Dr. Allen M.H. Au

BEng, MPhil CUHK; PhD Wollongong
Associate Professor


Tel: (+852) 2857 8243
Fax: (+852) 2559 8447
Email: allenau@cs.hku.hk
Homepage: https://www.cs.hku.hk/~allenau

allenau full

 

Dr. Man Ho Allen Au is an associate professor of the Department of Computer Science in the University of Hong Kong (HKU). He received his BEng and MPhil degrees from the Department of Information Engineering of the Chinese University of Hong Kong in 2003 and 2005 respectively. He then obtained his PhD from the School of Computer Science and Software Engineering of the University of Wollongong in 2009.  Priori to joining HKU, he was an associate professor in the Department of Computing of the Hong Kong Polytechnic University. His research interests include applied cryptography, information security, blockchain technology, and related industrial applications. Dr. Au haspublished over 160 refereed papers in top journals and conferences, including CRYPTO, ASIACRYPT, ACM CCS, ACM SIGMOD, NDSS, IEEE TIFS, TC, TKDE, etc.  He is a recipient of the 2009 PET runner-up award for outstanding research in privacy enhancing technologies.

Dr. Au’s research has generated significant social and economic impact. In the past 5 years, he has, as the principal investigator, attracted over 25 million HKD in research and high-level consultancy projects. His digital signature technology has been adopted by the Hyperledger Fabric project, the most popular blockchain infrastructure supported by big industry players like IBM, Intel and SAP. His analysis on privacy, and design of new privacy-preserving techniques for confidential transactions, has been discussed and reported by leading privacy-friendly currencies such as Monero. Dr. Au is also an expert member of the China delegation of ISO/IEC JTC 1/SC 27 working group 2 - Cryptography and security mechanisms and a committee member of the Hong Kong Blockchain Society R&D division.

Research Interests

Information security, applied cryptography, blockchain technology, and related applications

Selected Publications

  • Xiu Xu, Haiyang Xue, Kunpeng Wang, Man Ho Au, and Song Tian, “Strongly Secure Authenticated Key Exchange from Supersingular Isogenies”, Proceedings of the 25th Annual International Conference on the Theory and Application of Cryptology and Information Security (AISACRYPT 2019), Dec 2019
  • Rupeng Yang, Man Ho Au, Junzuo Lai, Qiuliang Xu, and Zuoxia Yu, “Collusion Resistant Watermarking Schemes for Cryptographic Functionalities”, Proceedings of the 25th Annual International Conference on the Theory and Application of Cryptology and Information Security (AISACRYPT 2019), Dec 2019
  • Rupeng Yang, Man Ho Au, Zhenfei Zhang, Qiuliang Xu, Zuoxia Yu, and William Whyte, “Efficient Lattice-Based Zero-Knowledge Arguments with Standard Soundness: Construction and Applications”, Proceedings of the 38th Annual International Cryptology Conference (CRYPTO 2019), vol 11692 of Lecture Notes in Computer Science, pages 147 - 175, Springer, Aug 2019
  • Cheng Xu, Jianliang Xu, Haibo Hu, and Man Ho Au, “When Query Authentication Meets Fine-Grained Access Control: A Zero-Knowledge Approach”, Proceedings of the 2018 International Conference on Management of Data (SIGMOD 2018), pages 147-162, Jun 2018
  • Yong Yu, Man Ho Au, Giuseppe Ateniese, Xinyi Huang, Willy Susilo, Yuanshun Dai, and Geyong Min, “Identity-Based Remote Data Integrity Checking with Perfect Data Privacy Preserving for Cloud Storage”, IEEE Transactions on Information Forensics and Security (TIFS) 12(4): 767-778, 2017
  • Man Ho Au, Joseph K. Liu, Willy Susilo, and Jianying Zhou, “Realizing Fully Secure Unrestricted ID-Based Ring Signature in the Standard Model Based on HIBE”, IEEE Transactions on Information Forensics and Security (TIFS) 8(12): 1909-1922, 2013
  • Man Ho Au, and Apu Kapadia, “PERM: Practical Reputation-Based Blacklisting without TTPs”, Proceedings of the 19th ACM Conference on Computer and Communications (CCS 2012), pages 929-940, Oct 2012
  • Man Ho Au, Apa Kapadia, and Willy Susilo, “BLACR: TTP-Free Blacklistable Anonymous Credentials with Reputation”, Proceedings of the 19th Annual Network and Distributed System Security Symposium (NDSS 2012), Feb 2012
  • Patrick P. Tsang, Man Ho Au, Apu Kapadia, and Sean W. Smith, “PEREA: Towards Practical TTP-Free Revocation in Anonymous Authentication”, Proceedings of the 15th ACM Conference on Computer and Communications (CCS 2008), pages 333-344, Oct 2008
  • Patrick P. Tsang, Man Ho Au, Apu Kapadia, and Sean W. Smith, “Blacklistable Anonymous Credentials: Blocking Misbehaving Users without TTPs”, Proceedings of the 14th ACM Conference on Computer and Communications (CCS 2007), pages 72-81, Oct-Nov 2007

Recent Research Grants

  • 2020 抗量子隐私保护密码方案的关键技术研究 (NSFC)
  • 2019 Blockchain for Logistics – Connecting Physical Goods with their Digital Identifiers (ITF PRP)
  • 2018 Anonymous Digital Signatures in the Post-Quantum Era: Secure and Efficient Constructions (ITF Tier 3)
  • 2018 Accountable Privacy-Preserving Authentications: New Constructions from Post-Quantum Cryptography (GRF ECS)
  • 2017 Blockchain-Based Food and Drug Counterfeit Detection and Regulatory System (ITF UICP)
  • 2017 发布/订阅服务中保护用户隐私与可证明安全密码方案的关键技术研究 (NSFC ECS)