Ryo Nojima

48 papers A* 1A 1B 1C 6Misc 6Journal 25Unranked 8
YearRankTypeTitle / Venue / Authors
2026 — conf
Practical Private Approximate Similarity Computation.
ICISSP (2)
Ryo Nojima, Lihua Wang
2025 — conf
Detecting Illicit Drug Trade on SNS through Image Classification and Real-time Monitoring.
CANDAR
Tetta Hayashi, Ryo Nojima
2025 — conf
Redactable Signature for Data Anonymization.
CANDARW
Shuhei Deno, Ryo Nojima, Lihua Wang
2024 C conf
Security Evaluation of Decision Tree Meets Data Anonymization.
ICISSP
Ryousuke Wakabayashi, Lihua Wang, Ryo Nojima, Atsushi Waseda
2024 C conf
Simple Privacy-Preserving Federated Learning with Different Encryption Keys.
ISITA
Haruto Yokomitsu, Ryo Nojima, Lihua Wang
2023 J jnl
Construction of a Support Tool for Japanese User Reading of Privacy Policies and Assessment of its User Impact.
IEICE Trans. Inf. Syst.
Sachiko Kanamori, Hirotsune Sato, Naoya Tabata, Ryo Nojima
2023 — conf
Continuous Group Key Agreement with Flexible Authorization and Its Applications.
IWSPA@CODASPY
Kaisei Kajita, Keita Emura, Kazuto Ogawa, Ryo Nojima, Go Ohtake
2023 J jnl
Designing a Location Trace Anonymization Contest.
Proc. Priv. Enhancing Technol.
Takao Murakami, Hiromi Arai, Koki Hamada, Takuma Hatano, Makoto Iguchi, Hiroaki Kikuchi, Atsushi Kuromasa, Hiroshi Nakagawa, Yuichi Nakamura, Kenshiro Nishiyama, Ryo Nojima, Hidenobu Oguri, Chiemi Watanabe, Akira Yamada, Takayasu Yamaguchi, Yuji Yamaoka
2023 — conf
Differential Private (Random) Decision Tree Without Adding Noise.
ICONIP (9)
Ryo Nojima, Lihua Wang
2022 C conf
Construction of a Support Tool for User Reading of Privacy Policies and Assessment of its User Impact.
ICISSP
Sachiko Kanamori, Hirotsune Sato, Naoya Tabata, Ryo Nojima
2022 J jnl
Continuous Group Key Agreement with Flexible Authorization and Its Applications.
IACR Cryptol. ePrint Arch.
Kaisei Kajita, Keita Emura, Kazuto Ogawa, Ryo Nojima, Go Ohtake
2022 Misc conf
Membership Privacy for Asynchronous Group Messaging.
WISA
Keita Emura, Kaisei Kajita, Ryo Nojima, Kazuto Ogawa, Go Ohtake
2022 J jnl
Membership Privacy for Asynchronous Group Messaging.
IACR Cryptol. ePrint Arch.
Keita Emura, Kaisei Kajita, Ryo Nojima, Kazuto Ogawa, Go Ohtake
2022 J jnl
Privacy-Preserving Federated Learning for Detecting Fraudulent Financial Transactions in Japanese Banks.
J. Inf. Process.
Sachiko Kanamori, Taeko Abe, Takuma Ito, Keita Emura, Lihua Wang, Shuntaro Yamamoto, Le Trieu Phong, Kaien Abe, Sangwook Kim, Ryo Nojima, Seiichi Ozawa, Shiho Moriai
2022 J jnl
Providing Membership Privacy to the Asynchronous Ratcheting Trees Protocol without losing Scalability.
J. Wirel. Mob. Networks Ubiquitous Comput. Dependable Appl.
Keita Emura, Kaisei Kajita, Ryo Nojima, Kazuto Ogawa, Go Ohtake
2022 — conf
State-free End-to-End Encrypted Storage and Chat Systems based on Searchable Encryption.
ICEIS (2)
Keita Emura, Ryoma Ito, Sachiko Kanamori, Ryo Nojima, Yohei Watanabe
2021 Misc ed.
Advances in Information and Computer Security - 16th International Workshop on Security, IWSEC 2021, Virtual Event, September 8-10, 2021, Proceedings
IWSEC
Toru Nakanishi, Ryo Nojima
2021 J jnl
Designing a Location Trace Anonymization Contest.
CoRR
Takao Murakami, Hiromi Arai, Koki Hamada, Takuma Hatano, Makoto Iguchi, Hiroaki Kikuchi, Atsushi Kuromasa, Hiroshi Nakagawa, Yuichi Nakamura, Kenshiro Nishiyama, Ryo Nojima, Hidenobu Oguri, Chiemi Watanabe, Akira Yamada, Takayasu Yamaguchi, Yuji Yamaoka
2021 J jnl
State-free End-to-End Encrypted Storage and Chat Systems based on Searchable Encryption.
IACR Cryptol. ePrint Arch.
Keita Emura, Ryoma Ito, Sachiko Kanamori, Ryo Nojima, Yohei Watanabe
2021 J jnl
The Present and Future of Discrete Logarithm Problems on Noisy Quantum Computers.
