Koji Chida

According to our database, Koji Chida authored at least 37 papers between 2001 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2023

Fast Large-Scale Honest-Majority MPC for Malicious Adversaries.

Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Daniel Genkin, Yehuda Lindell, Ariel Nof

J. Cryptol., July, 2023

Efficient decision tree training with new data structure for secure multi-party computation.

Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Koji Chida

Proc. Priv. Enhancing Technol., January, 2023

On Rényi Differential Privacy in Statistics-based Synthetic Data Generation.

Takayuki Miura, Toshiki Shibahara, Masanobu Kii, Atsunori Ichikawa, Juko Yamamoto, Koji Chida

J. Inf. Process., 2023

Extended k^m-Anonymity for Randomization Applied to Binary Data.

Masaya Kobayashi, Atsushi Fujioka, Koji Chida

Proceedings of the 20th Annual International Conference on Privacy, Security and Trust, 2023

Communication-Efficient Inner Product Private Join and Compute with Cardinality.

Koji Chida, Koki Hamada, Atsunori Ichikawa, Masanobu Kii, Junichi Tomida

Proceedings of the 2023 ACM Asia Conference on Computer and Communications Security, 2023

2022

Private Intersection-Weighted-Sum.

Koji Chida, Koki Hamada, Atsunori Ichikawa, Masanobu Kii, Junichi Tomida

IACR Cryptol. ePrint Arch., 2022

2019

An Efficient Secure Three-Party Sorting Protocol with an Honest Majority.

Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Naoto Kiribuchi, Benny Pinkas

IACR Cryptol. ePrint Arch., 2019

2018

Password-Based Authentication Protocol for Secret-Sharing-Based Multiparty Computation.

Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018

Efficient Bit-Decomposition and Modulus-Conversion Protocols with an Honest Majority.

Ryo Kikuchi, Dai Ikarashi, Takahiro Matsuda, Koki Hamada, Koji Chida

IACR Cryptol. ePrint Arch., 2018

High-Throughput Secure AES Computation.

Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Benny Pinkas

Proceedings of the 6th Workshop on Encrypted Computing & Applied Homomorphic Cryptography, 2018

2017

Computational SS and conversion protocols in both active and passive settings.

Ryo Kikuchi, Dai Ikarashi, Koji Chida, Koki Hamada, Wakaha Ogata

IET Inf. Secur., 2017

Evaluation of the Anonymity and Utility of De-Identified Clinical Data Based on Japanese Anonymization Criteria.

Eizen Kimura, Satoshi Hasegawa, Koji Chida, Shoko Gamo, Satoshi Irino, Haku Ishida, Yukio Kurihara

Proceedings of the MEDINFO 2017: Precision Healthcare through Informatics, 2017

2016

Evaluation of Secure Computation in a Distributed Healthcare Setting.

Eizen Kimura, Koki Hamada, Ryo Kikuchi, Koji Chida, Kazuya Okamoto, Shirou Manabe, Tomohiro Kuroda, Yasushi Matsumura, Toshihiro Takeda, Naoki Mihara

Proceedings of the Exploring Complexity in Health: An Interdisciplinary Systems Approach - Proceedings of MIE2016 at HEC2016, Munich, Germany, 28 August, 2016

2015

Adaptively and Unconditionally Secure Conversion Protocols between Ramp and Linear Secret Sharing.

Ryo Kikuchi, Dai Ikarashi, Koki Hamada, Koji Chida

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015

Secret Sharing with Share-Conversion: Achieving Small Share-Size and Extendibility to Multiparty Computation.

Ryo Kikuchi, Koji Chida, Dai Ikarashi, Wakaha Ogata, Koki Hamada, Katsumi Takahashi

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015

k-Anonymous Microdata Release via Post Randomisation Method.

Dai Ikarashi, Ryo Kikuchi, Koji Chida, Katsumi Takahashi

Proceedings of the Advances in Information and Computer Security, 2015

Practical Password-Based Authentication Protocol for Secret Sharing Based Multiparty Computation.

Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada

Proceedings of the Cryptology and Network Security - 14th International Conference, 2015

2014

Actively Private and Correct MPC Scheme in t<n/2 from Passively Secure Schemes with Small Overhead.

