Konnichiwa!
Japanese — Hello

I am a cryptography researcher working on the analysis and security of symmetric-key primitives. I am learning about automated tools like SAT solvers, MILP, and SMT solvers to find weaknesses in ciphers, alongside exploring quantum computing applications in cryptanalysis.

What I Do

My current and past work, from the lab to the whiteboard to the laptop.

Research Fellow Current position
School of Physical and Mathematical Sciences, NTU Singapore
Jan' 2025 - Present

Working with Prof. Thomas Peyrin on symmetric-key cryptanalysis and automated cryptanalysis tools at SYmmetric cryptography and machine Learning Lab (SyLLab).

Post-doctoral Researcher
Department of Computer Science & Engineering, IIT Madras
Oct' 2024 - Dec' 2024

Post-doctoral researcher under Prof. Santanu Sarkar focusing on cryptanalysis of stream ciphers.

What I Search

My curiosity goes to here when nobody is watching

My research focuses on the security analysis of symmetric-key cryptographic primitives, particularly stream ciphers and block ciphers. I am learning to develop and apply automated techniques and tools to discover vulnerabilities and improve cryptanalytic methods.

Research Topics

Cryptanalysis Symmetric-key Ciphers SAT/MILP/SMT Solvers Quantum Cryptanalysis

Some Selected Publications

For the complete publication record:

View Full List on DBLP

Talks

  • Cryptanalysis of Reduced Round ChaCha - New Attack & Deeper Analysis
    FSE 2023 · Video link [slides]

Visits

What I Taught

TA experience during PhD

During my PhD, I served as a teaching assistant for the following courses.

Course Course IC Period Feedback
(out of 10)
Probability and Statistics
(MATHF113 - T9)		 Prof. Sabyasachi Dey Spring 2021 9.7
Mathematics I (Advanced Calculus)(MATHF111 - T8) -- Fall 2021 Feedback not
collected
Probability and Statistics
(MATHF113 - TI)		 Prof. Sabyasachi Dey Spring 2022 7.92
Discrete Mathematics
(MATHF213 - T2)		 Prof. A Michael Alphonse Fall 2022 8.63
Graphs and Networks
(MATHF243 - TI)		 Prof. A Michael Alphonse Spring 2023 9.32
Introduction to Topology
(MATHF311 - T2)		 Prof. Sharan Gopal Fall 2023 9.69
Differential Geometry
(MATHF342 - T1)		 Prof. Sumit Kumar Vishwakarma Spring 2024 8.41

What I've Learnt

All Academic Bloopers

PhD in Mathematics
BITS Pilani, Hyderabad Campus, India
Class of 2024 · Advisor: Prof. Sabyasachi Dey
Thesis: Study on Cryptanalysis of ARX-based Ciphers
B.Ed with method subject Mathematics
Moulana Abul Kalam Ajad Teachers' Training Institute, India
Class of 2020
MS in Mathematics
Visva-Bharati University, India
Class of 2018
BS in Mathematics
Bolpur College, India
Class of 2016
Higher Secondary School Examination, Grade 12
West Bengal Council of Higher Secondary Education, India
Class of 2013
Secondary School Examination, Grade 10
West Bengal Board of Secondary Education, India
Class of 2011

What I've Found

Books, playlists, notes, and articles I found useful

A small set of references that guide how I try to learn and work in cryptography. Sometimes I update this list along the way as I read and build.

Books I Liked