Bimal Roy

Tel: 91 33 2575 2809
Email: bimal [at] isical [dot] ac [dot] in

My primary research interest involves all aspects of Statistics. Currently I am working on Combinatorics, Application of Statistics in Cryptology and Design of Experiments. For more details refer to my CV .

Professional Activity
Students
Teaching
Publications
Sponsored Projects
Awards and Honours                                                                                           

Associate Editor, Journal of Ad Hoc & Sensor Wireless Networks.

Associate Editor, Journal of Wireless Sensor Networks.

Member, UNESCO Technical Advisory Committee for Asia-Pacific region.

Member, Program advisory committee for mathematical sciences of the Department of Science and Technology (DST), India.

Member, Technical Advisory committee for surveys, Reserve Bank of India.

Member, Board for Security and Assurance, National Association of Software and Service Companies (NASSCOM)

Founder-Secretary, Cryptology Research Society of India

General-Chair, Indocrypt 2010.

Past activity

Rishiraj Bhattacharyya

Srimanta Bhattacharyya

Samiran Bag

Sushmita Ruj (Graduated 2009)

Dibyendu Chakrabarti (Graduated 2008)

Mridul Nandi (Graduated 2005)

Avishek Adhikari (Graduated 2004)

Soumen Maiti

Subhamoy Maitra (Graduated 1999)

Tridib Dutta

Dipankar Basu (Co-superviser, Graduated 1991 from Jadavpur University)

I have taught more than Fifty full courses in Indian and US universities.

Journal Publications

Sushmita Ruj and Bimal Roy. Key Predistribution Using Combinatorial Designs for Grid-group Deployment Scheme in Wireless Sensor Networks. , ACM Transaction on Sensor Networks, Volume 6, Number 1, 2009.

Sushmita Ruj and Bimal Roy. Revisiting Key Predistribution using Transversal Designs for a Grid-based Deployment Scheme: International Journal of Distributed Sensor Networks. Volume 5, Number 6, pp 660-674, 2009.

Sushmita Ruj and Bimal Roy. Key Predistribution using Partially Balanced Designs in Wireless Sensor Networks: International Journal of High Performance Computing and Networking (IJHPCN), 2009 (To appear).

Sushmita Ruj and Bimal Roy. Key Distribution Schemes Using Combinatorial Designs To Identify All Traitors. Congressus Numerantium, Volume 193, pp 195-214, 2008.

Sushmita Ruj, Subhamoy Maitra and Bimal Roy. Key Predistribution using Transversal Design on a Grid of Wireless Sensor Network: Ad Hoc & Sensor Wireless Networks. Volume 5, Number 3-4, pp 247-264, 2008.

Avishek Adhikari Mausumi Bose, Dewesh Kumar and Bimal K. Roy. Applications of Partially Balanced Incomplete Block Designs in Developing $(2,n)$ Visual Cryptographic Schemes. IEICE TRANS. FUNDAMENTALS. Vol. E90-A, No. 5, May 2007.

Dibyendu Chakrabarti, Subhamoy Maitra, Bimal K. Roy. A key pre-distribution scheme for wireless sensor networks: merging blocks in combinatorial design. International Journal of Information Security, 5(2): 105-114 (2006).

M. Amir Hossain, Mrinal Kumar Sengupta, Sad Ahamed, Mohammad Mahmudur Rahman, Debapriya Mondal, Dilip Lodh, Bhaskar Das, Bishwajit Nayak, Bimal K. Roy, Amitava Mukherjee, and Dipankar Chakraborti. Ineffectiveness and Poor Reliability of Arsenic Removal Plants in West Bengal, India. Environmental Science & Technology, 2005, 39,4300-4306. Highlighted in News Section of Nature Magazine: Arsenic - free water still a Pipe dream. NATURE, Vol. 436, page 313, 21st July 2005.

Dibyendu Chakrabarti, Subhamoy Maitra, Bimal K. Roy: Clique Size in Sensor Networks with Key Pre-distribution Based on Transversal Design. International Journal of Distributed Sensor Networks, Volume 1, No. 3-4, Pages 345--354, 2005.

Bimal K. Roy and Sarbani Palit. Some statistical attacks on stream cipher cryptosystems. Journal of Indian Statistical Association, 42 (2004), no. 1, 1--34.

Soumen Maity, Amiya Nayak, Bimal K. Roy: Characterization of catastrophic faults in two-dimensional reconfigurable systolic arrays with unidirectional links. Information Processing Letters, 92(4): 189-197 (2004).

Soumen Maity, Amiya Nayak, Bimal K. Roy: On characterization of catastrophic faults in two-dimensional VLSI arrays. Integration, 38(2): 267-281 (2004).

Bimal Roy and Sourav Mukhopadhyay. Statistical Cryptanalysis on Block Cipher. Journal of the Indian Society for Probability and Statistics, Vol. 7, 2003.

Soumen Maity, Bimal K. Roy, Amiya Nayak: On enumeration of catastrophic fault patterns. Information Processing Letters, 81(4): 209-212 (2002).

Tridib K. Dutta and Bimal K. Roy. Construction of some repeated measurements designs, Journal of Statistical Planning and Inference, 95 (2001) pp. 283--291.

Soumen Maity, Tridib K. Dutta, Bimal K. Roy. Construction and efficiency of some repeated measurements designs. Journal of the Indian Statistical Association, 39 (2001), no. 2, 137--160.

