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Security Technologies without User Interaction in Distributed Environment

Research Project

Project/Area Number 18K11304
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60070:Information security-related
Research InstitutionHosei University

Principal Investigator

Obana Satoshi  法政大学, 情報科学部, 教授 (70633600)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsマルチパーティ計算 / 非対話型プロトコル / 通信量削減 / 不正防止 / 通信回数削減 / 非対話型マルチパーティ計算
Outline of Final Research Achievements

We have developed cryptographic protocols in a distributed environment. The notable feature of proposed protocols is that no interaction among users is required. More concretely, we have developed cryptographic protocols such as NIMPC (Non-Interactive Multi Party Computation), CDSS (Cheating Detectable Secret Sharing), and information theoretically secure authenticated encryption secure against replay attack. Here, NIMPC is a cryptographic primitive which enables users to evaluate any function with input secret information of users without revealing their secret information. Cheating Detectable Secret Sharing is a variant of secret sharing (a cryptographic protocol for split secret information into pieces (called share) in such a way that no partial information about the secret is revealed unless certain number of pieces are obtained by the adversary) with an extra functionality to detect the presence of forged shares in reconstructing the secret.

Academic Significance and Societal Importance of the Research Achievements

分散型の暗号プロトコルでは,複雑な通信がプロトコルのデッドロックの要因となったり,プロトコルの実行速度のボトルネックとなることが多く,ユーザ間での複雑な通信を可能な限り排除することが理想である.本研究で提案した暗号プロトコルは全て,非常に単純な一方向の通信で構成されており,通信に起因するデッドロックの発生やパフォーマンス低下を防ぐことが可能となっている.しかし,複雑な通信を行うプロトコルと比較して,非対話的なプロトコルは通信量の増大を招くことが多いが,本研究ではNIMPC(非対話型のマルチパーティ計算)において,通信量の削減に成功している点で学術的意義は大きいと言える.

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (24 results)

All 2024 2023 2022 2021 2020 2019 2018

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (22 results) (of which Int'l Joint Research: 11 results,  Invited: 1 results)

  • [Journal Article] Verifiably Multiplicative Secret Sharing2019

    • Author(s)
      Maki Yoshida, Satoshi Obana
    • Journal Title

      IEEE Transactions on Information Theory

      Volume: 65 Issue: 5 Pages: 3233-3245

    • DOI

      10.1109/tit.2018.2886262

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the (in)efficiency of non-interactive secure multiparty2018

    • Author(s)
      Maki Yoshida, Satoshi Obana
    • Journal Title

      Designs, Codes and Cryptography

      Volume: - Issue: 8 Pages: 1-13

    • DOI

      10.1007/s10623-017-0424-7

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 宇宙ロケット用セキュア通信のためのGNSS測位情報を用いた鍵同期方式2024

    • Author(s)
      森岡澄夫,尾花賢,吉田真紀
    • Organizer
      2024年 暗号と情報セキュリティシンポジウム (SCIS 2024)
    • Related Report
      2023 Annual Research Report
  • [Presentation] GNSS時刻情報を用いたセキュア通信用鍵同期機構における鍵キャッシュ設計2023

    • Author(s)
      森岡澄夫,尾花賢,吉田真紀
    • Organizer
      第67回宇宙科学技術連合講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] A Cryptanalysis against the Cheating Detectable Secret Sharing from NISS 20192023

    • Author(s)
      Kiminori Kaneko, Satoshi Obana
    • Organizer
      Eleventh International Symposium on Computing and Networking, CANDAR 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 小型宇宙機用セキュア通信におけるGNSS時刻情報を用いた鍵同期方式2022

    • Author(s)
      森岡澄夫,尾花賢,吉田真紀
    • Organizer
      第66回宇宙科学技術連合講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Fully Subliminal-Free Schnorr Signature for Nonce2022

    • Author(s)
      Sho Sugauchi, Satoshi Obana
    • Organizer
      The Tenth International Symposium on Computing and Networking (CANDAR 2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 情報理論的安全性を有する宇宙ロケット用セキュア通信方式の性能実証飛行2022

