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Cryptanalysis and Design of Lightweight Symmetric-key Cryptography and Its Application to IoT

Research Project

Project/Area Number 19H02141
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21020:Communication and network engineering-related
Research InstitutionUniversity of Hyogo

Principal Investigator

Takanori Isobe  兵庫県立大学, 情報科学研究科, 教授 (30785465)

Co-Investigator(Kenkyū-buntansha) 林 卓也  国立研究開発法人情報通信研究機構, サイバーセキュリティ研究所セキュリティ基盤研究室, 研究員 (70739995)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Fiscal Year 2022: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywords軽量暗号 / ブロック暗号 / ストレージ暗号 / ハッシュ関数 / 代数攻撃 / 差分攻撃 / 認証暗号 / 共通鍵暗号 / 暗号解析 / 低遅延暗号 / 高速暗号 / ストリーム暗号 / 擬似ランダム関数 / スポンジ構造
Outline of Research at the Start

Society5.0では,センサーから情報を取得,クラウド側で分析などを行い,適切な情報処理技術を行う.一般的にデータ収集に用いられるエッジデバイスは十分なハードウェアリソースを持っておらず, 軽い演算で実装可能な軽量暗号技術が求められる.本研究では安全なSociety 5.0のため,①軽量共通鍵暗号の厳密な安全性評価手法の開発,②高い安全性と実装性能を有する軽量共通鍵暗号の構成方法の開発, ③軽量共通鍵暗号をベースとした軽量暗号ソリューションの開発を行う.最後に適切な暗号化モードの選択や軽量公開鍵暗号を適切に組み合わせることにより,IoT用途の軽量暗号技術のトータルソリューションを提供する.

Outline of Final Research Achievements

We developed the low-area scale block cipher WARP, the low-latency cipher Orthrom, the low-power consumption cipher Atom, the high-speed cipher Rocca, and the low-latency hash function Areion. Each of these is an algorithm that has achieved world-leading performance in its respective implementation. Our results have been highly acclaimed academically, having been accepted at top cryptography conferences such as CHES, FSE, and SAC. Furthermore, we developed various analytical techniques based on algebraic attacks as a method for analyzing lightweight ciphers, and we have broken the analysis records for existing ciphers such as Rasta, LowMC, Friet, and Lesamnta. This technology has also been accepted at top conferences such as CRYPTO and ASIACRYPT.

Academic Significance and Societal Importance of the Research Achievements

本研究では安全なSociety 5.0のため、軽量共通鍵暗号の厳密な安全性評価手法の開発、高い安全性と実装性能を有する軽量共通鍵暗号の構成方法の開発,、軽量共通鍵暗号をベースとした軽量暗号ソリューションの開発を実施した。解析技術としては、NISTの標準候補暗号に対して安全性の解析を行うことで世界的な標準化プロセスに貢献し、軽量共通鍵暗号に対する新しい解析手法を考案した。軽量暗号に対する安全性評価技術をベースに新しい軽量共通鍵暗号の開発を行った。本研究では、128 bit 安全性を有した上で、理論限界に近いハードウェア性能を持つ軽量暗号技術構造を明らかにした。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (60 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (7 results) Journal Article (35 results) (of which Int'l Joint Research: 20 results,  Peer Reviewed: 35 results,  Open Access: 16 results) Presentation (17 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] FHNW(スイス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Indian Institute of Technology Madras(インド)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] EPFL/FHNW(スイス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ndian Institute of Technology Madras(インド)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] スイス連邦工科大学ローザンヌ校/FHNW(スイス)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] インド工科大学 マドラス(インド)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] EPFL/FHNW(スイス)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Security Evaluation of Initialization Phases and Round Functions of Rocca and AEGIS2023

    • Author(s)
      TAKEUCHI Nobuyuki、SAKAMOTO Kosei、ISOBE Takanori
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E106.A Issue: 3 Pages: 253-262

    • DOI

      10.1587/transfun.2022CIP0013

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2023-03-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On Optimality of the Round Function of Rocca2023

    • Author(s)
      TAKEUCHI Nobuyuki、SAKAMOTO Kosei、ISOBE Takanori
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E106.A Issue: 1 Pages: 45-53

    • DOI

      10.1587/transfun.2021EAP1158

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2023-01-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Areion: Highly-Efficient Permutations and Its Applications to Hash Functions for Short Input2023

