World's Best Scientists 2026 revealed!
Tsuyoshi Takagi

Tsuyoshi Takagi

D-Index & Metrics

Computer Science

D-Index
33
Citations
6283
World Ranking
12487
National Ranking
195

Tsuyoshi Takagi publication distribution in Computer Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Computer Science in 2026. The highlighted bar marks where Tsuyoshi Takagi sits on this spectrum.

32–41 publications: 7 scientists 42–51 publications: 22 scientists 52–61 publications: 82 scientists 62–71 publications: 134 scientists 72–81 publications: 250 scientists 82–91 publications: 324 scientists 92–101 publications: 421 scientists 102–111 publications: 420 scientists 112–121 publications: 497 scientists 122–131 publications: 544 scientists 132–141 publications: 555 scientists 142–151 publications: 609 scientists 152–161 publications: 560 scientists 162–171 publications: 534 scientists 172–181 publications: 556 scientists 182–191 publications: 583 scientists 192–201 publications: 519 scientists 202–211 publications: 508 scientists 212–221 publications: 490 scientists 222–231 publications: 437 scientists 232–241 publications: 424 scientists 242–251 publications: 408 scientists 252–261 publications: 378 scientists 262–271 publications: 300 scientists 272–281 publications: 335 scientists 282–291 publications: 320 scientists 292–301 publications: 293 scientists 302–311 publications: 250 scientists 312–321 publications: 238 scientists 322–331 publications: 206 scientists 332–341 publications: 209 scientists 342–351 publications: 208 scientists 352–361 publications: 162 scientists 362–371 publications: 176 scientists 372–381 publications: 127 scientists 382–391 publications: 158 scientists 392–401 publications: 128 scientists 402–411 publications: 104 scientists 412–421 publications: 94 scientists 422–431 publications: 99 scientists 432–441 publications: 83 scientists 442–451 publications: 108 scientists 452–461 publications: 73 scientists 462–471 publications: 77 scientists 472–481 publications: 69 scientists 482–491 publications: 84 scientists 492–501 publications: 62 scientists 502–511 publications: 54 scientists 512–521 publications: 57 scientists 522–531 publications: 51 scientists 532–541 publications: 51 scientists 542–551 publications: 32 scientists 552–561 publications: 38 scientists 562–571 publications: 28 scientists 572–581 publications: 43 scientists 582–591 publications: 33 scientists 592–601 publications: 41 scientists 602–611 publications: 32 scientists 612–621 publications: 28 scientists 622–631 publications: 25 scientists 632–641 publications: 27 scientists 642–651 publications: 17 scientists 652–661 publications: 20 scientists 662–671 publications: 17 scientists 672–681 publications: 15 scientists 682–691 publications: 14 scientists 692–701 publications: 21 scientists 702–711 publications: 13 scientists 712–721 publications: 12 scientists 722–731 publications: 19 scientists 732–741 publications: 14 scientists 742–751 publications: 12 scientists 752–761 publications: 10 scientists 762–771 publications: 10 scientists 772–781 publications: 11 scientists 782–791 publications: 10 scientists 792–801 publications: 11 scientists 802–811 publications: 8 scientists 812–821 publications: 8 scientists 822–831 publications: 7 scientists 832–841 publications: 11 scientists 842–851 publications: 10 scientists 852–861 publications: 5 scientists 862–871 publications: 9 scientists 872–881 publications: 4 scientists 882–891 publications: 6 scientists 892–901 publications: 3 scientists 902–911 publications: 6 scientists 912–921 publications: 3 scientists 922–931 publications: 2 scientists 932–941 publications: 2 scientists 942–951 publications: 2 scientists 952–961 publications: 3 scientists 962–971 publications: 3 scientists 972–981 publications: 3 scientists 982–990 publications: 5 scientists 991+ publications: 100 scientists
32 publications 991+

This scientist: 378 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 991 publications or more.

