Transformation-free proxy cryptosystems and their applications to electronic commerce. - Lihua Wang 001; Zhenfu Cao; Eiji Okamoto; Ying Miao 001; Takeshi Okamoto (InfoSecu, 2004)

Insider Impersonation-MIM Attack to Tripartite Key Agreement Scheme and an Efficient Protocol for Multiple Keys. - Lihua Wang 001; Takeshi Okamoto; Tsuyoshi Takagi; Eiji Okamoto (CIS (2), 2005)

ID-Based Series-Parallel Multisignature Schemes for Multi-Messages from Bilinear Maps. - Lihua Wang 001; Eiji Okamoto; Ying Miao 001; Takeshi Okamoto; Hiroshi Doi (WCC, 2005)

Combinatorial Constructions for Optimal Splitting Authentication Codes. - Gennian Ge; Ying Miao 001; Lihua Wang 001 (SIAM J. Discret. Math., 2005)

A Subject-Delegated Decryption Scheme with "Tightly" Limited Authority. - Lihua Wang 001; Takeshi Okamoto; Masahiro Mambo; Eiji Okamoto (IACR Cryptol. ePrint Arch., 2006)

Authorization-Limited Transformation-Free Proxy Cryptosystems and Their Security Analyses. - Lihua Wang 001; Zhenfu Cao; Takeshi Okamoto; Ying Miao 001; Eiji Okamoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

Privacy Enhancing Credentials. - Junji Nakazato; Lihua Wang 001; Akihiro Yamamura (ASIAN, 2007)

A Certificate-Based Proxy Cryptosystem with Revocable Proxy Decryption Power. - Lihua Wang 001; Jun Shao 001; Zhenfu Cao; Masahiro Mambo; Akihiro Yamamura (INDOCRYPT, 2007)

An ID-SP-M4M Scheme and Its Security Analysis. - Lihua Wang 001; Eiji Okamoto; Ying Miao 001; Takeshi Okamoto; Hiroshi Doi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

Security Proof for the Improved Ryu-Yoon-Yoo Identity-Based Key Agreement Protocol. - Shengbao Wang; Zhenfu Cao; Kim-Kwang Raymond Choo; Lihua Wang 001 (IACR Cryptol. ePrint Arch., 2008)

Cryptanalysis and improvement of an elliptic curve Diffie-Hellman key agreement protocol. - Shengbao Wang; Zhenfu Cao; Maurizio Adriano Strangio; Lihua Wang 001 (IEEE Commun. Lett., 2008)

Discrete-Log-Based Additively Homomorphic Encryption and Secure WSN Data Aggregation. - Licheng Wang; Lihua Wang 001; Yun Pan; Zonghua Zhang; Yixian Yang (ICICS, 2009)

New Cryptosystems From CSP-Based Self-Distributive Systems. - Licheng Wang; Lihua Wang 001; Zhenfu Cao; Eiji Okamoto; Jun Shao 001 (IACR Cryptol. ePrint Arch., 2009)

An improved identity-based key agreement protocol and its security proof. - Shengbao Wang; Zhenfu Cao; Kim-Kwang Raymond Choo; Lihua Wang 001 (Inf. Sci., 2009)

New Constructions of Public-Key Encryption Schemes from Conjugacy Search Problems. - Lihua Wang 001; Licheng Wang; Zhenfu Cao; Eiji Okamoto; Jun Shao 001 (Inscrypt, 2010)

New Identity-Based Proxy Re-encryption Schemes to Prevent Collusion Attacks. - Lihua Wang 001; Licheng Wang; Masahiro Mambo; Eiji Okamoto (Pairing, 2010)

Conjugate adjoining problem in braid groups and new design of braid-based signatures. - Licheng Wang; Lihua Wang 001; Zhenfu Cao; Yixian Yang; Xinxin Niu (Sci. China Inf. Sci., 2010)

Solving a 676-bit Discrete Logarithm Problem in GF(36n). - Takuya Hayashi 001; Naoyuki Shinohara; Lihua Wang 001; Shin'ichiro Matsuo; Masaaki Shirase; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2010)

Discrete logarithm based additively homomorphic encryption and secure data aggregation. - Licheng Wang; Lihua Wang 001; Yun Pan; Zonghua Zhang; Yixian Yang (Inf. Sci., 2011)

Solving a 676-Bit Discrete Logarithm Problem in GF(36n). - Takuya Hayashi 001; Naoyuki Shinohara; Lihua Wang 001; Shin'ichiro Matsuo; Masaaki Shirase; Tsuyoshi Takagi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012)

