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Reserch on Compromising of Lightweight Encryption Used in Cyberphysical/IoT

Research Project

Project/Area Number 17K00184
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Information security
Research InstitutionKobe University

Principal Investigator

Morii Masakatu  神戸大学, 工学研究科, 教授 (00220038)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsサイバーフィジカルシステム / IoT / 共通鍵暗号 / 軽量暗号 / 解読 / 安全性評価 / 評価基準 / 暗号危殆化 / 1サイバーフィジカルシステム / IoT / 暗号 / 危殆化
Outline of Final Research Achievements

This research evaluates the security of common key cryptography including the existing lightweight cryptography used in the current network encryption system considering cyber physical system (CPS) and IoT (Internet of Things), and gives a guideline for the construction of a secure system. As a concrete result, we proposed HIGHT's best attack (the best attack at the present time in terms of the amount of decoding calculations), which is a hardware-oriented block cipher with a modified Feistel structure, and a new attack method against SNOW 2.0, which is famous as a stream cipher. As a research on the implementation of cryptography, the vulnerability of WPA2, a wireless LAN cipher, was revealed from the realization of man-in-the-middle attacks.

Academic Significance and Societal Importance of the Research Achievements

多様化した実社会の莫大なデータとサイバー空間が緊密に結合されたサイバーフィジカルシステム(CPS)において、それらビッグデータの解析により新たな価値を生み出し、新たな知の創造やサービスへ活用が、様々な競争力の源泉となり得る。このように収集されたデジタルデータには個人の位置情報や生体情報など多くのプライバシ情報が含まれうるため、データのセキュリティ・プライバシを守りながら収集・活用する技術が緊急の課題となっている。その基盤秘術が暗号であり、安全に実装、運用する技術が期待されている。本研究はその評価を行うとともに、安全な実装方法について指針を与えるものである。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (25 results)

All 2020 2019 2018 2017

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results) Presentation (19 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Journal Article] A Construction of QR Codes that Output Two Information -Existence of QR Code that Leads to Malicious Websites and Its Threat-2020

    • Author(s)
      瀧田 愼、大熊 浩也、森井 昌克
    • Journal Title

      電子情報通信学会論文誌D 情報・システム

      Volume: J103-D Issue: 4 Pages: 291-300

    • DOI

      10.14923/transinfj.2019JDT0003

    • ISSN
      1880-4535, 1881-0225
    • Year and Date
      2020-04-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improved Integral Attack on HIGHT2019

    • Author(s)
      FUNABIKI Yuki、TODO Yosuke、ISOBE Takanori、MORII Masakatu
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E102.A Issue: 9 Pages: 1259-1271

    • DOI

      10.1587/transfun.E102.A.1259

    • NAID

      130007699509

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2019-09-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Counter Attack Against the Bus-Off Attack on CAN2019

    • Author(s)
      Takada Masaru、Osada Yuki、Morii Masakatu
    • Journal Title

      2019 14th Asia Joint Conference on Information Security (AsiaJCIS)

      Volume: 1 Pages: 1-8

    • DOI

      10.1109/asiajcis.2019.00004

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coded Caching for Hierarchical Networks with a Different Number of Layers2018

    • Author(s)
      TAKITA Makoto、HIROTOMO Masanori、MORII Masakatu
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E101.A Issue: 12 Pages: 2037-2046

    • DOI

      10.1587/transfun.E101.A.2037

    • NAID

      130007539031

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2018-12-01
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cryptanalysis of Reduced Kreyvium2018

    • Author(s)
      WATANABE Yuhei、ISOBE Takanori、MORII Masakatu
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E101.A Issue: 9 Pages: 1548-1556

    • DOI

      10.1587/transfun.E101.A.1548

    • NAID

      130007479525

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2018-09-01
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Analysis and Improvements of the Full Spritz Stream Cipher2017

    • Author(s)
      Subhadeep BANIK, Takanori ISOBE, Masakatu MORII
    • Journal Title

      IEICE Trans. Fundamentals

      Volume: EA100-A Pages: 1296-1305

    • NAID

      130005685897

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ランサムウェア感染時の復旧対策ツールの開発【続報】2020

    • Author(s)
      古門 良介,池上 雅人,長谷川 智久,原田 隆史,木谷 浩,森井 昌克
    • Organizer
      電子情報通信学会研究報告セキュリティ心理学とトラスト(SPT)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 私見:情報理論からサイバーセキュリティへ2020

    • Author(s)
      森井昌克
    • Organizer
      電子情報通信学会研究報告情報セキュリティ(ISEC)
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 無線LAN機器に対するDoS攻撃の実装と評価2019

