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PhD Thesis

Shujun Li, "Analyses and New Designs of Digital Chaotic Ciphers (数字化混沌密码的分析与设计)," PhD thesis, School of Electronic and Information Engineering, Xi'an Jiaotong University, supervised by Prof. Yuanlong Cai and Prof. Xuanqin Mou, submitted in April 2003, defense passed on 13 June 2003, approved in 30 June 2003 (last modified on 16 November 2007, to correct minor errors and to update references) Note: The survey on chaotic cryptography included in Chapter 2 of the thesis has been outdated to some extent, see the following two talks that Shujun LI delivered in 2005 for more information: Digital Chaotic Ciphers (, 1.03MB), Analog Chaos-Based Secure Communications (, 4.34MB). For an extended version of Chapter 3, see the paper "On the Dynamical Degradation of Digital Piecewise Linear Chaotic Maps" () published in International Journal of Bifurcation and Chaos in 2005.

Scientific Softwares

• Shujun Li, "mpegSyntaxer - Visual Syntax Viewer of MPEG-1/2 Videos," version 1.0 beta, a joint product of the Centre for Chaos and Complex Networks (CCCN) and the Applied R&D Centres, City University of Hong Kong, 2005 © City University of Hong Kong
• Shujun Li, SecHCI: Secure Human-Computer Identification System against Peeping (Observer) Attacks, 2002, last updated on 24 July, 2004
• Shujun Li, ChinaTEX Project: TEX/LATEX Tools, Packages and Templates, 2001-present

Book

陈志杰、赵书钦、李树钧、万福永（编），《LATEX入门与提高》（第二版），高等教育出版社，中国北京，2006年5月，ISBN：7-04-019379-5，238页，附ChinaTEX CD版光盘（20060111版）一张，定价：人民币44.8元 [在线销售地址] Zhijie Chen, Shuqin Zhao, Shujun Li, Fuyong Wan (Editors), "LATEX: From a Starter to a Master," 2nd edition, Higher Education Press, Beijing, China, May 2006, ISBN: 7-04-019379-5, 238 pages, with a ChinaTEX CD (built on 20060111), price: RMB 44.8 [online sale link] [cover]

Book Chapters

• Shujun Li, Zhong Li and Wolfgang A. Halang, "Multimedia Encryption," article in Encyclopedia of Multimedia Technology and Networking, edited by Margherita Pagani, Volume II, pp. 972-977, ISBN: 9781605660141, August 2008 © IGI Global
• Shujun Li, Guanrong Chen and Xuan Zheng, "Chaos-Based Encryption for Digital Images and Videos," (Review), Chapter 4 of Multimedia Security Handbook (online version), edited by Borko Furht and Darko Kirovski, pp. 133-167, ISBN: 9780849327735, December 2004 © CRC Press LLC (currently part of Taylor and Francis Group, LLC)
  This book was republished in March 2006 by Auerbach Publications (also part of Taylor and Francis Group, LLC) with a different title "Multimedia Encryption and Authentication Techniques and Applications" (ISBN: 9780849372124).

Peer-Reviewed Papers

Note: The underlined names like "Shujun Li" and "Gonzalo Alvarez" denote corresponding authors. The same rule also applies to e-prints.

In Press

• Shujun Li, Syed Amier Haider Shah, Muhammad Asad Usman Khan, Syed Ali Khayam, Ahmad-Reza Sadeghi and Roland Schmitz, "Breaking e-Banking CAPTCHAs," accepted to 26th Annual Computer Security Applications Conference (ACSAC 2010), to be held in Austin, Texas, USA, December 6-10, 2010 (Acceptance rate: 39/227=17.2%) © ACM
• Hassan Jammel Asghar, Shujun Li, Josef Pieprzyk and Huaxiong Wang, "Cryptanalysis of the Convex Hull Click Human Identification Protocol," accepted to 13th Information Security Conference (ISC 2010), to be held in Deerfield Beach, Florida, USA, October 25-28, 2010 (Acceptance rate: 37/134=27.6%) © Springer-Verlag GmbH
• Shujun Li, Junaid Jameel Ahmad, Dietmar Saupe and C.-C. Jay Kuo, "An Improved DC Recovery Method from AC Coefficients of DCT-Transformed Images," accepted to 17th IEEE International Conference on Image Processing (ICIP 2010), to be held in Hong Kong, China, September 26-29, 2010 Companion Web Page © IEEE
• David Arroyo, Alvarez, José María Amigó, Shujun Li and Gonzalo Alvarez, "On the inadequacy of unimodal maps for cryptographic applications," accepted to 11th Spanish Meeting on Cryptology and Information Security (RECSI 2010), to be held in Tarragona, Spain, 7-10 September, 2010