Tsuyoshi Takagi D-index placement in Computer Science in 2026

The chart shows the D-index (discipline H-index) distribution of Computer Science scientists ranked by Research.com in 2026. The highlighted bar marks where Tsuyoshi Takagi sits on this spectrum.

30–31 D-Index: 879 scientists 32–33 D-Index: 984 scientists 34–35 D-Index: 918 scientists 36–37 D-Index: 990 scientists 38–39 D-Index: 969 scientists 40–41 D-Index: 907 scientists 42–43 D-Index: 821 scientists 44–45 D-Index: 765 scientists 46–47 D-Index: 689 scientists 48–49 D-Index: 543 scientists 50–51 D-Index: 543 scientists 52–53 D-Index: 517 scientists 54–55 D-Index: 500 scientists 56–57 D-Index: 458 scientists 58–59 D-Index: 400 scientists 60–61 D-Index: 337 scientists 62–63 D-Index: 308 scientists 64–65 D-Index: 292 scientists 66–67 D-Index: 249 scientists 68–69 D-Index: 213 scientists 70–71 D-Index: 192 scientists 72–73 D-Index: 189 scientists 74–75 D-Index: 165 scientists 76–77 D-Index: 139 scientists 78–79 D-Index: 119 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 113 scientists 84–85 D-Index: 88 scientists 86–87 D-Index: 87 scientists 88–89 D-Index: 75 scientists 90–91 D-Index: 69 scientists 92–93 D-Index: 57 scientists 94–95 D-Index: 46 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 34 scientists 100–101 D-Index: 36 scientists 102–103 D-Index: 27 scientists 104–105 D-Index: 37 scientists 106–107 D-Index: 18 scientists 108–109 D-Index: 31 scientists 110–111 D-Index: 19 scientists 112–113 D-Index: 16 scientists 114–115 D-Index: 12 scientists 116–117 D-Index: 20 scientists 118–119 D-Index: 15 scientists 120–121 D-Index: 5 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 8 scientists 126–127 D-Index: 5 scientists 128–129 D-Index: 7 scientists 130 D-Index: 3 scientists 131+ D-Index: 98 scientists
30 D-Index 131+

This scientist: 33 D-Index — 13th percentile

13% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 131 D-Index or more.

Overview

Tsuyoshi Takagi is affiliated with the University of Tokyo in Japan and specializes in Computer Science with a focus on Cryptography and Residue Arithmetic, Cryptography and Data Security, and Coding Theory and Cryptography. Their work spans across multiple subfields including Artificial Intelligence, Information Systems, Computational Theory and Mathematics, Geometry and Topology, and Electrical and Electronic Engineering.

Takagi has contributed to the academic community through a number of recent papers, including:

  • Recent progress in the security evaluation of multivariate public-key cryptography, 2022, IET Information Security
  • A Constant-Time Algorithm of CSIDH Keeping Two Points, 2020, IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
  • How to construct CSIDH on Edwards curves, 2023, Finite Fields and Their Applications
  • L₁-norm ball for CSIDH: Optimal strategy for choosing the secret key space, 2022, Discrete Applied Mathematics
  • Studying lattice reduction algorithms improved by quick reordering technique, 2020, International Journal of Information Security

Frequent co-authors working with Takagi include Hiroshi Onuki, Yasuhiko Ikematsu, Yusuke Aikawa, Hiroki Furue, and Kazuhide Fukushima. This collaboration network highlights a consistent engagement with scholars active in cryptographic research and related fields.

Takagi's papers are often published in venues such as:

  • IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
  • JSIAM Letters
  • arXiv (Cornell University)
  • IET Information Security
  • International Journal of Information Security

The scientist has also contributed to book publications under major publishers. Notably, one book comprises contributions titled International Symposium on Mathematics, Quantum Theory, and Cryptography, published by Springer Nature in 2020.

Takagi's research addresses prominent topics such as Cryptographic Implementations and Security, Polynomial and Algebraic Computation, Algebraic Geometry and Number Theory, and graph theory and CDMA systems. These areas align with broader themes in computational theory and practical applications in data security and cryptography.

