Privacy-Preserving Inference of Machine Learning Models without Retraining.

Wakaha Ogata

Guilherme T. S. Sato Wakaha Ogata Privacy-Preserving Inference of Machine Learning Models without Retraining. 2026 327-338 109 IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 3 https://doi.org/10.1587/transfun.2025cip0011 db/journals/ieiceta/ieiceta109.html#SatoO26 streams/journals/ieiceta

Fukang Liu Vaibhav Dixit Daisuke Yamamoto Wakaha Ogata Santanu Sarkar 0001 Willi Meier Efficient Polynomial Evaluation over Structured Space and Application to Polynomial Method. 2026 40 2026 IACR Cryptol. ePrint Arch. https://eprint.iacr.org/2026/040 db/journals/iacr/iacr2026.html#LiuDYOSM26 streams/journals/iacr

Wakaha Ogata Toi Tomita Kenta Takahashi Masakatsu Nishigaki How to Use Your Brain for Cryptography Without Trustworthy Machines. 148353-148364 2025 13 IEEE Access https://doi.org/10.1109/ACCESS.2025.3601597 db/journals/access/access13.html#OgataTTN25 streams/journals/access

Koki Matsui Shoma Kanzaki Wakaha Ogata Keitaro Hashimoto Round-Optimal Authenticated Key Exchange with Full Forward Privacy. 12 2025 2 IACR Commun. Cryptol. 2 https://doi.org/10.62056/a0iv7ta5v db/journals/cic/cic2.html#MatsuiKOH25 streams/journals/cic

Ryunosuke Harada Wataru Hatakeyama Sena Enomoto Kakeru Hasegawa Toi Tomita Kenta Takahashi Wakaha Ogata Masakatsu Nishigaki Design and Evaluation of User Interface for Server-Aided In-Brain Signature - for Server-Aided In-Brain Signature. 64-74 2025 HCI (63) https://doi.org/10.1007/978-3-031-94159-7_8 conf/hci/2025-63 db/conf/hci/hci2025-63.html#HaradaHEHTTON25 streams/conf/hci

Wakaha Ogata Toi Tomita Kenta Takahashi Masakatsu Nishigaki How to use your brain for cryptography without trustworthy machines. 26 2025 2025 IACR Cryptol. ePrint Arch. https://eprint.iacr.org/2025/026 db/journals/iacr/iacr2025.html#OgataTTN25 streams/journals/iacr

Keitaro Hashimoto Wakaha Ogata Yusuke Sakai 0001 Signatures with Tight Adaptive Corruptions from Search Assumptions. 115 2025 2025 IACR Cryptol. ePrint Arch. https://eprint.iacr.org/2025/115 db/journals/iacr/iacr2025.html#HashimotoOS25 streams/journals/iacr

Kota Takahashi Keitaro Hashimoto Wakaha Ogata Chosen-ciphertext secure code-based threshold public key encryptions with short ciphertext. 277-301 2024 February 92 Des. Codes Cryptogr. 2 https://doi.org/10.1007/s10623-023-01309-2 db/journals/dcc/dcc92.html#TakahashiHO24

Xichen Zhang Keitaro Hashimoto Wakaha Ogata Security Model for Authenticated Key Exchange, Reconsidered. 251-271 2024 SCN (2) https://doi.org/10.1007/978-3-031-71073-5_12 conf/scn/2024-2 db/conf/scn/scn2024-2.html#ZhangHO24 streams/conf/scn

Hirofumi Yoshioka Wakaha Ogata Keitaro Hashimoto Towards a Tightly Secure Signature in Multi-User Setting with Corruptions Based on Search Assumptions. 1286 2024 2024 IACR Cryptol. ePrint Arch. https://eprint.iacr.org/2024/1286 db/journals/iacr/iacr2024.html#YoshiokaOH24 streams/journals/iacr

Atsunori Ichikawa Wakaha Ogata Perfectly Secure Oblivious Priority Queue. 272-280 2023 March 106 IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 3 https://doi.org/10.1587/transfun.2022cip0019 db/journals/ieiceta/ieiceta106.html#IchikawaO23

