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
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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
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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
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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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