< draft-turner-ekpct-algs-update-02.txt		draft-turner-ekpct-algs-update-03.txt >
	Network Working Group S. Turner		Network Working Group S. Turner
	Internet-Draft IECA		Internet-Draft IECA
	Updates: 6033 (once approved) December 22, 2010		Updates: 6033 (once approved) February 11, 2011
	Intended status: Standards Track		Intended status: Standards Track
	Expires: June 22, 2011		Expires: August 10, 2011
	Elliptic Curve Algorithms for Cryptographic Message Syntax (CMS)		Elliptic Curve Algorithms for Cryptographic Message Syntax (CMS)
	Encrypted Key Package Content Type		Encrypted Key Package Content Type
	draft-turner-ekpct-algs-update-02.txt		draft-turner-ekpct-algs-update-03.txt
	Abstract		Abstract
	This document describes the conventions for using several Elliptic		This document describes the conventions for using several Elliptic
	Curve cryptographic algorithms with the Cryptographic Message Syntax		Curve cryptographic algorithms with the Cryptographic Message Syntax
	(CMS) encrypted key package content type. Specifically, it includes		(CMS) encrypted key package content type. Specifically, it includes
	conventions necessary to implement Elliptic Curve Diffie-Hellman		conventions necessary to implement Elliptic Curve Diffie-Hellman
	(ECDH) with EnvelopedData and Elliptic Curve Digital Signature		(ECDH) with EnvelopedData and Elliptic Curve Digital Signature
	Algorithm (ECDSA) with SignedData. This document extends RFC 6033.		Algorithm (ECDSA) with SignedData. This document extends RFC 6033.
	skipping to change at page 1, line 37 ¶		skipping to change at page 1, line 37 ¶
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF). Note that other groups may also distribute		Task Force (IETF). Note that other groups may also distribute
	working documents as Internet-Drafts. The list of current Internet-		working documents as Internet-Drafts. The list of current Internet-
	Drafts is at http://datatracker.ietf.org/drafts/current/.		Drafts is at http://datatracker.ietf.org/drafts/current/.
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	This Internet-Draft will expire on June 22, 2010.		This Internet-Draft will expire on August 10, 2011.
	Copyright Notice		Copyright Notice
	Copyright (c) 2010 IETF Trust and the persons identified as the		Copyright (c) 2011 IETF Trust and the persons identified as the
	document authors. All rights reserved.		document authors. All rights reserved.
			Internet-DraftEC Algorithms for CMS Encrypted Key Packages 2011-02-11
	This document is subject to BCP 78 and the IETF Trust's Legal		This document is subject to BCP 78 and the IETF Trust's Legal
	Provisions Relating to IETF Documents		Provisions Relating to IETF Documents
	(http://trustee.ietf.org/license-info) in effect on the date of		(http://trustee.ietf.org/license-info) in effect on the date of
	publication of this document. Please review these documents		publication of this document. Please review these documents
	Internet-DraftEC Algorithms for CMS Encrypted Key Packages 2010-12-22
	carefully, as they describe your rights and restrictions with respect		carefully, as they describe your rights and restrictions with respect
	to this document. Code Components extracted from this document must		to this document. Code Components extracted from this document must
	include Simplified BSD License text as described in Section 4.e of		include Simplified BSD License text as described in Section 4.e of
	the Trust Legal Provisions and are provided without warranty as		the Trust Legal Provisions and are provided without warranty as
	described in the Simplified BSD License.		described in the Simplified BSD License.
	1. Introduction		1. Introduction
	This document describes the conventions for using Elliptic Curve		This document describes the conventions for using Elliptic Curve
	cryptographic algorithms with the Cryptographic Message Syntax (CMS)		cryptographic algorithms with the Cryptographic Message Syntax (CMS)
	skipping to change at page 2, line 36 ¶		skipping to change at page 2, line 40 ¶
	1.1 Terminology		1.1 Terminology
	The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",		The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
	"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and		"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
	"OPTIONAL" in this document are to be interpreted as described in		"OPTIONAL" in this document are to be interpreted as described in
	[RFC2119].		[RFC2119].
