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Agilecrypt Frameworks for Advanced Cryptographic Primitive Constructions, Compositions, and Conversions

Research Project

Project/Area Number 19H01109
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 60:Information science, computer engineering, and related fields
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Attrapadung Nuttapong  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 研究チーム長 (40515300)

Co-Investigator(Kenkyū-buntansha) 縫田 光司  九州大学, マス・フォア・インダストリ研究所, 教授 (20435762)
照屋 唯紀  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (20636972)
花岡 悟一郎  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 首席研究員 (30415731)
坂井 祐介  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (40750659)
松田 隆宏  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 研究チーム長 (60709492)
山田 翔太  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (70750834)
村上 隆夫  統計数理研究所, データ科学研究系, 准教授 (80587981)
Schuldt Jacob  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (80750893)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥45,110,000 (Direct Cost: ¥34,700,000、Indirect Cost: ¥10,410,000)
Fiscal Year 2023: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2022: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2021: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2020: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2019: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Keywords暗号理論 / 情報セキュリティ / 高機能暗号 / プライバシ保護技術
Outline of Research at the Start

これまで多様な機能・性質を持つ暗号方式の設計がなされているが、個別化設計により暗号方式同士の互換性が損なわれ、異なるシステム上の暗号化データを相互に利活用することが困難となっている。本研究では、任意の高機能暗号方式による暗号文を、異なる機能・性質をもつ別の高機能暗号方式の暗号文に変換可能とするアジャイルクリプト技術の実現を目指す。これにより、例えば、耐量子計算機暗号を用いた厳重な保管がなされているデータベース上の情報を、準同型暗号の暗号文に変換し暗号化状態のままデータ処理を行うことや、関数暗号の暗号文に変換することで流出に対する高い安全性を提供しながら正当な利用者によるデータ共有が可能となる。

Outline of Final Research Achievements

We design theoretical frameworks that compose advanced cryptographic primitives or schemes in secure, compatible, and agile manners, collectively termed Agilecrypt. Our research encompasses composition frameworks for advanced encryption methods such as attribute-based, functional, and homomorphic encryption. Additionally, we have developed frameworks for attribute-based signatures, multi-party computation, proof systems, and privacy-preserving data analysis techniques. A highlight of our work is a series of results on modular compositions for attribute-based encryption (ABE), enabling system adopters to derive complex ABE policies from simpler ones in an agile manner. The security of these composed schemes is generically ensured by a central theorem. Our ABE results have been published in top-tier conferences such as Eurocrypt’19, Asiacrypt’20, and Crypto’24. Overall, we have produced more than 40 papers on this project.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は、高度な暗号プリミティブの設計と組み合わせを可能にする新しい理論的枠組みを提供する点にある。これにより、複雑な暗号システムの構築が容易になり、暗号理論の発展に寄与する。また、社会的意義としては、安全で柔軟なデータ保護技術を提供することで、プライバシー保護やデータセキュリティの向上が期待される。これにより、医療、金融、行政などの分野でのデータ利用が促進され、社会全体の信頼性と安全性が向上する。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Comments on the Screening Results   Annual Research Report
  • Research Products

    (64 results)

All 2024 2023 2022 2021 2020 2019

All Journal Article (62 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 59 results,  Open Access: 18 results) Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] On Weighted-Sum Orthogonal Latin Squares and Secret Sharing2024

    • Author(s)
      NUIDA Koji、ADACHI Tomoko
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E107.A Issue: 9 Pages: 1492-1495

    • DOI

      10.1587/transfun.2023DML0002

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2024-09-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] More Efficient Two-Round Multi-Signature Scheme with Provably Secure Parameters for Standardized Elliptic Curves2024

    • Author(s)
      Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E107.A Issue: 7 Pages: 966-988

    • DOI

      10.1587/transfun.2023EAP1045

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2024-07-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On Extension of Evaluation Algorithms in Keyed-Homomorphic Encryption2024

    • Author(s)
      SHINOKI Hirotomo、NUIDA Koji
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E107.A Issue: 3 Pages: 218-233

    • DOI

      10.1587/transfun.2023CIP0007

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2024-03-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Correlated Randomness Reduction in Domain-Restricted Secure Two-Party Computation2024