    • Author(s)
      Isobe Takanori、Ito Ryoma、Liu Fukang、Minematsu Kazuhiko、Nakahashi Motoki、Sakamoto Kosei、Shiba Rentaro
    • Journal Title

      IACR Transactions on Cryptographic Hardware and Embedded Systems

      Volume: 3 Pages: 115-154

    • DOI

      10.46586/tches.v2023.i2.115-154

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Inverse of $$\chi $$ and Its Applications to Rasta-Like Ciphers2022

    • Author(s)
      Liu Fukang、Sarkar Santanu、Meier Willi、Isobe Takanori
    • Journal Title

      Journal of Cryptology

      Volume: 35 Issue: 4 Pages: 1-10

    • DOI

      10.1007/s00145-022-09439-x

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New Low-Memory Algebraic Attacks on LowMC in the Picnic Setting2022

    • Author(s)
      Liu Fukang、Meier Willi、Sarkar Santanu、Isobe Takanori
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: 3 Pages: 102-122

    • DOI

      10.46586/tosc.v2022.i3.102-122

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New Cryptanalysis of ZUC-256 Initialization Using Modular Differences2022

    • Author(s)
      Liu Fukang、Meier Willi、Sarkar Santanu、Wang Gaoli、Ito Ryoma、Isobe Takanori
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: 3 Pages: 152-190

    • DOI

      10.46586/tosc.v2022.i3.152-190

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Algebraic Meet-in-the-Middle Attack on LowMC2022

    • Author(s)
      Fukang Liu, Santanu Sarkar, Gaoli Wang, Willi Meier, Takanori Isobe
    • Journal Title

      ASIACRYPT 2022

      Volume: 1 Pages: 225-255

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] MILP-Aided Security Evaluation of Differential Attacks on KCipher-22021

    • Author(s)
      HOKI Jin、SAKAMOTO Kosei、LIU Fukang、MINEMATSU Kazuhiko、ISOBE Takanori
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E104.A Issue: 1 Pages: 203-212

    • DOI

      10.1587/transfun.2020CIP0018

    • NAID

      130007964790

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2021-01-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Further Results on Efficient Implementations of Block Cipher Linear Layers2021

    • Author(s)
      BANIK Subhadeep、FUNABIKI Yuki、ISOBE Takanori
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E104.A Issue: 1 Pages: 213-225

    • DOI

      10.1587/transfun.2020CIP0013

    • NAID

      130007964800

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2021-01-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Efficient constructions for large‐state block ciphers based on AES New Instructions2021

    • Author(s)
      Shiba Rentaro、Sakamoto Kosei、Isobe Takanori
    • Journal Title

      IET Information Security

      Volume: 16 Issue: 3 Pages: 145-160

    • DOI

      10.1049/ise2.12053

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bit-wise cryptanalysis on AND-RX permutation Friet-PC2021

    • Author(s)
      Ito Ryoma、Shiba Rentaro、Sakamoto Kosei、Liu Fukang、Isobe Takanori
    • Journal Title

      Journal of Information Security and Applications

      Volume: 59 Pages: 102860-102860

    • DOI

      10.1016/j.jisa.2021.102860

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rocca: An Efficient AES-based Encryption Scheme for Beyond 5G2021

    • Author(s)
      Sakamoto Kosei、Liu Fukang、Nakano Yuto、Kiyomoto Shinsaku、Isobe Takanori
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: 2 Pages: 1-30

    • DOI

      10.46586/tosc.v2021.i2.1-30

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Perfect Trees: Designing Energy-Optimal Symmetric Encryption Primitives2021

    • Author(s)
      Caforio Andrea、Banik Subhadeep、Todo Yosuke、Meier Willi、Isobe Takanori、Liu Fukang、Zhang Bin
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: 3 Pages: 36-73

    • DOI

      10.46586/tosc.v2021.i4.36-73

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Weak Keys in Reduced AEGIS and Tiaoxin2021

    • Author(s)
      Liu Fukang、Isobe Takanori、Meier Willi、Sakamoto Kosei
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: 2 Pages: 104-139

    • DOI

      10.46586/tosc.v2021.i2.104-139

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Integral and impossible‐differential attacks on the reduced‐round Lesamnta‐LW‐BC2021

