Cryptographic Message Syntax (CMS) Symmetric Key Package Content Type
RFC 6031
Internet Engineering Task Force (IETF) S. Turner
Request for Comments: 6031 IECA
Category: Standards Track R. Housley
ISSN: 2070-1721 Vigil Security
December 2010
Cryptographic Message Syntax (CMS) Symmetric Key Package Content Type
Abstract
This document defines the symmetric key format content type. It is
transport independent. The Cryptographic Message Syntax (CMS) can be
used to digitally sign, digest, authenticate, or encrypt this content
type.
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/rfc6031.
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.
Turner & Housley Standards Track [Page 1]
RFC 6031 CMS Symmetric Key Package Content Type December 2010
Table of Contents
1. Introduction...................................................3
1.1. Requirements Terminology..................................3
1.2. ASN.1 Syntax Notation.....................................3
2. Symmetric Key Package Content Type.............................3
3. PSKC Attributes................................................4
3.1. PSKC Key Package Attributes...............................5
3.1.1. Device Information Attributes........................5
3.1.2. Cryptographic Module Information Attributes..........8
3.2. PSKC Key Attributes.......................................8
3.2.1. Key Identifier.......................................8
3.2.2. Algorithm............................................9
3.2.3. Issuer...............................................9
3.2.4. Key Profile Identifier...............................9
3.2.5. Key Reference Identifier.............................9
3.2.6. Friendly Name.......................................10
3.2.7. Algorithm Parameters................................10
3.2.8. Counter.............................................12
3.2.9. Time................................................13
3.2.10. Time Interval......................................13
3.2.11. Time Drift.........................................13
3.2.12. Value MAC..........................................13
3.2.13. Key User Id........................................14
3.3. Key Policy Attributes....................................14
3.3.1. Key Start Date......................................14
3.3.2. Key Expiry Date.....................................15
3.3.3. Number of Transactions..............................15
3.3.4. Key Usage...........................................15
3.3.5. PIN Policy..........................................16
4. Key Encoding..................................................18
4.1. AES Key Encoding.........................................18
4.2. Triple-DES Key Encoding..................................18
5. Security Considerations.......................................19
6. IANA Considerations...........................................19
7. References....................................................19
7.1. Normative References.....................................19
7.2. Informative References...................................21
Appendix A. ASN.1 Module.........................................22
A.1. Symmetric Key Package ASN.1 Module.......................22
A.2. PSKC ASN.1 Module........................................23
Show full document text