Research
Square Attacks on Format-Preserving Encryption Schemes: FEA-1 and FEA-2
Amit Kumar Chauhan, Abhishek Kumar and Somitra Sanadhya
SSS 2023
Implementing Grover Oracle for Lightweight Block Ciphers under Depth Constraints
Subodh Bijwe, Amit Kumar Chauhan and Somitra Sanadhya
ACISP 2022
Quantum Free-start Collision Attacks on Double Block Length Hash Functions
Amit Kumar Chauhan, Abhishek Kumar and Somitra Sanadhya
IACR Transactions on Symmetric Cryptology (ToSC) 2021
PQC Acceleration using GPUs: FrodoKEM, NewHope, and Kyber
Naina Gupta, Arpan Jati, Amit Kumar Chauhan and Anupam Chattopadhyay
IEEE Transactions on Parallel Distributed Systems 2021
Quantum Resource Estimates for Grover's Key Search on ARIA
Amit Kumar Chauhan and Somitra Sanadhya
SPACE 2020
Revocable Identity-based Encryption from Codes with Rank Metric
Donghoon Chang, Amit Kumar Chauhan, Sandeep Kumar and Somitra Sanadhya
CT-RSA 2018
RCB: Leakage-Resilient Authenticated Encryption via Re-Keying
Megha Agrawal, Tarun Bansal, Donghoon Chang, Amit Kumar Chauhan, Jinkeon Kang and Somitra Sanadhya
Journal of Supercomputing 2018
Exploiting the Leakage : Analysis of Some Authenticated Encryption Schemes
Donghoon Chang, Amit Kumar Chauhan, Naina Gupta, Arpan Jati and Somitra Sanadhya
SPACE 2016
Apollo: End-to-End Verifiable Voting Protocol using Mixnet and Hidden Tweaks
Donghoon Chang, Amit Kumar Chauhan, Muhammed Noufal K and Jinkeon Kang
ICISC 2015
Manuscripts
Quantum Security of Lai-Massey based FOX construction [ePrint]
Amit Kumar Chauhan and Somitra Kumar Sanadhya
Insider-Secure Signcryption with Multi-User Security from Discrete-Logarithm Assumptions
Donghoon Chang, Amit Kumar Chauhan and Somitra Sanadhya
Academic Visits
Applied Statistics Unit, Indian Statitical Institute, Kolkata. June 2022. Hosted by Prof. Mridul Nandi.
Institute of Information Science, Academia Sinica, Taiwan. From May 15, 2018 to July 30, 2018. Hosted by Kai-Min Chung.
Applied Statistics Unit, Indian Statitical Institute, Kolkata. Sept. 2017. Hosted by Mridul Nandi.
IACR-SEAMS school on “Cryptography: Foundations and New Directions”, Sept. 2016. Organized by Vietnam Institute for Advanced Study in Mathematics, Hanoi, Vietnam.
Centre for Artificial Intelligence and Robotics, DRDO, Bangalore. Dec. 1-30, 2011. Hosted by Bhupender Singh.