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{{Short description|Indian computer scientist (born 1955)}}
{{notability|date=March 2021}}
{{Use dmy dates|date=May 2018}}
{{Use Indian English|date=May 2018}}
{{Infobox scientist
| name = Chandrasekharan Pandu Rangan
| image =
| birth_date = {{birth date and age|mf=yes|1955|9|20}}
| birth_place = [[Madras, Tamil Nadu]], India
| alma_mater = [[Indian Institute of Science]] <br /> [[University of Madras]]
| field = [[Computer science]]
| work_institution = [[Indian Institute of Technology Madras]]
| doctoral_advisor =
| doctoral_students =
| prizes =
| spouse =
| children = 2
| occupation = Professor and researcher
| education = B.Sc (M), M.Sc (EE), PhD (Applied Mathematics)
}}
'''Chandrasekaran Pandurangan''' (born September 20, 1955) is a computer scientist and academic professor of the Computer Science and Engineering Department <ref>Computer Science and Engineering Dept at IITM: www.cse.iitm.ac.in</ref> at [[Indian Institute of Technology Madras|Indian Institute of Technology - Madras]] (IITM).<ref>Indian Institute of Technology - Madras (IITM): www.iitm.ac.in</ref> He mainly focuses on the design of pragmatic algorithms, [[graph theory]] and [[cryptography]].<ref>[http://www.cse.iitm.ac.in/~rangan/bio/node6.html Pandu Rangan Areas of Interest]</ref>

==Early life==
Pandu Rangan was born on September 20, 1955 to S.R. Chandrasekharan in [[Madras]], India. He is married and has two children.<ref>[http://www.cse.iitm.ac.in/~rangan/bio/node1.html Pandu Rangan Personal data IIT Madras]</ref>

==Education==
Pandu Rangan completed his B.Sc. from [[University of Madras]] in 1975. After obtaining B.Sc, he received his M.Sc. from the same university in 1977. He completed his PhD from [[IISc]], [[Bangalore]] in 1984.<ref>[http://www.cse.iitm.ac.in/~rangan/ C. Pandu Rangan Profile IIT Madras]</ref>

==Research interests==
Pandu Rangan has published over two hundred research papers<ref name=listpub>List of Publication by Prof C. Pandu Rangan: http://dblp.uni-trier.de/pers/hd/r/Rangan:C=_Pandu</ref> in the following areas of computer science and engineering:
* Restricting the problem domain
* Approximate algorithm design
* Randomized algorithms
* Parallel and VLSI algorithms
* Applied cryptography
* Secure multi-part computation
* Game theory and
* [[Graph theory]]
Problems of practical interest in [[graph theory]], combinatorics and computational geometry were his main interests in research. In cryptology his current focus is on secure message transmission and provable security of cryptographic protocols / primitives.<ref>[https://www.cse.iitm.ac.in/profile.php?arg=Mw== C. Pandu Rangan profile at IITM]</ref>

==Awards and honours==
*In 2018, he won Institute Chair Professor at [[IIT Madras]].<ref>[https://www.cse.iitm.ac.in/awards_details.php?arg=NTc= Institute Chair Professor at IIT Madras]</ref>
*Fellow, [[Indian National Academy of Engineering]], (2006).
*Member of the Board of Directors of [[International Association for Cryptologic Research]] (IACR), (2002-2005).
*Member, Board of Directors, Society for Electronics Transaction and Security (SETS), (2005-2007).
*Member, Editorial Board, Lecture Notes in Computer Science Series (LNCS Series), Springer-Verlag, Germany, (2005-2008).<ref>{{cite web|title=Pandu Rangan Chandrasekharan Professor, IIT Madras|url=https://simons.berkeley.edu/people/pandu-rangan-chandrasekharan|publisher=University of California Berkeley}}</ref>
*Member, Editorial Board, Journal of Parallel and Distributed Computing, (2005-2008).<ref>[http://www.cse.iitm.ac.in/~rangan/bio/node3.html AWARDS AND HONOURS]</ref>

