Dr Shujun Li

Deputy Director of Surrey Centre for Cyber Security (SCCS), Senior Lecturer

Qualifications: BE (1997), PhD (2003), SrMIEEE, MACM, MISOC

Email:
Phone: Work: 01483 68 6057
Room no: 07 BB 02

Further information

Biography

Dr Shujun Li joined the University of Surrey in September 2011. Since July 2014, he has been a Deputy Director of the Surrey Centre for Cyber Security (SCCS), a UK government recognised Academic Centre of Excellence in Cyber Security Research (ACE-CSR), leading the Research Theme Human-Centred Security. He is also a member of the Secure Systems Research Group of the Department of Computer Science.

Dr Li received his BE degree in Information Science and Engineering from the Xi'an Jiaotong University in 1997, and his PhD degree in Information and Communication Engineering in 2003 from the same university. During September 2003 to January 2005, he was a postdoctoral Research Assistant with the City University of Hong Kong. From June 2005 to January 2007, he was a postdoctoral fellow under The Hong Kong Polytechnic University's Postdoctoral Fellowships Scheme. From March 2007 to June 2008, he was a Humboldt Research Fellow and doing his research at the FernUniversität in Hagen, Germany. From July 2008 to August 2011, he was a 5-Year  Research Fellow of the Zukunftskolleg, Universität Konstanz, Germany, also a junior faculty member of the Department of Computer and Information Science.

Dr Li has published around 100 scientific papers in international journals/conference proceedings and book chapters. He is currently on the editorial boards of Journal of Cyber Security and Mobility (2016-present), Heliyon (2015-present), Journal of Visual Communication and Image Representation (2012-present), Journal of Information Security and Applications (formerly known as Information Security Technical Report, 2012-present) and was on the editorial board of International Journal of Bifurcation and Chaos (2012-2014). He was/is serving on the technical program committees of many international conferences like ICC, GLOBECOM, ICME, ICIP, ISCAS, DASIP, ARES, INTRUST and some others. He is a Senior Member of the IEEE and a member of several IEEE societies (Computer Society, Communications Society, Signal Processing Society, Systems, Man, and Cybernetics Society, Circuits and Systems Society, Consumer Electronics Society) and technical committees. He is also a Professional Member of the ACM and several of its special interests groups (SIGSAC, SIGMM, SIGCHI, SIGCOMM). He was an active contributor to the ISO/IEC RVC Standard as a member of the MPEG (ISO/IEC JCT 1/SC 29/WG11) from 2009 to 2011. He is also a Global Member of the Internet Society (ISOC).

More information about Dr Li and his research can be found at his personal web site http://www.hooklee.com.

Research Interests

Word cloud of Shujun Li's research
Dr Shujun Li's research interests are mainly interplays among several different research areas: cyber security and privacy, digital forensics and cyber crime, human factors, and multimedia computing. Some research directions he is currently working on include usable security and privacy (human factors in computer security systems e.g. human modelling for cyber security, graphical passwords, CAPTCHAs, observer-resistant password systems, mobile security and privacy), multimedia security (applications of discrete optimization, multimedia encryption and cryptanalysis, digital watermarking, information hiding), security economy (e.g. e-banking security and anti-phishing solutions), visual quality assessment and performance evaluation of digital imaging and rendering devices (still cameras, camcorders, displays, scanners, printers, etc.), digital and multimedia forensics, multimedia coding (particularly MPEG Reconfigurable Video Coding and its applications in cryptography), applications of chaos and fractals in computing. He is also interested in cyber security, cyber crime and human-centred computing in general.