    • Author(s)
      HIWATASHI Keitaro、NUIDA Koji
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E107.A Issue: 3 Pages: 283-290

    • DOI

      10.1587/transfun.2023CIP0023

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2024-03-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Explicit Lower Bounds for Communication Complexity of PSM for Concrete Functions2024

    • Author(s)
      Shinagawa Kazumasa、Nuida Koji
    • Journal Title

      Proceedings of INDOCRYPT 2023 (Part II)

      Volume: LNCS vol.14460 Pages: 45-61

    • DOI

      10.1007/978-3-031-56235-8_3

    • ISBN
      9783031562341, 9783031562358
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficient and Generic Methods to Achieve Active Security in Private Information Retrieval and?More Advanced Database Search2024

    • Author(s)
      Eriguchi Reo、Kurosawa Kaoru、Nuida Koji
    • Journal Title

      Proceedings of EUROCRYPT 2024 (Part V), LNCS

      Volume: - Pages: 92-121

    • DOI

      10.1007/978-3-031-58740-5_4

    • ISBN
      9783031587399, 9783031587405
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 3変数ブール関数に対するPSMプロトコルの通信量の上下界2024

    • Author(s)
      品川 和雅, 縫田 光司
    • Journal Title

      2024年暗号と情報セキュリティシンポジウム(SCIS2024)予稿集

      Volume: - Pages: 1-8

    • Related Report
      2023 Annual Research Report
  • [Journal Article] 秘密計算のsemi-honest安全性定義について2024

    • Author(s)
      縫田 光司
    • Journal Title

      2024年暗号と情報セキュリティシンポジウム(SCIS2024)予稿集

      Volume: - Pages: 1-8

    • Related Report
      2023 Annual Research Report
  • [Journal Article] カードベース暗号に現れる語の組合せ論2024

    • Author(s)
      品川 和雅, 縫田 光司
    • Journal Title

      2024年暗号と情報セキュリティシンポジウム(SCIS2024)予稿集

      Volume: - Pages: 1-8

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Privacy-Preserving Verifiable CNNs2024

    • Author(s)
      Attrapadung Nuttapong、Hanaoaka Goichiro、Hiromasa Ryo、Koseki Yoshihiro、Matsuda Takahiro、Nishida Yutaro、Sakai Yusuke、Schuldt Jacob C. N.、Yasuda Satoshi
    • Journal Title

      Proceedings of ACNS 2024, LNCS

      Volume: - Pages: 373-402

    • DOI

      10.1007/978-3-031-54773-7_15

    • ISBN
      9783031547720, 9783031547737
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficient Supersingularity Testing of Elliptic Curves Using Legendre Curves2023

    • Author(s)
      Yuji Hashimoto, Koji Nuida
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E106.A Issue: 9 Pages: 1119-1130

    • DOI

      10.1587/transfun.2022DMP0002

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2023-09-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficient Construction of CGL Hash Function Using Legendre Curves2023

    • Author(s)
      Yuji Hashimoto, Koji Nuida
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E106.A Issue: 9 Pages: 1131-1140

    • DOI

      10.1587/transfun.2022DMP0003

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2023-09-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Maliciously circuit-private multi-key FHE and MPC based on LWE2023

    • Author(s)
      Attrapadung Nuttapong、Hanaoka Goichiro、Hiromasa Ryo、Matsuda Takahiro、Schuldt Jacob C. N.
    • Journal Title

      Designs, Codes and Cryptography

      Volume: 91 Issue: 5 Pages: 1645-1684

    • DOI

      10.1007/s10623-022-01160-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Signature for Objects: Formalizing How to Authenticate Physical Data and More2023

    • Author(s)
      Ryuya Hayashi, Taiki Asano, Junichiro Hayata, Takahiro Matsuda, Shota Yamada, Shuichi Katsumata, Yusuke Sakai, Tadanori Teruya, Jacob C. N. Schuldt, Nuttapong Attrapadung, Goichiro Hanaoka, Kanta Matsuura, and Tsutomu Matsumoto
    • Journal Title

