Publications

Authors: Yanis Belkheyar, Patrick Derbez, Shibam Ghosh, Gregor Leander, Silvia Mella, Léo Perrin, Shahram Rasoolzadeh, Lukas Stennes, Siwei Sun, Gilles Assche, Damian Vizár

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Quantum Key Recovery Attacks on 4-Round Iterated Even-Mansour with Two Keys

Published in Proceedings of Information Security Conference (ISC), 2024

Authors: Ravi Anand, Shibam Ghosh, Takanori Isobe, Rentaro Shiba

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Partial Sums Meet FFT: Improved Attack on 6-Round AES

Published in Advances in Cryptology – Proceedings of EUROCRYPT, 2024

Authors: Orr Dunkelman, Shibam Ghosh, Nathan Keller, Gaëtan Leurent, Avichai Marmor, Victor Mollimard

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BIZness: Bit Invariant Zero-Sum Property Based on Division Trail

Published in Progress in Cryptology – INDOCRYPT, 2024

Authors: Shibam Ghosh, Anup Kundu, Mostafizar Rahman, Dhiman Saha

Divide and Rule: DiFA - Division Property Based Fault Attacks on PRESENT and GIFT

Published in Applied Cryptography and Network Security (ACNS), 2023

Authors: Anup Kundu, Shibam Ghosh, Dhiman Saha, Mostafizar Rahman

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INT-RUP Security of SAEB and TinyJAMBU

Published in Progress in Cryptology – INDOCRYPT, 2022

Authors: Nilanjan Datta, Avijit Dutta, Shibam Ghosh

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Full Round Zero-Sum Distinguishers on TinyJAMBU-128 and TinyJAMBU-192 Keyed-Permutation in the Known-Key Setting

Published in Progress in Cryptology – INDOCRYPT, 2022

Authors: Orr Dunkelman, Shibam Ghosh, Eran Lambooij

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Some Experimental Results on Quadratic APN Functions

Published in hrefhttps://boolean.w.uib.no/bfa-2021/Boolean Functions and their Applications (BFA) 2021, 2021

Authors: Shibam Ghosh, Léo Perrin

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Automatic Search for Bit-Based Division Property

Published in Progress in Cryptology – LATINCRYPT, 2021

Authors: Shibam Ghosh, Orr Dunkelman

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Journal Articles

EWEMrl: A White-Box Secure Cipher with Longevity

Published in IACR Communications in Cryptology (CiC), 2026

Authors: Avik Chakraborti, Shibam Ghosh, Takanori Isobe, Sajani Kundu

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Cryptanalysis of TFHE-Friendly Cipher FRAST

Published in IACR Transactions on Symmetric Cryptology (TOSC), 2026

Authors: Antoine Bak, Shibam Ghosh, Fukang Liu, Willi Meier, Jianqiang Ni, Léo Perrin

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ToFA: Towards Fault Analysis of GIFT and GIFT-like Ciphers Leveraging Truncated Impossible Differentials

Published in IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES), 2025

Authors: Anup Kundu, Shibam Ghosh, Aikata Aikata, Dhiman Saha

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Simple vs. vectorial: exploiting structural symmetry to beat the ZeroSum distinguisher

Published in Designs, Codes, and Cryptography (DCC), 2025

Authors: Sahiba Suryawanshi, Shibam Ghosh, Dhiman Saha, Prathamesh Ram

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HCTR+: An Optimally Secure TBC-Based Accordion Mode

Published in IACR Transactions on Symmetric Cryptology (TOSC), 2025

Authors: Nilanjan Datta, Avijit Dutta, Shibam Ghosh, Eik List, Hrithik Nandi

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Differential Cryptanalysis of the Reduced Pointer Authentication Code Function Used in Arm's FEAT_PACQARMA3 Feature

Published in IACR Transactions on Symmetric Cryptology (TOSC), 2025

Authors: Roberto Avanzi, Orr Dunkelman, Shibam Ghosh

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AutoDiVer: Automatically Verifying Differential Characteristics and Learning Key Conditions

Published in IACR Transactions on Symmetric Cryptology (TOSC), 2025

Authors: Marcel Nageler, Shibam Ghosh, Marlene Jüttler, Maria Eichlseder

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The QARMAv2 Family of Tweakable Block Ciphers

Published in IACR Transactions on Symmetric Cryptology (TOSC), 2023

Authors: Roberto Avanzi, Subhadeep Banik, Orr Dunkelman, Maria Eichlseder, Shibam Ghosh, Marcel Nageler, Francesco Regazzoni

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Practical Related-Key Forgery Attacks on Full-Round TinyJAMBU-192/256

Published in IACR Transactions on Symmetric Cryptology (TOSC), 2023

Authors: Orr Dunkelman, Shibam Ghosh, Eran Lambooij

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Attacking the IETF/ISO Standard for Internal Re-keying CTR-ACPKM

Published in IACR Transactions on Symmetric Cryptology (TOSC), 2023

Authors: Orr Dunkelman, Shibam Ghosh, Eran Lambooij

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