I am currently a postdoctoral researcher at University of Sydney, supervised by Dr. Qiang Tang. From 2021.6 to 2022.10, I was a senior security engineer at Alibaba Group. In 2021.6, I obtained my doctoral degree in Cryptography from Beihang University under the supervision of Prof. Jianwei Liu and Prof. Qianhong Wu. I was also trained at New Jersey Institue of Technology from 2019.9–2020.11. I got my bachelor degree in Mathematics from Beihang University. My research interests lie primarily in theoretical computer science and privacy-enhancing technologies.
Publications
Witness Authenticating NIZKs and Applications. (CRYPTO 2021)
Hanwen Feng, Qiang TangComputational Robust (Fuzzy) Extractors for CRS-Dependent Sources with Minimal Min-entropy. (TCC 2021)
Hanwen Feng, Qiang TangScape: Scalable Collaborative Analytics System on Private Database with Malicious Security. (ICDE 2022) Han Feng, Lan Zhang, Hanwen Feng, Weiran Liu, Xiangyang Li.
OpBoost: A Vertical Federated Tree Boosting Framework Based Order-Preserving Desensitization. (VLDB 2023) Xiaochen Li, Yuke Hu, Weiran Liu, Hanwen Feng, Li Peng, Yuan Hong, Kui Ren, Zhan Qin.
Traceable Ring Signatures: General Framework and Post-Quantum Security. (Designs, Codes and Cryptography, 2021,the extended version of CT-RSA’20 paper)
Hanwen Feng, Jianwei Liu, Dawei Li, Ya-Nan Li, Qianhong Wu.Traceable Ring Signatures with Post-quantum Security. (CT-RSA 2020)
Hanwen Feng, Jianwei Liu, Ya-Nan Li, Qianhong Wu.Secure Stern Signatures in Quantum Random Oracle Model. (ISC 2019)
Hanwen Feng, Jianwei Liu, Qianhong Wu.Two-layer Group Signature and Application to E-cash. (IEEE Cyber Science and Technology Congress 2019)
Hanwen Feng, Jianwei Liu, Qianhong Wu, Tongge Xu.Traceable Decentralized Anonymous E-Cash System Against Active Attackers. (IEEE Cyber Science and Technology Congress 2019)
Hanwen Feng, Jianwei Liu, Qianhong Wu, Tongge Xu.Predicate Fully Homomorphic Encryption: Achieving Fine-Grained Access Control over Manipulable Ciphertext. (INSCRYPT 2017)
Hanwen Feng, Jianwei Liu, Qianhong Wu, Weiran Liu.Group Signatures and Ring Signatures with Post-Quantum Security (A Chinese SoK). (Journal of Cryptologic Research, 2020)
Hanwen Feng, Jianwei Liu, Qianhong Wu.Making MA-ABE Fully Accountable: A Blockchain-based Approach for Secure Digital Right Management. (Computer Networks, 2021)
Yiming Hei, Jianwei Liu, Hanwen Feng, Dawei Li, Yizhong Liu, Qianhong Wu.A Decentralized and Secure Blockchain Platform for Open Fair Data Trading. Concurrency and Computation: Practice and Experience, 2020)
Ya‐Nan Li, Xiaotao Feng, Jan Xie, Hanwen Feng, Zhenyu Guan, Qianhong Wu.
Implementaions
I am contributing to mpc4j, a Java-based secure multiparty computation library supported by Alibaba.
Academic Services
I served as external reviewers for the following conferences: EUROCRYPT 2023, Okland 2023, CCS 2022, Usenix Security 2022, ASIACRYPT 2022, NDSS 2022, PKC 2022, ASIACRYPT 2021, CTRSA 2022, ACNS 2021, ICISC 2020, ESORICS 2020, ACISP 2020, etc.
Awards & Honors
I received Excellent Doctoral Dissertation Award from Beihang University, Outstanding Graduate Student in Cyber Science scholarship from China Internet Development Foundation, National Scholarship from China MOE, etc.