Research Collaborations

Supervised Research Assistants

  • Haiyue Yuan (2013-present)
  • Chuyi Qian (2014)
  • Hui Wang (2013-2015)
  • Ghulam Qadir (2013-2014)
  • Rui Hu (2013)

(Co-)Supervised PhD Students

As principal supervisor

As secondary supervisor

As un-official co-supervisors (helped to co-supervise the students for most of their work during their PhD studies)

As host of visiting PhD students

Selected Research Partners

Publications

Scientometrics

h-index (and g-index): Thomson Reuters' ResearcherID Google Scholar Citation Microsoft Academic Search

Erdös Number = 3: Charles K. Chui => Guanrong Chen => Shujun Li; Ron C. Mullin => Spyros S. Magliveras => Shujun Li

Selected Publications

  • Anthony TS Ho and Shujun Li, Handbook of Digital Forensics of Multimedia Data and Devices (e-book @ Wiley, Apple iBooks, e-book @ Google Books, book @ Amazon), 680 pages (e-book 704 pages), 16 chapters, ISBN: 978-1-118-64050-0 (e-book ISBN: 978-1-118-70579-7), John Wiley & Sons, Inc. and IEEE Press, September 2015 (Companion Website)
  • Hassan Jameel Asghar, Ron Steinfeld, Shujun Li, Dali Kaafar and Josef Pieprzyk, "On the Linearization of Human Identification Protocols: Attacks based on Linear Algebra, Coding Theory and Lattices," IEEE Transactions on Information Forensics and Security, vol. 10, no. 8, pp. 1643-1655, IEEE, 2015
  • Mario Čagalja, Toni Perković, Marin Bugarić and Shujun Li, "Fortune cookies and smartphones: Weakly unrelayable channels to counter relay attacks," Pervasive and Mobile Computing, vol. 20, pp. 64-81, Elsevier, 2015
  • Hui Wang, Anthony TS Ho and Shujun Li, "A Novel Image Restoration Scheme Based on Structured Side Information and Its Application to Image Watermarking," Signal Processing: Image Communication, vol. 29, no. 7, pp. 773-787, 2014
  • Hassan Jameel Asghar, Shujun Li, Ron Steinfeld and Josef Pieprzyk, "Does Counting Still Count? Revisiting the Security of Counting based User Authentication Protocols against Statistical Attacks," in Proceedings of 20th Annual Network & Distributed System Security Symposium (NDSS 2013), February 24-27, 2013, San Diego, CA, USA, Internet Society (Acceptance rate: 47/250=18.8%)
  • Shujun Li, Ahmad-Reza Sadeghi, Sören Heisrath, Roland Schmitz and Junaid Jameel Ahmad, "hPIN/hTAN: A Lightweight and Low-Cost e-Banking Solution against Untrusted Computers," in Financial Cryptography and Data Security: 15th International Conference, FC 2011, Gros Islet, St. Lucia, February 28 - March 4, 2011, Revised Selected Papers, Lecture Notes in Computer Science, vol. 7035, pp. 235-249, Springer, 2012 (Acceptance rate of long papers: 15/74=20.3%)
  • Toni Perković, Asma Mumtaz, Yousra Javed, Shujun Li, Syed Ali Khayam and Mario Čagalj, “Breaking Undercover: Exploiting Design Flaws and Nonuniform Human Behavior,” in Proceedings of 7th Symposium On Usable Privacy and Security (SOUPS 2011, Pittsburgh, PA, USA, July 20-22, 2011), ACM, 2011 (Acceptance rate: 15/45=33.3%)
  • Shujun Li, Andreas Karrenbauer, Dietmar Saupe and C.-C. Jay Kuo, “Recovering Missing Coefficients in DCT-Transformed Images,” in Proceedings of 18th IEEE International Conference on Image Processing (ICIP 2011, Brussels, Belgium, September 11-14, 2011), pp. 1569-1572, IEEE, 2011
  • Shujun Li, Syed Amier Haider Shah, Muhammad Asad Usman Khan, Syed Ali Khayam, Ahmad-Reza Sadeghi and Roland Schmitz, “Breaking e-Banking CAPTCHAs,” in Proceedings of 26th Annual Computer Security Applications Conference (ACSAC 2010, Austin, TX, USA, December 6-10, 2010), pp. 171-180, 2010, ACM, 2010 (Acceptance rate: 39/227=17.2%)
  • Shujun Li, Hassan Jameel Asghar, Josef Pieprzyk, Ahmad-Reza Sadeghi, Roland Schmitz and Huaxiong Wang, “On the Security of PAS (Predicate-based Authentication Service),” in Proceedings of 25th Annual Computer Security Applications Conference (ACSAC 2009), pp. 209-218, IEEE Computer Society, 2009 [Full paper: http://eprint.iacr.org/2009/476] (Acceptance rate: 44/224=19.6%)
  • Shujun Li and Roland Schmitz, “A Novel Anti-Phishing Framework Based on Honeypots,” in Proceedings of 4th Annual APWG eCrime Researchers Summit (eCRS 2009, Tacoma, WA, USA, October 20 & 21, 2009), 13 pages, IEEE, 2009 (Acceptance rate: 35%)
  • Chengqing Li, Shujun Li, Muhammad Asim, Juana Nunez, Gonzalo Alvarez and Guanrong Chen, “On the security defects of an image encryption scheme,” Image and Vision Computing, vol. 27, no. 9, pp. 1371-1381, Elsevier, 2009
  • Shujun Li, Chengqing Li, Kwok-Tung Lo and Guanrong Chen, “Cryptanalysis of an Image Scrambling Scheme without Bandwidth Expansion,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 18, no. 3, pp. 338-349, IEEE, 2008
  • Shujun Li, Chengqing Li, Kwok-Tung Lo and Guanrong Chen, “Cryptanalyzing an Encryption Scheme Based on Blind Source Separation,” IEEE Transactions on Circuits and Systems—I: Regular Papers, vol. 55, no. 4, pp. 1055-1063, IEEE, 2008
    Shujun Li, Chengqing Li, Guanrong Chen, Nikolaos G. Bourbakis and Kwok-Tung Lo, “A general quantitative cryptanalysis of permutation-only multimedia ciphers against plaintext attacks,” Signal Processing: Image Communication, vol. 23, no. 3, pp. 212-223, Elsevier, 2008
  • Shujun Li, Guanrong Chen, Albert Cheung, Bharat Bhargava and Kwok-Tung Lo, “On the Design of Perceptual MPEG-Video Encryption Algorithms,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 17, no. 2, pp. 214-223, IEEE, 2007
  • Gonzalo Álvarez and Shujun Li, “Some Basic Cryptographic Requirements for Chaos-Based Cryptosystems,” International Journal of Bifurcation and Chaos, vol. 16, no. 8, pp. 2129-2151, World Scientific, 2006
  • Shujun Li, Guanrong Chen and Xuanqin Mou, “On the Dynamical Degradation of Digital Piecewise Linear Chaotic Maps,” International Journal of Bifurcation and Chaos, vol. 15, no. 10, pp. 3119-3151, World Scientific, 2005
  • Shujun Li, Guanrong Chen and Xuanqin Mou, “On the Security of the Yi-Tan-Siew Chaotic Cipher,” IEEE Transactions on Circuits and Systems—II: Express Briefs, vol. 51, no. 12, pp. 665-669, IEEE, 2004

