< draft-avt-kanno-srtp-camellia-01.txt		draft-avt-kanno-srtp-camellia-02.txt >
	Network Working Group S. Kanno		Network Working Group S. Kanno
	Internet-Draft NTT Software Corporation		Internet-Draft NTT Software Corporation
	Intended status: Standards Track M. Kanda		Intended status: Standards Track M. Kanda
	Expires: July 8, 2010 NTT		Expires: September 27, 2010 NTT
	January 4, 2010		March 26, 2010
	The Camellia Algorithm and Its Use wiht the Secure Real-time Transport		The Camellia Algorithm and Its Use with the Secure Real-time Transport
	Protocol(SRTP)		Protocol(SRTP)
	draft-avt-kanno-srtp-camellia-01		draft-avt-kanno-srtp-camellia-02
	Abstract		Abstract
	This document describes the use of the Camellia block cipher		This document describes the use of the Camellia block cipher
	algorithm in the Secure Real-time Transport Protocol (SRTP) for		algorithm in the Secure Real-time Transport Protocol (SRTP) for
	providing confidentiality for the Real-time Transport Protocol (RTP)		providing confidentiality for the Real-time Transport Protocol (RTP)
	traffic and for the control traffic for RTP, the Real-time Transport		traffic and for the control traffic for RTP, the Real-time Transport
	Control Protocol (RTCP).		Control Protocol (RTCP).
	Status of this Memo		Status of this Memo
	skipping to change at page 1, line 42 ¶		skipping to change at page 1, line 42 ¶
	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."
	The list of current Internet-Drafts can be accessed at		The list of current Internet-Drafts can be accessed at
	http://www.ietf.org/ietf/1id-abstracts.txt.		http://www.ietf.org/ietf/1id-abstracts.txt.
	The list of Internet-Draft Shadow Directories can be accessed at		The list of Internet-Draft Shadow Directories can be accessed at
	http://www.ietf.org/shadow.html.		http://www.ietf.org/shadow.html.
	This Internet-Draft will expire on July 8, 2010.		This Internet-Draft will expire on September 27, 2010.
	Copyright Notice		Copyright Notice
	Copyright (c) 2010 IETF Trust and the persons identified as the		Copyright (c) 2010 IETF Trust and the persons identified as the
	document authors. All rights reserved.		document authors. All rights reserved.
	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
	skipping to change at page 4, line 7 ¶		skipping to change at page 4, line 7 ¶
	man.-to-impl. default		man.-to-impl. default
	encryption Camellia-CTR Camellia-CTR		encryption Camellia-CTR Camellia-CTR
	message integrity HMAC-SHA1 HMAC-SHA1		message integrity HMAC-SHA1 HMAC-SHA1
	key derivation (PRF) Camellia-CTR Camellia-CTR		key derivation (PRF) Camellia-CTR Camellia-CTR
	Table 1: Mandatory-to-implement and default transforms in SRTP and		Table 1: Mandatory-to-implement and default transforms in SRTP and
	SRTCP.		SRTCP.
	4. Security Considerations		4. Security Considerations
	At the time of writing this document, there are no known weak keys		At the time of writing this document there are no known weak keys for
	for Camellia. Also, No security problem has been found on Camellia.		Camellia. And no security problem has been found on Camellia (see
	Camellia is secure against all known attacks including Differential		[NESSIE], [CRYPTREC], and [LNCS]).
	cryptanalysis, linear cryptanalysis, and related key attacks.
	The security considerations in RFC 5289 [RFC3711] apply to this		The security considerations in RFC 5289 [RFC3711] apply to this
	document as well.		document as well.
	5. IANA Considerations		5. IANA Considerations
	RFC 4568 [RFC4568] defines SRTP "crypto suites"; In order to allow		RFC 4568 [RFC4568] defines SRTP "crypto suites"; In order to allow
	SDP to signal the use of the algorithms defined in this document,		SDP to signal the use of the algorithms defined in this document,
	IANA will register the following crypto suites into the subregistry		IANA will register the following crypto suites into the subregistry
	for SRTP crypto suites under the SRTP transport of the SDP Security		for SRTP crypto suites under the SRTP transport of the SDP Security
	skipping to change at page 6, line 50 ¶		skipping to change at page 6, line 50 ¶
	Encryption Standard (AES)", FIPS PUB 197, November 2001, <		Encryption Standard (AES)", FIPS PUB 197, November 2001, <
	http://csrc.nist.gov/publications/fips/fips197/		http://csrc.nist.gov/publications/fips/fips197/
	fips-197.pdf>.		fips-197.pdf>.
	[ISO/IEC 18033-3]		[ISO/IEC 18033-3]
	International Organization for Standardization,		International Organization for Standardization,
	"Information technology - Security techniques - Encryption		"Information technology - Security techniques - Encryption
	algorithms - Part 3: Block ciphers", ISO/IEC 18033-3,		algorithms - Part 3: Block ciphers", ISO/IEC 18033-3,
	July 2005.		July 2005.
			[LNCS] Mala, H., Shakiba, M., and M. Dakhil-alian, "New Results
			on Impossible Differential Cryptanalysis of Reduced Round
			Camellia-128", November 2009,
			<http://www.springerlink.com/content/e55783u422436g77/>.
	[NESSIE] "The NESSIE project (New European Schemes for Signatures,		[NESSIE] "The NESSIE project (New European Schemes for Signatures,
	Integrity and Encryption)",		Integrity and Encryption)",
	<http://www.cosic.esat.kuleuven.ac.be/nessie/>.		<http://www.cosic.esat.kuleuven.ac.be/nessie/>.
	[RFC3657] Moriai, S. and A. Kato, "Use of the Camellia Encryption		[RFC3657] Moriai, S. and A. Kato, "Use of the Camellia Encryption
	Algorithm in Cryptographic Message Syntax (CMS)",		Algorithm in Cryptographic Message Syntax (CMS)",
	RFC 3657, January 2004.		RFC 3657, January 2004.
	[RFC4051] Eastlake, D., "Additional XML Security Uniform Resource		[RFC4051] Eastlake, D., "Additional XML Security Uniform Resource
	Identifiers (URIs)", RFC 4051, April 2005.		Identifiers (URIs)", RFC 4051, April 2005.
End of changes. 6 change blocks.
	9 lines changed or deleted		13 lines changed or added
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