    • Author(s)
      窪田 恵人,五十部 孝典,森井 昌克
    • Organizer
      コンピュータセキュリティシンポジウム2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Enocoro-128v2のCube攻撃に対する安全性評価2019

    • Author(s)
      船引悠生, 藤堂洋介, 五十部孝典, 森井昌克
    • Organizer
      2019年暗号と情報セキュリティシンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] Type-1.x 一般化Feistel構造におけるブロックシャッフルの評価2019

    • Author(s)
      小家 武, 五十部 孝典, 藤堂 洋介, 森井 昌克
    • Organizer
      2019年暗号と情報セキュリティシンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] GLP署名の故障利用攻撃に対する安全性評価2019

    • Author(s)
      長濱 拓季, 藤堂 洋介, 草川 恵太, 森井 昌克
    • Organizer
      2019年暗号と情報セキュリティシンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] LoRaWANに対するDoS攻撃の提案と対策2019

    • Author(s)
      壇 慶人, 瀧田 愼, 仲野 有登, 清本 晋作, 森井 昌克
    • Organizer
      2019年暗号と情報セキュリティシンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] ナップザックタイプ暗号に対する解読法の提案 ~ 部分和判定問題に基づくナップザック暗号の解読 ~2018

    • Author(s)
      高田将, 森井昌克
    • Organizer
      電子情報通信学会 情報通信システムセキュリティ研究会 技術研究報告
    • Related Report
      2018 Research-status Report
  • [Presentation] Coded Caching in Multi-Rate Wireless Network2018

    • Author(s)
      Makoto Takita, Masanori Hirotomo, Masakatu Morii
    • Organizer
      2018 IEEE International Conference on Communications Workshops
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Several MILP-Aided Attacks against SNOW 2.02018

    • Author(s)
      Y. Funabiki, Y. Todo, T. Isobe M. Morii
    • Organizer
      The Seventeenth International Conference on Cryptology And Network Security
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Construction of Fake QR Codes Based on Error-Correcting Codes2018

    • Author(s)
      M. Takita, H.Okuma, M. Morii
    • Organizer
      The Sixth International Symposium on Computing and Networking
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 実環境を想定したWPA2に対するKRACKsの評価実験2018

    • Author(s)
      窪田恵人, 小家武, 船引悠生, 藤堂洋介, 五十部孝典, 森井昌克
    • Organizer
      2018コンピュータセキュリティシンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] 一般化Feistel構造における最適なブロックシャッフルの評価2018

    • Author(s)
      小家 武、五十部 孝典、藤堂 洋介、森井昌克
    • Organizer
      2018年 暗号と情報セキュリティシンポジウム(SCIS2018)
    • Related Report
      2017 Research-status Report
  • [Presentation] 整数計画法を用いたXOR-SNOW 2.0に対する差分特性探索2018

    • Author(s)
      北川 理太、船引 悠生、藤堂 洋介、五十部 孝典、森井 昌克
    • Organizer
      2018年 暗号と情報セキュリティシンポジウム(SCIS2018)
    • Related Report
      2017 Research-status Report
  • [Presentation] SNOW 2.0に対する新たな線形近似探索手法と高速相関攻撃への応用2018

    • Author(s)
      船引 悠生、藤堂 洋介、五十部 孝典、森井 昌克
    • Organizer
      2018年 暗号と情報セキュリティシンポジウム(SCIS2018)
    • Related Report
      2017 Research-status Report
  • [Presentation] 整数計画法を用いた平文回復攻撃による二値行列LWE暗号の安全性評価2018

    • Author(s)
      長濱 拓季、船引 悠生、藤堂 洋介、草川 恵太、森井 昌克
    • Organizer
      2018年 暗号と情報セキュリティシンポジウム(SCIS2018)
    • Related Report
      2017 Research-status Report
  • [Presentation] Improved Integral Attack on HIGHT2017

    • Author(s)
      Yuki Funabiki, Yosuke Todo, Takanori Isobe, Masakatu Morii
    • Organizer
      22nd Australasian Conference on Information Security and Privacy(ACISP2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Conditional Differential Cryptanalysis for Kreyvium2017

    • Author(s)
      Yuhei Watanabe, Takanori Isobe, Masakatu Morii
    • Organizer
      22nd Australasian Conference on Information Security and Privacy(ACISP2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Low-Data Complexity Attacks on Camellia2017

    • Author(s)
      akeru Koie, Takanori Isobe, Yosuke Todo, Masakatu Morii
    • Organizer
      Applications and Technologies in Information Security (ATIS2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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