Soumen Maity, Bimal K. Roy, Amiya Nayak: Enumerating catastrophic fault patterns in VLSI arrays with both uni- and bidirectional links. Integration, 30(2): 157-168 (2001).

Soumen Maity, Bimal K. Roy. Construction of some classes of optimal repeated measurements designs. Calcutta Statistical Association Bulletin, 50 (2000), no. 197-198, 33--42.

Subhamoy Maitra, Bimal K. Roy and Palash Sarkar. Ciphertext only attack on LFSR based encryption scheme. Calcutta Statistical Association Bulletin, 49 (1999), no. 195-196, 239--254.

Dipankar Basu, Kumar K. Mahalanabis and Bimal Roy. Application of least squares method in matrix form: simultaneous determination of ibuprofen and paracetamol in tablets. Journal of Pharmaceutical and Biomedical Analysis, Volume 16, Issue 5, January 1998, Pages 809-812.

Tridib K. Dutta and Bimal K. Roy. Construction of symmetric balanced squares, Ars Combinatoria, Vol. 47 (1997) pp. 49-64.

Palash Sarkar, Bimal K. Roy, Pabitra Pal Choudhury. Polynomial division using left shift register Computers & Mathematics with Applications, 35 (6): 27-31 MAR 1998.

Palash Sarkar and Bimal K. Roy. Construction of nearly balanced uniform repeated measurement designs. Calcutta Statistical Association Bulletin, 45 (1995), no. 179-180, 235--243.

Indranil Ojha and Bimal K. Roy. Opsearch, Vol.31, no.4, 1994, pp 279--295.

Tridib K. Dutta, Bimal K. Roy. Construction of strongly balanced uniform repeated measurements designs: a new approach, Sankhya, 54, pp 147--153, 1992.

Dipankar Basu Kumar K. Mahalanabis and Bimal Roy. Simultaneous spectrophotometric determination of metronidazole and furazolidone with multi standard addition and a least-squares method, Analytica Chimica Acta, Volume 249, Issue 2, 1991, Pages 349-352.

Anup K. De and Bimal K. Roy. Computer construction of some group divisible designs. Sankhya, Series-B, Volume: 52, Part: 1, Page No.: 82--92 Year: 1990.

Kumar K. Mahalanabis, Dipankar Basu, Bimal Roy. Application of the least-squares method in the matrix form: simultaneous spectrophotometric determination of rifampicin and isoniazid in binary pharmaceutical formulations. Analyst, 1989, (10), 1311-1314.

Bimal K. Roy. Construction of strongly balanced uniform repeated measurements designs, Journal of Statistical Planning and Inference, 19 (3): 341-348, JUL 1988.

J. D. Horton, B. K. Roy, P. J. Schellenberg, and D. R. Stinson. On decomposing graphs into isomorphic uniform 2-factors. Annals of Discrete Mathematics, 27 (1985), 297-320.

Bimal K. Roy, Kirti R. Shah. On the optimality of a class of minimal covering designs, Journal of Statistical Planning and Inference, 10 (2): 189-194, 1984.

Ron C. Mullin, Bimal K. Roy, Paul J. Schellenberg. Isomorphic subgraphs having minimal intersections, Journal of the Australian Mathematical Society, Series A-Pure Mathematics and Statistics, 35 (DEC): 287-306 1983.

Bimal K. Roy. Construction of (M,S)-optimal design for block size 3, Journal of Statistical Planning and Inference, Volume 7, Issue 1, October 1982, Pages 35-37.

Strategic Japanese-Indian Co-operative Programme on {``Multidisciplinary Research Field which combines Information and Communications Technology with Other Fields", 2009-2012.

Evaluation of a stream cipher designed by KDDI, Tokyo, Japan, 2006--2007.

Research and development of cryptographic primitives, funded by Department of Information Technology, 2006-2011.

Development of pairing based cryptographic protocols, funded by Department of Information Technology, 2003--2006.

Cryptanalysis of Complex LFSR based stream ciphers, funded by Scientific Analysis Group of the Defence Research and Development Organization, 2000-2002.

Cryptanalysis of LFSR based stream ciphers, funded by Defence Research and Development Organization, 1998--2000.

Construction of Boolean functions with cryptographic properties, funded by CAIR, Defence Research and Development Organization, 2000-2001.

Study of connection polynomials over $GF(2)$, funded by CAIR, Defence Research and Development Organization, 2001-2002.

Study of connection polynomials over $GF(2^k)$, funded by CAIR, Defence Research and Development Organization, 2005-2006.

Development of indigenous stream cipher for Indian Navy, funded by WESEE, Indian Navy, 2001-2002.

Development of visual cryptographic schemes, funded by WESEE, Indian Navy, 2005-2006.

Construction of UOWHF, funded by WESEE, Indian Navy, 2005-2006.

Development of visual cryptographic schemes, funded by ADRIN, Indian Space Research Organization, 2002-2004.

Design of new stream cipher, funded by SHOGHI.

Design of self-synchronizing stream cipher, funded by Sutech,

National Academy of Science, India -- Reliance Platinum Jubilee Award for innovation in Physical Sciences, 2007.

IBM Faculty Award 2007 for research, teaching and initiative in Cryptology and Security.