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New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIME
RFC 5911

Document type: RFC - Informational (June 2010; Errata)
Updated by RFC 6268
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

IETF State: (None)
Consensus: Unknown
Document shepherd: No shepherd assigned

IESG State: RFC 5911 (Informational)
Responsible AD: Tim Polk
Send notices to: smime-chairs@ietf.org, draft-ietf-smime-new-asn1@ietf.org

Internet Engineering Task Force (IETF)                        P. Hoffman
Request for Comments: 5911                                VPN Consortium
Category: Informational                                        J. Schaad
ISSN: 2070-1721                                  Soaring Hawk Consulting
                                                               June 2010

  New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIME

Abstract

   The Cryptographic Message Syntax (CMS) format, and many associated
   formats, are expressed using ASN.1.  The current ASN.1 modules
   conform to the 1988 version of ASN.1.  This document updates those
   ASN.1 modules to conform to the 2002 version of ASN.1.  There are no
   bits-on-the-wire changes to any of the formats; this is simply a
   change to the syntax.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see 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/rfc5911.

Hoffman & Schaad              Informational                     [Page 1]
RFC 5911              New ASN.1 for CMS and S/MIME             June 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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  Design Notes . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  ASN.1 Module AlgorithmInformation  . . . . . . . . . . . . . .  4
   3.  ASN.1 Module for RFC 3370  . . . . . . . . . . . . . . . . . . 14
   4.  ASN.1 Module for RFC 3565  . . . . . . . . . . . . . . . . . . 20
   5.  ASN.1 Module for RFC 3851  . . . . . . . . . . . . . . . . . . 22
   6.  ASN.1 Module for RFC 3852  . . . . . . . . . . . . . . . . . . 24
   7.  ASN.1 Module for RFC 4108  . . . . . . . . . . . . . . . . . . 34
   8.  ASN.1 Module for RFC 4998  . . . . . . . . . . . . . . . . . . 40
   9.  ASN.1 Module for RFC 5035  . . . . . . . . . . . . . . . . . . 41
   10. ASN.1 Module for RFC 5083  . . . . . . . . . . . . . . . . . . 47
   11. ASN.1 Module for RFC 5084  . . . . . . . . . . . . . . . . . . 48
   12. ASN.1 Module for RFC 5275  . . . . . . . . . . . . . . . . . . 50
   13. Security Considerations  . . . . . . . . . . . . . . . . . . . 57
   14. Normative References . . . . . . . . . . . . . . . . . . . . . 57

Hoffman & Schaad              Informational                     [Page 2]
RFC 5911              New ASN.1 for CMS and S/MIME             June 2010

1.  Introduction

   Some developers would like the IETF to use the latest version of
   ASN.1 in its standards.  Most of the RFCs that relate to security
   protocols still use ASN.1 from the 1988 standard, which has been
   deprecated.  This is particularly true for the standards that relate
   to PKIX, CMS, and S/MIME.

   This document updates the following RFCs to use ASN.1 modules that
   conform to the 2002 version of ASN.1 [ASN1-2002].  Note that not all

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