Researcher
Corporate Research ＆ Development Center Toshiba1 Komukai-toshiba-cho, Saiwai-ku Kawasaki-shi, Kanagawa, 212-8582, Japan work : yacheng1.wang [at] toshiba.co.jppersonal : yacheng.wang [at] icloud.com [Resume]
Corporate Research ＆ Development Center Toshiba1 Komukai-toshiba-cho, Saiwai-ku Kawasaki-shi, Kanagawa, 212-8582, Japan work : yacheng1.wang [at] toshiba.co.jppersonal : yacheng.wang [at] icloud.com [Resume]
🔬 Research Interests
・Toshiba R&DOperations research, OptimizationMachine learningMathematical finance
・Doctoral ProgramMultivariate Public-key CryptographyPolynomial Solving
・Master's ProgramMultivariate Public-key Cryptography
・Toshiba R&DOperations research, OptimizationMachine learningMathematical finance
・Doctoral ProgramMultivariate Public-key CryptographyPolynomial Solving
・Master's ProgramMultivariate Public-key Cryptography
💼 Working Experience
・[04.2021~]Researcher,Corporate Research ＆ Development Center Toshibaprojects : Optimal Trading Strategies at the JEPX intraday market [04.2022~, link]Truck berth allocation and total-picking optimization in a warehouse [04.2023~, link]
・[08.2020~02.2021, 08.2019~02.2020, 02.2019~03.2019] Technical Assistant, The University of Tokyo
・[04.2018~03.2021] JSPS research fellowship for young scientists (DC1)
・[10.2017~01.2018] Teaching Assistant"Partial Differential Equations"Graduate School of MathematicsKyushu University
・[04.2017~07.2017] Teaching assistant,"Introduction to Lattice-based Cryptography"Graduate School of MathematicsKyushu University
・[04.2021~]Researcher,Corporate Research ＆ Development Center Toshibaprojects : Optimal Trading Strategies at the JEPX intraday market [04.2022~, link]Truck berth allocation and total-picking optimization in a warehouse [04.2023~, link]
・[08.2020~02.2021, 08.2019~02.2020, 02.2019~03.2019] Technical Assistant, The University of Tokyo
・[04.2018~03.2021] JSPS research fellowship for young scientists (DC1)
・[10.2017~01.2018] Teaching Assistant"Partial Differential Equations"Graduate School of MathematicsKyushu University
・[04.2017~07.2017] Teaching assistant,"Introduction to Lattice-based Cryptography"Graduate School of MathematicsKyushu University
📚 Education
・[2018.04 - 2021.03] Ph.D. of Mathematics in CryptographyDepartment of Mathematical InformaticsGraduate School of Information Science and TechnologyThe University of TokyoSupervisor : Prof. Tsuyoshi Takagi
・[2019.05 - 2019.07] Mobility studentPolSys, Lip6Sorbonne UniversitySupervisor : Prof. Ludovic Perret, Prof. Jean-Charles Faugère
・[2016.04 - 2018.03] Master of Mathematics in CryptographyGraduate School of MathematicsKyushu UniversitySupervisor : Prof. Tsuyoshi Takagi
・[2015.10 - 2016.03] Research StudentGraduate School of MathematicsKyushu UniversitySupervisor : Prof. Tsuyoshi Takagi
・[2011.08 - 2015.07] Bachelor of Engineering in Information SecuritySchool of Telecommunication EngineeringXidian University
