Yohei Watanabe

Efficient Dynamic Searchable Encryption with Forward Privacy under the Decent Leakage

Yohei Watanabe, Kazuma Ohara, Mitsugu Iwamoto, Kazuo Ohta

Proc. of ACM CODASPY 2022, 312-323, Apr, 2022 Peer-reviewedLead authorCorresponding author
Efficient Identity-Based Encryption with Hierarchical Key-Insulation from HIBE

Keita Emura, Atsushi Takayasu, Yohei Watanabe

Designs, Codes and Cryptography, 89(10) 2397-2431, Oct, 2021 Peer-reviewedLast authorCorresponding author
Efficient Revocable Identity-based Encryption with Short Public Parameters

Keita Emura, Jae Hong Seo, Yohei Watanabe

Theoretical Computer Science, 863 127-155, Apr, 2021 Peer-reviewedLast authorCorresponding author
Key-Updatable Public-Key Encryption with Keyword Search (Or: How to Realize PEKS with Efficient Key Updates for IoT Environments)

Hiroaki Anada, Akira Kanaoka, Natsume Matsuzaki, Yohei Watanabe

International Journal of Information Security, 19(1) 15-38, Feb, 2020 Peer-reviewedLast authorCorresponding author
Identity-based Encryption with Hierarchical Key Insulation in the Standard Model

Junji Shikata, Yohei Watanabe

Des. Codes Cryptography, 87(5) 1005-1033, May, 2019 Peer-reviewedCorresponding author

Major Misc.

コンピューターの裏側で現代社会を支えるアルゴリズム

太田和夫, 岩本貢, 渡邉洋平

ニュートン別冊新AI時代の数学, 76-91, Sep, 2023
暗号個人情報を守る数学

太田和夫, 岩本貢, 渡邉洋平

ニュートン別冊数学の世界現代編 (増補第２版), 98-115, Mar, 2021
検索可能暗号：データベースシステムの安全な運用に向けて

渡邉洋平

ケミカルエンジニヤリング, 65(9) 552-560, Sep, 2020 InvitedLead authorCorresponding author
国際会議参加報告: 4th Heidelberg Laureate Forum

渡邉洋平

Fundamentals Review, 10(3) 220-221, 2017
情報理論的暗号技術について

四方順司, 渡邉洋平

情報処理, 55(3) 260-267, Mar, 2014 Invited

Public-Key Cryptography – PKC 2022, Part II

Goichiro Hanaoka, Junji Shikata, Yohei Watanabe (Role: Joint editor)

Mar, 2022
Public-Key Cryptography – PKC 2022, Part I

Goichiro Hanaoka, Junji Shikata, Yohei Watanabe (Role: Joint editor)

Springer, Mar, 2022
Proceedings of the 5th ACM ASIA Public-Key Cryptography Workshop, APKC@AsiaCCS

Keita Emura, Jae Hong Seo, Yohei Watanabe (Role: Joint editor)

ACM, 2018

Recent Progress in Searchable Encryption

渡邉洋平

IMI共同利用研究集会高度化する暗号技術と数学的技法の進展, Nov 8, 2022 Invited
ファイルの安全な追加・削除・検索が可能な暗号システム

渡邉洋平

JST新技術説明会, Jul 18, 2019 Invited
情報理論的安全性に基づく放送型暗号～古典的結果と最近の進展～

渡邉洋平

情報理論研究会, 2017 Invited
Unconditionally Secure Revocable Storage

Yohei Watanabe

IWSEC 2015, 2015 Invited
Timed-Release Cryptography -Two Theoretical Approaches to Achieve Security

Yohei Watanabe

JSPS-DST Asian Academic Seminar 2013, 2013 Invited

十分統計量に基づくシミュレーションベース安全性の深化

科学研究費助成事業基盤研究(B), 基盤研究(B), 日本学術振興会, Apr, 2021 - Mar, 2025

岩本貢, 四方順司, 渡邉洋平
広範な検索機能と高い効率性を両立する秘匿検索技術の実現

科学研究費助成事業基盤研究(B), 基盤研究(B), 日本学術振興会, Apr, 2021 - Mar, 2025

渡邉洋平, 矢内直人
Resilience Enhancement of IoT Ecosystem by Cryptographic Technologies

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (S), Grant-in-Aid for Scientific Research (S), Japan Society for the Promotion of Science, Jun, 2018 - Mar, 2023

Kazuo Sakiyama, Shoichi Hirose, Yang Li, Mitsugu Iwamoto, Yuichi Komano, Takeshi Sugawara, Noriyuki Miura, Kazuo Ohta, Yohei Watanabe
Searchable Symmetric Encryption for a Long Term Use

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2018 - Mar, 2022

Kazuo Ohta, Mitsugu Iwamoto, Yohei Watanabe
推測秘匿性に基づく情報理論的暗号理論の新展開

科学研究費助成事業基盤研究(B), 基盤研究(B), 日本学術振興会, Apr, 2017 - Mar, 2021

岩本貢, 四方順司, 渡邉洋平