Study on Disruption- and Disaster-tolerant, Resilient Identity Federation Infrastructure for Large-scale Wireless LAN

2021 Fiscal Year Final Research Report

• Project/Area Number: 19H04090
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 60060:Information network-related
• Research Institution: Tohoku University
• Principal Investigator: Goto Hideaki 東北大学, サイバーサイエンスセンター, 准教授 (40271879)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 認証連携 / 次世代ホットスポット / 公衆無線LAN / 耐災害ネットワーク / eduroam / 利用者認証 / 機内無線LAN

Outline of Final Research Achievements

The user authentication process in the current public wireless LAN (WLAN) is dependent on always-on connection to the wide-area network. Network disruptions often lead to service interruptions even in local network use. We looked into a roaming environment in which many telecom operators provide mutual use of WLANs and have developed a new system that enables stable user authentication even during temporary/partial network disruptions. We have developed a certificate-based local authentication method that works in a large-scale roaming environment and also its operation method. The system works even when the back-haul network is disrupted in a disaster affected area, and enables various local services. The system is also useful in in-flight WLAN services.

Free Research Field

情報セキュリティ

Academic Significance and Societal Importance of the Research Achievements

大規模災害における被災地や、航空機内の無線LANなど、ネットワークの分断がやむを得ない状況においても、安定かつ安全な利用者認証を実現する技術を開発した。これにより、公衆無線LANに限定されず、様々な情報システムの耐災害性・耐障害性の向上に役立つ学術的な枠組みを与えた。安全性と利便性に優れた公衆無線LAN及び大学・学校等キャンパス無線LANの普及を通じて、ICT時代の社会の情報インフラの構築と教育・研究に貢献する。