      Financial Cryptography and Data Security 2023(FC 2023)

      Volume: PartⅠ Pages: 182-199

    • DOI

      10.1007/978-3-031-47754-6_11

    • ISBN
      9783031477539, 9783031477546
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Practical Round-Optimal Blind Signatures in the ROM from Standard Assumptions2023

    • Author(s)
      Katsumata Shuichi、Reichle Michael、Sakai Yusuke
    • Journal Title

      Advances in Cryptology - ASIACRYPT 2023

      Volume: - Pages: 383-417

    • DOI

      10.1007/978-981-99-8724-5_12

    • ISBN
      9789819987238, 9789819987245
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Two-Dimensional Dynamic Fusion for Continuous Authentication2023

    • Author(s)
      Attrapadung Nuttapong、Hanaoka Goichiro、Kotoi-Xie Haochen M.、Matsuda Takahiro、Moriyama Takumi、Murakami Takao、Nakamura Hidenori、Jacob Schuldt C. N.、Tokuyama Masaaki、Zhang Jing
    • Journal Title

      Proceedings of the 2023 IEEE International Joint Conference on Biometrics (IJCB 2023)

      Volume: - Pages: 1-9

    • DOI

      10.1109/ijcb57857.2023.10448866

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Constant Input Attribute Based (and Predicate) Encryption from Evasive and Tensor LWE2023

    • Author(s)
      Agrawal Shweta、Rossi Melissa、Yadav Anshu、Yamada Shota
    • Journal Title

      Advances in Cryptology - CRYPTO 2023

      Volume: - Pages: 532-564

    • DOI

      10.1007/978-3-031-38551-3_17

    • ISBN
      9783031385506, 9783031385513
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Broadcast, Trace and Revoke with Optimal Parameters from Polynomial Hardness2023

    • Author(s)
      Agrawal Shweta、Kumari Simran、Yadav Anshu、Yamada Shota
    • Journal Title

      Advances in Cryptology - EUROCRYPT 2023

      Volume: - Pages: 605-636

    • DOI

      10.1007/978-3-031-30620-4_20

    • ISBN
      9783031306198, 9783031306204
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Public Key Encryption with Secure Key Leasing2023

    • Author(s)
      Agrawal Shweta、Kitagawa Fuyuki、Nishimaki Ryo、Yamada Shota、Yamakawa Takashi
    • Journal Title

      Advances in Cryptology - EUROCRYPT 2023

      Volume: - Pages: 581-610

    • DOI

      10.1007/978-3-031-30545-0_20

    • ISBN
      9783031305443, 9783031305450
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Private simultaneous messages based on quadratic residues2023

    • Author(s)
      Shinagawa Kazumasa、Eriguchi Reo、Satake Shohei、Nuida Koji
    • Journal Title

      Designs, Codes and Cryptography

      Volume: 91 Issue: 12 Pages: 3915-3932

    • DOI

      10.1007/s10623-023-01279-5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Explicit and Nearly Tight Lower Bound for 2-Party Perfectly Secure FSS2023

    • Author(s)
      Hiwatashi Keitaro、Nuida Koji
    • Journal Title

      Proceedings of ACNS 2023 (Part II)

      Volume: LNCS vol.13906 Pages: 541-554

    • DOI

      10.1007/978-3-031-33491-7_20

    • ISBN
      9783031334900, 9783031334917
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Exponential Correlated Randomness is Necessary in Communication-Optimal Perfectly Secure Two-Party Computation2023

    • Author(s)
      Keitaro Hiwatashi, Koji Nuida
    • Journal Title

      Proceedings of ITC 2023

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficient Card-Based Millionaires’ Protocols via Non-binary Input Encoding2023

    • Author(s)
      Nuida Koji
    • Journal Title

      Proceedings of IWSEC 2023, LNCS

      Volume: - Pages: 237-254

    • DOI

      10.1007/978-3-031-41326-1_13

    • ISBN
      9783031413254, 9783031413261
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Receiver Selective Opening Chosen Ciphertext Secure Identity-Based Encryption2022

    • Author(s)
      HARA Keisuke、MATSUDA Takahiro、TANAKA Keisuke
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E105.A Issue: 3 Pages: 160-172