Toi Tomita Wakaha Ogata Kaoru Kurosawa Boosting CPA to CCA2 for Leakage-Resilient Attribute-Based Encryption by Using New QA-NIZK. 143-159 2022 105-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 3 https://doi.org/10.1587/transfun.2021cip0003 https://www.wikidata.org/entity/Q121815269 db/journals/ieiceta/ieiceta105.html#TomitaOK22

Yoshifumi Saito Wakaha Ogata Private Decision Tree Evaluation by a Single Untrusted Server for Machine Learnig as a Service. 203-213 2022 105-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 3 https://doi.org/10.1587/transfun.2021cip0004 db/journals/ieiceta/ieiceta105.html#SaitoO22

Toi Tomita Wakaha Ogata Kaoru Kurosawa Ryo Kuwayama CCA-Secure Leakage-Resilient Identity-Based Encryption without q-Type Assumptions. 1157-1166 2020 103-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 10 https://doi.org/10.1587/transfun.2019DMP0013 http://search.ieice.org/bin/summary.php?id=e103-a_10_1157 https://www.wikidata.org/entity/Q114594499 db/journals/ieiceta/ieiceta103.html#TomitaOKK20

Wakaha Ogata Takaaki Otemori Security analysis of secure kNN and ranked keyword search over encrypted data. 419-425 2020 19 Int. J. Inf. Sec. 4 https://doi.org/10.1007/s10207-019-00461-y https://www.wikidata.org/entity/Q115147811 db/journals/ijisec/ijisec19.html#OgataO20

Koki Mukaihira Yasuyoshi Jinno Takashi Tsuchiya Tetsushi Ohki Kenta Takahashi Wakaha Ogata Masakatsu Nishigaki Communication Protocol Between Humans and Bank Server Secure Against Man-in-the-Browser Attacks. 503-509 2020 IHSI https://doi.org/10.1007/978-3-030-39512-4_79 conf/ihsi/2020 db/conf/ihsi/ihsi2020.html#MukaihiraJTOTON20

Wakaha Ogata Kaoru Kurosawa No-Dictionary Searchable Symmetric Encryption. 114-124 2019 102-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E102.A.114 http://search.ieice.org/bin/summary.php?id=e102-a_1_114 https://www.wikidata.org/entity/Q123115023 db/journals/ieicet/ieicet102a.html#OgataK19

Keitaro Hashimoto Wakaha Ogata Unrestricted and compact certificateless aggregate signature scheme. 97-114 2019 487 Inf. Sci. https://doi.org/10.1016/j.ins.2019.03.005 https://www.wikidata.org/entity/Q128290359 db/journals/isci/isci487.html#HashimotoO19

Dan Yamamoto Wakaha Ogata Multidivisible Online/Offline Cryptography and Its Application to Signcryptions. 1042649:1-1042649:21 2019 2019 Secur. Commun. Networks https://doi.org/10.1155/2019/1042649 https://www.wikidata.org/entity/Q127126741 db/journals/scn/scn2019.html#YamamotoO19

Atsunori Ichikawa Wakaha Ogata Koki Hamada Ryo Kikuchi Efficient Secure Multi-Party Protocols for Decision Tree Classification. 362-380 2019 ACISP https://doi.org/10.1007/978-3-030-21548-4_20 conf/acisp/2019 db/conf/acisp/acisp2019.html#IchikawaOHK19 Toi Tomita Wakaha Ogata Kaoru Kurosawa CCA-Secure Leakage-Resilient Identity-Based Key-Encapsulation from Simple (Not \mathtt q -type) Assumptions. 3-22 2019 IWSEC https://doi.org/10.1007/978-3-030-26834-3_1 conf/iwsec/2019 db/conf/iwsec/iwsec2019.html#TomitaOK19

Toi Tomita Wakaha Ogata Kaoru Kurosawa Ryo Kuwayama CCA-Secure Leakage-Resilient Identity-Based Key-Encapsulation from Simple (not $\mathtt{q}$-type) Assumptions. 982 2019 2019 IACR Cryptol. ePrint Arch. https://eprint.iacr.org/2019/982 db/journals/iacr/iacr2019.html#TomitaOKK19

