Room 413B Agastya Building IIT Bhilai, Durg Chhattisgarh 491002

Dhiman Saha

Assistant Professor, Computer Science and Engineering, IIT Bhilai.
Adjunct Faculty, Bharati School of Telecomm., IIT Delhi

Hello Universe!

Learn · Teach · Research

I’m Dhiman Saha. I love computer science and crypto. I mostly work in symmetric crypto particularly cryptanlaysis.

Recently I am focusing on :

  • Automated Cryptanalysis
  • Classical and Quantum Symmetric-Key Cryptanalysis
  • Lightweight Cryptography
  • Lattice Based Cryptography

My research group calls itself the de.ci.phe.red LAB.

Research Highlight

news

Nov 29, 2025 My research group is organizing the National Workshop on Cryptology 2025 from 7-9 December and a first of its kind Crypto Winter School 2025 from 9-12 December. Details are available at NWC and CWS respectively.
Jun 18, 2025 Our paper titled Cryptanalysis of NLFSR-Based Lightweight Ciphers TinyJAMBU, KATAN, and KTANTAN has been accepted/published in IEEE Transactions on Information Theory. This is a joint work with Amit Jana (ISI Kolkata) and Mostafizar Rahman (University of Hyogo). Read more
Jun 1, 2025 Our paper titled ToFA: Towards Fault Analysis of GIFT and GIFT-like Ciphers Leveraging Truncated Impossible Differentials has been accepted/published in TCHES 2025. This is a joint work with Anup Kumar Kundu (ISI Kolkata), Shibam Ghosh (University of Haifa/Inria), and Aikata Aikata (TU Graz). Read more
Sep 13, 2024 Our paper titled Simple vs. vectorial: exploiting structural symmetry to beat the ZeroSum distinguisher has been accepted/published in Designs, Codes and Cryptography. This is a joint work with Sahiba Suryawanshi (IIT Bhilai), Shibam Ghosh (University of Haifa), and Prathamesh Ram (IIT Bhilai). Read more
Aug 25, 2024 Our paper on Multiple-Tweak Differential Attack Against SCARF got accepted at ASIACRYPT 2024. This is a joint work with Christina (Université Paris Cité), Shahram (Ruhr University Bochum) and Yosuke (NTT Social Informatics Laboratories). Web

selected publications

  1. ACNS
    TIDAL: Practical Collisions on State-Reduced Keccak Variants
    Suryawanshi, Sahiba, Saha, Dhiman, and Jaiswal, Shashwat
    In Applied Cryptography and Network Security - 21st International Conference, ACNS 2023, Kyoto, Japan, June 19-22, 2023, Proceedings 2023
    Bibtex
  2. JCEN
    Sycon: A New Milestone in Designing ASCON-like Permutations
    Mandal, Kalikinkar, Saha, Dhiman, Sarkar, Sumanta, and Todo, Yosuke
    Journal of Cryptographic Engineering 2021
    Bibtex URL
  3. ToSC
    Boomeyong: Embedding Yoyo within Boomerang and its Applications to Key Recovery Attacks on AES and Pholkos
    Rahman, Mostafizar, Saha, Dhiman, and Paul, Goutam
    IACR Trans. Symmetric Cryptol. 2021
    Bibtex
  4. ePrint
    A Diagonal Fault Attack on the Advanced Encryption Standard
    Saha, Dhiman, Mukhopadhyay, Debdeep, and Chowdhury, Dipanwita Roy
    IACR Cryptol. ePrint Arch. 2009
    Bibtex URL