2011

1. Chengqing Li, Shujun Li and Kwok-Tung Lo, "Breaking a modified substitution-diffusion image cipher based on chaotic standard and logistic maps," Communications in Nonlinear Science and Numerical Simulations, vol. 16, no. 2, pp. 837-843, 2011 © Elsevier Science B. V.
2. David Arroyo, Gonzalo Alvarez, José María Amigó and Shujun Li, "Cryptanalysis of a family of self-synchronizing chaotic stream ciphers," Communications in Nonlinear Science and Numerical Simulations, vol. 16, no. 2, pp. 805-813, 2011 © Elsevier Science B. V.

2010

1. Chengqing Li, Shujun Li, Kwok-Tung Lo and Kyandoghere Kyamakya, "A differential cryptanalysis of Yen-Chen-Wu multimedia cryptography system," Journal of Systems and Software, vol. 83, no. 8, pp. 1443-1452, 2010 © Elsevier Science B. V.
2. A.B. Orue, G. Alvarez, G. Pastor, M. Romera, F. Montoya and Shujun Li, "A new parameter determination method for some double-scroll chaotic systems and its applications to chaotic cryptanalysis," Communications in Nonlinear Science and Numerical Simulations, vol. 15, no. 11, pp. 3471-3483, 2010 © Elsevier Science B. V.
3. David Arroyo, Shujun Li, Gonzalo Alvarez, José María Amigó and Rhouma Rhouma, "Comments on 'Image encryption with chaotically coupled chaotic maps'," Physica D, vol. 239, no. 12, pp. 1002-1006, 2010 © Elsevier Science B. V.

• Shujun Li, Syed Ali Khayam, Ahmad-Reza Sadeghi and Roland Schmitz, "Breaking Randomized Linear Generation Functions based Virtual Password System," in Proceedings of 35th IEEE International Conference on Communications (ICC 2010, Communication and Information Systems Security Symposium), IEEE, 2010 © IEEE
• Shujun Li, Ahmad-Reza Sadeghi and Roland Schmitz, "hPIN/hTAN: Low-Cost e-Banking Secure against Untrusted Computers," in: Financial Cryptography and Data Security: 14th International Conference, FC 2010, Tenerife, Canary Islands, January 25-28, 2010, Revised Selected Papers. Proceedings, Lecture Notes in Computer Science, vol. 6052, p. 429, 2010 © Springer-Verlag GmbH

2009

1. Rhouma Rhouma, Ercan Solak, David Arroyo, Shujun Li, Gonzalo Alvarez and Safya Belghitha, "Comment on “Modified Baptista type chaotic cryptosystem via matrix secret key” [Phys. Lett. A 372 (2008) 5427]," Physics Letters A, vol. 373, no. 37, pp. 3398-3400, 2009 © Elsevier Science B. V.
2. A.B. Orue, V. Fernandez, G. Alvarez, G. Pastor, M. Romera, F. Montoya, C. Sanchez-Avila and Shujun Li, "Breaking a SC-CNN-based Chaotic Masking Secure Communication System," International Journal of Bifurcation and Chaos, vol. 19, no. 4, pp. 1329-1338, 2009 © World Scientific Inc.
3. David Arroyo, Gonzalo Alvarez, Shujun Li, Chengqing Li and Veronica Fernandez, "Cryptanalysis of a New Chaotic Cryptosystem Based on Ergodicity," International Journal of Modern Physics B, vol. 23, no. 5, pp. 651-659, 2009 © World Scientific Inc.
4. David Arroyo, Chengqing Li, Shujun Li, Gonzalo Alvarez and Wolfgang A. Halang, "Cryptanalysis of an image encryption scheme based on a new total shuffling algorithm," Chaos, Solitons & Fractals, vol. 41, no. 5, pp. 2613-2616, 2009 © Elsevier Science B. V.
5. G. Alvarez and Shujun Li, "Cryptanalyzing a nonlinear chaotic algorithm (NCA) for image encryption," Communications in Nonlinear Science and Numerical Simulations, vol. 14, no. 11, pp. 3743-3749, 2009 © Elsevier Science B. V.
6. 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, 2009 © Elsevier Science B. V.
7. Chengqing Li, Shujun Li, Guanrong Chen and Wolfgang A. Halang, "Cryptanalysis of an image encryption scheme based on a compound chaotic sequence," Image and Vision Computing, vol. 27, no. 8, pp. 1035-1039, 2009 © Elsevier Science B. V.
8. David Arroyo, Chengqing Li, Shujun Li, Gonzalo Alvarez, "Cryptanalysis of a computer cryptography scheme based on a filter bank," Chaos, Solitons & Fractals, vol. 41, no. 1, pp. 410-413, 2009 © Elsevier Science B. V.

