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2020 – today
- 2024
[c21]Kabuto Okajima
, Koji Chida:
A Study on Anonymization Through Participation in iPWS Cup 2023. IWSEC 2024: 297-306- [c20]Koji Chida, Susumu Kakuta, Hiroyuki Itakura, Ichiro Ishihara, Kosuke Yoshioka, Hiroshi Takeuchi:
Experimental Evaluation for Risk Assessment of Privacy Preserving Synthetic Data. MDAI 2024: 224-236 - 2023
- [j15]Takayuki Miura, Toshiki Shibahara, Masanobu Kii, Atsunori Ichikawa, Juko Yamamoto, Koji Chida:
On Rényi Differential Privacy in Statistics-based Synthetic Data Generation. J. Inf. Process. 31: 812-820 (2023) - [j14]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): 15 (2023) - [j13]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): 343-364 (2023) - [c19]Koji Chida, Koki Hamada, Atsunori Ichikawa, Masanobu Kii, Junichi Tomida:
Communication-Efficient Inner Product Private Join and Compute with Cardinality. AsiaCCS 2023: 678-688 - [c18]Masaya Kobayashi, Atsushi Fujioka, Koji Chida:
Extended km-Anonymity for Randomization Applied to Binary Data. PST 2023: 1-7 - [i9]Takayuki Miura, Toshiki Shibahara, Masanobu Kii, Atsunori Ichikawa, Juko Yamamoto, Koji Chida:
On Rényi Differential Privacy in Statistics-Based Synthetic Data Generation. CoRR abs/2303.17849 (2023) - 2022
- [i8]Koji Chida, Koki Hamada, Atsunori Ichikawa, Masanobu Kii, Junichi Tomida:
Private Intersection-Weighted-Sum. IACR Cryptol. ePrint Arch. 2022: 338 (2022) - 2021
- [i7]Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Koji Chida:
Efficient decision tree training with new data structure for secure multi-party computation. CoRR abs/2112.12906 (2021)
2010 – 2019
- 2019
- [i6]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: 695 (2019) - 2018
- [j12]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. 101-A(1): 51-63 (2018) - [c17]Ryo Kikuchi, Dai Ikarashi, Takahiro Matsuda, Koki Hamada, Koji Chida:
Efficient Bit-Decomposition and Modulus-Conversion Protocols with an Honest Majority. ACISP 2018: 64-82 - [c16]Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Benny Pinkas:
High-Throughput Secure AES Computation. WAHC@CCS 2018: 13-24 - [c15]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: 34-64 - [i5]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: 387 (2018) - [i4]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: 570 (2018) - 2017
- [j11]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): 287-293 (2017) - [c14]Eizen Kimura, Satoshi Hasegawa, Koji Chida, Shoko Gamo, Satoshi Irino, Haku Ishida, Yukio Kurihara:
Evaluation of the Anonymity and Utility of De-Identified Clinical Data Based on Japanese Anonymization Criteria. MedInfo 2017: 1303 - [e1]Satoshi Obana, Koji Chida:
Advances in Information and Computer Security - 12th International Workshop on Security, IWSEC 2017, Hiroshima, Japan, August 30 - September 1, 2017, Proceedings. Lecture Notes in Computer Science 10418, Springer 2017, ISBN 978-3-319-64199-7 [contents] - 2016
- [c13]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: 152-156 - 2015
- [j10]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. 98-A(1): 213-222 (2015) - [j9]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. 98-A(1): 223-231 (2015) - [c12]Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada:
Practical Password-Based Authentication Protocol for Secret Sharing Based Multiparty Computation. CANS 2015: 179-196 - [c11]Dai Ikarashi, Ryo Kikuchi, Koji Chida, Katsumi Takahashi:
k-Anonymous Microdata Release via Post Randomisation Method. IWSEC 2015: 225-241 - [i3]Dai Ikarashi, Ryo Kikuchi, Koji Chida, Katsumi Takahashi:
