An Example Idea of FIA Authors: Date: May 2010 Name Company

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Presentation transcript:

An Example Idea of FIA Authors: Date: 2010-05-20 May 2010 Name Company 2018/11/12 May 2010 An Example Idea of FIA Authors: Date: 2010-05-20 Name Company Address Phone email Hitoshi MORIOKA ROOT Inc. #33 Ito Bldg. 2-14-38 Tenjin, Chuo-ku, Fukuoka 810-0001 JAPAN +81-92-771-7630 hmorioka@root-hq.com Hiroshi MANO 8F TOC2 Bldg. 7-21-11 Nishi-Gotanda, Shinagawa-ku, Tokyo 141-0031 JAPAN +81-3-5719-7630 hmano@root-hq.com Paul A Lambert Marvell Marvel lane, MS 2-201 Santa Clara, CA 95054 +1-408-222-9522 paul@marvell.com Marc Emmelmann TU Berlin Einsteinufer 25 10587 Berlin Germany +49-30-314 24580 emmelmann@ieee.org Hiroki Nakano Trans New Technology Sumitomo-Seimei Kyoto Bldg. 8F, 62 Tukiboko-cho Shimogyo-ku, Kyoto 600-8492 JAPAN +81-75-213-1200 cas.nakano@gmail.com cas@trans-nt.com Mineo Takai Space Time Engineering 609 Deep Valley Drive, Suite 200　Rolling Hills Estates, CA 90274, USA +1-310-265-4441 mineo@ieee.org Hitoshi Morioka, ROOT INC. Hiroshi Mano, ROOT Inc.

Use Case Scenario Walk May 2010 2018/11/12 May 2010 Use Case Scenario Large number of STAs are constantly entering and exiting the coverage area of an AP within an existing ESS at pedestrian speed. Every STA passes through the coverage area in a short time. The authentication process specified by IEEE 802.11 limits STAs to fully exploit the system capacity  A faster initial authentication is needed FIA aims at amending IEEE 802.11 with a fast initial authentication mechanisms which Scales with … Supports a very …. Securely ….. (a,b,c from PAR 5.5( Walk Hitoshi Morioka, ROOT INC. Hiroshi Mano, ROOT Inc.

Sequence of Establishing Connection May 2010 Sequence of Establishing Connection Discover an appropriate AP Channel Scanning, Probe, IEEE 802.11u… WLAN association Authentication, Association… Upper layer setup DHCP… Out of scope: It’s sufficient by current IEEE 802.11 specification Our scope Out of scope: It’s out of scope of IEEE 802.11 Hitoshi Morioka, ROOT INC.

November 2005 doc.: IEEE 802.11-05/1859r0 May 2010 Protocol Sequence to Establish a Connection to the Internet by IEEE802.11i ( PEAP/EAP-MSCHAPv2) and DHCP STA AP 14 round trip 2ms/oneway: 56ms RADIUS Probe Authentication 11 round trip 5ms/oneway: 110ms Association PEAP /EAP-MSCAPv2 (11 round trip) Details are out of scope. We’ll make only a Framework and liaison to IETF DHCP (2 round trip) DHCP Server Hitoshi Morioka, ROOT INC. Page 4 Hitoshi MORIOKA, ROOT Inc.

How to solve the issues May 2010 Transmit Rate 1Mbps (DSSS) 6Mbps (OFDM) DIFS 50us 34us CW Min 620us (ave. 310us) 135us (ave. 67us) CW Max 20,460us 9,207us Preamble Length 144us 16us PLCP Header 48us 4us MAC Header 256us 43us FCS 32us 5us SIFS 10us Ack 304us 39us Overhead 1,154us 224us Data (100byte) 800us 133us Each management frames needs overhead such as preamble, IFS, headers, ACK, etc… 60% of air-time is consumed by the overhead for each frame. Reducing overhead is difficult because of coexistence with legacy system. Reducing number of frame exchanges is effective. Preamble FCS CW Ack Data DIFS SIFS PLCP Header MAC Header Hitoshi Morioka, ROOT INC.

Protocol Sequence to Establish a Connection to the Internet by FIA May 2010 Protocol Sequence to Establish a Connection to the Internet by FIA STA AP RADIUS 1.5 round trip 2ms/oneway: 6ms 1 round trip 5ms/oneway: 10ms Beacon FIA Connection established (Includes some parts of upper layer setup such as IP address, gateway, DNS…) FIA functions Authentication Key exchange Upper layer information delivery in one round trip time. Technical details were presented and discussed in WNG SC. (10/361r1) Hitoshi Morioka, ROOT INC.

May 2010 Feasibility An example FIA protocol was evaluated and compared with IEEE 802.11i by security experts. Yoshiaki Hori, Kouichi Sakurai, “Proceedings of the 3rd international conference on Mobile technology, applications & systems,” Proceedings of the 3rd international conference on Mobile technology, applications & systems, 2006, ISBN:1-59593-519-3 http://portal.acm.org/citation.cfm?id=1292344 Hitoshi Morioka, ROOT INC.

Summary Technical feasibility has been shown. May 2010 Summary Technical feasibility has been shown. An example protocol was reviewed by external security experts (Prof. Kouichi Sakurai., Prof. Yoshiaki Hori in Kyushu Univ.) active participants in IEEE 802.11i. Hitoshi Morioka, ROOT INC.

Questions & Comments May 2010 2018/11/12 Hitoshi Morioka, ROOT INC. Hiroshi Mano, ROOT Inc.