• 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, Honolulu, Hawaii, USA, December 7-11, 2009), pp. 209-218, 2009, DOI: 10.1109/ACSAC.2009.27 (Acceptance rate: 44/224=19.6%) [IACR ePrint 2009/476] © IEEE
• Shujun Li and Roland Schmitz, "A Novel Anti-Phishing Framework Based on Honeypots," in: Proceedings of 4th Annual APWG eCrime Researchers Summit (eCrime 2009 or eCRS 2009, Tacoma, WA, USA, October 20 & 21, 2009) (Acceptance rate: 35%) © IEEE
• Shujun Li, Guanrong Chen, Albert Cheung, Kwok-Tung Lo and Mohan Kankanhalli, "On the Security of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables," in: Advances in Image and Video Technology - Third Pacific Rim Symposium, PSIVT 2009, Tokyo, Japan, January 13-16, 2009. Proceedings, Lecture Notes in Computer Science, vol. 5414, pp. 898-909, 2009 © Springer-Verlag GmbH

• David Arroyo, Gonzalo Alvarez and Shujun Li, "Some Hints for the Design of Digital Chaos-Based Cryptosystems: Lessons Learned from Cryptanalysis," presented at the 2nd IFAC Meeting on Analysis and Control of Chaotic Systems (IFAC CHAOS 2009), Queen Mary, University of London, UK, June 22-24, 2009, paper ID TD1_2

2008

1. David Arroyo, Rhouma Rhouma, Gonzalo Alvarez, Shujun Li and Veronica Fernandez, "On the security of a new image encryption scheme based on chaotic map lattices," Chaos, vol. 18, no. 3, art. no. 033112, 2008 © AIP
2. A.B. Orue, V. Fernandez, G. Alvarez, G. Pastor, M. Romera, Shujun Li and F. Montoya, "Determination of the parameters for a Lorenz system and application to break the security of two-channel chaotic cryptosystems," Physics Letters A, vol. 372, no. 34, pp. 5588-5592, 2008 © Elsevier Science B. V.
3. Shujun Li, Chengqing Li, Guanrong Chen and Kwok-Tung Lo, "Cryptanalysis of RCES/RSES image encryption scheme," Journal of Systems and Software, vol. 81, no. 7, pp. 1130-1143, 2008 © Elsevier Science B. V.
4. 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, April 2008 © IEEE
5. 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, 2008 © Elsevier Science B. V.
6. 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, 2008 (Regular Transaction Paper) © IEEE
7. Chengqing Li, Shujun Li, Gonzalo Álvarez, Guanrong Chen and Kwok-Tung Lo, "Cryptanalysis of a chaotic block cipher with external key and its improved version," Chaos, Solitons & Fractals, vol. 37, no. 1, pp. 299-307, 2008 © Elsevier Science B. V.
8. David Arroyo, Gonzalo Alvarez, Shujun Li, Chengqing Li and Juana Nunez, "Cryptanalysis of a discrete-time synchronous chaotic encryption system," Physics Letters A, vol. 372, no. 7, pp. 1034-1039, 2008 © Elsevier Science B. V.

2007

1. Chengqing Li, Shujun Li, Gonzalo Álvarez, Guanrong Chen and Kwok-Tung Lo, "Cryptanalysis of two chaotic encryption schemes based on circular bit shift and XOR operations," Physics Letters A, vol. 369, no. 1-2, pp. 23-30, 2007 © Elsevier Science B. V.
2. 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, 2007 (Regular Transaction Paper) © IEEE
3. Gonzalo Álvarez, Shujun Li and Luis Hernandez, "Analysis of security problems in a medical image encryption system," Computers in Biology and Medicine, vol. 37, no. 3, pp. 424-427, 2007 © Elsevier Science B. V.
4. Shujun Li and Kwok-Tung Lo, "Security problems with improper implementations of improved FEA-M," Journal of Systems and Software, vol. 80, no. 5, pp. 791-794, 2007 © Elsevier Science B. V.

