Ryo Kikuchi

Publication Activity (10 Years)

Years Active: 2010-2024
Publications (10 Years): 31

Top Topics

Support Vector Machine

Optimization Scheme

Top Venues

IACR Cryptol. ePrint Arch.

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

Publications

Gilad Asharov, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Ariel Nof, Benny Pinkas, Junichi Tomida
Secure Statistical Analysis on Multiple Datasets: Join and Group-By. IACR Cryptol. ePrint Arch. 2024 (2024)
Atsunori Ichikawa, Ilan Komargodski, Koki Hamada, Ryo Kikuchi, Dai Ikarashi
3-Party Secure Computation for RAMs: Optimal and Concretely Efficient. IACR Cryptol. ePrint Arch. 2023 (2023)
Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Daniel Genkin, Yehuda Lindell, Ariel Nof
Fast Large-Scale Honest-Majority MPC for Malicious Adversaries. J. Cryptol. 36 (3) (2023)
Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Koji Chida
Efficient decision tree training with new data structure for secure multi-party computation. Proc. Priv. Enhancing Technol. 2023 (1) (2023)
Atsunori Ichikawa, Ilan Komargodski, Koki Hamada, Ryo Kikuchi, Dai Ikarashi
3-Party Secure Computation for RAMs: Optimal and Concretely Efficient. TCC (1) (2023)
Ryo Kikuchi, Yuji Iwahori, Kenji Funahashi, Manas Kamal Bhuyan, Aili Wang, Naotaka Ogasawara, Kunio Kasugai
Polyp Size and Shape Estimation by Using an Endoscopic Hood Information. KES (2023)
Gilad Asharov, Koki Hamada, Ryo Kikuchi, Ariel Nof, Benny Pinkas, Junichi Tomida
Secure Statistical Analysis on Multiple Datasets: Join and Group-By. CCS (2023)
Gilad Asharov, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Ariel Nof, Benny Pinkas, Katsumi Takahashi, Junichi Tomida
Efficient Secure Three-Party Sorting with Applications to Data Analysis and Heavy Hitters. CCS (2022)
Gilad Asharov, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Ariel Nof, Benny Pinkas, Katsumi Takahashi, Junichi Tomida
Efficient Secure Three-Party Sorting with Applications to Data Analysis and Heavy Hitters. IACR Cryptol. ePrint Arch. 2022 (2022)
Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Takahiro Matsuda, Ibuki Mishina, Hiraku Morita, Jacob C. N. Schuldt
Adam in Private: Secure and Fast Training of Deep Neural Networks with Adaptive Moment Estimation. Proc. Priv. Enhancing Technol. 2022 (4) (2022)
Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Takahiro Matsuda, Ibuki Mishina, Hiraku Morita, Jacob C. N. Schuldt
Adam in Private: Secure and Fast Training of Deep Neural Networks with Adaptive Moment Estimation. IACR Cryptol. ePrint Arch. 2021 (2021)
Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Takahiro Matsuda, Ibuki Mishina, Hiraku Morita, Jacob C. N. Schuldt
Adam in Private: Secure and Fast Training of Deep Neural Networks with Adaptive Moment Estimation. CoRR (2021)
Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Koji Chida
Efficient decision tree training with new data structure for secure multi-party computation. CoRR (2021)
Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Naoto Kiribuchi, Benny Pinkas
An Efficient Secure Three-Party Sorting Protocol with an Honest Majority. IACR Cryptol. ePrint Arch. 2019 (2019)
Ryo Kikuchi, Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ai Ishida, Takahiro Matsuda, Yusuke Sakai, Jacob C. N. Schuldt
Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation. IACR Cryptol. ePrint Arch. 2019 (2019)
Atsunori Ichikawa, Wakaha Ogata, Koki Hamada, Ryo Kikuchi
Efficient Secure Multi-Party Protocols for Decision Tree Classification. ACISP (2019)
Ryo Kikuchi, Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ai Ishida, Takahiro Matsuda, Yusuke Sakai, Jacob C. N. Schuldt
Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation. ACISP (2019)
Toshiki Saito, Ryo Kikuchi, Takenori Atsumi
Optimization Method for Controller Parameters Using Support Vector Machine. ICIT (2019)
Ryo Kikuchi, Dai Ikarashi, Takahiro Matsuda, Koki Hamada, Koji Chida
Efficient Bit-Decomposition and Modulus-Conversion Protocols with an Honest Majority. IACR Cryptol. ePrint Arch. 2018 (2018)