    • DOI

      10.1587/transfun.2021CIP0006

    • NAID

      130008165328

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2022-03-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Secure Parallel Computation on Privately Partitioned Data and Applications2022

    • Author(s)
      Nuttapong Attrapadung, Hiraku Morita, Kazuma Ohara, Jacob C. N. Schuldt, Tadanori Teruya, Kazunari Tozawa
    • Journal Title

      ACM SIGSAC Conference on Computer and Communications Security CCS 2022

      Volume: - Pages: 151-164

    • DOI

      10.1145/3548606.3560695

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Memory and Round-Efficient MPC Primitives in the Pre-Processing Model from Unit Vectorization2022

    • Author(s)
      Nuttapong Attrapadung, Hiraku Morita, Kazuma Ohara, Jacob C. N. Schuldt, Kazunari Tozawa
    • Journal Title

      ACM ASIACCS 2022

      Volume: - Pages: 858-872

    • DOI

      10.1145/3488932.3517407

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Adam in Private: Secure and Fast Training of Deep Neural Networks with Adaptive Moment Estimation2022

    • Author(s)
      Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Takahiro Matsuda, Ibuki Mishina, Hiraku Morita, Jacob C. N. Schuldt
    • Journal Title

      Proc. Priv. Enhancing Technol. (PETS) 2022(4)

      Volume: 4 Issue: 4 Pages: 746-767

    • DOI

      10.56553/popets-2022-0131

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the Optimal Communication Complexity of Error-Correcting Multi-Server PIR2022

    • Author(s)
      Reo Eriguchi, Kaoru Kurosawa, Koji Nuida
    • Journal Title

      Proceedings of TCC 2022

      Volume: - Pages: 60-88

    • DOI

      10.1007/978-3-031-22368-6_3

    • ISBN
      9783031223679, 9783031223686
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chosen Ciphertext Secure Keyed Two-Level Homomorphic Encryption2022

    • Author(s)
      Yusaku Maeda, Koji Nuida
    • Journal Title

      Proceedings of ACISP 2022

      Volume: - Pages: 209-228

    • DOI

      10.1007/978-3-031-22301-3_11

    • ISBN
      9783031223006, 9783031223013
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On Extension of Evaluation Algorithms in Keyed-Homomorphic Encryption2022

    • Author(s)
      Hirotomo Shinoki, Koji Nuida
    • Journal Title

      Proceedings of IWSEC 2022

      Volume: - Pages: 189-207

    • DOI

      10.1007/978-3-031-15255-9_10

    • ISBN
      9783031152542, 9783031152559
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multi-Server PIR with Full Error Detection and Limited Error Correction2022

    • Author(s)
      Reo Eriguchi, Kaoru Kurosawa, Koji Nuida
    • Journal Title

      Proceedings of ITC 2022

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] How to Handle Invalid Queries for Malicious-Private Protocols Based on Homomorphic Encryption2022

    • Author(s)
      Koji Nuida
    • Journal Title

      Proceedings of The 9th ACM ASIA Public-Key Cryptography Workshop (APKC 2022)

      Volume: - Pages: 15-25

    • DOI

      10.1145/3494105.3526238

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Differentially Private Triangle and 4-Cycle Counting in the Shuffle Model2022

    • Author(s)
      Jacob Imola, Takao Murakami, Kamalika Chaudhuri
    • Journal Title

      ACM SIGSAC Conference on Computer and Communications Security CCS 2022

      Volume: - Pages: 1505-1519

    • DOI

      10.1145/3548606.3560659

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] NIZK from SNARGs2022

    • Author(s)
      Fuyuki Kitagawa, Takahiro Matsuda, Takashi Yamakawa
    • Journal Title

      Journal of Cryptology

      Volume: 36 Issue: 2

    • DOI

      10.1007/s00145-023-09449-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CCA Security and Trapdoor Functions via Key-Dependent-Message Security2022

    • Author(s)
      Kitagawa Fuyuki、Matsuda Takahiro、Tanaka Keisuke
    • Journal Title

