Dr Man Ho Allen Au

Associate Professor
Department of Computer Science
The University of Hong Kong
Office: Room 409, Chow Yei Ching Building, The University of Hong Kong
Email: allenau [at] cs.hku.hk
Phone: +852 2857-8243

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Dr Man Ho Allen Au is an Associate Professor at the Department of Computer Science in The Univerrsity of Hong Kong (HKU). Before joining HKU, he was an Associate Professor in the Department of Computing of The Hong Kong Polytechnic University during which he helped established the PolyU-MonashU-Collinstar Capital Joint Laboratory on Blockchain and Cryptocurrency Technologies, the first university-industry joint research laboratory on blockchain in Hong Kong and served as its founding co-director. Dr Au's research interests include information security, applied cryptography, blockchain technology, and their industrial applications.

Dr Au's research activities have been generously supported by the Innovation Technology Fund, the Research Grant Council of Hong Kong, the National Natural Science Foundation of China, local and foreign companies. His research outcomes appeared at major international conferences and journals, including CRYPTO, ASIACRYPT, ACM CCS, IEEE S&P, NDSS, ACM SIGMOD, IEEE TIFS, TDSC, TC, etc. Currently, he is serving as a committee member of the ISO/IEC JTC 1/SC 27 working group 2 - Cryptography and security mechanisms. He is also a committee member of the Hong Kong Blockchain Society R&D division.

News

2022

• "Public-Key Watermarking Schemes for Pseudorandom Functions", Rupeng Yang, Zuoxia Yu, Man Ho Au and Willy Susilo, accepted by CRYPTO 2022 (2022-05-20)
• "Efficient Verifiably Encrypted ECDSA-Like Signatures and Their Applications", Xiao Yang, Mengling Liu, Man Ho Au, Xiapu Luo and Qingqing Ye, accepted by IEEE TIFS (2022-3-16)
• "Towards Practical Auditing of Dynamic Data in Decentralized Storage", Huayi Duan, Yuefeng Du, Leqian Zheng, Cong Wang, Man Ho Au and Qian Wang, accepted by IEEE TDSC (2022-1-13)

2021

• "Dual-Anonymous Off-Line Electronic Cash for Mobile Payment", Jianbing Ni, Man Ho Au, Wei Wu, Xiapu Luo, Xiaodong Lin and Xuemin (Sherman) Shen, accepted by IEEE TMC (2021-12-2)
• "BIDL: A High-throughput, Low-latency Permissioned Blockchain Framework for Datacenter Networks", Ji Qi, Xusheng Chen, Yunpeng Jiang, Jianyu Jiang, Tianxiang Shen, Shixiong Zhao, Sen Wang, Gong Zhang, Li Chen, Man Ho Au and Heming Cui, accepted by SOSP 2021. (2021-08-07)
• "Efficient Online-friendly Two-Party ECDSA Signature", Haiyang Xue, Man Ho Au, Xiang Xie, Tsz Hon Yuen and Handong Cui, accepted by ACM CCS 2021. (2021-07-21)
• "DualRing: Generic Construction of Ring Signatures with Efficient Instantiations", Tsz Hon Yuen, Muhammed F. Esgin, Joseph K. Liu, Man Ho Au and Zhimin Ding, accepted by CRYPTO 2021. (2021-05-22)
• "Enabling Secure and Efficient Decentralized Storage Auditing with Blockchain", Yuefeng Du, Huayi Duan, Anxin Zhou, Cong Wang, Man Ho Au and Qian Wang, accepted by IEEE TDSC. (2021-05-12)
• "Happer: Unpacking Android Apps via a Hardware-Assisted Approach", Lei Xue, Hao Zhou, Xiapu Luo, Yijin Zhou, Yang Shi, Guofei Gu, Fengwei Zhang and Man Ho Au, accepted by IEEE S&P 2021. (2021-02-20)

2020

• "LF-GDPR: A Framework for Estimating Graph Metrics with Local Differential Privacy", Qingqing Ye, Haibo Hu, Man Ho Au, Xiaofeng Meng and Xiaokui Xiao, accepted by IEEE TKDE. (2020-12-16)
• "Possibility and Impossibility Results for Receiver Selective Opening Secure PKE in the Multi-Challenge Setting", Rupeng Yang, Junzuo Lai, Zhengan Huang, Man Ho Au, Qiuliang Xu and Willy Susilo, accepted by ASIACRYPT 2020.(2020-8-16)
• "PGC: Decentralized Confidential Payment System with Auditability", Yu Chen, Xuecheng Ma, Cong Tang and Man Ho Au, accepted by ESORICS 2020. (2020-6-29)
  
