Room 413B Agastya Building IIT Bhilai, Durg Chhattisgarh 491002

Dhiman Saha

Associate 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

Sep 24, 2026 Our new work titled Default Correct: A New Fault Surface in the Comparison Booleanisation of Kyber-KEM is now up on the IACR ePrint Archive (2026/2069). We show that a single, precisely-timed clock glitch can make ML-KEM (Kyber) — the NIST-standardized post-quantum encryption scheme — accept any ciphertext, bypassing the state-of-the-art countermeasure and recovering full secret keys on real hardware. This is a joint work with Anirudh Jaiswal and Abhilash Kumar Das, carried out entirely within the de.ci.phe.red Lab, using the lab’s recently constituted fault injection analysis setup, funded by the National Quantum Mission. Follow the blog for a simplified explainer of the work.
Aug 31, 2026 Our paper titled Differential Fault Analysis of the FUTURE has been accepted for presentation at VCRIS 2026, to be held in Hanoi this October, and will appear in the proceedings indexed by IEEE. This is a joint work with Dilip Sau (IIT Kharagpur) and Dipanwita Roy Chowdhury (IIT Kharagpur).
Aug 11, 2026 Our paper titled Impossible Differential Attack on Mysterion has been accepted for presentation at CANS 2026 (International Conference on Cryptology and Network Security), to be held in Wollongong this November. This is a joint work with Dilip Sau (IIT Kharagpur), Dipanwita Roy Chowdhury (IIT Kharagpur), and Shibam Ghosh (IIT Hyderabad).
Jun 24, 2026 I will be speaking at the Workshop on Quantum Technologies and FinteQ Demonstration at C-DAC Pune on 25 June 2026, in my capacity as Project Investigator. The workshop and demonstration will be attended by officials from RBI and MeitY along with several banking institutions.
Jun 15, 2026 I delivered a talk in the Advanced Crypto Track at the ACM India Summer School on Symmetric Key Cryptography. The talk was entitled When Differentials Fail - Boomerang Attacks - in four acts.

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