Invited Talks & Posters
2024
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High Throughput Lattice-based Signatures on GPUs: Comparing Falcon and Mitaka
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Talk in the Brainlink X-Lab Day 2024 workshop Security, Privacy, and Trust in AI
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Quantum-Safe HIBE: Does It Cost a Latte?
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Seminar in the Macquarie University Cyber Security Hub
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2023
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Securing Communications in the Post-Quantum Era
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Raymond K. Zhao, Sara Jafarbeiki
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Tutorial at AsiaCCS 2023
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Scalable and Efficient Hybrid QKD with Post-quantum Authentications
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Raymond K. Zhao, Dongxi Liu, Josef Pieprzyk
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Poster at Quantum Australia 2023
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Academic Conference Committee
Research
2026
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When Security Meets Usability: An Empirical Investigation of Post-Quantum Cryptography APIs
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Marthin Toruan, R.D.N. Shakya, Samuel Tseitkin, Raymond K. Zhao, Nalin Arachchilage
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To appear in USEC 2026
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2025
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Pegasus and PegaRing: Efficient (Ring) Signatures from Sigma-Protocols for Power Residue PRFs with (Q)ROM Security
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Xinyu Zhang, Ziyi Li, Ron Steinfeld, Raymond K. Zhao, Joseph K. Liu, Tsz Hon Yuen
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Nosy Layers, Noisy Fixes: Tackling DRAs in Federated Learning Systems using Explainable AI
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Meghali Nandi, Arash Shaghaghi, Nazatul H. Sultan, Gustavo Batista, Raymond K. Zhao, Sanjay Jha
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AsiaCCS 2025
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Enabling Quantum-Resistant EDHOC: Design and Performance Evaluation
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Lidia Pocero Fraile, Georgios Tasopoulos, Christos Koulamas, Raymond K. Zhao, Nazatul H. Sultan, Francesco Regazzoni, Apostolos P. Fournaris
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IEEE Access
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2024
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MIKA: A Minimalist Approach to Hybrid Key Exchange
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Raymond K. Zhao, Nazatul H. Sultan, Phillip Yialeloglou, Dongxi Liu, David Liebowitz, Josef Pieprzyk
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PST 2024
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LUNA: Quasi-Optimally Succinct Designated-Verifier Zero-Knowledge Arguments from Lattices
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Ron Steinfeld, Amin Sakzad, Muhammed F. Esgin, Veronika Kuchta, Mert Yassi, Raymond K. Zhao
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CCS 2024
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High Throughput Lattice-based Signatures on GPUs: Comparing Falcon and Mitaka
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Wai-Kong Lee, Raymond K. Zhao, Ron Steinfeld, Amin Sakzad, Seong Oun Hwang
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IEEE Transactions on Parallel and Distributed Systems
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Quantum-safe HIBE: does it cost a Latte?
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Raymond K. Zhao, Sarah McCarthy, Ron Steinfeld, Amin Sakzad, Máire O’Neill
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IEEE Transactions on Information Forensics and Security
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Quantum Key Distribution
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Jiafan Wang, Raymond Zhao, Dongxi Liu
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Australian patent 2024901225
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2023
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A New Look at Blockchain Leader Election: Simple, Efficient, Sustainable and Post-Quantum
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Muhammed F. Esgin, Oguzhan Ersoy, Veronika Kuchta, Julian Loss, Amin Sakzad, Ron Steinfeld, Wayne Yang, Raymond K. Zhao
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AsiaCCS 2023
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Energy Consumption Evaluation of Post-Quantum TLS 1.3 for Resource-Constrained Embedded Devices
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George Tasopoulos, Charis Dimopoulos, Apostolos P. Fournaris, Raymond K. Zhao, Amin Sakzad, Ron Steinfeld
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MAL-IoT 2023
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eMLE-Sig 2.0: A Signature Scheme based on Embedded Multilayer Equations with Heavy Layer Randomization
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Dongxi Liu, Raymond K. Zhao
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Submitted to the NIST Post-Quantum Cryptography: Additional Digital Signature Schemes
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2022
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Performance Evaluation of Post-Quantum TLS 1.3 on Resource-Constrained Embedded Systems
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George Tasopoulos, Jinhui Li, Apostolos P. Fournaris, Raymond K. Zhao, Amin Sakzad, Ron Steinfeld
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ISPEC 2022
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Efficient Verifiable Partially-Decryptable Commitments from Lattices and Applications
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Muhammed F. Esgin, Ron Steinfeld, Raymond K. Zhao
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PKC 2022
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MatRiCT+: More Efficient Post-Quantum Private Blockchain Payments
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Muhammed F. Esgin, Ron Steinfeld, Raymond K. Zhao
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S&P 2022
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Implementation of Post-Quantum Algorithms for Bouncy Castle Library
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Contributors of the Bouncy Castle
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Efficient Implementation Techniques for Lattice-based Cryptosystems
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My PhD Thesis at Monash University
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Supervised by Associate Professor Ron Steinfeld and Dr Amin Sakzad
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Certified on Feburary 2022
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2020
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COSAC: COmpact and Scalable Arbitrary-Centered Discrete Gaussian Sampling over Integers
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Raymond K. Zhao, Ron Steinfeld, Amin Sakzad
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PQCrypto 2020
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FACCT: FAst, Compact, and Constant-Time Discrete Gaussian Sampler over Integers
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Raymond K. Zhao, Ron Steinfeld, Amin Sakzad
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IEEE Transactions on Computers
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2019
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MatRiCT: Efficient, Scalable and Post-Quantum Blockchain Confidential Transactions Protocol
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Muhammed F. Esgin, Raymond K. Zhao, Ron Steinfeld, Joseph K. Liu, Dongxi Liu
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CCS 2019
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Practical MP-LWE-based encryption balancing security-risk versus efficiency
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Ron Steinfeld, Amin Sakzad, Raymond K. Zhao
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Designs, Codes and Cryptography
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2017
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Titanium: Post-Quantum Public-key Encryption and KEM Algorithms
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Ron Steinfeld, Amin Sakzad, Raymond K. Zhao
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Submitted to the NIST Post-Quantum Cryptography
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