• Shujun Li, Gonzalo Álvarez, Zhong Li and Wolfgang A. Halang, "Analog Chaos-based Secure Communications and Cryptanalysis: A Brief Survey," (Full Edition), in: The 3rd International IEEE Scientific Conference on Physics and Control (PhysCon 2007), September 3rd-7th 2007 at the University of Potsdam (Abstract Collection), edited by Jürgen Kurths, Alexander Fradkov and Guanrong Chen, page 92, 2007

2006

1. Shujun Li, Chengqing Li, Kwok-Tung Lo and Guanrong Chen, "Cryptanalysis of an image encryption scheme," Journal of Electronic Imaging, vol. 15, no. 4, article number 043012, 2006 © SPIE
2. Gonzalo Álvarez and Shujun Li, "Some Basic Cryptographic Requirements for Chaos-Based Cryptosystems," International Journal of Bifurcation and Chaos (Tutorial-Review Section), vol. 16, no. 8, pp. 2129-2151, 2006 © World Scientific Inc.
3. Shujun Li, Guanrong Chen and Gonzalo Álvarez, "Return-Map Cryptanalysis Revisited," International Journal of Bifurcation and Chaos, vol. 16, no. 5, pp. 1557-1568, 2006 © World Scientific Inc.
4. Gonzalo Álvarez and Shujun Li, "Breaking an encryption scheme based on chaotic Baker map," Physics Letters A, vol. 352, no. 1-2, pp. 78-82, 2006 © Elsevier Science B. V.
5. Chengqing Li, Shujun Li, Der-Chyuan Lou and Dan Zhang, "On the security of the Yen-Guo's domino signal encryption algorithm (DSEA)", Journal of Systems and Software, vol. 79, no. 2, pp. 253-258, 2006 © Elsevier Science B. V.
6. Chengqing Li, Shujun Li, Guanrong Chen and Dan Zhang, "Cryptanalysis of a data security protection scheme for VoIP," IEE Proceedings - Vision, Image & Signal Processing (now succeeded by IET Image Processing, IET Signal Processing and IET Computer Vision), vol. 153, no. 1, pp. 1-10, 2006 © IET (former IEE)

2005

1. Shujun Li, Guanrong Chen and Xuanqin Mou, "On the Dynamical Degradation of Digital Piecewise Linear Chaotic Maps," International Journal of Bifurcation and Chaos (Tutorial-Review Section), vol. 15, no. 10, pp. 3119-3151, 2005 © World Scientific Inc.
2. Kwok-wo Wong, Kwan-Pok Man, Shujun Li and Xiaofeng Liao, "A More Secure Chaotic Cryptographic Scheme based on Dynamic Look-up Table," Circuits, Systems & Signal Processing, vol. 24, no. 5, pp. 571-584, 2005 © Birkhäuser Boston Inc. (Part of Springer)
3. Gonzalo Álvarez, Luis Hernández, Jaime Muñóz, Fausto Montoya and Shujun Li, "Security analysis of communication system based on the synchronization of different order chaotic systems," Physics Letters A, vol. 345, no. 4-6, pp. 245-250, 2005 © Elsevier Science B. V.
4. Chengqing Li, Shujun Li, Guanrong Chen, Gang Chen and Lei Hu, "Cryptanalysis of a New Signal Security System for Multimedia Data Transmission," EURASIP Journal on Applied Signal Processing, vol. 2005, no. 8, pp. 1277-1288, 2005 © Hindawi Publishing Corporation
5. Shujun Li, Gonzalo Álvarez, Guanrong Chen and Xuanqin Mou, "Breaking a chaos-noise-based secure communication scheme," Chaos, vol. 15, no. 1, article 013703 (10 pages), March 2005 © AIP
6. Shujun Li, Gonzalo Álvarez and Guanrong Chen, "Breaking a chaos-based secure communication scheme designed by an improved modulation method," Chaos, Solitons & Fractals, vol. 25, no. 1, pp. 109-120, 2005 © Elsevier Science B. V.
7. G. Álvarez, Shujun Li, F. Montoya, G. Pastor and M. Romera, "Breaking projective chaos synchronization secure communication using filtering and generalized synchronization," Chaos, Solitons & Fractals, vol. 24, no. 3, pp. 775-783, 2005 © Elsevier Science B. V.