==Bibliography==
* K. Srinathan, M. V. N. Ashwin Kumar, C. Pandu Rangan: [[Asynchrony (game theory)|Asynchronous]] Secure Communication Tolerating Mixed Adversaries. Advances in Cryptology - ASIACRYPT 2002, 8th International Conference on the Theory and Application of Cryptology and Information Security, Queenstown, New Zealand, 1–5 December 2002: Pages 224-242
* K. Srinathan, Arvind Narayanan, C. Pandu Rangan: Optimal Perfectly Secure Message Transmission. Advances in Cryptology - CRYPTO 2004, 24th Annual International CryptologyConference, Santa Barbara, California, USA, 15–19 August 2004: Pages 545-561
* Kannan Srinathan, N. R. Prasad, C. Pandu Rangan: On the Optimal Communication Complexity of Multiphase Protocols for Perfect Communication. 2007 IEEE Symposium on Security and Privacy (S&P 2007), 20–23 May 2007, Oakland, California, USA, 2007: Pages 311-320
* Kannan Srinathan, Arpita Patra, Ashish Choudhary, C. Pandu Rangan: Probabilistic Perfectly Reliable and Secure Message Transmission - Possibility, Feasibility and Optimality. Progress in Cryptology - INDOCRYPT 2007, 8th International Conference on Cryptology in India, Chennai, India, 9–13 December 2007: Pages 101-122
* S. Sharmila Deva Selvi, S. Sree Vivek, Deepanshu Shukla, C. Pandu Rangan: Efficient and Provably Secure Certificateless Multi-receiver Signcryption. Provable Security, Second International Conference, ProvSec 2008, Shanghai, China, 30 October – 1 November 2008: Pages 52–67
* Bhavani Shankar, Prasant Gopal, Kannan Srinathan, C. Pandu Rangan: Unconditionally reliable message transmission in directed networks. Proceedings of the Nineteenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2008, San Francisco, California, USA, 20–22 January 2008. SIAM: Pages 1048-1055
* Arpita Patra, Ashish Choudhary, C. Pandu Rangan: Round Efficient Unconditionally Secure Multiparty Computation Protocol. Progress in Cryptology - INDOCRYPT 2008, 9th International Conference on Cryptology in India, Kharagpur, India, 14–17 December 2008: Pages 185-199
* S. Sharmila Deva Selvi, S. Sree Vivek, C. Pandu Rangan: Breaking and Fixing of an Identity Based Multi-Signcryption Scheme. Provable Security, Third International Conference, ProvSec 2009, Guangzhou, China, 11–13 November 2009: Pages 61–75
* S. Sharmila Deva Selvi, S. Sree Vivek, J. Shriram, S. Kalaivani, C. Pandu Rangan: Identity Based Aggregate Signcryption Schemes. Progress in Cryptology - INDOCRYPT 2009, 10th International Conference on Cryptology in India, New Delhi, India, 13–16 December 2009: Pages 378-397
* Arpita Patra, Ashish Choudhary, C. Pandu Rangan: Round Efficient Unconditionally Secure MPC and Multiparty Set Intersection with Optimal Resilience. Progress in Cryptology - INDOCRYPT 2009, 10th International Conference on Cryptology in India, New Delhi, India, 13–16 December 2009: Pages 398-417
* Arpita Patra, Ashish Choudhary, Tal Rabin, C. Pandu Rangan: The Round Complexity of Verifiable Secret Sharing Revisited. Advances in Cryptology - CRYPTO 2009, 29th Annual International Cryptology Conference, Santa Barbara, CA, USA, 16–20 August 2009: Pages 487-504
* Ranjit Kumaresan, Arpita Patra, C. Pandu Rangan: The Round Complexity of Verifiable Secret Sharing: The Statistical Case. Advances in Cryptology - ASIACRYPT 2010 - 16th International Conference on the Theory and Application of Cryptology and Information Security, Singapore, 5–9 December 2010: Pages 431-447
