Suite B in Secure/Multipurpose Internet Mail Extensions (S/MIME)
RFC 6318
| Document | Type |
RFC - Informational
(June 2011; No errata)
Obsoletes RFC 5008
Was draft-housley-rfc5008bis (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 6318 (Informational) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Sean Turner | ||
| IESG note | Russ Housley (housley@vigilsec.com) is the document shepherd. | ||
| Send notices to | (None) | ||
Internet Engineering Task Force (IETF) R. Housley
Request for Comments: 6318 Vigil Security
Obsoletes: 5008 J. Solinas
Category: Informational National Security Agency
ISSN: 2070-1721 June 2011
Suite B in Secure/Multipurpose Internet Mail Extensions (S/MIME)
Abstract
This document specifies the conventions for using the United States
National Security Agency's Suite B algorithms in Secure/Multipurpose
Internet Mail Extensions (S/MIME) as specified in RFC 5751. This
document obsoletes RFC 5008.
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/rfc6318.
Housley & Solinas Informational [Page 1]
RFC 6318 Suite B in S/MIME June 2011
Copyright Notice
Copyright (c) 2011 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. Terminology ................................................4
1.2. ASN.1 ......................................................4
1.3. Suite B Security Levels ....................................4
2. SHA-256 and SHA-384 Message Digest Algorithms ...................5
3. ECDSA Signature Algorithm .......................................6
4. Key Management ..................................................7
4.1. ECDH Key Agreement Algorithm ...............................7
4.2. AES Key Wrap ...............................................8
4.3. Key Derivation Functions ...................................9
5. AES CBC Content Encryption .....................................11
6. Security Considerations ........................................12
7. References .....................................................13
7.1. Normative References ......................................13
7.2. Informative References ....................................14
Housley & Solinas Informational [Page 2]
RFC 6318 Suite B in S/MIME June 2011
1. Introduction
The Fact Sheet on National Security Agency (NSA) Suite B Cryptography
[NSA] states:
A Cryptographic Interoperability Strategy (CIS) was developed to
find ways to increase assured rapid sharing of information both
within the U.S. and between the U.S. and her partners through the
use of a common suite of public standards, protocols, algorithms
and modes referred to as the "Secure Sharing Suite" or S.3. The
implementation of CIS will facilitate the development of a broader
range of secure cryptographic products which will be available to
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