• Chengqing Li, Shujun Li, Dan Zhang and Guanrong Chen, "Chosen-Plaintext Cryptanalysis of a Clipped-Neural-Network-Based Chaotic Cipher," in: Advances in Neural Networks – ISNN 2005: Second International Symposium on Neural Networks, Chongqing, China, May 30 - June 1, 2005, Proceedings, Part II, Lecture Notes in Computer Science, vol. 3497, pp. 630-636, 2005 © Springer-Verlag GmbH
• Chengqing Li, Xinxiao Li, Shujun Li and Guanrong Chen, "Cryptanalysis of a Multistage Encryption System", in: Proceedings of the 2005 IEEE International Symposium on Circuits and Systems (ISCAS 2005, Kobe, Japan, May 23-26, 2005), pp. 880-883, 2005 © IEEE Copyright Declaration
• Daniel Socek, Shujun Li, Spyros S. Magliveras and Borko Furht, "Enhanced 1-D Chaotic Key-Based Algorithm for Image Encryption," in: Proceedings of the First IEEE/CreateNet International Conference on Security and Privacy for Emerging Areas in Communication Networks (SecureComm 2005, Athens, Greece, September 5-9, 2005), pp. 406-408 (short paper), 2005 © IEEE Computer Society

2004

1. 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, 2004 © IEEE
2. Shujun Li, Guanrong Chen, Kwok-Wo Wong, Xuanqin Mou and Yuanlong Cai, "Baptista-type chaotic cryptosystems: problems and countermeasures," Physics Letters A, vol. 332, no. 5-6, pp. 368-375, 2004 © Elsevier Science B. V.
3. Gonzalo Álvarez and Shujun Li, "Breaking network security based on synchronized chaos," Computer Communications, vol. 27, no. 16, pp. 1679-1681, 2004 © Elsevier Science B. V.

• Chengqing Li, Shujun Li, Dan Zhang and Guanrong Chen, "Cryptanalysis of a Chaotic Neural Network Based Multimedia Encryption Scheme," in: Advances in Multimedia Information Processing - PCM 2004: 5th Pacific Rim Conference on Multimedia, Tokyo, Japan, November 30 - December 3, 2004. Proceedings, Part III, Lecture Notes in Computer Science, vol. 3333, pp. 418-425, Springer-Verlag, Berlin, 2004 © Springer-Verlag GmbH

2003

1. Shujun Li, Xuanqin Mou, Boliya L. Yang, Zhen Ji and Jihong Zhang, "Problems with a Probabilistic Encryption Scheme Based on Chaotic Systems", International Journal of Bifurcation and Chaos, vol. 13, no. 10, pp. 3063-3077, 2003 © World Scientific Inc.
2. Shujun Li, Xuanqin Mou, Yuanlong Cai, Zhen Ji and Jihong Zhang, "On the security of a chaotic encryption scheme: problems with computerized chaos in finite computing precision," Computer Physics Communications, vol. 153, no.1, pp. 52-58, 2003 © Elsevier Science B. V.
3. Shujun Li, Xuanqin Mou, Zhen Ji, Jihong Zhang and Yuanlong Cai, "Performance analysis of Jakimoski-Kocarev attack on a class of chaotic cryptosystems," Physics Letters A, vol. 307, no. 1, pp. 22-28, 2003 © Elsevier Science B. V.
4. Shujun Li, Xuanqin Mou, Zhen Ji and Jihong Zhang, "Cryptanalysis of a Class of Chaotic Stream Ciphers (一类混沌流密码的分析)", Journal of Electronics & Information Technology (《电子与信息学报》), vol. 25, no. 4, pp. 473-478, 2003 © Institute of Electronics, Chinese Academy of Sciences (中科院电子所)