    • Author(s)
      Shiba Rentaro、Sakamoto Kosei、Liu Fukang、Minematsu Kazuhiko、Isobe Takanori
    • Journal Title

      IET Information Security

      Volume: 16 Issue: 2 Pages: 75-85

    • DOI

      10.1049/ise2.12044

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Algebraic Attacks on Rasta and Dasta Using Low-Degree Equations2021

    • Author(s)
      Liu Fukang、 Santanu Sarkar、Meier Willi、Takanori Isobe
    • Journal Title

      Advances in Cryptology - ASIACRYPT 2021

      Volume: 13090} Pages: 214-240

    • DOI

      10.1007/978-3-030-92062-3_8

    • ISBN
      9783030920616, 9783030920623
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cryptanalysis of Full LowMC and LowMC-M with Algebraic Techniques2021

    • Author(s)
      Liu Fukang、 Takanori Isobe、 Meier Willi
    • Journal Title

      Advances in Cryptology - CRYPTO 2021

      Volume: 12827 Pages: 368-401

    • DOI

      10.1007/978-3-030-84252-9_13

    • ISBN
      9783030842512, 9783030842529
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Atom: A Stream Cipher with Double Key Filter2021

    • Author(s)
      Banik Subhadeep、Caforio Andrea、Isobe Takanori、Liu Fukang、Meier Willi、Sakamoto Kosei、Sarkar Santanu
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: issue 1 Pages: 5-36

    • DOI

      10.46586/tosc.v2021.i1.5-36

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Orthros: A Low-Latency PRF2021

    • Author(s)
      Banik Subhadeep、Isobe Takanori、Liu Fukang、Minematsu Kazuhiko、Sakamoto Kosei
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: issue 1 Pages: 37-77

    • DOI

      10.46586/tosc.v2021.i1.37-77

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Exploiting Weak Diffusion of Gimli: Improved Distinguishers and Preimage Attacks2021

    • Author(s)
      Liu Fukang、Isobe Takanori、Meier Willi
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: issue 1 Pages: 185-216

    • DOI

      10.46586/tosc.v2021.i1.185-216

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Security Analysis and Countermeasures of an End-to-End Encryption Scheme of LINE2020

    • Author(s)
      Takanori Isobe and Kazuhiko Minematsu
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E103.A Issue: 1 Pages: 313-324

    • DOI

      10.1587/transfun.2019EAP1041

    • NAID

      130007778787

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2020-01-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Security of Related-Key Differential Attacks on TWINE, Revisited2020

    • Author(s)
      Kosei Sakamoto, Kazuhiko Minematsu, Nao Shibata, Maki Shigeri, Hiroyasu Kubo, Yuki Funabiki, a and Takanori Isobe
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E103.A Issue: 1 Pages: 212-214

    • DOI

      10.1587/transfun.2019CIL0004

    • NAID

      130007778816

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2020-01-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] ACE in Chains: How Risky Is CBC Encryption of Binary Executable Files?2020

    • Author(s)
      Fujita Rintaro、Isobe Takanori、Minematsu Kazuhiko
    • Journal Title

      International Conference on Applied Cryptography and Network Security

      Volume: issue 1 Pages: 187-207

    • DOI

      10.1007/978-3-030-57808-4_10

    • ISBN
      9783030578077, 9783030578084
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Automatic Verification of Differential Characteristics: Application to Reduced Gimli2020

    • Author(s)
      Liu Fukang、Isobe Takanori、Meier Willi
    • Journal Title

      Advances in Cryptology- CRYPTO 2020

      Volume: issue 1 Pages: 219-248

    • DOI

      10.1007/978-3-030-56877-1_8

    • ISBN
      9783030568764, 9783030568771
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Key-Recovery Security of Single-Key Even-Mansour Cipher2020

    • Author(s)
      Takanori Isobe and Kyoji Shibutani
    • Journal Title

      IEICE Trans. on Fundamentals of Electronics, Comm. and Computer Sciences

      Volume: TBA

    • NAID

      130007867191

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tweakable TWINE: Building a Tweakable Block Cipher on Generalized Feistel Structure2020

    • Author(s)
      Kosei Sakamoto, Kazuhiko Minematsu, Nao Shibata, Maki Shigeri, Hiroyasu Kubo, Yuki Funabiki, Andrey Bogdanov, Sumio Morioka and Takanori Isobe,
    • Journal Title