	2. EnvelopedData		2. EnvelopedData
	When key agreement is used, standard (as opposed to co-factor) ECDH		When key agreement is used, standard (as opposed to co-factor) ECDH
	[I-D.mcgrew-fundamental-ecc] MAY be supported.		[RFC6090][RFC5753] MAY be supported.
	3. SignedData		3. SignedData
	If an implementation encapsulates an EncryptedKeyPacakge with a		If an implementation encapsulates an EncryptedKeyPackage with a
	SignedData [RFC5652], then it MAY support the signature scheme ECDSA		SignedData [RFC5652], then it MAY support the signature scheme ECDSA
	[I-D.mcgrew-fundamental-ecc].		[RFC6090][RFC5753].
	4. Public Key Sizes		4. Public Key Sizes
	The easiest way to implement the SignedData and EnvelopedData is with		The easiest way to implement the SignedData and EnvelopedData is with
	public key certificates [RFC5280][RFC5480]. If an implementation		public key certificates [RFC5280][RFC5480]. If an implementation
	supports ECDSA or ECDH, then it MUST support keys on the P-256 curve.		supports ECDSA or ECDH, then it MUST support keys on the P-256 curve.
			Internet-DraftEC Algorithms for CMS Encrypted Key Packages 2011-02-11
	5. Security Considerations		5. Security Considerations
	The security considerations from [RFC5280], [RFC5480], [RFC5652],		The security considerations from [RFC5280], [RFC5480], [RFC5652],
	[RFC5753], [RFC6033], and [I D.mcgrew-fundamental-ecc] apply.		[RFC5753], [RFC6033], and [RFC6090] apply.
	Internet-DraftEC Algorithms for CMS Encrypted Key Packages 2010-12-22
	6. IANA Considerations		6. IANA Considerations
	None. Please remove this section prior to publication as an RFC.		None. Please remove this section prior to publication as an RFC.
	7. References		7. References
	7.1. Normative References		7.1. Normative References
	[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate		[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
	skipping to change at page 3, line 42 ¶		skipping to change at page 3, line 47 ¶
	Syntax (CMS)", RFC 5753, January 2010.		Syntax (CMS)", RFC 5753, January 2010.
	[RFC6032] Turner, S., and R. Housley, "Cryptographic Message Syntax		[RFC6032] Turner, S., and R. Housley, "Cryptographic Message Syntax
	(CMS) Encrypted Key Package Content Type", RFC 6032,		(CMS) Encrypted Key Package Content Type", RFC 6032,
	December 2010.		December 2010.
	[RFC6033] Turner, S., "Algorithms for Cryptographic Message Syntax		[RFC6033] Turner, S., "Algorithms for Cryptographic Message Syntax
	(CMS) Encrypted Key Package Content Type", RFC 6033,		(CMS) Encrypted Key Package Content Type", RFC 6033,
	December 2010.		December 2010.
	[I-D.mcgrew-fundamental-ecc] McGrew, D., Igoe, E., and M. Salter,		[RFC6090] McGrew, D., Igoe, E., and M. Salter, "Fundamental Elliptic
	"Fundamental Elliptic Curve Cryptography Algorithms",		Curve Cryptography Algorithms", RFC 6090, February 2011.
	draft-mcgrew-fundamental-ecc-04.txt, work-in-progress.
	7.2. Informative References		7.2. Informative References
	None.		None.
	Internet-DraftEC Algorithms for CMS Encrypted Key Packages 2010-12-22		Internet-DraftEC Algorithms for CMS Encrypted Key Packages 2011-02-11
	Authors' Addresses		Authors' Addresses
	Sean Turner		Sean Turner
	IECA, Inc.		IECA, Inc.
	3057 Nutley Street, Suite 106		3057 Nutley Street, Suite 106
	Fairfax, VA 22031		Fairfax, VA 22031
	USA		USA
	EMail: turners@ieca.com		EMail: turners@ieca.com
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