Keitaro Hashimoto Wakaha Ogata Toi Tomita Tight reduction for generic construction of certificateless signature and its instantiation from DDH assumption. 1367 2019 2019 IACR Cryptol. ePrint Arch. https://eprint.iacr.org/2019/1367 db/journals/iacr/iacr2019.html#HashimotoOT19

Dan Yamamoto Wakaha Ogata Multi-Divisible On-Line/Off-Line Encryptions. 91-102 2017 100-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E100.A.91 http://search.ieice.org/bin/summary.php?id=e100-a_1_91 db/journals/ieicet/ieicet100a.html#YamamotoO17

Wakaha Ogata Toshinori Araki Computationally Secure Verifiable Secret Sharing Scheme for Distributing Many Secrets. 103-114 2017 100-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E100.A.103 http://search.ieice.org/bin/summary.php?id=e100-a_1_103 db/journals/ieicet/ieicet100a.html#OgataA17

Ryo Kikuchi Dai Ikarashi Koji Chida Koki Hamada Wakaha Ogata Computational SS and conversion protocols in both active and passive settings. 287-293 2017 11 IET Inf. Secur. 5 https://doi.org/10.1049/iet-ifs.2016.0276 db/journals/iet-ifs/iet-ifs11.html#KikuchiICHO17

Wakaha Ogata Kaoru Kurosawa Efficient No-dictionary Verifiable Searchable Symmetric Encryption. 498-516 2017 Financial Cryptography https://doi.org/10.1007/978-3-319-70972-7_28 conf/fc/2017 db/conf/fc/fc2017.html#OgataK17

Mikio Fujiwara Atsushi Waseda Ryo Nojima Shiho Moriai Wakaha Ogata Masahide Sasaki Unbreakable distributed storage with quantum key distribution network and password-authenticated secret sharing. 2016 abs/1607.00468 CoRR http://arxiv.org/abs/1607.00468 db/journals/corr/corr1607.html#FujiwaraWNMOS16

Wakaha Ogata Kaoru Kurosawa Efficient No-dictionary Verifiable SSE. 981 2016 2016 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2016/981 db/journals/iacr/iacr2016.html#OgataK16

Nguyen Quoc Viet Wakaha Ogata Certificateless Aggregate Signature Schemes with Improved Security. 92-99 2015 98-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E98.A.92 http://search.ieice.org/bin/summary.php?id=e98-a_1_92 https://www.wikidata.org/entity/Q114961875 db/journals/ieicet/ieicet98a.html#VietO15

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. 213-222 2015 98-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E98.A.213 http://search.ieice.org/bin/summary.php?id=e98-a_1_213 db/journals/ieicet/ieicet98a.html#KikuchiCIOHT15

Shunsuke Taketani Wakaha Ogata Improvement of UC Secure Searchable Symmetric Encryption Scheme. 135-152 2015 IWSEC https://doi.org/10.1007/978-3-319-22425-1_9 conf/iwsec/2015 db/conf/iwsec/iwsec2015.html#TaketaniO15

Wakaha Ogata Hiroshi Eguchi Cheating detectable threshold scheme against most powerful cheaters for long secrets. 527-539 2014 71 Des. Codes Cryptogr. 3 https://doi.org/10.1007/s10623-012-9756-5 db/journals/dcc/dcc71.html#OgataE14

Wakaha Ogata Toshinori Araki Cheating Detectable Secret Sharing Schemes for Random Bit Strings. 2230-2234 2013 96-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 11 https://doi.org/10.1587/transfun.E96.A.2230 http://search.ieice.org/bin/summary.php?id=e96-a_11_2230 db/journals/ieicet/ieicet96a.html#OgataA13

Wakaha Ogata Keita Koiwa Akira Kanaoka Shin'ichiro Matsuo Toward Practical Searchable Symmetric Encryption. 151-167 2013 IWSEC https://doi.org/10.1007/978-3-642-41383-4_10 conf/iwsec/2013 db/conf/iwsec/iwsec2013.html#OgataKKM13

