the two mechanisms.
1.1. Requirements Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [WORDS].
Turner & Housley Standards Track [Page 2]
RFC 5940 Additional CMS Revocation Information Choices August 2010
2. Revocation Information
For convenience, the ASN.1 definition of the RevocationInfoChoices
type from [CMS] is repeated here:
RevocationInfoChoices ::= SET OF RevocationInfoChoice
RevocationInfoChoice ::= CHOICE {
crl CertificateList,
other [1] IMPLICIT OtherRevocationInfoFormat }
OtherRevocationInfoFormat ::= SEQUENCE {
otherRevInfoFormat OBJECT IDENTIFIER,
otherRevInfo ANY DEFINED BY otherRevInfoFormat }
The other CHOICE MUST be used to convey OCSP responses, SCVP
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