Dr. Avijit Dutta

Postdoctoral Fellow

I am a post-doctoral researcher at IAI, TCG CREST. I work in the area of symmetric key cryptography with a special focus on provable security since 2014. My present research interests primarily includes the design and analysis of symmetric cryptographic schemes. I also work in designing symmetric searchable encryption schemes. I am also interested in cryptanalysis of symmetric key ciphers, blockchains and lattice based cryptography.

Education: I have completed my doctoral degree in Computer Science and Engineering from Indian Statistical Institute, Kolkata in April 2020. Prior to that, I completed my graduation and post-graduation in Computer Science and Engineering from West Bengal University of Technology and Jadavpur University in 2011 and 2014 respectively. I have also spent a year (2011-2012) in Cognizant Technology Solutions India Pvt Ltd as a software engineer. During the doctoral tenure, I spent two and a half months in NTT Lab, Japan. I spent four months (Aug, 2019-Dec, 2019) in DAIICT, Gandhinagar as an assistant professor. I was also a visiting scientist in the Department of Computer Science and Engineering, IIT Kharagpur from April, 2020 – August, 2020.

Courses: Here is a list of courses that I have offered.

  • Formal Languages and Automata Theory (First Year Research Scholars, IAI, TCG CREST) 2021-22
  • Topics in Symmetric Key Cryptology – Advanced (First Year Research Scholars, IAI, TCG CREST) 2021-22 with Dr. Nilanjan Datta
  • Blockchain and Cryptocurrencies (Second Year M.Tech CrS, ISI Kolkata) 2021-2022 with Ms. Subhra Majumder
  • Design and Analysis of Algorithms (First Year Research Scholars, IAI, TCG CREST) 2020-21 with Prof. Rana Barua
  • Advanced Cryptology (First Year Research Scholars, IAI, TCG CREST) 2020-21 with Dr. Nilanjan Datta
  • Discrete Mathematics (First Year Research Scholars, IAI, TCG CREST) 2020-21 with Dr. Nilanjan Datta
  • An Introduction to Linear Algebra (First Year B.Tech Students, DAIICT) 2019-20 with Prof. Jaideep Mulherkar.
  • An Introduction to Basic Cryptography (First Year M.Tech CrS, ISI Kolkata) 2019-20 with Prof. Rana Barua
  • Advanced Cryptology (Second Year M.Tech CS, ISI Kolkata) 2017-18 with Dr. Goutam Paul

Currently, I am conducting a reading course on “Lattice Based Cryptography” at IAI, TCG-CREST. I also conduct a Weekly Seminar Meeting, “Meet-in-the-Middle” at IAI, TCG-CREST with Dr. Kausik Sengupta

Publications: This is a list of important publications. Please refer to my DBLP for the full list of publications.

  • Nilanjan Datta, Avijit Dutta, Kushankur Dutta: Improved Security Bound of (E/D)WCDM. IACR Trans. Symmetric Cryptol. 2021(4): 138-176 (2021)
  • Avijit Dutta, Mridul Nandi, Suprita Talnikar: Permutation Based EDM: An Inverse Free BBB Secure PRF. IACR Trans. Symmetric Cryptol. 2021(2): 31-70 (2021)
  • Avijit Dutta: Minimizing the Two-Round Tweakable Even-Mansour Cipher. ASIACRYPT (1) 2020: 601-629
  • Debrup Chakraborty, Avijit Dutta, Samir Kundu: Designing Tweakable Enciphering Schemes Using Public Permutations. Advances in Mathematics of Communications.
  • Donghoon Chang, Nilanjan Datta, Avijit Dutta, Bart Mennink, Mridul Nandi, Somitra Sanadhya: Release of Unverified Plaintext: Tight Unified Model and Application to ANYDAE. IACR Trans. Symmetric Cryptol. 2019(4): 119-146 (2019)
  • Avijit Dutta, Mridul Nandi, Suprita Talnikar: Beyond Birthday Bound Secure MAC in Faulty Nonce Model. EUROCRYPT (1) 2019: 437-466
  • Nilanjan Datta, Avijit Dutta, Mridul Nandi, Goutam Paul: Double-block Hash-then-Sum: A Paradigm for Constructing BBB Secure PRF. IACR Trans. Symmetric Cryptol. 2018(3): 36-92 (2018)
  • Nilanjan Datta, Avijit Dutta, Mridul Nandi, Kan Yasuda: Encrypt or Decrypt? To Make a Single-Key Beyond Birthday Secure Nonce-Based MAC. CRYPTO (1) 2018: 631-661
  • Ritam Bhaumik, Nilanjan Datta, Avijit Dutta, Nicky Mouha, Mridul Nandi: The Iterated Random Function Problem. ASIACRYPT (2) 2017: 667-697
  • Avijit Dutta, Ashwin Jha, Mridul Nandi: Tight Security Analysis of EHtM MAC. IACR Trans. Symmetric Cryptol. 2017(3): 130-150 (2017)
  • Nilanjan Datta, Avijit Dutta, Mridul Nandi, Goutam Paul, Liting Zhang: Single Key Variant of PMAC_Plus. IACR Trans. Symmetric Cryptol. 2017(4): 268-305 (2017)
  • Avijit Dutta, Ashwin Jha, Mridul Nandi: A New Look at Counters: Don’t Run Like Marathon in a Hundred Meter Race. IEEE Trans. Computers 66(11): 1851-1864 (2017)

Contact: avijit.dutta@tcgcrest.org (e-mail) / 70035 59134 (mobile)