Le Trieu Phong Kaoru Kurosawa Wakaha Ogata Undeniable and Unpretendable Signatures. 138-150 2012 95-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E95.A.138 http://search.ieice.org/bin/summary.php?id=e95-a_1_138 db/journals/ieicet/ieicet95a.html#PhongKO12

Tatsumi Oba Wakaha Ogata Provably Secure On-Line Secret Sharing Scheme. 139-149 2011 94-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E94.A.139 http://search.ieice.org/bin/summary.php?id=e94-a_1_139 db/journals/ieicet/ieicet94a.html#ObaO11

Toshinori Araki Wakaha Ogata A Simple and Efficient Secret Sharing Scheme Secure against Cheating. 1338-1345 2011 94-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 6 https://doi.org/10.1587/transfun.E94.A.1338 http://search.ieice.org/bin/summary.php?id=e94-a_6_1338 db/journals/ieicet/ieicet94a.html#ArakiO11

Le Trieu Phong Kaoru Kurosawa Wakaha Ogata New RSA-Based (Selectively) Convertible Undeniable Signature Schemes. 63-75 2010 93-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E93.A.63 http://search.ieice.org/bin/summary.php?id=e93-a_1_63 db/journals/ieicet/ieicet93a.html#PhongKO10

Toshinori Araki Wakaha Ogata Efficient Almost Secure 1-Round Message Transmission Schemes for 3t+1 Channels. 126-135 2010 93-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E93.A.126 http://search.ieice.org/bin/summary.php?id=e93-a_1_126 db/journals/ieicet/ieicet93a.html#ArakiO10

Hiroaki Kikuchi Kei Nagai Wakaha Ogata Masakatsu Nishigaki Privacy-preserving similarity evaluation and application to remote biometrics authentication. 529-536 2010 14 Soft Comput. 5 https://doi.org/10.1007/s00500-009-0449-6 db/journals/soco/soco14.html#KikuchiNON10

Ryo Kikuchi Le Trieu Phong Wakaha Ogata A Framework for Constructing Convertible Undeniable Signatures. 70-86 2010 ProvSec https://doi.org/10.1007/978-3-642-16280-0_5 conf/provsec/2010 db/conf/provsec/provsec2010.html#KikuchiPO10 Le Trieu Phong Kaoru Kurosawa Wakaha Ogata Provably Secure Convertible Undeniable Signatures with Unambiguity. 291-308 2010 SCN https://doi.org/10.1007/978-3-642-15317-4_19 conf/scn/2010 db/conf/scn/scn2010.html#PhongKO10

Kouichi Itoh Tetsuya Izu Wakaha Ogata Takeshi Shimoyama Masahiko Takenaka Forgery Attacks on Time-Stamp, Signed PDF and X.509 Certificate. 67-75 2009 92-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1587/transfun.E92.A.67 http://search.ieice.org/bin/summary.php?id=e92-a_1_67&category=A&year=2009&lang=E&abst= db/journals/ieicet/ieicet92a.html#ItohIOST09

Kouichi Itoh Dai Yamamoto Jun Yajima Wakaha Ogata Collision-Based Power Attack for RSA with Small Public Exponent. 897-908 2009 92-D IEICE Trans. Inf. Syst. 5 https://doi.org/10.1587/transinf.E92.D.897 http://search.ieice.org/bin/summary.php?id=e92-d_5_897&category=D&year=2009&lang=E&abst= db/journals/ieicet/ieicet92d.html#ItohYYO09

Le Trieu Phong Wakaha Ogata New Identity-Based Blind Signature and Blind Decryption Scheme in the Standard Model. 1822-1835 2009 92-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 8 https://doi.org/10.1587/transfun.E92.A.1822 http://search.ieice.org/bin/summary.php?id=e92-a_8_1822 db/journals/ieicet/ieicet92a.html#PhongO09

Le Trieu Phong Kaoru Kurosawa Wakaha Ogata New RSA-Based (Selectively) Convertible Undeniable Signature Schemes. 116-134 2009 AFRICACRYPT https://doi.org/10.1007/978-3-642-02384-2_8 conf/africacrypt/2009 db/conf/africacrypt/africacrypt2009.html#PhongKO09 Taiki Sakashita Yoichi Shibata Takumi Yamamoto Kenta Takahashi Wakaha Ogata Hiroaki Kikuchi Masakatsu Nishigaki A Proposal of Efficient Remote Biometric Authentication Protocol. 212-227 2009 IWSEC https://doi.org/10.1007/978-3-642-04846-3_14 conf/iwsec/2009 db/conf/iwsec/iwsec2009.html#SakashitaSYTOKN09