Best Publications

  • Fast RSA-Type Cryptosystem Modulo pkq

    Tsuyoshi Takagi

  • Cryptographic Hardware and Embedded Systems – CHES 2011

    Bart Preneel;Tsuyoshi Takagi

  • A Fast Parallel Elliptic Curve Multiplication Resistant against Side Channel Attacks

    Tetsuya Izu;Tsuyoshi Takagi

  • An Efficient and Secure RFID Security Method with Ownership Transfer

    Kyosuke Osaka;Tsuyoshi Takagi;Kenichi Yamazaki;Osamu Takahashi

  • Securing the Internet of Things in a Quantum World

    Chi Cheng;Rongxing Lu;Albrecht Petzoldt;Tsuyoshi Takagi

  • Zero-value point attacks on elliptic curve cryptosystem

    Toru Akishita;Tsuyoshi Takagi

  • Signed Binary Representations Revisited.

    Katsuyuki Okeya;Katja Schmidt-Samoa;Christian Spahn;Tsuyoshi Takagi

  • Improved Progressive BKZ Algorithms and Their Precise Cost Estimation by Sharp Simulator

    Yoshinori Aono;Yuntao Wang;Takuya Hayashi;Tsuyoshi Takagi

  • Certificateless hybrid signcryption

    Fagen Li;Fagen Li;Masaaki Shirase;Tsuyoshi Takagi

  • Improved Elliptic Curve Multiplication Methods Resistant against Side Channel Attacks

    Tetsuya Izu;Bodo Möller;Tsuyoshi Takagi

  • Pairing-Based Cryptography - Pairing 2007

    Tsuyoshi Takagi;Tatsuaki Okamoto;Eiji Okamoto;Takeshi Okamoto

  • Secure and controllable k-NN query over encrypted cloud data with key confidentiality

    Youwen Zhu;Youwen Zhu;Zhiqiu Huang;Tsuyoshi Takagi

  • Efficient Signcryption for Heterogeneous Systems

    Fagen Li;Hui Zhang;Tsuyoshi Takagi

  • Secret communication and authentication scheme based on public key cryptosystem using N-adic expansion

    Tsuyoshi Takagi;Shozo Naito

  • Exceptional Procedure Attack on Elliptic Curve Cryptosystems

    Tetsuya Izu;Tsuyoshi Takagi

  • An Algorithm for the nt Pairing Calculation in Characteristic Three and its Hardware Implementation

    J.-L. Beuchat;M. Shirase;T. Takagi;E. Okamoto

  • Secure k-NN computation on encrypted cloud data without sharing key with query users

    Youwen Zhu;Rui Xu;Tsuyoshi Takagi

  • Digital Signatures Out of Second-Preimage Resistant Hash Functions

    Erik Dahmen;Katsuyuki Okeya;Tsuyoshi Takagi;Camille Vuillaume

  • Algorithms and Arithmetic Operators for Computing the ηT Pairing in Characteristic Three

    J.-L. Beuchat;N. Brisebarre;J. Detrey;E. Okamoto

  • Efficient Conjunctive Keyword-Searchable Encryption

    Eun-Kyung Ryu;T. Takagi

Frequent Co-Authors

Fagen Li
Fagen Li University of Electronic Science and Technology of China
Kouichi Sakurai
Kouichi Sakurai Kyushu University
Jianying Zhou
Jianying Zhou Singapore University of Technology and Design
Kaoru Kurosawa
Kaoru Kurosawa Ibaraki University
Feng Bao
Feng Bao Huawei Technologies (China)
Liusheng Huang
Liusheng Huang University of Science and Technology of China
Bart Preneel
Bart Preneel KU Leuven
Tatsuaki Okamoto
Tatsuaki Okamoto NTT (Japan)
Kazuo Takaragi
Kazuo Takaragi National Institute of Advanced Industrial Science and Technology
Johannes Buchmann
Johannes Buchmann Technical University of Darmstadt

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