Identity-Based Proxy Cryptosystems with Revocability and Hierarchical Confidentialities. - Lihua Wang 001; Licheng Wang; Masahiro Mambo; Eiji Okamoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012)

CSP-DHIES: a new public-key encryption scheme from matrix conjugation. - Ping Pan; Lihua Wang 001; Licheng Wang; Lixiang Li 001; Yixian Yang (Secur. Commun. Networks, 2012)

Key-Private Proxy Re-encryption under LWE. - Yoshinori Aono; Xavier Boyen; Le Trieu Phong; Lihua Wang 001 (INDOCRYPT, 2013)

Efficient Construction of CCA-Secure Threshold PKE Based on Hashed Diffie-Hellman Assumption. - Yuanju Gan; Lihua Wang 001; Licheng Wang; Ping Pan; Yixian Yang (Comput. J., 2013)

Chameleon Hash Functions and One-Time Signature Schemes from Inner Automorphism Groups. - Ping Pan; Licheng Wang; Yixian Yang; Yuanju Gan; Lihua Wang 001; Chengqian Xu (Fundam. Informaticae, 2013)

Publicly Verifiable Secret Sharing Scheme with Provable Security against Chosen Secret Attacks. - Yuanju Gan; Lihua Wang 001; Licheng Wang; Ping Pan; Yixian Yang (Int. J. Distributed Sens. Networks, 2013)

Certificate-based proxy decryption systems with revocability in the standard model. - Lihua Wang 001; Jun Shao 001; Zhenfu Cao; Masahiro Mambo; Akihiro Yamamura; Licheng Wang (Inf. Sci., 2013)

Efficient threshold public key encryption with full security based on dual pairing vector spaces. - Yuanju Gan; Lihua Wang 001; Licheng Wang; Ping Pan; Yixian Yang (Int. J. Commun. Syst., 2014)

POSTER: PRINCESS: A Secure Cloud File Storage System for Managing Data with Hierarchical Levels of Sensitivity. - Lihua Wang 001; Takuya Hayashi 001; Sachiko Kanamori; Atsushi Waseda; Ryo Nojima; Shiho Moriai (CCS, 2015)

A Secure Automobile Information Sharing System. - Lihua Wang 001; Ryo Nojima; Shiho Moriai (IoTPTS@AsiaCCS, 2015)

Fast and Secure Linear Regression and Biometric Authentication with Security Update. - Yoshinori Aono; Takuya Hayashi 001; Le Trieu Phong; Lihua Wang 001 (IACR Cryptol. ePrint Arch., 2015)

Hardness Estimation of LWE via Band Pruning. - Yoshinori Aono; Le Trieu Phong; Lihua Wang 001 (IACR Cryptol. ePrint Arch., 2015)

Scalable and Secure Logistic Regression via Homomorphic Encryption. - Yoshinori Aono; Takuya Hayashi 001; Le Trieu Phong; Lihua Wang 001 (IACR Cryptol. ePrint Arch., 2016)

Proxy Re-Encryption Schemes with Key Privacy from LWE. - Le Trieu Phong; Lihua Wang 001; Yoshinori Aono; Manh Ha Nguyen; Xavier Boyen (IACR Cryptol. ePrint Arch., 2016)

Privacy-Preserving Logistic Regression with Distributed Data Sources via Homomorphic Encryption. - Yoshinori Aono; Takuya Hayashi 001; Le Trieu Phong; Lihua Wang 001 (IEICE Trans. Inf. Syst., 2016)

Privacy-Preserving Deep Learning: Revisited and Enhanced. - Le Trieu Phong; Yoshinori Aono; Takuya Hayashi 001; Lihua Wang 001; Shiho Moriai (ATIS, 2017)

A New Secure Matrix Multiplication from Ring-LWE. - Lihua Wang 001; Yoshinori Aono; Le Trieu Phong (CANS, 2017)

Efficient Key-Rotatable and Security-Updatable Homomorphic Encryption. - Yoshinori Aono; Takuya Hayashi 001; Le Trieu Phong; Lihua Wang 001 (SCC@AsiaCCS, 2017)

A Generic yet Efficient Method for Secure Inner Product. - Lihua Wang 001; Takuya Hayashi 001; Yoshinori Aono; Le Trieu Phong (NSS, 2017)