・[2018.04 - 2021.03] Ph.D. of Mathematics in CryptographyDepartment of Mathematical InformaticsGraduate School of Information Science and TechnologyThe University of TokyoSupervisor : Prof. Tsuyoshi Takagi
・[2019.05 - 2019.07] Mobility studentPolSys, Lip6Sorbonne UniversitySupervisor : Prof. Ludovic Perret, Prof. Jean-Charles Faugère
・[2016.04 - 2018.03] Master of Mathematics in CryptographyGraduate School of MathematicsKyushu UniversitySupervisor : Prof. Tsuyoshi Takagi
・[2015.10 - 2016.03] Research StudentGraduate School of MathematicsKyushu UniversitySupervisor : Prof. Tsuyoshi Takagi
・[2011.08 - 2015.07] Bachelor of Engineering in Information SecuritySchool of Telecommunication EngineeringXidian University
📰 Publications
Conference Papers
・(short paper) Simple Matrix Signature SchemeChangze Yin, Yacheng Wang, Tsuyoshi TakagiIWSEC2021[Springer]
・Revisiting the Minrank Attack on Multivariate CryptographyYacheng Wang, Yasuhiko Ikematsu, Shuhei Nakamura, Tsuyoshi TakagiWISA2020[Springer] [pdf]
・Multivariate Encryption Schemes Based on Polynomial Equations over Rational NumbersTakanori Yasuda, Yacheng Wang, Tsuyoshi TakagiPQCrypto 2020[Springer] [pdf] [recorded YouTube][live talk]
・A Structural Attacks on Block-Anti-Circulant UOV at SAC2019Hiroki Furue, Koha Kinjo, Yasuhiko Ikematsu, Yacheng Wang, Tsuyoshi TakagiPQCrypto 2020[Springer] [pdf] [recorded YouTube][live talk]
・Efficient Decryption Algorithms for Extension Field Cancellation Type Encryption SchemesYacheng Wang, Yasuhiko Ikematsu, Dung H. Duong, Tsuyoshi TakagiACISP 2018 [Springer] [pdf]
・Revisiting the Cubic UOV Signature SchemeDung H. Duong, Albrecht Petzoldt, Yacheng Wang, Tsuyoshi TakagiICISC 2016[Springer] [pdf]
Journal Papers
・A New Analysis of the Kipnis-Shamir Method Solving the MinRank ProblemShuhei Nakamura, Yacheng Wang, Yasuhiko Ikematsu[IEICE] [pdf]2023
・New Complexity Estimation on the Rainbow-Band-Separation AttackShuhei Nakamura, Yasuhiko Ikematsu, Yacheng Wang, Jintai Ding, Tsuyoshi Takagi[Elsevier]2021
・A new encryption scheme for multivariate quadratic systemsJiahui Chen, Jie Ling, Jianting Ning, Terry Shue Chien Lau, Yacheng WangTheoretical Computer Science[Elsevier] [pdf]2020
・The Secure Parameters and Efficient Decryption Algorithm for Multivariate Public Key Cryptosystems EFCYacheng Wang, Yasuhiko Ikematsu, Dung H. Duong, Tsuyoshi Takagi[IEICE] [pdf]2019
Preprints
・Analysis on the MinRank Attack using Kipnis-Shamir Method Against RainbowShuhei Nakamura, Yacheng Wang, Yasuhiko Ikematsu[eprint] [pdf]
・New Complexity Estimation on the Rainbow-Band-Separation AttackShuhei Nakamura, Yasuhiko Ikematsu, Yacheng Wang, Jintai Ding, Tsuyoshi Takagi[eprint] [pdf]
Presentation with abstract
・First Fall Degree and Weil Descent on the Multivariate Quadratic ProblemYacheng Wang, Takanori Yasuda, Tsuyoshi TakagiCECC2021[link] [Abstract pdf]
Conference Papers
・(short paper) Simple Matrix Signature SchemeChangze Yin, Yacheng Wang, Tsuyoshi TakagiIWSEC2021[Springer]
