Asymmetric Key Packages
RFC 5958
| Document | Type |
RFC - Proposed Standard
(August 2010; Errata)
Obsoletes RFC 5208
Was draft-turner-asymmetrickeyformat (individual in sec area)
|
|
|---|---|---|---|
| Last updated | 2020-01-21 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized with errata bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 5958 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Tim Polk | ||
| Send notices to | fluffy@cisco.com, cwallace@cygnacom.com | ||
Internet Engineering Task Force (IETF) S. Turner
Request for Comments: 5958 IECA
Obsoletes: 5208 August 2010
Category: Standards Track
ISSN: 2070-1721
Asymmetric Key Packages
Abstract
This document defines the syntax for private-key information and a
content type for it. Private-key information includes a private key
for a specified public-key algorithm and a set of attributes. The
Cryptographic Message Syntax (CMS), as defined in RFC 5652, can be
used to digitally sign, digest, authenticate, or encrypt the
asymmetric key format content type. This document obsoletes RFC
5208.
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/rfc5958.
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 Standards Track [Page 1]
RFC 5958 Asymmetric Key Packages August 2010
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.
1. Introduction
This document defines the syntax for private-key information and a
Cryptographic Message Syntax (CMS) [RFC5652] content type for it.
Private-key information includes a private key for a specified
public-key algorithm and a set of attributes. The CMS can be used to
digitally sign, digest, authenticate, or encrypt the asymmetric key
format content type. This document obsoletes PKCS #8 v1.2 [RFC5208].
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 [RFC2119].
1.2. ASN.1 Syntax Notation
The key package is defined using ASN.1 [X.680], [X.681], [X.682], and
[X.683].
1.3. Summary of Updates to RFC 5208
The following summarizes the updates to [RFC5208]:
- Changed the name "PrivateKeyInfo" to "OneAsymmetricKey". This
reflects the addition of the publicKey field to allow both parts of
the asymmetric key to be conveyed separately. Not all algorithms
will use both fields; however, the publicKey field was added for
completeness.
- Defined Asymmetric Key Package CMS content type.
- Removed redundant IMPLICIT from attributes.
- Added publicKey to OneAsymmetricKey and updated the version number.
Turner Standards Track [Page 2]
RFC 5958 Asymmetric Key Packages August 2010
- Added that PKCS #9 attributes may be supported.
- Added discussion of compatibility with other private-key formats.
- Added requirements for encoding rule set.
- Changed imports from PKCS #5 to [RFC5912] and [RFC5911].
- Replaced ALGORITHM-IDENTIFIER with ALGORITHM from [RFC5912].
- Registers application/pkcs8 media type and .p8 file extension.
2. Asymmetric Key Package CMS Content Type
The asymmetric key package CMS content type is used to transfer one
or more plaintext asymmetric keys from one party to another. An
asymmetric key package MAY be encapsulated in one or more CMS
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