< draft-ietf-6lo-nfc-06.txt		draft-ietf-6lo-nfc-07.txt >
	6Lo Working Group Y-H. Choi		6Lo Working Group Y-H. Choi
	Internet-Draft Y-G. Hong		Internet-Draft Y-G. Hong
	Intended status: Standards Track ETRI		Intended status: Standards Track ETRI
	Expires: September 8, 2017 J-S. Youn		Expires: December 6, 2017 J-S. Youn
	Dongeui Univ		Dongeui Univ
	D-K. Kim		D-K. Kim
	KNU		KNU
	J-H. Choi		J-H. Choi
	Samsung Electronics Co.,		Samsung Electronics Co.,
	March 7, 2017		June 4, 2017
	Transmission of IPv6 Packets over Near Field Communication		Transmission of IPv6 Packets over Near Field Communication
	draft-ietf-6lo-nfc-06		draft-ietf-6lo-nfc-07
	Abstract		Abstract
	Near field communication (NFC) is a set of standards for smartphones		Near field communication (NFC) is a set of standards for smartphones
	and portable devices to establish radio communication with each other		and portable devices to establish radio communication with each other
	by touching them together or bringing them into proximity, usually no		by touching them together or bringing them into proximity, usually no
	more than 10 cm. NFC standards cover communications protocols and		more than 10 cm. NFC standards cover communications protocols and
	data exchange formats, and are based on existing radio-frequency		data exchange formats, and are based on existing radio-frequency
	identification (RFID) standards including ISO/IEC 14443 and FeliCa.		identification (RFID) standards including ISO/IEC 14443 and FeliCa.
	The standards include ISO/IEC 18092 and those defined by the NFC		The standards include ISO/IEC 18092 and those defined by the NFC
	skipping to change at page 1, line 46 ¶		skipping to change at page 1, line 46 ¶
	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 September 8, 2017.		This Internet-Draft will expire on December 6, 2017.
	Copyright Notice		Copyright Notice
	Copyright (c) 2017 IETF Trust and the persons identified as the		Copyright (c) 2017 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 8, line 43 ¶		skipping to change at page 8, line 43 ¶
	0 1 3 4 6		0 1 3 4 6
	0 6 2 8 3		0 6 2 8 3
	+----------------+----------------+----------------+-----------------+		+----------------+----------------+----------------+-----------------+
	|RRRRRRuRRRRRRRRR|RRRRRRRR11111111|11111110RRRRRRRR|RRRRRRRRRRRRRRRRR|		|RRRRRRuRRRRRRRRR|RRRRRRRR11111111|11111110RRRRRRRR|RRRRRRRRRRRRRRRRR|
	+----------------+----------------+----------------+-----------------+		+----------------+----------------+----------------+-----------------+
	Figure 3: Formation of IID from NFC-enabled device address		Figure 3: Formation of IID from NFC-enabled device address
	The 'R' bits are output values which MAY be created by mechanisms		The 'R' bits are output values which MAY be created by mechanisms
	like hash functions with input values, i.e., the SSAP and other		like hash functions with input values, i.e., the SSAP and other
	values (e.g., prefix) because the 6-bit address of SSAP is easy and		values (e.g., a prefix and a nonce) because the 6-bit address of SSAP
	short to be targeted by attacks of third party (e.g., address		is easy and short to be targeted by attacks of third party (e.g.,
	scanning). Figure 4 shows an example for IID creation. The F()		address scanning). Figure 4 shows an example for IID creation. The
	means a mechanism to make a output value for 64-bit IID, and an		F() means a mechanism to make a output value for 64-bit IID, and an
	parameter, "offset" is an example input value for making the		parameter, "nonce" is an example input value for making the different
	different output values.		output values.
	IID = F( SHA-256(6-bit SSAP, 64-bit Prefix), 'u' bit, offset )		IID = F( SHA-256(6-bit SSAP, 64-bit Prefix), 'u' bit, nonce )
	Figure 4: An example of an IID creation mechanism		Figure 4: An example of an IID creation mechanism
	In addition, the "Universal/Local" bit (i.e., the 'u' bit) of an NFC-		In addition, the "Universal/Local" bit (i.e., the 'u' bit) of an NFC-
	enabled device address MUST be set to 0 RFC 4291 [7].		enabled device address MUST be set to 0 RFC 4291 [7].
	4.4. IPv6 Link Local Address		4.4. IPv6 Link Local Address
	Only if the NFC-enabled device address is known to be a public		Only if the NFC-enabled device address is known to be a public
	address, the "Universal/Local" bit be set to 1. The IPv6 link-local		address, the "Universal/Local" bit be set to 1. The IPv6 link-local
	skipping to change at page 16, line 9 ¶		skipping to change at page 16, line 9 ¶
	9.2. Informative References		9.2. Informative References
	[12] "Near Field Communication - Interface and Protocol (NFCIP-		[12] "Near Field Communication - Interface and Protocol (NFCIP-
	1) 3rd Ed.", ECMA-340 , June 2013.		1) 3rd Ed.", ECMA-340 , June 2013.
	Authors' Addresses		Authors' Addresses
	Younghwan Choi		Younghwan Choi
	Electronics and Telecommunications Research Institute		Electronics and Telecommunications Research Institute
	218 Gajeongno, Yuseong		218 Gajeongno, Yuseung-gu
	Daejeon 305-700		Daejeon 34129
	Korea		Korea
	Phone: +82 42 860 1429		Phone: +82 42 860 1429
	Email: yhc@etri.re.kr		Email: yhc@etri.re.kr
	Yong-Geun Hong		Yong-Geun Hong
	Electronics and Telecommunications Research Institute		Electronics and Telecommunications Research Institute
	161 Gajeong-Dong Yuseung-Gu		161 Gajeong-Dong Yuseung-gu
	Daejeon 305-700		Daejeon 305-700
	Korea		Korea
	Phone: +82 42 860 6557		Phone: +82 42 860 6557
	Email: yghong@etri.re.kr		Email: yghong@etri.re.kr
	Joo-Sang Youn		Joo-Sang Youn
	DONG-EUI University		DONG-EUI University
	176 Eomgwangno Busan_jin_gu		176 Eomgwangno Busan_jin_gu
	Busan 614-714		Busan 614-714
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