・Revisiting the Minrank Attack on Multivariate CryptographyYacheng Wang, Yasuhiko Ikematsu, Shuhei Nakamura, Tsuyoshi TakagiWISA2020[Springer] [pdf]
・Multivariate Encryption Schemes Based on Polynomial Equations over Rational NumbersTakanori Yasuda, Yacheng Wang, Tsuyoshi TakagiPQCrypto 2020[Springer] [pdf] [recorded YouTube][live talk]
・A Structural Attacks on Block-Anti-Circulant UOV at SAC2019Hiroki Furue, Koha Kinjo, Yasuhiko Ikematsu, Yacheng Wang, Tsuyoshi TakagiPQCrypto 2020[Springer] [pdf] [recorded YouTube][live talk]
・Efficient Decryption Algorithms for Extension Field Cancellation Type Encryption SchemesYacheng Wang, Yasuhiko Ikematsu, Dung H. Duong, Tsuyoshi TakagiACISP 2018 [Springer] [pdf]
・Revisiting the Cubic UOV Signature SchemeDung H. Duong, Albrecht Petzoldt, Yacheng Wang, Tsuyoshi TakagiICISC 2016[Springer] [pdf]
Journal Papers
・A New Analysis of the Kipnis-Shamir Method Solving the MinRank ProblemShuhei Nakamura, Yacheng Wang, Yasuhiko Ikematsu[IEICE] [pdf]2023
・New Complexity Estimation on the Rainbow-Band-Separation AttackShuhei Nakamura, Yasuhiko Ikematsu, Yacheng Wang, Jintai Ding, Tsuyoshi Takagi[Elsevier]2021
・A new encryption scheme for multivariate quadratic systemsJiahui Chen, Jie Ling, Jianting Ning, Terry Shue Chien Lau, Yacheng WangTheoretical Computer Science[Elsevier] [pdf]2020
・The Secure Parameters and Efficient Decryption Algorithm for Multivariate Public Key Cryptosystems EFCYacheng Wang, Yasuhiko Ikematsu, Dung H. Duong, Tsuyoshi Takagi[IEICE] [pdf]2019
Preprints
・Analysis on the MinRank Attack using Kipnis-Shamir Method Against RainbowShuhei Nakamura, Yacheng Wang, Yasuhiko Ikematsu[eprint] [pdf]
・New Complexity Estimation on the Rainbow-Band-Separation AttackShuhei Nakamura, Yasuhiko Ikematsu, Yacheng Wang, Jintai Ding, Tsuyoshi Takagi[eprint] [pdf]
Presentation with abstract
・First Fall Degree and Weil Descent on the Multivariate Quadratic ProblemYacheng Wang, Takanori Yasuda, Tsuyoshi TakagiCECC2021[link] [Abstract pdf]
👨🏻🏫 Presentations without Peer Review
・倉庫のトラックバース割当最適化問題に対する近似アルゴリズム王亜成、吉田琢史日本オペレーションズ・リサーチ学会2024年春季研究発表会
・マーケットインパクトとタイミングリスクを考慮した時間前市場取引戦略技術王亜成、國信茂太、愛須英之、冨田将嗣、吉田琢史、本宮拓也2023年電子・情報・システム部門大会
・倉庫のトラックバース割当最適化問題に対する近似アルゴリズム王亜成、吉田琢史日本オペレーションズ・リサーチ学会2024年春季研究発表会
・マーケットインパクトとタイミングリスクを考慮した時間前市場取引戦略技術王亜成、國信茂太、愛須英之、冨田将嗣、吉田琢史、本宮拓也2023年電子・情報・システム部門大会
🏆 Honors and Awards
・JSPS research fellowship for young scientists (DC1)[2018.04 - 2021.03]
・Erasmus+ Mobility Scholarship[2019.05 - 2019.07]
・CSS2018 Best Student Paper Award[2018.10.24]
・JSPS research fellowship for young scientists (DC1)[2018.04 - 2021.03]
・Erasmus+ Mobility Scholarship[2019.05 - 2019.07]
・CSS2018 Best Student Paper Award[2018.10.24]
🌐 Language Skills
Chinese (Native), English (Professional), Japanese (Professional), French (Limited)
Chinese (Native), English (Professional), Japanese (Professional), French (Limited)