Study of variable beam-forming antenna for wireless secret key agreement system

2013 Fiscal Year Final Research Report

• Project/Area Number: 23560452
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Toyohashi University of Technology
• Principal Investigator: OHIRA Takashi 豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (30395066)
• Co-Investigator(Kenkyū-buntansha): UEHARA Hideyuki 豊橋技術科学大学, 工学研究科, 教授 (00293754)
• Project Period (FY): 2011 – 2013
• Keywords: 可変指向性アンテナ / 電波ゆらぎ / 無線秘密鍵共有 / エスパアンテナ / 情報セキュリティ

Research Abstract

This study outputs four significant results.
(1) We proposed Reactance Domain Correlation (RDC) in order to enhance secrecy of wireless secret key agreement systems, and showed effectivity of RDC. (2) We clarified the relation between ESPAR antenna structure and the system secrecy by employing RDC. (3) We designed and prototyped a USB stick size ESPAR antenna for the system, and integrated the antenna, transceiver, USB interface, and system control unit on a printed circuit board. We implemented all of them to work in plug and play on a laptop PC. (4) The system generates and shares the secret key of 128 bits in length within 45 seconds on indoor environment.

Research Products

• [Journal Article] 無線秘密鍵生成共有方式の盗聴耐性を高める可変指向性アンテナ指向性多様性指標 (2013)
  • Author(s): 坂井尚貴,小田康明,ウリントヤ,上原秀幸,大平孝
  • Journal Title: 電子情報通信学会論文誌B Volume: Vol.J96-B, No.9 Pages: 936-944
  • URL: http://search.ieice.org/bin/summary.php?id=j96-b_9_936&category=B&year=2013&lang=J&abst=.
  • Peer Reviewed
• [Journal Article] 無線秘密鍵生成共有方式用USBスティック型エスパアンテナ (2013)
  • Author(s): 坂井尚貴,小田康明,ウリントヤ,上原秀幸,大平孝
  • Journal Title: 電子情報通信学会論文誌B Volume: Vol.J96-B, No.9 Pages: 1057-1066
  • URL: http://search.ieice.org/bin/summary.php?id=j96-b_9_1057&category=B&year=2013&lang=J&abst=.
  • Peer Reviewed
• [Presentation] Active Tapping Scheme to Wireless Secret Key Generator Employing Duplex Amplifying Repeater (2014)
  • Author(s): Yosuke Omori, Naoki Sakai, and Takashi Ohira
  • Organizer: Proc. 8th European Conference on Antennas and Propagation (EuCAP 2014)
  • Place of Presentation: Hague, The Netherlands
  • Year and Date: 20140406-11
• [Presentation] Imac Enhancement Exploiting the Eigen value of Radio Wave Fluctuation in Secret Key Agreement System (2013)
  • Author(s): Tadafumi Yoshida, Yosuke Omori, Naoki Sakai, Takashi Ohira
  • Organizer: 2013 Asia Pacific Radio Science Conference (APRASC'13)
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 20130903-07
• [Presentation] 無線秘密鍵生成共有方式の秘匿性を高める可変指向性アンテナ指向性多様性指標の提案 (2013)
  • Author(s): 坂井尚貴,小田康明,ウリントヤ,上原秀幸,大平孝
  • Organizer: アンテナ・伝搬研究会
  • Place of Presentation: 宮崎
  • Year and Date: 2013-01-15
• [Presentation] 無線秘密鍵共有方式において両端末ともにエスパアンテナを用いることによる盗聴耐性向上 (2012)
  • Author(s): 大森陽介,吉田斉史,坂井尚貴,上原秀幸,大平孝
  • Organizer: マイクロ波研究会
  • Place of Presentation: 栃木
  • Year and Date: 2012-10-18
• [Presentation] Impact of Direct Path Wave on Imac in Secret Key Agreement System Using ESPAR Antennas (2011)
  • Author(s): Tadafumi Yoshida, Takafumi Saito, Katsuhiro Fujiki, Kazumasa Uematsu, Hideyuki Uehara, and Takashi Ohira
  • Organizer: URSI General Assembly
  • Place of Presentation: Istanbul, Turkey(URSI-GA)
  • Year and Date: 20110813-20
• [Remarks] ①イノベーションジャパン2011に出展,東京国際フォーラム,2011年9月21日-22日.
• [Remarks] ②CEATEC 2011に出展,幕張メッセ,2011年10月4日-5日.
• [Remarks] ③Microwave Workshop and Exhibition 2011に出展,パシフィコ横浜,2011年11月30日-12月2日
• [Patent(Industrial Property Rights)] 管理局,無線秘密鍵管理システム及びその方法 (2011)
  • Inventor(s): 大平孝,坂井尚貴,藤木雄大,斎藤 隆史,吉田斉史
  • Industrial Property Rights Holder: 大平孝,坂井尚貴,藤木雄大,斎藤 隆史,吉田斉史
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2011-203862
  • Filing Date: 2011-09-16
  • Overseas