      IEICE Trans. on Fundamentals of Electronics, Comm. and Computer Sciences

      Volume: TBA

    • NAID

      130007948376

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] "Cube-based Cryptanalysis of Subterranean-SAE2019

    • Author(s)
      Fukang Liu, Takanori Isobe and Willi Meier
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: 4 Pages: 192-222

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New Semi-Free-Start Collision Attack Framework for Reduced RIPEMD-1602019

    • Author(s)
      Fukang Liu, Christoph Dobraunig, Florian Mendel, Takanori Isobe , Gaoli Wang and Zhenfu Cao
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: 3 Pages: 169-192

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cryptanalysis of Plantlet2019

    • Author(s)
      Subhadeep Banik, Khashayar Barooti and Takanori Isobe,
    • Journal Title

      IACR Transactions on Symmetric Cryptology

      Volume: 3 Pages: 103-120

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Efficient Collision Attack Frameworks for RIPEMD-1602019

    • Author(s)
      Fukang Liu, Christoph Dobraunig, Florian Mendel, Takanori Isobe, Gaoli Wang and Zhenfu Cao
    • Journal Title

      Advances in Cryptology (CRYPTO) 2019, Lecture Note in Computer Science

      Volume: 10992 Pages: 117-149

    • DOI

      10.1007/978-3-030-26951-7_5

    • ISBN
      9783030269500, 9783030269517
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] More results on Shortest Linear Programs2019

    • Author(s)
      Subhadeep Banik, Yuki Funabiki and Takanori Isobe
    • Journal Title

      , International Workshop on Security, (IWSEC) 2019, Lecture Note in Computer Science

      Volume: 11689 Pages: 109-128

    • DOI

      10.1007/978-3-030-26834-3_7

    • ISBN
      9783030268336, 9783030268343
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Preimage Attacks on Reduced Troika with Divide-and-Conquer Methods2019

    • Author(s)
      Fukang Liu and Takanori Isobe
    • Journal Title

      International Workshop on Security, (IWSEC) 2019, Lecture Note in Computer Science

      Volume: 11689 Pages: 109-128

    • DOI

      10.1007/978-3-030-26834-3_18

    • NAID

      130007933454

    • ISBN
      9783030268336, 9783030268343
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] weakable TWINE: Building a Tweakable Block Cipher on Generalized Feistel Structure2019

    • Author(s)
      Kosei Sakamoto, Kazuhiko Minematsu, Nao Shibata, Maki Shigeri, Hiroyasu Kubo, Yuki Funabiki, Andrey Bogdanov, Sumio Morioka and Takanori Isobe
    • Journal Title

      International Workshop on Security, (IWSEC) 2019, Lecture Note in Computer Science

      Volume: 11689 Pages: 129-145

    • DOI

      10.1007/978-3-030-26834-3_8

    • ISBN
      9783030268336, 9783030268343
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Iterative Differential Characteristic of TRIFLE-BC"2019

    • Author(s)
      Fukang Liu and Takanori Isobe
    • Journal Title

      Conference on Selected Areas in Cryptography (SAC) 2019, Lecture Note in Computer Science

      Volume: 11959 Pages: 85-100

    • DOI

      10.1007/978-3-030-38471-5_4

    • ISBN
      9783030384708, 9783030384715
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Takanori Isobe and Kazuhiko Minematsu2019

    • Author(s)
      Plaintext Recovery Attacks Against XTS Beyond Collisions
    • Journal Title

      Conference on Selected Areas in Cryptography (SAC) 2019, Lecture Note in Computer Science

      Volume: 11959 Pages: 103-123

    • DOI

      10.1007/978-3-030-38471-5_5

    • ISBN
      9783030384708, 9783030384715
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Fukang Liu, Santanu Sarkar, Gaoli Wang, Willi Meier, Takanori Isobe2022

    • Author(s)
      竹内 信幸, 阪本 光星, 五十部 孝典
    • Organizer
      コンピュータセキュリティシンポジウム(CSS) 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] SATソルバーを用いた低遅延暗号Orthrosに対する差分攻撃の耐性評価2022

    • Author(s)
      髙 和真, 石川 達也, 阪本 光星, 五十部 孝典
    • Organizer
      コンピュータセキュリティシンポジウム(CSS) 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 混合整数線形計画法を用いたAEGIS/Tiaoxin-346/Roccaに対する安全性評価2022

