About Me
I am a post-doctoral Research Fellow at SyLLab under the mentorship of Professor Thomas Peyrin, in the School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University, Singapore. I did my PhD in “Design and Analysis of Lightweight Cryptographic modes” from Indian Statistical Institute, Kolkata under the supervision of professor Mridul Nandi. My research interest includes but is not restricted to:
- Designing Symmetric-Key Primitives
- Provable security Analysis of existing Symmetric-key protocols
- Theoretical Cryptanalysis.
- Algorithmic Cryptanalysis.
Experience
Research Fellow
September, 2023 - Present
I am currently working as a post-doctoral research fellow in the School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University, Singapore
Research Scientist
July, 2023 - September, 2023
I worked as a Research Scientist at R. C. Bose Centre for Cryptology and Security, Indian Statistical Institute, Kolkata
Education
Indian Statistical Institute, Kolkata
July, 2016 - April, 2023
Here I received my Ph.D. in Theoretical Computer Science (Cryptography)
Indian Statistical Institute, Kolkata
July, 2013 - May, 2016
Here I received my Master’s degree in Mathematics (M.MATH)
National Institute of Technology, Durgapur
August, 2009 - May, 2013
Here I received my Bachelor’s degree in Electrical Engineering (B.Tech)
Cryptographic Designs
Publications
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R. Bhaumik, B. Chakraborty, W. Choi, A. Dutta, J. Govinden, Y. Shen, “The Committing Security of MACs with Applications to Generic Composition”, in Advances in Cryptology- CRYPTO 2024.
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B. Chakraborty, C. Dhar, M. Nandi, “Tight Multi-user Security of Ascon and Its Large Key Extension” in Information Security and Privacy - ACISP 2024
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B. Chakraborty, N. Datta, M. Nandi, “Designing Full-Rate Sponge based AEAD modes” in Advances in Cryptology - INDOCRYPT 2023
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B. Chakraborty, C. Dhar, M. Nandi, “Exact Security Analysis of ASCON” in Advances in Cryptology - ASIACRYPT 2023
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B. Chakraborty, M. Nandi, “The mF Mode of Authenticated Encryption with Associated Data” in Journal of Mathematical Cryptology - JMC 2022
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B. Chakraborty, S. Chattopadhyay, A. Jha, M. Nandi, “On length independent security bounds for the PMAC family” in IACR Transactions on Symmetric Cryptology ToSC 2021-2 / Fast Software Encryption - FSE 2022
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B. Chakraborty, A. Jha, M. Nandi, “On the Security of Sponge-type Authenticated Encryption Modes” in IACR Transactions on Symmetric Cryptology ToSC 2020-2 / Fast Software Encryption - FSE 2021
A Little More About Me
When I am not doing research, I like to Identify myself as a social-rights worker. I have extensively worked on advocating social rights in different parts of India. I am the treasurer of Solidarity Schools Trust which promotes education and right-to-education in the Greater Kolkata Area. I also play amateur football as a goalkeeper and have represented the football teams of all the institutions I have been affiliated with until Now. I am a Liverpool Football Club fan and have been an official international member of the club since 2017.