• "Collusion Resistant Watermarkable PRFs from Standard Assumptions", Rupeng Yang, Man Ho Au, Zuoxia Yu and Qiuliang Xu, accepted by CRYPTO 2020.(2020-5-16)
• "Geometric range search on encrypted data  with Forward/Backward security", Shabnam Kasra Kermanshahi, Shifeng Sun, Joseph Liu, Ron Steinfeld, Surya Nepal, Wang Fat Lau and Man Ho Au, accepted by IEEE TDSC. (2020-3-8)
• "LF-GDPR: A Framework for Estimating Graph Metrics with Local Differential Privacy", Qingqing Ye, Haibo Hu, Man Ho Au, Xiaofeng Meng and Xiaokui Xiao, accepted by ICDE 2020 [short paper]. (2020-2-7)
  
• "Practical Escrow Protocol for Bitcoin", Xiao Yang, Wang Fat Lau, Qingqing Ye, Man Ho Au, Joseph K. Liu and Jacob Cheng, accepted by IEEE TIFS. (2020-1-30)
• "RingCT 3.0 for Blockchain Confidential Transaction: Shorter Size and Stronger Security", Tsz Hon Yuen, Shi-feng Sun, Joseph K. Liu, Man Ho Au, Muhammed F. Esgin, Qingzhao Zhang and Dawu Gu, accepted by FC 2020. (2019-12-3)

2019

• "Collusion Resistant Watermarking Schemes for Cryptographic Functionalities", Rupeng Yang, Man Ho Au, Junzuo Lai, Qiuliang Xu and Zuoxia Yu, accepted by ASIACRYPT 2019.(2019-8-15)
• "Strongly Secure Authenticated Key Exchange from Supersingular Isogenies", Xiu Xu, Haiyang Xue, Kunpeng Wang, Man Ho Au and Song Tian, accepted by ASIACRYPT 2019.(2019-8-15)
• "Efficient Lattice-Based Zero-Knowledge Arguments with Standard Soundness: Construction and Applications", Rupeng Yang, Man Ho Au, Zhenfei Zhang, Qiuliang Xu, Zuoxia Yu and William Whyte, accepted by CRYPTO 2019.(2019-4-30)
• "Re-thinking untraceability in the CryptoNote-style blockchain", Jiangshan Yu, Man Ho Au and Paulo Esteves-Verissimo, accepted by CSF 2019. (2019-4-22)
• "Raptor: A Practical Lattice-Based (Linkable) Ring Signature", Xingye Lu, Man Ho Au and Zhenfei Zhang, accepted by ACNS 2019. (2019-4-2)
• "A Light-Weight White-Box Encryption Scheme for Securing Distributed Embedded Devices", Yang Shi, Wujing Wei, Hongfei Fan, Man Ho Au, Xiapu Luo, accepted by IEEE TC. (2019-3-13)
• "Aggregating Crowd Wisdom via Blockchain: A Private, Correct, and Robust Realization", Huayi Duan, Yifeng Zheng, Yuefeng Du, Anxin Zhou, Cong Wang, Man Ho Au, accepted by PerCom 2019. (2019-1-23)
• "New Empirical Traceability Analysis of CryptoNote-Style Blockchains", Zuoxia Yu, Man Ho Au, Jiangshan Yu, Rupeng Yang, Qiuliang Xu and Wang Fat Lau, accepted by FC 2019. (2018-11-14)

2018

• "A Distributed Evaluation Protocol with Privacy Protection for Intercloud", Dou Yi, Henry CB Chan and Man Ho Au, accepted by IEEE TPDS. (2018-11-7)
• "Towards Efficient Verifiable Conjunctive Keyword Search for Large Encrypted Database", Jianfeng Wang, Xiaofeng Chen, Shifeng Sun, Joseph K. Liu, Man Ho Au, Zhi-Hui Zhan, accepted by ESORICS 2018. (2018-6-15)
• "Achieving Flexibility for ABE with Outsourcing via Proxy Re-Encryption", Zuoxia Yu, Man Ho Au, Rupeng Yang, Junzuo Lai and Qiuliang Xu, accepted by ASIACCS 2018. (2018-3-3)
• "Hedged Nonce-Based Public-Key Encryption: Adaptive Security under Randomness Failures", Zhengan Huang, Junzuo Lai, Wenbin Chen, Man Ho Au, Zhen Peng and Jin Li, accepted by PKC 2018. (2017-12-14)
• "Anonymous Post-Quantum Cryptocash", Huang Zhang, Fangguo Zhang, Haibo Tian and Man Ho Au, accepted by FC 2018. (2017-12-14)
• "When Query Authentication Meets Fine-Grained Access Control: A Zero-Knowledge Approach", Cheng Xu, Jianliang Xu, Haibo Hu and Man Ho Au, accepted by SIGMOD 2018. (2017-11-19)

Additional Information

My name in Chinese is .

My parents also gave me the English name Allen when I was young. Please feel free to call me Allen!

Additional information about me can be found via the links below.

• Google Scholar
• DBLP
• My old page at PolyU

Contact

Office: Room 409, Chow Yei Ching Building, The University of Hong Kong, Hong Kong

Email: allenau [at] cs.hku.hk

Phone: +852 2857-8243

I am looking for self-motivated PhD students (Fall 2022 Admission) and have a number of Postdoc and RA positions availabe. Please send me an email if you are interested!