    • Author(s)
      白矢 琢朗 , 竹内 信幸, 阪本 光星, 五十部 孝典
    • Organizer
      コンピュータセキュリティシンポジウム(CSS) 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Piccolo-typeブロック暗号のラウンド置換の改良2022

    • Author(s)
      内海 潮音, 中橋 元輝, 阪本 光星, 五十部 孝典
    • Organizer
      コンピュータセキュリティシンポジウム(CSS) 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] "Integral and Impossible Differential Attacks on the Reduced-Round Lesamnta-LW-BC2021

    • Author(s)
      芝 廉太朗, 阪本 光星, Fukang Liu, 峯松 一彦, 五十部 孝典
    • Organizer
      2021年 暗号と情報セキュリティシンポジウム(SCIS 2021)
    • Related Report
      2020 Annual Research Report
  • [Presentation] KCipher-2に対する差分攻撃の耐性評価2021

    • Author(s)
      寶木 仁, 阪本 光星, 五十部 孝典
    • Organizer
      2021年 暗号と情報セキュリティシンポジウム(SCIS 2021)
    • Related Report
      2020 Annual Research Report
  • [Presentation] AES-NIを用いた効率的なスポンジ構造のラウンド関数の設計2021

    • Author(s)
      阪本 光星, Fukang Liu, 仲野 有登, 清本 晋作, 五十部 孝典
    • Organizer
      2021年 暗号と情報セキュリティシンポジウム(SCIS 2021)
    • Related Report
      2020 Annual Research Report
  • [Presentation] WARP : Revisiting GFN for Lightweight 128-bit Block Cipher2020

    • Author(s)
      Subhadeep Banik and Zhenzhen Bao and Takanori Isobe and Hiroyasu Kubo and Kazuhiko Minematsu and Fukang Liu and Kosei Sakamoto and Nao Shibata and Maki Shigeri
    • Organizer
      Selected Areas in Cryptography (SAC) 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] AES-NIを用いたラージブロック暗号の効率的な構成2020

    • Author(s)
      芝 廉太朗, 阪本 光星, 五十部 孝典
    • Organizer
      コンピュータセキュリティシンポジウム(CSS) 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] KCipher-2に対する差分攻撃への耐性評価2020

    • Author(s)
      寶木 仁, 阪本 光星, 峯松 一彦, 五十部 孝典
    • Organizer
      ISEC研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] KCipher-2とSNOW 3Gに対するIntegral攻撃への耐性評価2020

    • Author(s)
      寶木 仁, 阪本 光星, 峯松 一彦, 五十部 孝典
    • Organizer
      2020年 暗号と情報セキュリティシンポジウム(SCIS 2020)
    • Related Report
      2019 Annual Research Report
  • [Presentation] スペースハード暗号を用いたデータ流出耐性のあるシステムの提案2020

    • Author(s)
      小池 祐二, 林 卓也, 五十部 孝典
    • Organizer
      2020年 暗号と情報セキュリティシンポジウム(SCIS 2020)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 複数線形層を用いた低遅延ブロック暗号の構成方法2020

    • Author(s)
      阪本 光星, 峯松 一彦, 五十部 孝典
    • Organizer
      2020年 暗号と情報セキュリティシンポジウム(SCIS 2020)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Algebraic Attacks on Reduced Keccak2020

    • Author(s)
      Fukang Liu, 五十部 孝典, Willi Meier, Zhonghao Yang
    • Organizer
      2020年 暗号と情報セキュリティシンポジウム(SCIS 2020)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 軽量暗号の研究・標準化動向2019

    • Author(s)
      五十部 孝典
    • Organizer
      ハードウェアセキュリティフォーラム 2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Low-latency ブロック暗号に適した線形層の設計2019

    • Author(s)
      阪本 光星, 峯松 一彦, 五十部 孝典
    • Organizer
      コンピュータセキュリティシンポジウム (CSS 2019)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Cryptanalysis of Subterranean-SAE2019

    • Author(s)
      Fukang Liu, 五十部 孝典
    • Organizer
      コンピュータセキュリティシンポジウム (CSS 2019)
    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] The 9th Asian-workshop on Symmetric Key Cryptography (ASK 2019)2019

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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