k-anonymous Microdata Release via Post Randomisation Method. CoRR abs/1504.05353 (2015) - 2014
- [i2]Koki Hamada, Dai Ikarashi, Koji Chida, Katsumi Takahashi:
Oblivious Radix Sort: An Efficient Sorting Algorithm for Practical Secure Multi-party Computation. IACR Cryptol. ePrint Arch. 2014: 121 (2014) - [i1]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: 304 (2014) - 2013
- [c10]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: 419-434 - 2012
- [c9]Koki Hamada, Ryo Kikuchi, Dai Ikarashi, Koji Chida, Katsumi Takahashi:
Practically Efficient Multi-party Sorting Protocols from Comparison Sort Algorithms. ICISC 2012: 202-216 - 2010
- [c8]Koji Chida, Dai Ikarashi, Katsumi Takahashi:
Tag-Based Secure Set-Intersection Protocol and Its Application to Privacy-Enhancing Biometrics. NBiS 2010: 535-540
2000 – 2009
- 2009
- [j8]Koji Chida, Hiroaki Kikuchi, Keiichi Hirota, Gembu Morohashi:
Multiparty Computation from El Gamal/Paillier Conversion. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 92-A(1): 137-146 (2009) - 2008
- [j7]Koji Chida, Go Yamamoto:
Batch Processing for Proofs of Partial Knowledge and Its Applications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 91-A(1): 150-159 (2008) - [j6]Gembu Morohashi, Koji Chida, Keiichi Hirota, Hiroaki Kikuchi:
Secure Multiparty Computation for Comparator Networks. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 91-A(9): 2349-2355 (2008) - [c7]Koji Chida, Katsumi Takahashi:
Privacy Preserving Computations without Public Key Cryptographic Operation. IWSEC 2008: 184-200 - 2007
- [j5]Koji Chida, Go Yamamoto, Koutarou Suzuki, Shigenori Uchiyama, Noburou Taniguchi, Osamu Shionoiri, Atsushi Kanai:
Non-optimistic Secure Circuit Evaluation Based on ElGamal Encryption and Its Applications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 90-A(1): 128-138 (2007) - [c6]Koji Chida, Hiroaki Kikuchi, Gembu Morohashi, Keiichi Hirota:
Efficient Multiparty Computation for Comparator Networks. ARES 2007: 1183-1189 - [c5]Koji Chida, Go Yamamoto:
Batch Processing of Interactive Proofs. CT-RSA 2007: 196-207 - [c4]Koji Chida, Osamu Shionoiri, Atsushi Kanai:
Secure Anonymous Communications with Practical Anonymity Revocation Scheme. IWSEC 2007: 352-364 - 2006
- [j4]Koji Chida:
Conversion Schemes for Unlinkable Signatures That Include Revocable Unlinkability. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 89-A(1): 90-98 (2006) - 2005
- [j3]Koji Chida, Masayuki Abe:
Flexible-Routing Anonymous Networks Using Optimal Length of Ciphertext. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 88-A(1): 211-221 (2005) - [c3]Noburou Taniguchi, Koji Chida, Osamu Shionoiri, Atsushi Kanai:
DECIDE: a scheme for decentralized identity escrow. Digital Identity Management 2005: 37-45 - [c2]Go Yamamoto, Koji Chida, Anderson C. A. Nascimento, Koutarou Suzuki, Shigenori Uchiyama:
Efficient, Non-optimistic Secure Circuit Evaluation Based on the ElGamal Encryption. WISA 2005: 328-342 - 2004
- [j2]Koji Chida, Kunio Kobayashi, Hikaru Morita:
An Auction Protocol Preserving Privacy of Losing Bids with a Secure Value Comparison Scheme. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 87-A(1): 173-181 (2004) - 2002
- [j1]Koji Chida, Shigenori Uchiyama, Taiichi Saito:
A New Factoring Method of Integers N=pr ✕ q for Large r. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 85-A(5): 1050-1053 (2002) - 2001
- [c1]Koji Chida, Kunio Kobayashi, Hikaru Morita:
Efficient Sealed-Bid Auctions for Massive Numbers of Bidders with Lump Comparison. ISC 2001: 408-419
Coauthor Index
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