Le Trieu Phong Kaoru Kurosawa Wakaha Ogata Provably Secure Convertible Undeniable Signatures with Unambiguity. 394 2009 2009 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2009/394 db/journals/iacr/iacr2009.html#PhongKO09

Isamu Teranishi Takuro Oyama Wakaha Ogata General Conversion for Obtaining Strongly Existentially Unforgeable Signatures. 94-106 2008 91-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1093/ietfec/e91-a.1.94 db/journals/ieicet/ieicet91a.html#TeranishiOO08

Isamu Teranishi Wakaha Ogata Relationship between Standard Model Plaintext Awareness and Message Hiding. 244-261 2008 91-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1093/ietfec/e91-a.1.244 db/journals/ieicet/ieicet91a.html#TeranishiO08

Isamu Teranishi Wakaha Ogata Relationship between Two Approaches for Defining the Standard Model PA-ness. 113-127 2008 ACISP https://doi.org/10.1007/978-3-540-70500-0_9 conf/acisp/2008 db/conf/acisp/acisp2008.html#TeranishiO08 Le Trieu Phong Hiroto Matsuoka Wakaha Ogata Stateful identity-based encryption scheme: faster encryption and decryption. 381-388 2008 AsiaCCS https://doi.org/10.1145/1368310.1368367 https://www.wikidata.org/entity/Q130851614 conf/ccs/2008asia db/conf/ccs/asiaccs2008.html#PhongMO08 Hiroaki Kikuchi Kei Nagai Wakaha Ogata Masakatsu Nishigaki Privacy-Preserving Similarity Evaluation and Application to Remote Biometrics Authentication. 3-14 2008 MDAI https://doi.org/10.1007/978-3-540-88269-5_2 conf/mdai/2008 db/conf/mdai/mdai2008.html#KikuchiNON08 Isamu Teranishi Wakaha Ogata Cramer-Shoup Satisfies a Stronger Plaintext Awareness under a Weaker Assumption. 109-125 2008 SCN https://doi.org/10.1007/978-3-540-85855-3_8 conf/scn/2008 db/conf/scn/scn2008.html#TeranishiO08

Le Trieu Phong Wakaha Ogata Blind HIBE and its Applications to Identity-Based Blind Signature and Blind Decryption. 327 2008 2008 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2008/327 db/journals/iacr/iacr2008.html#PhongO08

Dan Yamamoto Wakaha Ogata A General Model of Structured Multisignatures with Message Flexibility. 83-90 2007 90-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1093/ietfec/e90-a.1.83 db/journals/ieicet/ieicet90a.html#YamamotoO07

Le Trieu Phong Wakaha Ogata On Some Variations of Kurosawa-Desmedt Public-Key Encryption Scheme. 226-230 2007 90-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 https://doi.org/10.1093/ietfec/e90-a.1.226 https://www.wikidata.org/entity/Q120897701 db/journals/ieicet/ieicet90a.html#PhongO07

Wakaha Ogata Naoya Matsumoto Comments on the Security Proofs of Some Signature Schemes Based on Factorization. 526-530 2007 90-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 2 https://doi.org/10.1093/ietfec/e90-a.2.526 https://www.wikidata.org/entity/Q114999616 db/journals/ieicet/ieicet90a.html#OgataM07

Kei Nagai Hiroaki Kikuchi Wakaha Ogata Masakatsu Nishigaki ZeroBio - Evaluation and Development of Asymmetric Fingerprint Authentication System Using Oblivious Neural Network Evaluation Protocol. 1155-1159 2007 ARES https://doi.org/10.1109/ARES.2007.162 https://doi.ieeecomputersociety.org/10.1109/ARES.2007.162 conf/IEEEares/2007 db/conf/IEEEares/ares2007.html#NagaiKON07