2002

• Shujun Li and Xuan Zheng, "On the Security of an Image Encryption Method," in: Proceedings of the 2002 IEEE International Conference on Image Processing (ICIP 2002, Rochester, NY, USA, September 22-25, 2002), vol. 2 of 3, pp. 925-928, 2002 © IEEE Copyright Declaration
• Shujun Li and Xuan Zheng, "Cryptanalysis of a Chaotic Image Encryption Method," in: Proceedings of the 2002 IEEE International Symposium on Circuits and Systems (ISCAS 2002, Scottsdale, Arizona, May 26-29, 2002), vol. 2 of 5, pp. 708-711, 2002 © IEEE Copyright Declaration
• Shujun Li, Xuan Zheng, Xuanqin Mou and Yuanlong Cai, "Chaotic Encryption Scheme for Real-Time Digital Video," in: Real-Time Imaging VI (part of proceedings of IS&T/SPIE's 14th Annual Symposium on Electronic Imaging, San Jose, CA, USA, January 20-25, 2002), Proceedings of SPIE, vol. 4666, pp. 149-160, 2002 © SPIE - The International Society for Optical Engineering
  Note that the CVES system proposed in this paper is not sufficiently secure against chosen-plaintext attack. See Chapter 9 of Shujun Li's PhD thesis for an enhanced edition without this security flaw.

2001

1. Shujun Li, Xuanqin Mou and Yuanlong Cai, "Improving security of a chaotic encryption approach," Physics Letters A, vol. 290, no. 3-4, pp. 127-133, 2001 © Elsevier Science B. V.

• Shujun Li, Qi Li, Wenmin Li, Xuanqin Mou and Yuanlong Cai, "Statistical Properties of Digital Piecewise Linear Chaotic Maps and Their Roles in Cryptography and Pseudo-Random Coding," in: Cryptography and Coding: 8th IMA International Conference Cirencester, UK, December 17-19, 2001. Proceedings (IMA-C&C 2001), Lecture Notes in Computer Science, vol. 2260, pp. 205-221, 2001 © Springer-Verlag GmbH
• Shujun Li, Xuanqin Mou and Yuanlong Cai, "Pseudo-Random Bit Generator Based on Couple Chaotic Systems and Its Applications in Stream-Cipher Cryptography," in: Progress in Cryptology - INDOCRYPT 2001 : Second International Conference on Cryptology in India, Chennai, India, December 16-20, 2001. Proceedings, Lecture Notes in Computer Science, vol. 2247, pp. 316-329, 2001 © Springer-Verlag GmbH

Standardization Contributions

2010

• Shujun Li, "Defect Report on ISO/IEC 23001-4," ISO/IEC JTC1/SC29/WG11, MPEG2010/w11469, 93rd MPEG Meeting, Geneva, Switzerland, July 2010
• Shujun Li, "Process for Extending MPEG RVC VTL and Corresponding Verification Testing Procedures," ISO/IEC JTC1/SC29/WG11, MPEG2010/w11474, 93rd MPEG Meeting, Geneva, Switzerland, July 2010
• Hwa Seon Shin, Kazuo Sugimoto, Ihab Amer, Marco Mattavelli, Gwo Giun Lee and Shujun Li, "Description of Core Experiments in RVC," ISO/IEC JTC1/SC29/WG11, MPEG2010/w11473, 93rd MPEG Meeting, Geneva, Switzerland, July 2010

• Shujun Li, Marco Mattavelli, Mickaël Raulet, Matthieu Wipliez, Jörn W. Janneck, Johan Eker, Carl Von Platen, Ghislain Roquier, Beilu Shao, Christophe Lucarz and Pascal Faure, "Proposed corrections and new changes to ISO/IEC 23001-4:2009," ISO/IEC JTC1/SC29/WG11, MPEG2010/m17806, 93rd MPEG Meeting, Geneva, Switzerland, July 2010

2009

• Shujun Li, Junaid Jameel Ahmad, Ihab Amer and Marco Mattavelli, "Extending RVC for Wireless Multimedia Sensor Networks and Cryptography Applications," ISO/IEC JTC1/SC29/WG11, MPEG2009/m16989, 90th MPEG Meeting, Xi'an, China, October 2009

Magazine Article

2009

• Shujun Li, "Encryption-Friendly Multimedia Coding and Communications: Is it Necessary and Possible?" E-Letter of IEEE Communications Society's Technical Committee on Multimedia Communications, vol. 4, no. 1, pp. 15-18, February 2009

2004

• Ming Yang, Nikolaos Bourbakis and Shujun Li, "Data-Image-Video Encryption," IEEE Potentials, vol. 23, no. 3, pp. 28-34, August-September, 2004 © IEEE
  Note that the security evaluations listed in the tables of this article are about ciphertext-only attacks, i.e., about the brute-force attack of the secret key. Many image and video ciphers are actually insecure against known/chosen-plaintext attacks.