      Journal of Cryptology

      Volume: 35 Issue: 2 Pages: 9-9

    • DOI

      10.1007/s00145-022-09420-8

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multi-input Attribute Based Encryption and Predicate Encryption2022

    • Author(s)
      Shweta Agrawal, Anshu Yadav, Shota Yamada
    • Journal Title

      CRYPTO 2022

      Volume: - Pages: 590-621

    • DOI

      10.1007/978-3-031-15802-5_21

    • ISBN
      9783031158018, 9783031158025
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bounded Functional Encryption for Turing Machines: Adaptive Security from General Assumptions2022

    • Author(s)
      Shweta Agrawal, Fuyuki Kitagawa, Anuja Modi, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa
    • Journal Title

      TCC (1) 2022

      Volume: - Pages: 618-647

    • DOI

      10.1007/978-3-031-22318-1_22

    • ISBN
      9783031223174, 9783031223181
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Succinct Attribute-Based Signatures for Bounded-Size Circuits by Combining Algebraic and Arithmetic Proofs2022

    • Author(s)
      Sakai Yusuke
    • Journal Title

      Security and Cryptography for Networks, 13th International Conference, SCN 2022, Amalfi (SA), Italy, September 12-14, 2022, Proceedings

      Volume: 13409 Pages: 711-734

    • DOI

      10.1007/978-3-031-14791-3_31

    • ISBN
      9783031147906, 9783031147913
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficient Two-Party Exponentiation from Quotient Transfer2022

    • Author(s)
      Yi Lu, Keisuke Hara, Kazuma Ohara, Jacob C. N. Schuldt, Keisuke Tanaka
    • Journal Title

      Applied Cryptography and Network Security - 20th International Conference, ACNS 2022

      Volume: - Pages: 643-662

    • DOI

      10.1007/978-3-031-09234-3_32

    • ISBN
      9783031092336, 9783031092343
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficient Oblivious Evaluation Protocol and Conditional Disclosure of Secrets for DFA2022

    • Author(s)
      Kittiphop Phalakarn, Nuttapong Attrapadung, Kanta Matsuura
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 13269 Pages: 605-625

    • DOI

      10.1007/978-3-031-09234-3_30

    • ISBN
      9783031092336, 9783031092343
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Generic transformation from broadcast encryption to round-optimal deniable ring authentication2022

    • Author(s)
      Hara Keisuke、Matsuda Takahiro、Hanaoka Goichiro、Tanaka Keisuke
    • Journal Title

      Designs, Codes and Cryptography

      Volume: 90 Issue: 2 Pages: 277-316

    • DOI

      10.1007/s10623-021-00975-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Achieving Pairing-Free Aggregate Signatures using Pre-Communication between Signers2021

    • Author(s)
      K. Takemure, Y. Sakai, B. Santoso, G. Hanaoka, K. Ohta
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E104.A Issue: 9 Pages: 1188-1205

    • DOI

      10.1587/transfun.2020DMP0023

    • NAID

      130008081795

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2021-09-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evolving Homomorphic Secret Sharing for Hierarchical Access Structures2021

    • Author(s)
      Phalakarn Kittiphop、Suppakitpaisarn Vorapong、Attrapadung Nuttapong、Matsuura Kanta
    • Journal Title

      IWSEC 2021 (Lecture Notes in Computer Science)

      Volume: 12835 Pages: 77-96

    • DOI

      10.1007/978-3-030-85987-9_5

    • ISBN
      9783030859862, 9783030859879
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oblivious Linear Group Actions and Applications2021

    • Author(s)
      Attrapadung Nuttapong、Hanaoaka Goichiro、Matsuda Takahiro、Morita Hiraku、Ohara Kazuma、Schuldt Jacob C. N.、Teruya Tadanori、Tozawa Kazunari
    • Journal Title

      ACM SIGSAC Conference on Computer and Communications Security CCS 2021

      Volume: n/a Pages: 630-650

    • DOI

      10.1145/3460120.3484584

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Non-interactive Secure Multiparty Computation for Symmetric Functions, Revisited: More Efficient Constructions and Extensions2021

    • Author(s)
      Eriguchi Reo、Ohara Kazuma、Yamada Shota、Nuida Koji
    • Journal Title