Privacy preserving extreme learning machine using additively homomorphic encryption. - Shohei Kuri; Takuya Hayashi 001; Toshiaki Omori; Seiichi Ozawa; Yoshinori Aono; Le Trieu Phong; Lihua Wang 001; Shiho Moriai (SSCI, 2017)

Input and Output Privacy-Preserving Linear Regression. - Yoshinori Aono; Takuya Hayashi 001; Le Trieu Phong; Lihua Wang 001 (IEICE Trans. Inf. Syst., 2017)

Privacy-Preserving Naive Bayes Classification Using Fully Homomorphic Encryption. - Sangwook Kim; Masahiro Omori; Takuya Hayashi 001; Toshiaki Omori; Lihua Wang 001; Seiichi Ozawa (ICONIP (4), 2018)

Securing Named Data Networking: Attribute-Based Encryption and Beyond. - Licheng Wang; Zonghua Zhang; Mianxiong Dong; Lihua Wang 001; Zhenfu Cao; Yixian Yang (IEEE Commun. Mag., 2018)

Efficient Homomorphic Encryption with Key Rotation and Security Update. - Yoshinori Aono; Takuya Hayashi 001; Le Trieu Phong; Lihua Wang 001 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018)

Privacy-Preserving Deep Learning via Additively Homomorphic Encryption. - Le Trieu Phong; Yoshinori Aono; Takuya Hayashi 001; Lihua Wang 001; Shiho Moriai (IEEE Trans. Inf. Forensics Secur., 2018)

A Fast Privacy-Preserving Multi-Layer Perceptron Using Ring-LWE-Based Homomorphic Encryption. - Takehiro Tezuka; Lihua Wang 001; Takuya Hayashi 001; Seiichi Ozawa (ICDM Workshops, 2019)

Verifiable Chebyshev maps-based chaotic encryption schemes with outsourcing computations in the cloud/fog scenarios. - Jing Li 045; Licheng Wang; Lihua Wang 001; Xianmin Wang; Zhengan Huang; Jin Li 002 (Concurr. Comput. Pract. Exp., 2019)

New Approaches to Federated XGBoost Learning for Privacy-Preserving Data Analysis. - Fuki Yamamoto; Lihua Wang 001; Seiichi Ozawa (ICONIP (2), 2020)

Enhanced Secure Comparison Schemes Using Homomorphic Encryption. - Lihua Wang 001; Tushar Kanti Saha; Yoshinori Aono; Takeshi Koshiba; Shiho Moriai (NBiS, 2020)

Non-transferability in Proxy Re-Encryption Revisited. - Arinjita Paul; Lihua Wang 001; S. Sharmila Deva Selvi; C. Pandu Rangan (J. Internet Serv. Inf. Secur., 2020)

Outlier Detection by Privacy-Preserving Ensemble Decision Tree U sing Homomorphic Encryption. - Kengo Itokazu; Lihua Wang 001; Seiichi Ozawa (IJCNN, 2021)

Permissioned Blockchain-Based XGBoost for Multi Banks Fraud Detection. - Septiviana Savitri Asrori; Lihua Wang 001; Seiichi Ozawa (ICONIP (3), 2022)

eFL-Boost: Efficient Federated Learning for Gradient Boosting Decision Trees. - Fuki Yamamoto; Seiichi Ozawa; Lihua Wang 001 (IEEE Access, 2022)

Privacy-Preserving Federated Learning for Detecting Fraudulent Financial Transactions in Japanese Banks. - Sachiko Kanamori; Taeko Abe; Takuma Ito; Keita Emura; Lihua Wang 001; Shuntaro Yamamoto; Le Trieu Phong; Kaien Abe; Sangwook Kim; Ryo Nojima; Seiichi Ozawa; Shiho Moriai (J. Inf. Process., 2022)

Differential Private (Random) Decision Tree Without Adding Noise. - Ryo Nojima; Lihua Wang 001 (ICONIP (9), 2023)

Security Evaluation of Decision Tree Meets Data Anonymization. - Ryousuke Wakabayashi; Lihua Wang 001; Ryo Nojima; Atsushi Waseda (ICISSP, 2024)

Simple Privacy-Preserving Federated Learning with Different Encryption Keys. - Haruto Yokomitsu; Ryo Nojima; Lihua Wang 001 (ISITA, 2024)

Frameworks for Privacy-Preserving Federated Learning. - Le Trieu Phong; Tran Thi Phuong; Lihua Wang 001; Seiichi Ozawa (IEICE Trans. Inf. Syst., 2024)