Wakaha Ogata Kaoru Kurosawa Douglas R. Stinson Optimum Secret Sharing Scheme Secure against Cheating. 79-95 2006 20 SIAM J. Discret. Math. 1 https://doi.org/10.1137/S0895480100378689 db/journals/siamdm/siamdm20.html#OgataKS06

Wakaha Ogata Kaoru Kurosawa Swee-Huay Heng The security of the FDH variant of Chaum's undeniable signature scheme. 2006-2017 2006 52 IEEE Trans. Inf. Theory 5 https://doi.org/10.1109/TIT.2006.872853 db/journals/tit/tit52.html#OgataKH06

Isamu Teranishi Wakaha Ogata Relationship Between Standard Model Plaintext Awareness and Message Hiding. 226-240 2006 conf/asiacrypt/2006 ASIACRYPT https://doi.org/10.1007/11935230_15 db/conf/asiacrypt/asiacrypt2006.html#TeranishiO06 Isamu Teranishi Takuro Oyama Wakaha Ogata General Conversion for Obtaining Strongly Existentially Unforgeable Signatures. 191-205 2006 conf/indocrypt/2006 INDOCRYPT https://doi.org/10.1007/11941378_14 db/conf/indocrypt/indocrypt2006.html#TeranishiOO06

Le Trieu Phong Wakaha Ogata On a Variation of Kurosawa-Desmedt Encryption Scheme. 31 2006 2006 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2006/031 db/journals/iacr/iacr2006.html#PhongO06

Le Trieu Phong Wakaha Ogata Some Practical Public-Key Encryption Schemes in both Standard Model and Random Oracle Model. 173 2006 2006 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2006/173 db/journals/iacr/iacr2006.html#PhongO06a

Natsuki Ishida Shin'ichiro Matsuo Wakaha Ogata Efficient Divisible Voting Scheme. 230-238 http://search.ieice.org/bin/summary.php?id=e88-a_1_230&category=D&year=2005&lang=E&abst= 2005 88-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 db/journals/ieicet/ieicet88a.html#IshidaMO05

Wakaha Ogata Kaoru Kurosawa Swee-Huay Heng The Security of the FDH Variant of Chaum's Undeniable Signature Scheme. 328-345 https://doi.org/10.1007/978-3-540-30580-4_23 2005 conf/pkc/2005 Public Key Cryptography db/conf/pkc/pkc2005.html#OgataKH05

Wakaha Ogata Kaoru Kurosawa Douglas R. Stinson Hajime Saido New combinatorial designs and their applications to authentication codes and secret sharing schemes. 383-405 2004 279 Discret. Math. 1-3 https://doi.org/10.1016/S0012-365X(03)00283-8 db/journals/dm/dm279.html#OgataKSS04

Wakaha Ogata Ryota Sasahara k out of n Oblivious Transfer without Random Oracles. 147-151 http://search.ieice.org/bin/summary.php?id=e87-a_1_147&category=D&year=2004&lang=E&abst= 2004 87-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 db/journals/ieicet/ieicet87a.html#OgataS04

Wakaha Ogata Kaoru Kurosawa Oblivious keyword search. 356-371 2004 20 J. Complex. 2-3 https://doi.org/10.1016/j.jco.2003.08.023 db/journals/jc/jc20.html#OgataK04

Wakaha Ogata Kaoru Kurosawa Swee-Huay Heng The Security of the FDH Variant of Chaum's Undeniable Signature Scheme. 290 2004 2004 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2004/290 db/journals/iacr/iacr2004.html#OgataKH04

Shin'ichiro Matsuo Wakaha Ogata Electronic Ticket Scheme for ITS. 142-150 2003 86-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 http://search.ieice.org/bin/summary.php?id=e86-a_1_142 db/journals/ieiceta/ieiceta86.html#MatsuoO03

Shin'ichiro Matsuo Wakaha Ogata Matching Oblivious Transfer: How to Exchange Valuable Data. 189-193 2003 86-A IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 1 http://search.ieice.org/bin/summary.php?id=e86-a_1_189 db/journals/ieiceta/ieiceta86.html#MatsuoO03a