      CRYPTO 2021 (Lecture Notes in Computer Science)

      Volume: 12826 Pages: 305-334

    • DOI

      10.1007/978-3-030-84245-1_11

    • ISBN
      9783030842444, 9783030842451
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Homomorphic Secret Sharing for Multipartite and General Adversary Structures Supporting Parallel Evaluation of Low-Degree Polynomials2021

    • Author(s)
      Eriguchi Reo、Nuida Koji
    • Journal Title

      ASIACRYPT 2021 (Lecture Notes in Computer Science)

      Volume: 13091 Pages: 191-221

    • DOI

      10.1007/978-3-030-92075-3_7

    • ISBN
      9783030920746, 9783030920753
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Receiver Selective Opening Chosen Ciphertext Secure Identity-Based Encryption2021

    • Author(s)
      Hara Keisuke、Matsuda Takahiro、Tanaka Keisuke
    • Journal Title

      Proceedings of the 8th ACM on ASIA Public-Key Cryptography Workshop (APKC 2021)

      Volume: n/a Pages: 51-59

    • DOI

      10.1145/3457338.3458294

    • NAID

      130008165328

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Functional Encryption for Turing Machines with Dynamic Bounded Collusion from LWE2021

    • Author(s)
      Agrawal Shweta、Maitra Monosij、Vempati Narasimha Sai、Yamada Shota
    • Journal Title

      CRYPTO (4) 2021: (Lecture Notes in Computer Science)

      Volume: 12828 Pages: 239-269

    • DOI

      10.1007/978-3-030-84259-8_9

    • ISBN
      9783030842581, 9783030842598
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Round-Optimal Blind Signatures in the Plain Model from Classical and Quantum Standard Assumptions2021

    • Author(s)
      Katsumata Shuichi、Nishimaki Ryo、Yamada Shota、Yamakawa Takashi
    • Journal Title

      EUROCRYPT (1) 2021: (Lecture Notes in Computer Science)

      Volume: 12696 Pages: 404-434

    • DOI

      10.1007/978-3-030-77870-5_15

    • ISBN
      9783030778699, 9783030778705
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficient Secure Neural Network Prediction Protocol Reducing Accuracy Degradation2020

    • Author(s)
      Naohisa Nishida, Tatsumi Oba, Yuji Unagami, Jason Paul Cruz, Naoto Yanai, Tadanori Teruya, Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E103.A Issue: 12 Pages: 1367-1380

    • DOI

      10.1587/transfun.2020TAP0011

    • NAID

      130007948301

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2020-12-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unbounded Dynamic Predicate Compositions in ABE from Standard Assumptions2020

    • Author(s)
      Attrapadung Nuttapong、Tomida Junichi
    • Journal Title

      ASIACRYPT 2020 (Lecture Notes in Computer Science)

      Volume: 12493 Pages: 405-436

    • DOI

      10.1007/978-3-030-64840-4_14

    • ISBN
      9783030648398, 9783030648404
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On Private Information Retrieval Supporting Range Queries2020

    • Author(s)
      Hayata Junichiro、Schuldt Jacob C. N.、Hanaoka Goichiro、Matsuura Kanta
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 12309 Pages: 674-694

    • DOI

      10.1007/978-3-030-59013-0_33

    • ISBN
      9783030590123, 9783030590130
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Constructive t-secure Homomorphic Secret Sharing for Low Degree Polynomials2020

    • Author(s)
      Phalakarn Kittiphop、Suppakitpaisarn Vorapong、Attrapadung Nuttapong、Matsuura Kanta
    • Journal Title

      INDOCRYPT 2020 (Lecture Notes in Computer Science)

      Volume: 12578 Pages: 763-785

    • DOI

      10.1007/978-3-030-65277-7_34

    • ISBN
      9783030652760, 9783030652777
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Semantic Definition of Anonymity in Identity-Based Encryption and Its Relation to Indistinguishability-Based Definition2020

    • Author(s)
      Hanaoka Goichiro、Komatsu Misaki、Ohara Kazuma、Sakai Yusuke、Yamada Shota
    • Journal Title

