Chang Ee-Chien

Office, Mailing address.


I obtained my B.Sc (Hons) in Math from National University of Singapore (NUS) and M.Sc from I2R (formerly Institute of System Science), NUS. I obtained my Ph.d in May 1998 from the Department of Computer Science, New York University. I was a post-doc in DIMACS and NEC Research Institute from July 1999 to July 2000. I was with the Department of Computational Science, NUS in 1998 and 2000. Currently, I am an associate professor in the Department of Computer Science, School of Computing, NUS.

Research interests

Network security, applied cryptography, multimedia/biometric security and multimedia delivery.

Demo on Aesthetic QR Code generation.


Publications listed in chronological order.

Professional Activities

Modules Taught

CS3230, Algorithms, (2002,2003,2004,2005)
CS4241, MultiMedia Information Systems, (2003,2004,2005)
CS4236, Principle of Computer Security, (2006,2007,2008,2010)
CS4236, Cryptography Theory and Practice, (2012)
CS6230, Topics in Information Security, (2006)
CS5231, Cryptographic Techniques and Data Security, (2007,2009)
CS1231, Discrete Structures, (2008)
CS5321, Network Security and Management, (2009,2011)


PhD students (year of graduation and first appointment after graduation)

Li Qiming, 2006, Research Fellow, Polytechnic University, New York.
Sujoy Roy, 2006, Research Fellow, Institute for Infocomm Research, Singapore.
Yu Hang, 2007, Research Fellow, Institute for Infocomm Research, Singapore.
Ye Shuiming, 2007 (co-supervised with Sun Qibin), Research Fellow, EPFL, Swizterland.
Nguyen Vu Thanh, 2008, Research Analyst, AMI-Partners, Singapore.
Lu Liming, 2011 (co-supervised with Chan Mun Choon), Software Developer, CE-Infosys Pte Ltd.
Xu Jia 2012, Research Fellow, Institute for Infocomm Research, Singapore.
Fang Chengfang 2014, Researcher, Huawei International, Singapore.
Zhang Chunwang.

MSc students

Guan Xin, 2001, continuing PhD studies in SUNY, Stony Brook.
Gao Ping, 2004.
Shen Ren, 2006, Associate, Risk Advisory Services, KPMG, Singapore
Wang Yuyi, 2010, continuing PhD studies in K. U. Leuven, Belgium


Yu Jie, Sep 2008 to Sep 2009, from National University of Defense Technology, China
Liu Xuejiao, Sep 2009 to Aug 2010, from Huazhong Normal University, China