About Me
I’m a final-year Ph.D. student at the School of Electrical and Data Engineering, University of Technology Sydney (UTS) where I am fortunate to be supervised by Associate Professor Hoang Dinh and Associate Professor Diep Nguyen. Before that, I completed a Master’s in Computer Science and a Bachelor’s in Information Systems at the School of Information and Communication Technology, Hanoi University of Science and Technology.
Research Interests
My current research focuses on advancing privacy-preserving technologies for machine learning and secure data analytics. I explore cutting-edge methods such as federated learning, homomorphic encryption, differential privacy, and secure multiparty computation to enhance data security while enabling robust and efficient computations. My ultimate goal is to design innovative solutions that achieve an optimal balance between privacy, scalability, and performance in real-world applications.
Selected Publications
Journal Papers
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Empowering AI with Homomorphic Encryption for Secure Deep Reinforcement Learning
Chi-Hieu Nguyen, Dinh Thai Hoang, Diep N. Nguyen, Kristin Lauter, Miran Kim
Nature Machine Intelligence, accepted 2025 -
Encrypted Data Caching and Learning Framework for Robust Federated Learning-Based Mobile Edge Computing [link]
Chi-Hieu Nguyen, Yuris Mulya Saputra, Dinh Thai Hoang, Diep N. Nguyen et al.
IEEE/ACM Transactions on Networking, 2024 -
Secure Human Pose Estimation from Wearable Sensors Using Homomorphic Encryption
Chi-Hieu Nguyen, Dinh Thai Hoang, Diep N. Nguyen, Mohammad Abu Alsheikh et al.
preparing for submission -
Secure Unsupervised Network Intrusion Detection via Deep Clustering and Homomorphic Encryption
Chi-Hieu Nguyen, Dinh Thai Hoang, Diep N. Nguyen, Mohammad Abu Alsheikh et al.
preparing for submission -
Privacy-Preserving Cyberattack Detection in Blockchain-Based IoT Systems Using AI and Homomorphic Encryption [link]
Bui Duc Manh, Chi-Hieu Nguyen, Dinh Thai Hoang, Diep N. Nguyen, Ming Zeng, Quoc-Viet Pham
IEEE Internet of Things Journal, 2025 -
Enabling Technologies for Web 3.0: A Comprehensive Survey [link]
Md Arif Hassan, Mohammad Behdad Jamshidi, Bui Duc Manh, Nam H. Chu, Chi-Hieu Nguyen et al.
Computer Networks, 2025 -
Efficient Multi-UAV Assisted Data Gathering Schemes for Maximizing the Operation Time of Wireless Sensor Networks in Precision Farming [link]
Khanh-Van Nguyen, Chi-Hieu Nguyen, Tien Van Do, Csaba Rotter
IEEE Transactions on Industrial Informatics
Conference Papers
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Demo: PP-AICloud for Edge-Assisted Privacy-Preserving AI Inference with Homomorphic Encryption in Cloud-Based Mobile Services
Chi-Hieu Nguyen, Bui Duc Manh, Dinh Thai Hoang, Diep N. Nguyen, Lin Wang
ACM MobiCom Demos, 2025 -
Towards Secure AI-empowered Vehicular Networks: A Federated Learning Approach using Homomorphic Encryption [link]
Chi-Hieu Nguyen, Bui Duc Manh, Dinh Thai Hoang, Diep N. Nguyen, Eryk Dutkiewicz
IEEE Vehicular Technology Conference (VTC2024-Fall) -
Homomorphic Encryption-Enabled Federated Learning for Privacy-Preserving Intrusion Detection in Resource-Constrained IoV Networks [link]
Bui Duc Manh, Chi-Hieu Nguyen, Dinh Thai Hoang, Diep N. Nguyen
IEEE Vehicular Technology Conference (VTC2024-Fall)
Achievements
I have actively participated in and earned top rankings in several online competitions hosted on the Fherma.io platform. This is a collaborative project by Fair Math Inc, OpenFHE, and IBM Research, dedicated to developing cutting-edge components for confidential computing, privacy-preserving machine learning, and blockchain applications.
- 1st place in the Array Sorting Challenge developed by IBM Research
- 1st place in the Parity Challenge (announced in an IBM blog post)
- 1st place in the Private Sentiment Analysis
- 1st place in the k-Nearest Neighbors Search
- 1st place in the CIFAR-10 Encrypted Image Classification Challenge
- 1st place in the Private Ethereum Fraud Detection
- 1st place in the Private House Price Prediction
- 1st place in the Invertible Matrix
- 1st place in the SHL Challenge, designed to evaluate the Shift Left opcode in the Ethereum Virtual Machine
- Co-winner of the ReLU Challenge
- 2nd place in several other challenges, including the Sign Function, Logistic Function, Max Function, and Lookup Table Challenges
Professional Services
TPC Member
- IEEE 100th Vehicular Technology Conference (VTC2024-Fall), 7-10 October 2024, Washington DC, USA
- IEEE Wireless Communications and Networking Conference, 21–24 April 2024, Dubai, United Arab Emirates
Reviewer
- IEEE Transactions on Information Forensics & Security (TIFS)
- IEEE Transactions of Mobile Computing (TMC)
- IEEE Transactions on Cognitive Communications and Networking (TCCN)
- IEEE Transactions on Network Science and Engineering (TNSE)
- IEEE Internet of Things Journal
- Proceedings of the IEEE