      ESORICS (2) 2020 (Lecture Notes in Computer Science)

      Volume: 12309 Pages: 65-85

    • DOI

      10.1007/978-3-030-59013-0_4

    • ISBN
      9783030590123, 9783030590130
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Achieving Pairing-Free Aggregate Signatures using Pre-Communication between Signers2020

    • Author(s)
      Kaoru Takemure、Yusuke Sakai、Bagus Santoso 、Goichiro Hanaoka 、Kazuo Ohta
    • Journal Title

      ProvSec 2020

      Volume: LNCS 12505 Pages: 65-84

    • DOI

      10.1007/978-3-030-62576-4_4

    • NAID

      130008081795

    • ISBN
      9783030625757, 9783030625764
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] CP-ABE for Circuits (and More) in the Symmetric Key Setting2020

    • Author(s)
      Agrawal Shweta、Yamada Shota
    • Journal Title

      TCC (1) 2020: (Lecture Notes in Computer Science)

      Volume: 12550 Pages: 117-148

    • DOI

      10.1007/978-3-030-64375-1_5

    • ISBN
      9783030643744, 9783030643751
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Adaptively Secure Inner Product Encryption from LWE2020

    • Author(s)
      Katsumata Shuichi、Nishimaki Ryo、Yamada Shota、Yamakawa Takashi
    • Journal Title

      ASIACRYPT (3) 2020: (Lecture Notes in Computer Science)

      Volume: 12493 Pages: 375-404

    • DOI

      10.1007/978-3-030-64840-4_13

    • ISBN
      9783030648398, 9783030648404
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Taxonomy of Secure Two-Party Comparison Protocols and Efficient Constructions2019

    • Author(s)
      ATTRAPADUNG Nuttapong、HANAOKA Goichiro、KIYOMOTO Shinsaku、MIMOTO Tomoaki、C. N. SCHULDT Jacob
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E102.A Issue: 9 Pages: 1048-1060

    • DOI

      10.1587/transfun.E102.A.1048

    • NAID

      130007699467

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2019-09-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unbounded Dynamic Predicate Compositions in Attribute-Based Encryption2019

    • Author(s)
      Attrapadung Nuttapong
    • Journal Title

      Eurocrypt 2019 (Lecture Notes in Computer Science)

      Volume: 11476 Pages: 34-67

    • DOI

      10.1007/978-3-030-17653-2_2

    • ISBN
      9783030176525, 9783030176532
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation2019

    • Author(s)
      Kikuchi Ryo、Attrapadung Nuttapong、Hamada Koki、Ikarashi Dai、Ishida Ai、Matsuda Takahiro、Sakai Yusuke、Schuldt Jacob C. N.
    • Journal Title

      ACISP 2019 (Lecture Notes in Computer Science)

      Volume: 11547 Pages: 343-361

    • DOI

      10.1007/978-3-030-21548-4_19

    • ISBN
      9783030215477, 9783030215484
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] MOBIUS: Model-Oblivious Binarized Neural Networks2019

    • Author(s)
      Kitai Hiromasa、Hanaoka Goichiro、Cruz Jason Paul、Yanai Naoto、Nishida Naohisa、Oba Tatsumi、Unagami Yuji、Teruya Tadanori、Attrapadung Nuttapong、Matsuda Takahiro
    • Journal Title

      IEEE Access

      Volume: 7 Pages: 139021-139034

    • DOI

      10.1109/access.2019.2939410

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CPA-to-CCA Transformation for KDM Security2019

    • Author(s)
      Kitagawa Fuyuki、Matsuda Takahiro
    • Journal Title

      TCC 2019 (Lecture Notes in Computer Science)

      Volume: 11892 Pages: 118-148

    • DOI

      10.1007/978-3-030-36033-7_5

    • ISBN
      9783030360320, 9783030360337
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Unbounded Dynamic Predicate Compositions in Attribute-Based Encryption2019

    • Author(s)
      Attrapadung Nuttapong
    • Organizer
      Eurocrypt 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CPA-to-CCA Transformation for KDM Security2019

    • Author(s)
      Matsuda Takahiro
    • Organizer
      TCC 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2025-01-30  

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