Natsuki Ishida Shin'ichiro Matsuo Wakaha Ogata Divisible Voting Scheme. 137-150 https://doi.org/10.1007/10958513_11 2003 conf/isw/2003 ISC db/conf/isw/isc2003.html#IshidaMO03 Shin'ichiro Matsuo Wakaha Ogata Brief announcement: a method for exchanging valuable data: how to realize matching oblivious transfer. 201 2003 conf/podc/2003 PODC https://doi.org/10.1145/872035.872064 db/conf/podc/podc2003.html#MatsuoO03

Natsuki Ishida Shin'ichiro Matsuo Wakaha Ogata Divisible Voting Scheme. 74 2003 2003 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2003/074 db/journals/iacr/iacr2003.html#IshidaMO03

Wataru Kishimoto Koji Okada Kaoru Kurosawa Wakaha Ogata On the bound for anonymous secret sharing schemes. 193-202 2002 121 Discret. Appl. Math. 1-3 db/journals/dam/dam121.html#KishimotoOKO02 https://doi.org/10.1016/S0166-218X(01)00236-0

Wakaha Ogata Kaoru Kurosawa Bounds for Robust Metering Schemes and Their Relationship with A-code. 64-80 2002 conf/asiacrypt/2002 ASIACRYPT https://doi.org/10.1007/3-540-36178-2_4 db/conf/asiacrypt/asiacrypt2002.html#OgataK02 Kaoru Kurosawa Wakaha Ogata Bit-Slice Auction Circuit. 24-38 2002 conf/esorics/2002 ESORICS https://doi.org/10.1007/3-540-45853-0_2 db/conf/esorics/esorics2002.html#KurosawaO02

Wakaha Ogata Kaoru Kurosawa Oblivious Keyword Search. 182 2002 2002 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2002/182 db/journals/iacr/iacr2002.html#OgataK02

Kaoru Kurosawa Wakaha Ogata Bit-Slice Auction Circuit. 189 2002 2002 IACR Cryptol. ePrint Arch. http://eprint.iacr.org/2002/189 db/journals/iacr/iacr2002.html#KurosawaO02

Kaoru Kurosawa Wakaha Ogata Toshihiko Matsuo Shuichi Makishima IND-CCA Public Key Schemes Equivalent to Factoring n=pq. 36-47 https://doi.org/10.1007/3-540-44586-2_3 2001 conf/pkc/2001 Public Key Cryptography db/conf/pkc/pkc2001.html#KurosawaOMM01 Wakaha Ogata Kaoru Kurosawa Provably Secure Metering Scheme. 388-398 2000 conf/asiacrypt/2000 ASIACRYPT https://doi.org/10.1007/3-540-44448-3_29 db/conf/asiacrypt/asiacrypt2000.html#OgataK00

Kaoru Kurosawa Wakaha Ogata Efficient Rabin-type Digital Signature Scheme. 53-64 1999 16 Des. Codes Cryptogr. 1 db/journals/dcc/dcc16.html#KurosawaO99 https://doi.org/10.1023/A:1008374325369

Carlo Blundo Alfredo De Santis Kaoru Kurosawa Wakaha Ogata On a Fallacious Bound for Authentication Codes. 155-159 https://doi.org/10.1007/s001459900049 https://www.wikidata.org/entity/Q127846185 1999 12 J. Cryptol. 3 db/journals/joc/joc12.html#BlundoSKO99

Wakaha Ogata Kaoru Kurosawa Some Basic Properties of General Nonperfect Secret Sharing Schemes. 690-704 1998 4 J. Univers. Comput. Sci. 8 db/journals/jucs/jucs4.html#OgataK98 https://doi.org/10.3217/jucs-004-08-0690

Wakaha Ogata Kaoru Kurosawa Kazue Sako Kazunori Takatani Fault tolerant anonymous channel. 440-444 1997 conf/icics/1997 ICICS db/conf/icics/icics1997.html#OgataKST97 https://doi.org/10.1007/BFb0028500