    • Author(s)
      森岡澄夫,尾花賢,吉田真紀
    • Organizer
      2022年 暗号と情報セキュリティシンポジウム (SCIS 2022)
    • Related Report
      2021 Research-status Report
  • [Presentation] Exposure Resilient Public-key Encryption with Keyword Search against Keyword Guessing Attack2021

    • Author(s)
      Kaito Uemura, Satoshi Obana
    • Organizer
      International Conference on Security and Cryptography - SECRYPT
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cheating Detectable Secret Sharing Scheme from Multiplicative Homomorphic Authentication Function2021

    • Author(s)
      Kaichi Sato, Satoshi Obana
    • Organizer
      International Symposium on Computing and Networking Workshops (CANDARW)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Efficient Constructions of Non-interactive Secure Multiparty Computation from Pairwise Independent Hashing2020

    • Author(s)
      Satoshi Obana, Maki Yoshida
    • Organizer
      17th International Joint Conference on e-Business and Telecommunications, ICETE 2020 - Volume 2: SECRYPT
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Compact Verifiably Multiplicative Secret Sharing2020

    • Author(s)
      Maki Yoshida, Satoshi Obana
    • Organizer
      International Symposium on Information Theory and Its Applications, ISITA 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 情報理論的安全性を有する小型衛星・小型ロケット用セキュア通信方式の実装検討と飛行評価2020

    • Author(s)
      森岡澄夫,尾花賢,吉田真紀
    • Organizer
      2020年暗号と情報セキュリティシンポジウム,SCIS2020
    • Related Report
      2019 Research-status Report
  • [Presentation] 観測ロケットMOMO3号機によるセキュア通信方式の基礎実験2019

    • Author(s)
      吉田真紀,森岡澄夫,尾花賢
    • Organizer
      セキュリティサマーサミット2019
    • Related Report
      2019 Research-status Report
  • [Presentation] Security Requirements for Store-on-Client and Verify-on-Server Secure Biometric Authentication2019

    • Author(s)
      Haruna Higo, Toshiyuki Isshiki, Masahiro Nara, Satoshi Obana, Toshihiko Okamura, Hiroto Tamiya
    • Organizer
      Emerging Technologies for Authorization and Authentication, ETAA 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 検証可能な乗法秘密分散の効率向上2019

    • Author(s)
      吉田真紀,尾花賢
    • Organizer
      コンピュータセキュリティシンポジウム2019
    • Related Report
      2019 Research-status Report
  • [Presentation] Almost Optimal Cheating-Detectable (2,2,n) Ramp Secret Sharing Scheme2019

    • Author(s)
      Tomoki Agematsu, Satoshi Obana
    • Organizer
      International Symposium on Computing and Networking, CANDAR 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] テンプレートをクライアントが持つオンライン秘匿生体認証の安全性2019

    • Author(s)
      奈良成泰,田宮寛人,肥後春菜,一色寿幸,尾花賢,岡村利彦
    • 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] テンプレートをクライアントが持つオンライン秘匿生体認証方式2019

    • Author(s)
      田宮寛人,奈良成泰,肥後春菜,一色寿幸,尾花賢,岡村利彦
    • 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] 小型衛星・小型ロケット用通信のセキュリティモデルとプロトタイプ実装2019

    • Author(s)
      尾花賢,吉田真紀,森岡澄夫
    • Organizer
      第84回コンピュータセキュリティ研究会研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] 超小型衛星・小型ロケット用セキュア通信のための情報理論的 安全性の検討2018

    • Author(s)
      森岡澄夫,尾花賢,吉田真紀
    • Organizer
      第62回宇宙科学技術連合講演会予稿集
    • Related Report
      2018 Research-status Report
  • [Presentation] How to Guarantee Integrity in Secret Sharing2018

    • Author(s)
      Satoshi Obana
    • Organizer
      The Sixth International Symposium on Computing and Networking
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] How to Realize Highly Accurate Computation with Fully Homomorphic Encryption2018

    • Author(s)
      Tomoki Agematsu, Satoshi Obana
    • Organizer
      5th International Workshop on Information and Communication Security
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Updatable Searchable Symmetric Encryption with Fine-Grained Delete Functionality2018

    • Author(s)
      Motoki Miyano, Satoshi Obana
    • Organizer
      5th International Workshop on Information and Communication Security
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2025-01-30  

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