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publications
Revocable and linkable ring signature
Published in International Conference on Information Security and Cryptology (Inscrypt 2019), 2019
Keywords: Ring signature, Ring confidential transaction, Revocability, Linkability
Recommended citation: Zhang, Xinyu, Joseph K. Liu, Ron Steinfeld, Veronika Kuchta, and Jiangshan Yu. "Revocable and linkable ring signature." In Information Security and Cryptology: 15th International Conference, Inscrypt 2019, Nanjing, China, December 6–8, 2019, Revised Selected Papers 15, pp. 3-27. Springer International Publishing, 2020.
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Smooth Transition from PoW to PoS
Published in The 6th ACM International Symposium on Blockchain and Secure Critical Infrastructure (BSCI), 2024
Keywords: Blockchain, Consensus, Proof of Work, Proof of Stake, Transition
DualRing-PRF: Post-Quantum (Linkable) Ring Signatures from Legendre and Power Residue PRFs
Published in The 29th Australasian Conference on Information Security and Privacy (ACISP 2024), 2024
Keywords: Ring Signature; Linkability; Post-Quantum; Symmetric Key Primitives
Recommended citation: Zhang, Xinyu, Ron Steinfeld, Joseph K. Liu, Muhammed F. Esgin, Dongxi Liu, and Sushmita Ruj. "DualRing-PRF: Post-quantum (Linkable) Ring Signatures from Legendre and Power Residue PRFs." In Australasian Conference on Information Security and Privacy, pp. 124-143. Singapore: Springer Nature Singapore, 2024.
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Loquat: A SNARK-Friendly Post-Quantum Signature based on the Legendre PRF with Applications in Ring and Aggregate Signatures
Published in Annual International Cryptology Conference (Crypto), 2024
Keywords: Post-Quantum Signature, Legendre PRF, SNARK, Aggregate Signature, ID-Based Ring Signature
Recommended citation: Zhang, Xinyu, Ron Steinfeld, Muhammed F. Esgin, Joseph K. Liu, Dongxi Liu, and Sushmita Ruj. "Loquat: A SNARK-Friendly Post-quantum Signature Based on the Legendre PRF with Applications in Ring and Aggregate Signatures." In Annual International Cryptology Conference, pp. 3-38. Cham: Springer Nature Switzerland, 2024.
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BDEC: Enhancing Learning Credibility via Post-Quantum Digital Credentials
Published in The 18th International Conference on Provable and Practical Security (ProvSec), 2024
Keywords: Digital Credential; Anonymous; Post-Quantum; Blockchain
Pegasus and PegaRing: Efficient (Ring) Signatures from Sigma-Protocols for Power Residue PRFs with (Q)ROM Security
Published in , 2025
Keywords: Legendre and Power Residue PRFs, Sigma Protocol, Post-Quantum, Signature, Ring Signature, QROM
talks
Post-Quantum Signatures from Symmetric Key Primitives
Published:
The talk introduced various symmetric key primitives-based post-quantum signatures, including hash-based one time signatures, XMSS, SPHINCS+, Picnic, and our work Loquat which was published in Crypto 2024. [Slides]
Post-Quantum Signatures from Legendre and Power Residue PRFs
Published:
The talk introduced the Legendre and power residue PRFs and our research output related to these PRFs. [Slides]
teaching
FIT1047 Introduction to Computer Systems, Networks and Security
Teaching Associate · Undergraduate Course · Monash University, Faculty of Information Technology · 2024 Semester 1, 2
This is a foundation unit for computer science. The unit will cover logic circuit construction, circuit optimization, assembly languages, computer network, and information security.
FIT5163 Information and Computer Security
Admin Teaching Associate · Master course · Monash University, Faculty of Information Technology · 2022 - 2024
This course is a cryptography foundation unit, students will learn symmetric key cryptography, asymmetric key cryptography such as RSA, DH key exchange, IBE, Schnorr’s signature, ring signature, lightweight cryptosystem, database security etc.