Koji Chida, Daniel Genkin, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Yehuda Lindell, Ariel Nof
Fast Large-Scale Honest-Majority MPC for Malicious Adversaries. CRYPTO (3) (2018)
Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Benny Pinkas
High-Throughput Secure AES Computation. WAHC@CCS (2018)
Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada
Password-Based Authentication Protocol for Secret-Sharing-Based Multiparty Computation. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2018)
Koji Chida, Daniel Genkin, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Yehuda Lindell, Ariel Nof
Fast Large-Scale Honest-Majority MPC for Malicious Adversaries. IACR Cryptol. ePrint Arch. 2018 (2018)
Shinsuke Ito, Toru Yoshitake, Ryo Kikuchi, Fumika Akutsu
Comparative Study of the Effectiveness of Perturbative Methods for Creating Official Microdata in Japan. PSD (2018)
Ryo Kikuchi, Dai Ikarashi, Takahiro Matsuda, Koki Hamada, Koji Chida
Efficient Bit-Decomposition and Modulus-Conversion Protocols with an Honest Majority. ACISP (2018)
Caleb Horst, Ryo Kikuchi, Keita Xagawa
Cryptanalysis of Comparable Encryption in SIGMOD'16. SIGMOD Conference (2017)
Ryo Kikuchi, Dai Ikarashi, Koji Chida, Koki Hamada, Wakaha Ogata
Computational SS and conversion protocols in both active and passive settings. IET Inf. Secur. 11 (5) (2017)
Carmen Kempka, Ryo Kikuchi, Koutarou Suzuki
How to Circumvent the Two-Ciphertext Lower Bound for Linear Garbling Schemes. IACR Cryptol. ePrint Arch. 2017 (2017)
Eizen Kimura, Koki Hamada, Ryo Kikuchi, Koji Chida, Kazuya Okamoto, Shirou Manabe, Tomohiro Kuroda, Yasushi Matsumura, Toshihiro Takeda, Naoki Mihara
Evaluation of Secure Computation in a Distributed Healthcare Setting. MIE (2016)
Carmen Kempka, Ryo Kikuchi, Susumu Kiyoshima, Koutarou Suzuki
Garbling Scheme for Formulas with Constant Size of Garbled Gates. IACR Cryptol. ePrint Arch. 2016 (2016)
Carmen Kempka, Ryo Kikuchi, Koutarou Suzuki
How to Circumvent the Two-Ciphertext Lower Bound for Linear Garbling Schemes. ASIACRYPT (2) (2016)
Dai Ikarashi, Ryo Kikuchi, Koji Chida, Katsumi Takahashi
k-Anonymous Microdata Release via Post Randomisation Method. IWSEC (2015)
Ryo Kikuchi, Dai Ikarashi, Koki Hamada, Koji Chida
Adaptively and Unconditionally Secure Conversion Protocols between Ramp and Linear Secret Sharing. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2015)
Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada
Practical Password-Based Authentication Protocol for Secret Sharing Based Multiparty Computation. CANS (2015)
Carmen Kempka, Ryo Kikuchi, Susumu Kiyoshima, Koutarou Suzuki
Garbling Scheme for Formulas with Constant Size of Garbled Gates. ASIACRYPT (1) (2015)
Ryo Kikuchi, Koji Chida, Dai Ikarashi, Wakaha Ogata, Koki Hamada, Katsumi Takahashi
Secret Sharing with Share-Conversion: Achieving Small Share-Size and Extendibility to Multiparty Computation. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2015)
Ryo Kikuchi, Kohei Hosaki, Mikio Hasegawa
Implementation and evaluation of a combined optimization scheme for routing and channel assignment in wireless mesh networks. CCNC (2015)
Dai Ikarashi, Ryo Kikuchi, Koji Chida, Katsumi Takahashi
k-anonymous Microdata Release via Post Randomisation Method. CoRR (2015)
Dai Ikarashi, Ryo Kikuchi, Koki Hamada, Koji Chida
Actively Private and Correct MPC Scheme in t<n/2 from Passively Secure Schemes with Small Overhead. IACR Cryptol. ePrint Arch. 2014 (2014)
Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada, Katsumi Takahashi
Secret Sharing Schemes with Conversion Protocol to Achieve Short Share-Size and Extendibility to Multiparty Computation. ACISP (2013)
Koki Hamada, Ryo Kikuchi, Dai Ikarashi, Koji Chida, Katsumi Takahashi
Practically Efficient Multi-party Sorting Protocols from Comparison Sort Algorithms. ICISC (2012)
Ryo Kikuchi, Atsushi Fujioka, Yoshiaki Okamoto, Taiichi Saito
Strong Security Notions for Timed-Release Public-Key Encryption Revisited. ICISC (2011)
Ryo Kikuchi, Le Trieu Phong, Wakaha Ogata
A Framework for Constructing Convertible Undeniable Signatures. ProvSec (2010)