Dai Ikarashi, Ryo Kikuchi, Koki Hamada, Koji Chida

IACR Cryptol. ePrint Arch., 2014

Oblivious Radix Sort: An Efficient Sorting Algorithm for Practical Secure Multi-party Computation.

Koki Hamada, Dai Ikarashi, Koji Chida, Katsumi Takahashi

IACR Cryptol. ePrint Arch., 2014

2013

Secret Sharing Schemes with Conversion Protocol to Achieve Short Share-Size and Extendibility to Multiparty Computation.

Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada, Katsumi Takahashi

Proceedings of the Information Security and Privacy - 18th Australasian Conference, 2013

2012

Practically Efficient Multi-party Sorting Protocols from Comparison Sort Algorithms.

Koki Hamada, Ryo Kikuchi, Dai Ikarashi, Koji Chida, Katsumi Takahashi

Proceedings of the Information Security and Cryptology - ICISC 2012, 2012

2010

Tag-Based Secure Set-Intersection Protocol and Its Application to Privacy-Enhancing Biometrics.

Koji Chida, Dai Ikarashi, Katsumi Takahashi

Proceedings of the 13th International Conference on Network-Based Information Systems, 2010

2009

Multiparty Computation from El Gamal/Paillier Conversion.

Koji Chida, Hiroaki Kikuchi, Keiichi Hirota, Gembu Morohashi

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009

2008

Secure Multiparty Computation for Comparator Networks.

Gembu Morohashi, Koji Chida, Keiichi Hirota, Hiroaki Kikuchi

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008

Batch Processing for Proofs of Partial Knowledge and Its Applications.

Koji Chida, Go Yamamoto

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008

Privacy Preserving Computations without Public Key Cryptographic Operation.

Koji Chida, Katsumi Takahashi

Proceedings of the Advances in Information and Computer Security, 2008

2007

Non-optimistic Secure Circuit Evaluation Based on ElGamal Encryption and Its Applications.

Koji Chida, Go Yamamoto, Koutarou Suzuki, Shigenori Uchiyama, Noburou Taniguchi, Osamu Shionoiri, Atsushi Kanai

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007

Secure Anonymous Communications with Practical Anonymity Revocation Scheme.

Koji Chida, Osamu Shionoiri, Atsushi Kanai

Proceedings of the Advances in Information and Computer Security, 2007

Batch Processing of Interactive Proofs.

Koji Chida, Go Yamamoto

Proceedings of the Topics in Cryptology, 2007

Efficient Multiparty Computation for Comparator Networks.

Koji Chida, Hiroaki Kikuchi, Gembu Morohashi, Keiichi Hirota

Proceedings of the The Second International Conference on Availability, 2007

2006

Conversion Schemes for Unlinkable Signatures That Include Revocable Unlinkability.

Koji Chida

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006

2005

Flexible-Routing Anonymous Networks Using Optimal Length of Ciphertext.

Koji Chida, Masayuki Abe

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005

Efficient, Non-optimistic Secure Circuit Evaluation Based on the ElGamal Encryption.

Go Yamamoto, Koji Chida, Anderson C. A. Nascimento, Koutarou Suzuki, Shigenori Uchiyama

Proceedings of the Information Security Applications, 6th International Workshop, 2005

DECIDE: a scheme for decentralized identity escrow.

Noburou Taniguchi, Koji Chida, Osamu Shionoiri, Atsushi Kanai

Proceedings of the 2005 Workshop on Digital Identity Management, 2005

2004

An Auction Protocol Preserving Privacy of Losing Bids with a Secure Value Comparison Scheme.

Koji Chida, Kunio Kobayashi, Hikaru Morita

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2004

2002

A New Factoring Method of Integers <i>N</i>=<i>p</i>^r ✕ <i>q</i> for Large <i>r</i>.

Koji Chida, Shigenori Uchiyama, Taiichi Saito

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002

2001

Efficient Sealed-Bid Auctions for Massive Numbers of Bidders with Lump Comparison.

Koji Chida, Kunio Kobayashi, Hikaru Morita

Proceedings of the Information Security, 4th International Conference, 2001