Wakaha Ogata Keiichi Sakano Kaoru Kurosawa Multisymbol Majority Vote and Hard Core. 285-292 1996 58 Inf. Process. Lett. 6 db/journals/ipl/ipl58.html#OgataSK96 https://doi.org/10.1016/0020-0190(96)00058-0

Wakaha Ogata Kaoru Kurosawa Optimum Secret Sharing Scheme Secure against Cheating. 200-211 https://doi.org/10.1007/3-540-68339-9_18 1996 conf/eurocrypt/96 EUROCRYPT db/conf/eurocrypt/eurocrypt96.html#OgataK96 Kaoru Kurosawa Satoshi Obana Wakaha Ogata t-Cheater Identifiable (k, n) Threshold Secret Sharing Schemes. 410-423 https://doi.org/10.1007/3-540-44750-4_33 1995 conf/crypto/1995 CRYPTO db/conf/crypto/crypto95.html#KurosawaOO95 Kaoru Kurosawa Koji Okada Keiichi Sakano Wakaha Ogata Shigeo Tsujii Nonperfect Secret Sharing Schemes and Matroids. 126-141 https://doi.org/10.1007/3-540-48285-7_11 1993 conf/eurocrypt/93 EUROCRYPT db/conf/eurocrypt/eurocrypt93.html#KurosawaOSOT93 Wakaha Ogata Kaoru Kurosawa Shigeo Tsujii Nonperfect Secret Sharing Schemes. 56-66 1992 conf/asiacrypt/1992 AUSCRYPT db/conf/asiacrypt/asiacrypt92.html#OgataKT92 https://doi.org/10.1007/3-540-57220-1_52 Wakaha Ogata Kaoru Kurosawa On Claw Free Families. 111-123 1991 conf/asiacrypt/1991 ASIACRYPT db/conf/asiacrypt/asiacrypt91.html#OgataK91 https://doi.org/10.1007/3-540-57332-1_9 Kaoru Kurosawa Yutaka Katayama Wakaha Ogata Shigeo Tsujii General Public Key Residue Cryptosystems and Mental Poker Protocols. 374-388 https://doi.org/10.1007/3-540-46877-3_34 1990 conf/eurocrypt/90 EUROCRYPT db/conf/eurocrypt/eurocrypt90.html#KurosawaKOT90 Toshinori Araki Carlo Blundo Koji Chida Vaibhav Dixit Hiroshi Eguchi Sena Enomoto Mikio Fujiwara Koki Hamada Ryunosuke Harada Kakeru Hasegawa Keitaro Hashimoto Wataru Hatakeyama Swee-Huay Heng Atsunori Ichikawa Dai Ikarashi Natsuki Ishida Kouichi Itoh Tetsuya Izu Yasuyoshi Jinno Akira Kanaoka Shoma Kanzaki Yutaka Katayama Hiroaki Kikuchi Ryo Kikuchi Wataru Kishimoto Keita Koiwa Kaoru Kurosawa Ryo Kuwayama Fukang Liu Shuichi Makishima Koki Matsui Naoya Matsumoto Shin'ichiro Matsuo Toshihiko Matsuo Hiroto Matsuoka Willi Meier Shiho Moriai Koki Mukaihira Kei Nagai Masakatsu Nishigaki Ryo Nojima Tatsumi Oba Satoshi Obana Tetsushi Ohki Koji Okada Takaaki Otemori Takuro Oyama Le Trieu Phong Hajime Saido Yoshifumi Saito Yusuke Sakai 0001 Keiichi Sakano Taiki Sakashita Kazue Sako Alfredo De Santis Santanu Sarkar 0001 Ryota Sasahara Masahide Sasaki Guilherme T. S. Sato Yoichi Shibata Takeshi Shimoyama Douglas Robert StinsonDouglas R. Stinson Katsumi Takahashi Kenta Takahashi Kota Takahashi Kazunori Takatani Masahiko Takenaka Shunsuke Taketani Isamu Teranishi Toi Tomita Takashi Tsuchiya Shigeo Tsujii Nguyen Quoc Viet Atsushi Waseda Jun Yajima Dai Yamamoto Daisuke Yamamoto Dan Yamamoto Takumi Yamamoto Hirofumi Yoshioka Xichen Zhang