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Personal profile


Joseph (Kai Sui) Liu is an Associate Professor in the Faculty of Information Technology, Monash University. He got my PhD from the Chinese University of Hong Kong at 2004. His research areas include cyber security, blockchain and applied cryptography. He has received more than 8500 citations and with more than 200 publications in top venues such as CRYPTO, ACM CCS, NDSS, INFOCOM.

He is currently the lead of the Monash Cyber Security Discipline Group. He has established the Monash Blockchain Technology Centre at 2019 and serve as the founding director. His remarkable research in linkable ring signature forms the theory basis of Monero (XMR), one of the largest cryptocurrencies in the world with current market capitalization more than US$2 billion.

He also serves as the Course Director of the re-branded Master of Cybersecurity, since 2020.

He has been given the prestigious ICT Researcher of the Year 2018 Award by the Australian Computer Society (ACS),  the largest professional body in Australia representing the ICT sector, for his contribution to the blockchain and cyber security community.


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Research interests

My research mainly focuses on cyber security and applying various cryptographic technologies into real world systems. They include, but are not limited to:

  • Cloud Security: cloud data protection, privacy in cloud, cloud access control
  • Electronic Healthcare System Security: security and privacy
  • Blockchain: security, privacy-preserving features
  • Lightweight Security: cryptographic algorithms for lightweight device (e.g. sensors, RFID etc.)
  • Applied Cryptography: public key cryptography, identity-based cryptography, digital signature, attribute-based system, anonymous signature (e.g. group signature, ring signature) etc.

Monash teaching commitment

Dr Joseph Liu has experience as the Lecturer for the following units in the Faculty of IT:

  • FIT2034 Computer programming 2
  • FIT5043 Distributed and big data processing
  • FIT5148 Distributed and big data processing

Community service

  • International Standardization Project Editor: International Standardization ISO/IEC JTC 1/SC 27 18033-5 Information technology -- Security techniques -- Encryption algorithms -- Part 5: Identity-based ciphers
  • Program Chair: ProvSec 2014, Pairing 2015, Cryptographic Track of EIDWT 2013, ProvSec 2007 (the founder of ProvSec), Applied Cryptography and Information Security (ACIS) 2006, ACISP 2016
  • Program Committee: CANS 2010, IWSEC 2010, IEEE TrustCom 2011, IWSEC 2011, ICICS 2012, ProvSec 2012, Inscrypt 2012, IEEE CloudCom 2012, IEEE TrustCom 2012, IEEE INCoS 2013, ProvSec 2013, IEEE TrustCom 2013, ISPEC 2014, NSS 2014, TrustCom 2015, SSR 2015, SocialSec 2015, ProvSec 2015, LSNS 2015, ISPEC 2015, ICPADS 2015, CPSS 2015
  • Editor: Guest Co-editors of Special Issue on 'Security and Privacy in Mobile Clouds' of Pervasive and Mobile Computing (PMC); Guest Co-editors of Special Issue on 'Provably Secure Cryptographic Solutions for Wireless Networks' of Security and Communication Networks (SCN); Guest Co-editors of Special Issue on 'Next-Generation Trustworthy Applications of Distributed Sensor Networks' of International Journal of Distributed Sensor Networks.

Education/Academic qualification

Information Engineering, Doctor of Philosophy, Chinese University of Hong Kong

Award Date: 30 Jul 2004

Information Engineering, Master of Philosophy, Chinese University of Hong Kong

Award Date: 31 Aug 2001

Information Engineering, Bachelor of Engineering, Chinese University of Hong Kong

Award Date: 31 Aug 1999

Research area keywords

  • cyber security
  • privacy enhanced technology
  • applied cryptography


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