Click here for a complete list of Dr Li's publications.

Preprints of almost all papers and one book chapter can be found at his personal web site: http://www.hooklee.com/default.asp?t=Publications. Some recently accepted papers and other book chapters do not have preprints available because of either 1) the final editions are still not available; 2) the copyright transfer terms forbid posting preprints on web.

Teaching

Click here for a complete list of modules Dr Li has taught at the University of Surrey.

Departmental Duties

  • Deputy Director of Surrey Centre for Cyber Security (SCCS) (July 2014 - present)
  • Departmental Director of PhD Studies and PhD Admissions Tutor (December 2014 - present)
  • Member of University Ethics Committee (UEC) (May 2015 - present)
  • Departmental Representative to Faculty IT Governance Group (February 2014 - present)
  • Member of Departmental Research Management Committee (December 2014 - present)
  • Departmental Website Coordinator (September 2011 - present)
  • Member of Departmental Policy and Strategy Committee (December 2014 - June 2015)
  • Member of Departmental MSc Teaching Management Committee (June 2013 - June 2015)
  • Departmental MSc Admissions Tutor (May 2012 - September 2013)
  • Departmental Seminar Series Organiser (September 2011 - March 2012)

Affiliations

Professional activities of Dr Li can be found here.

Honours and Awards

See here for a complete list of honours and awards of Dr Li.

Research Grants and Fellowships

Click here for a complete list of Dr Li's research grants and fellowships.

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