Staff Profile

Dr TAN, Chik How, Principal Research Scientist, email:

Born in Singapore in 1959. Received the BSc. Degree in Mathematics and BSc (Honor) degree in Mathematics in 1983 and 1984 respectively, from the National University of Singapore, Singapore, and the M.A. and Ph.D. degrees in Mathematics in 1990 and 1992 respectively, from the University of Wisconsin, Madison, U.S.A.

Dr Tan joined the DSO National Laboratories in 1984. He then joined the School of Electrical & Electronics Engineering, Nanyang Technological University, Singapore in 2000 as an assistant professor and then be an associate professor in 2004.  He was concurrently a Director of the Centre for Information Security at NTU from 2003 to 2005. He was also a security consultant to DigiSafe Pte Ltd, Singapore from 2001 to 2005. From 2005 to 2008, Dr Tan was a Professor in Information Security, Department of Computer Science and Media Technology, GjÆvik University College, Norway.  He joined Temasek Laboratories as a principal research scientist in 2009.

Research Activities and Interests
Cryptology, information security, wireless communication security and security engineering

1988 : Defence Technology Training Award (DTTA), Ministry of Defence, Singapore, for PhD study in USA
1994 : DSO Excellence Project Award

Selected Publications
Q. Wang, C. H. Tan and P. Stanica, “Concatenation of Hidden Weight Bit Function and Their Cryptographic Properties”, Advance in Mathematics of Communications, vol.8, No.2, pp.153-165, May, (2014).

Q Wang, C. Carlet, P. Stanica and C. H. Tan, “Cryptographic Properties of the Hidden Weighted Bit Function”, Discrete Applied Mathematics, vol. 174, pp.1-10, 10 Sep, (2014).

D. P. Le and C. H. Tan, “Improved Miller’s Algorithm for Computing Pairings on Edwards Curves”, IEEE Transactions on Computers, vol. 63, no. 10, pp. 2626-2632, (2014).

L. Qu, Y. Tan, C. H. Tan and C. Li, “Constructing Differentially 4-Uniform Permutations over F_{2^{2k}} via Switching Method”, IEEE Transactions on Information Theory, vol. 59, no. 7, pp. 4675-4686, (2013).

Y. Tan, L. Qu, S. Ling and C. H. Tan, “On the Fourier Spectrum of New APN Functions”, SIAM J. Discrete Mathematics (SIDMA), vol. 27, no. 2, pp.791-801, (2013).

H. H. Chan, E. Konstantinou, A. Kontogeogis and C. H. Tan, “What is Your ‘Birthday Curve’?”, Finite Fields and Their Applications, vol.18, no.6, 1232-1241, (2012).

G. Yang and C. H. Tan, “Certificateless Cryptography With KGC Trust Level 3”, Theoretical Computer Science, Vol. 412 (39), pp. 5446-5457, (2011).

C. H. Tan and G. Yang, “Comment on ‘Provably Secure Constant Round Contributory Group Key Agreement in Dynamic Setting’ ”, IEEE Transactions on Information Theory, Vol. 56, no.11, Nov, pp.5887-5888, (2010).

C. H. Tan, “Secure Public-key Encryption Scheme Without Random Oracles”, Information Science, Vol. 178, pp. 3435-3442, (2008). 

C. H. Tan, “Forgery of Provable Secure Short Signcryption Scheme”, IEICE Trans. on Fundamentals, Vol.  E90-A, no. 9, pp. 1879-1880, Sep, (2007).

C. M. Teo Joseph and C. H. Tan, “Authenticated Dynamic Group Key Agreement for Autoconfigurable Mobile Ad Hoc Networks”, IEICE Trans. on Communications, Vol E89-B, no.9, pp.2480-2492, Sep, (2006).

C. H. Tan, “Analysis of Improved Signcryption Scheme with Key Privacy”, Information Processing Letter, Vol 99, issue 4, pp.135-138, Aug, (2006).

C. H. Tan, “Signature scheme in multi-user setting”, IEICE Trans. on Fundamentals, Vol E89-A, no.5, pp.1339-1345, May, (2006).

C. H. Tan, "Key Substitution Attacks on Some Provably Secure Signature Schemes”, IEICE Trans. on Fundamentals, Vol E87-A, no.1, pp. 226-227, Jan, (2004).

X. Yi, C. K. Siew, C. H. Tan and Y. Ye “A Secure Conference Scheme For Mobile Communications”, IEEE Trans. on Wireless Communications, Vol. 2, no.6, pp. 1168-1177, Nov, (2003).