CoRR
Yoshinori Aono, Sitong Liu, Tomoki Tanaka, Shumpei Uno, Rodney Van Meter, Naoyuki Shinohara, Ryo Nojima
2020 Misc conf
On Limitation of Plausible Deniability.
IWSEC
Atsushi Waseda, Ryo Nojima
2018 J jnl
How to Handle Excessively Anonymized Datasets.
J. Inf. Process.
Ryo Nojima, Hidenobu Oguri, Hiroaki Kikuchi, Hiroshi Nakagawa, Koki Hamada, Takao Murakami, Yuji Yamaoka, Chiemi Watanabe
2016 C conf
Analyzing Randomized Response Mechanisms Under Differential Privacy.
ISC
Atsushi Waseda, Ryo Nojima
2016 C conf
How does the willingness to provide private information change?
ISITA
Sachiko Kanamori, Ryo Nojima, Hirotsune Sato, Naoya Tabata, Kanako Kawaguchi, Hirohiko Suwa, Atsushi Iwai
2016 J jnl
On the security of CBC Mode in SSL3.0 and TLS1.0.
J. Internet Serv. Inf. Secur.
Takashi Kurokawa, Ryo Nojima, Shiho Moriai
2016 J jnl
Unbreakable distributed storage with quantum key distribution network and password-authenticated secret sharing.
CoRR
Mikio Fujiwara, Atsushi Waseda, Ryo Nojima, Shiho Moriai, Wakaha Ogata, Masahide Sasaki
2015 — conf
A Secure Automobile Information Sharing System.
IoTPTS@AsiaCCS
Lihua Wang, Ryo Nojima, Shiho Moriai
2015 — conf
Can We Securely Use CBC Mode in TLS1.0?
ICT-EurAsia/CONFENIS
Takashi Kurokawa, Ryo Nojima, Shiho Moriai
2015 J jnl
Generic Fully Simulatable Adaptive Oblivious Transfer.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2015 A* conf
POSTER: PRINCESS: A Secure Cloud File Storage System for Managing Data with Hierarchical Levels of Sensitivity.
CCS
Lihua Wang, Takuya Hayashi, Sachiko Kanamori, Atsushi Waseda, Ryo Nojima, Shiho Moriai
2014 J jnl
Relation between Verifiable Random Functions and Convertible Undeniable Signatures, and New Constructions.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2013 J jnl
New leakage-resilient CCA-secure public key encryption.
J. Math. Cryptol.
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2013 J jnl
UC-Secure Multi-Session OT Using Tamper-Proof Hardware.
IACR Cryptol. ePrint Arch.
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2012 J jnl
New Leakage Resilient CCA-Secure Public Key Encryption.
IACR Cryptol. ePrint Arch.
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2012 Misc conf
Relation between Verifiable Random Functions and Convertible Undeniable Signatures, and New Constructions.
ACISP
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2012 J jnl
Relation between Verifiable Random Functions and Convertible Undeniable Signatures, and New Constructions.
IACR Cryptol. ePrint Arch.
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2011 B conf
Generic Fully Simulatable Adaptive Oblivious Transfer.
ACNS
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2011 J jnl
Generic Fully Simulatable Adaptive Oblivious Transfer.
IACR Cryptol. ePrint Arch.
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2010 Misc conf
Efficiency-Improved Fully Simulatable Adaptive OT under the DDH Assumption.
SCN
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2010 J jnl
Efficiency-Improved Fully Simulatable Adaptive OT under the DDH Assumption.
IACR Cryptol. ePrint Arch.
Kaoru Kurosawa, Ryo Nojima, Le Trieu Phong
2009 C conf
A Storage Efficient Redactable Signature in the Standard Model.
ISC
Ryo Nojima, Jin Tamura, Youki Kadobayashi, Hiroaki Kikuchi
2009 J jnl
Cryptographically Secure Bloom-Filters.
Trans. Data Priv.
Ryo Nojima, Youki Kadobayashi
2009 J jnl
Simple Adaptive Oblivious Transfer Without Random Oracle.
IACR Cryptol. ePrint Arch.
Kaoru Kurosawa, Ryo Nojima
2009 A conf
Simple Adaptive Oblivious Transfer without Random Oracle.
ASIACRYPT
Kaoru Kurosawa, Ryo Nojima
2008 J jnl
Semantic security for the McEliece cryptosystem without random oracles.
Des. Codes Cryptogr.
Ryo Nojima, Hideki Imai, Kazukuni Kobara, Kirill Morozov
2006 Misc conf
Efficient Shared-Key Authentication Scheme from Any Weak Pseudorandom Function.
INDOCRYPT
Ryo Nojima, Kazukuni Kobara, Hideki Imai
2005 J jnl
Secure, Efficient and Practical Key Management Scheme in the Complete-Subtree Method.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Ryo Nojima, Yuichi Kaji
2005 J jnl
Using Trapdoor Permutations in a Complete Subtree Method for Broadcast Encryption.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Ryo Nojima, Yuichi Kaji