* S. Sharmila Deva Selvi, S. Sree Vivek, C. Pandu Rangan: Identity Based Public Verifiable Signcryption Scheme. Provable Security - 4th International Conference, ProvSec 2010, Malacca, Malaysia, 13–15 October 2010: Pages 244-260
* S. Sharmila Deva Selvi, S. Sree Vivek, Dhinakaran Vinayagamurthy, C. Pandu Rangan: ID Based Signcryption Scheme in Standard Model. Provable Security - 6th International Conference, ProvSec 2012, Chengdu, China, 26–28 September 2012: Pages 35–52
* S. Sree Vivek, S. Sharmila Deva Selvi, Layamrudhaa Renganathan Venkatesan, C. Pandu Rangan: Efficient, Pairing-Free, Authenticated Identity Based Key Agreement in a Single Round. Provable Security - 7th International Conference, ProvSec 2013, Melaka, Malaysia, 23–25 October 2013: Pages 38–58
* Arpita Patra, Ashish Choudhury, C. Pandu Rangan: Efficient Asynchronous Verifiable Secret Sharing and Multiparty Computation. Journal of Cryptology Volume 28, Number 1, January 2015: Pages 49–109 (2015)
* Priyanka Bose, Dipanjan Das, Chandrasekaran Pandu Rangan: Constant Size Ring Signature Without Random Oracle. Information Security and Privacy - 20th Australasian Conference, ACISP 2015, Brisbane, QLD, Australia, 29 June – 1 July 2015: Pages 230-247
* Suvradip Chakraborty, Goutam Paul, C. Pandu Rangan: Forward-Secure Authenticated Symmetric Key Exchange Protocol: New Security Model and Secure Construction. Provable Security - 9th International Conference, ProvSec 2015, Kanazawa, Japan, 24–26 November 2015: Pages 149-166
* Sree Vivek Sivanandam, S. Sharmila Deva Selvi, Akshayaram Srinivasan, Chandrasekaran Pandu Rangan: Stronger public key encryption system withstanding RAM scraper like attacks. Security and Communication Networks Volume 9, Number 12, January 2016: Pages 1650-1662
* Kunwar Singh, C. Pandu Rangan, A. K. Banerjee: Lattice-based identity-based resplittable threshold public key encryption scheme. International Journal of Computer Mathematics, Volume 93, Number 2, 2016: Pages 289-307
* K. Srinathan, C. Pandu Rangan, Moti Yung: Progress in Cryptology - INDOCRYPT 2007, 8th International Conference on Cryptology in India, Chennai, India, 9–13 December 2007, Proceedings. Lecture Notes in Computer Science 4859, Springer 2007, {{ISBN|978-3-540-77025-1}}.
* C. Pandu Rangan, Cunsheng Ding: Progress in Cryptology - INDOCRYPT 2001, Second International Conference on Cryptology in India, Chennai, India, 16–20 December 2001, Proceedings. Lecture Notes in Computer Science 2247, Springer 2001, {{ISBN|3-540-43010-5}}.
* C. Pandu Rangan, Venkatesh Raman, Ramaswamy Ramanujam: Foundations of Software Technology and Theoretical Computer Science, 19th Conference, Chennai, India, 13–15 December 1999, Proceedings. Lecture Notes in Computer Science 1738, Springer 1999, {{ISBN|3-540-66836-5}}.
* Alok Aggarwal, C. Pandu Rangan: Algorithms and Computation, 10th International Symposium, ISAAC '99, Chennai, India, 16–18 December 1999, Proceedings. Lecture Notes in Computer Science 1741, Springer 1999, {{ISBN|3-540-66916-7}}.<ref name=listpub />

== References ==
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[[Category:Living people]]
[[Category:Indian academics]]
[[Category:IIT Madras faculty]]
[[Category:1955 births]]

C. Pandu Rangan - Revision history

>Bbb23 at 13:08, 3 June 2021