1.Keynote speech"Mobile Forensic aspects of Web browser: from HTML4 to HTML5"2014 International Workshop on Applications and Technologies in Cyber Security (ATCS)September 23, 2014, Beijing, China
2. Invited talk "Anatomy of BitCoin" in (ISC)2 Singapore Chapter’s Evening Seminar and Networking Event, 30th June 2014.
3. Invited talk “ID-based encryption scheme without key-escrow issue and its application to Flat digital rights management system.”, Cryptology 2014
4. Invited talk “Revisiting Identity-based encryption towards no-escrow: Application and analysis of Embedding Secret Key Information in RSA moduli”, ATIS 2013