論文

• Hiroki Yamamuro, Keisuke Hara, Masayuki Tezuka, Yusuke Yoshida, Keisuke Tanaka. Forward Secure Message Franking with Updatable Reporting Tags, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 106, 9, pp. 1164-1176, Jan. 2023.
• Yi Lu, Keisuke Hara, Keisuke Tanaka. Multikey Verifiable Homomorphic Encryption., IEEE Access, 10, Aug. 2022.
• Keisuke Hara, Takahiro Matsuda, Keisuke Tanaka. Receiver Selective Opening Chosen Ciphertext Secure Identity-Based Encryption, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Volume E105, Issue 3, Page 160-172, Mar. 2022.
• Keisuke Hara, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka. Generic transformation from broadcast encryption to round-optimal deniable ring authentication, Designs, Codes and Cryptography, Vol. 90, 277–316, Feb. 2022.
• Yi Lu, Keisuke Hara, Keisuke Tanaka. Receiver Selective Opening CCA Secure Public Key Encryption from Various Assumptions, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, E104, 9, pp. 1206-1218, Sept. 2021.
• Kyohei Sudo, Masayuki Tezuka, Keisuke Hara, Yusuke Yoshida, Keisuke Tanaka. Watermarkable Signature with Computational Function Preserving, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, E104., 9, pp. 1255-1270, Sept. 2021.
• Keisuke Hara, Keisuke Tanaka. Tightly secure ring signatures in the standard model, Theoretical Computer Science, Volume 892, Page 208-237, Sept. 2021.
• KEISUKE TANAKA, Keisuke Hara. Ring Signature With Unconditional Anonymity in the Plain Model, IEEE Access, Vol. 9, pp. 7762-7774, Jan. 2021.
• KEISUKE TANAKA, Keisuke Hara, Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka. Simulation-based receiver selective opening CCA secure PKE from standard computational assumptions, Theoretical Computer Science, Volume 795, Page 570-597, Nov. 2019.

国際会議発表 (査読有り)

• Hiroki Yamamuro, Keisuke Hara, Masayuki Tezuka, Yusuke Yoshida, Keisuke Tanaka. Forward Secure Message Franking, ICISC 2021:International Conference on Information Security and Cryptology, Information Security and Cryptology – ICISC 2021, 339–358, July 2022.
• Yi Lu, Keisuke Hara, Kazuma Ohara, Jacob C. N. Schuldt, Keisuke Tanaka:. Efficient Two-Party Exponentiation from Quotient Transfer, ACNS 2022: Applied Cryptography and Network Security, June 2022.
• Keisuke Hara, Takahiro Matsuda, Keisuke Tanaka. Receiver Selective Opening Chosen Ciphertext Secure Identity-Based Encryption, the 8th ACM on ASIA Public-Key Cryptography Workshop, Proceedings of the 8th ACM on ASIA Public-Key Cryptography Workshop, pp. 51-59, May 2021.
• Daiki Hiraga, Keisuke Hara, Masayuki Tezuka, Yusuke Yoshida, Keisuke Tanaka. Security Definitions on Time-Lock Puzzles, International Conference on Information Security and Cryptology, Information Security and Cryptology – ICISC 2020, pp. 3-15, Feb. 2021.
• Kyohei Sudo, Masayuki Tezuka, Keisuke Hara, Yusuke Yoshida, Keisuke Tanaka. Watermarkable Signature with Computational Function Preserving, Provable and Practical Security - 14th International Conference, Provable and Practical Security, pp. 124-144, Nov. 2020.
• Yi Lu, Keisuke Hara, Keisuke Tanaka. Receiver Selective Opening CCA Secure Public Key Encryption from Various Assumptions, International Conference on Provable Security, Provable and Practical Security, pp. 213-233, Nov. 2020.
• KEISUKE TANAKA, Keisuke Hara, Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka. Simulation-Based Receiver Selective Opening CCA Secure PKE from Standard Computational Assumptions, Security and Cryptography for Networks(SCN 2018), pp. 140-159, Sept. 2018.

国内会議発表 (査読なし・不明)

• Kyohei Sudo, Masayuki Tezuka, Keisuke Hara, Yusuke Yoshida, KEISUKE TANAKA. A Quantum Search-to-Decision Reduction for the LPN Problem, 2022年暗号と情報セキュリティシンポジウム, Jan. 2022.
• 数藤 恭平, 手塚 真徹, 原 啓祐, 吉田 雄祐, 田中 圭介. 計算量的機能保存性をもつ電子透かし署名, Jan. 2021.
• 山室宏貴, 原啓祐, 手塚真徹, 吉田雄祐, 田中圭介. フォワード安全な認証付きコミッティング暗号, 情報とセキュリティシンポジウム(SCIS2021), Jan. 2021.
• 田中圭介, 平賀大揮, 手塚真徹, 原啓祐, 吉田雄祐. タイムロックパズルに対する安全性定義の考察, 2020年暗号と情報セキュリティシンポジウム, Jan. 2020.
• KEISUKE TANAKA, Keisuke Hara, Yi Lu. Receiver Selective Opening CCA Secure Public-key Encryption from Weaker Assumptions, 2020年暗号と情報セキュリティシンポジウム, Jan. 2020.
• 田中圭介, 数藤恭平, 手塚真徹, 原啓祐, 吉田雄祐. 署名回路に対する秘匿可能な電子透かし, 2020年暗号と情報セキュリティシンポジウム, Jan. 2020.
• 田中圭介, 原 啓祐, 北川 冬航, 松田 隆宏, 花岡 悟一郎. 標準的仮定に基づくSIM-RSO-CCA安全性を満たす公開鍵暗号方式, 2018年情報とセキュリティシンポジウム, Jan. 2018.
• 田中圭介, 原啓祐, Mario. CryptoNoteに対するサイズ効率化, 冬のLAシンポジウム2016, Feb. 2016.

学位論文

• Anonymous Authentication over Ad-Hoc Groups,  Exam Summary,  Doctor (Science),  Tokyo Institute of Technology,  2022/03/26,   
• Anonymous Authentication over Ad-Hoc Groups,  Summary,  Doctor (Science),  Tokyo Institute of Technology,  2022/03/26,   
• Anonymous Authentication over Ad-Hoc Groups,  Thesis,  Doctor (Science),  Tokyo Institute of Technology,  2022/03/26,   

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