E-Prints

SecHCI

• Shujun Li and Heung-Yeung Shum, "Secure Human-Computer Identification against Peeping Attacks (SecHCI): A Survey," technical report, Jan. 2003 (an early version has been published online in Elesevier Science's Comuter Science Preprint Archive, vol. 2003, no. 1, pp. 5-57, 2003)
• Shujun Li and Heung-Yeung Shum, "Secure Human-Computer Identification (Interface) Systems against Peeping Attacks: SecHCI," IACR's Cryptology ePrint Archive: Report 2005/268, received on 12 Aug 2005 (an early version has been appeared online in Elesevier Science's Comuter Science Preprint Archive, vol. 2004, no. 3, pp. 21-69, 2004)

Multimedia Encryption

• Shujun Li, Guanrong Chen, Albert Cheung and Kwok-Tung Lo, "Cryptanalysis of an MPEG-video Encryption Scheme Based on Secret Huffman Tables," arXiv:cs/0509035, v2, last revised on 24 Oct 2007
• Shujun Li and Bharat Bhargava, "A Note on 'MPEG Video Encryption Algorithms'," a short note on the result given in the Appendix of [Multimedia Tools and Applications, 24: 57–79, 2004], August 2004

Cryptanalysis of Digital Chaotic Ciphers

• David Arroyo, Gonzalo Alvarez, Jose Maria Amigo and Shujun Li, "Cryptanalysis of a family of self-synchronizing chaotic stream ciphers," arXiv:0903.2928, submitted on 17 Mar 2009

Cryptanalysis of Chaos-Based Secure Communications

• A. Orue, G. Alvarez, G. Pastor, M. Romera, F. Montoya, Shujun Li, "A New Lorenz System Parameter Determination Method and Applications," arXiv:nlin/0606028, submitted on 11 Jun 2006
• Gonzalo Alvarez, Shujun Li, "Estimating short-time period to break different types of chaotic modulation based secure communications," arXiv:nlin/0406039, submitted on 18 Jun 2004

Chaos Theory

• Shujun Li, "When Chaos Meets Computers," arXiv:nlin/0405038, v3, last revised on 12 December 2005
• Gonzalo Álvarez, Shujun Li, Jinhu Lü and Guanrong Chen, "Inherent Frequency and Spatial Decomposition of the Lorenz Chaotic Attractor," arXiv:nlin/0406031, v2, last revised on 16 June 2004

Pure Mathematics

• Shujun Li, "Permutation Polynomials modulo m," arXiv:math.NT/0509523, v6, last revised on 1 December 2005
• Shujun Li, "Null Polynomials modulo m," arXiv:math.NT/0510217, v2, last revised on 14 November 2005
• Shujun Li, "Evaluating Determinants of Two Classes of Special Matrices," arXiv:math.NT/0509350, v4, last revised on 13 October 2005

Other Early Papers

• Shujun Li, Peng Wang, Xuanqin Mu and Yuanlong Cai, "Research on Non-Linear Dynamic Systems Employing Color Space," in: 2000 5th International Conference on Signal Processing Proceedings (WCC-ICSP 2000, 21-25 August, 2000, Beijing, China), vol. 1 of 3, pp. 285-289, 2000 © Publishing House of Electronics Industry (电子工业出版社) and IEEE

• Shujun Li, Zhen Ji, Xuanqin Mou and Yifeng Jiang, "The Implement of Remote Medical Treatment by Internet & RAS (利用Internet和RAS实现远程医疗)", Chinese Journal of Medical Instrumentation (《中国医疗器械杂志》), vol. 23, no. 1, pp. 19-23 & 33, 1999
• Yifeng Jiang, Zhen Ji, Xuanqin Mou and Shujun Li, "The Design and Implement of PACS (医用数字影像设备PACS组件的设计)", Chinese Journal of Medical Instrumentation (《中国医疗器械杂志》), vol. 23, no. 2, pp. 63-67, 1999
• Shujun Li, Zhen Ji, Xuanqin Mou and Yifeng Jiang, "The Design of RAS (Remote Access Service) Client on Windows Platform (Windows 远程访问服务(RAS)客户程序的设计)", Application Research of Computers (《计算机应用研究》), vol. 15, no. 2(J), pp. 178-180, 1998