Sujoy Sinha Roy
Ass.Prof. PhDSecure Systems, Assistant Professor

Research
Bachelors and Masters project topics
Ongoing third-party funded projects
- Secure and efficient implementation of Post-quantum Cryptography
- Hardware acceleration of Homomorphic encryption
Postdoctoral researchers
Current PhD researchers
Current MSc project researchers
- Ian Khodachenko
- Florian Krieger
- Michael Streibl
- Daniel Sanz Sobrino
- Constantin Piber
- Slaven Vidaković
Publications in 2021-24
- Anisha Mukherjee, Aikata, Ahmet Can Mert, Yongwoo Lee, Sunmin Kwon, Maxim Deryabin, Sujoy Sinha Roy: ModHE: Modular Homomorphic Encryption Using Module Lattices: Potentials and Limitations. IACR Trans. Cryptogr. Hardw. Embed. Syst. 2024(1).
- Florian Krieger, Florian Hirner, Ahmet Can Mert, and Sujoy Sinha Roy: Aloha-HE: A Low-Area Hardware Accelerator for Client-Side Operations in Homomorphic Encryption. In Design Automation and Test (DATE) 2024.
- Aikata, Ahmet Can Mert, Sunmin Kwon, Maxim Deryabin, Sujoy Sinha Roy: REED: Chiplet-Based Scalable Hardware Accelerator for Fully Homomorphic Encryption. CoRR abs/2308.02885 (2023)
- David Jacquemin, Anisha Mukherjee, Sujoy Sinha Roy, Péter Kutas: Towards a constant-time implementation of isogeny-based signature, SQISign. IACR Cryptol. ePrint Arch. 2023: 807 (2023)
- Florian Hirner, Michael Streibl, Ahmet Can Mert, Sujoy Sinha Roy: A Hardware Implementation of MAYO Signature Scheme. IACR Cryptol. ePrint Arch. 2023: 1267 (2023)
- David Jacquemin, Anisha Mukherjee, Ahmet Can Mert, Sujoy Sinha Roy: Parallel Hardware for Isogeny-based VDF: Attacker’s Perspective. IACR Cryptol. ePrint Arch. 2023: 1396 (2023)
- Aikata Aikata and Andrea Basso and Gaetan Cassiers and Ahmet Can Mert and Sujoy Sinha Roy: Kavach: Lightweight masking techniques for polynomial arithmetic in lattice-based cryptography. IACR Trans. Cryptogr. Hardw. Embed. Syst. 2023(3).
- Ahmet Can Mert and Aikata and Sunmin Kwon and Youngsam Shin and Donghoon Yoo and Yongwoo Lee and Sujoy Sinha Roy: Medha: Microcoded Hardware Accelerator for computing on Encrypted Data. IACR Trans. Cryptogr. Hardw. Embed. Syst. 2023(1).
- Aikata Aikata and Ahmet Can Mert and Malik Imran and Samuel Pagliarini and Sujoy Sinha Roy: KaLi: A Crystal for Post-Quantum Security Using Kyber and Dilithium. IEEE Transactions on Circuits and Systems 1 (2023).
- Aikata Aikata, Ahmet Can Mert, David Jacquemin, Amitabh Das, Donald Matthews, Santosh Ghosh, Sujoy Sinha Roy: A Unified Cryptoprocessor for Lattice-based Signature and Key-exchange. Accepted for publication in IEEE Transactions on Computers (2023).
- Malik Imran, Aikata Aikata, Sujoy Sinha Roy, Samuel Pagliarini: High-speed Design of Post Quantum Cryptography with Optimized Hashing and Multiplication. IEEE Transactions on Circuits and Systems 2 (2023).
- Malik Imran, Felipe Almeida, Andrea Basso, Sujoy Sinha Roy, Samuel Pagliarini: High-speed SABER Key Encapsulation Mechanism in 65nm CMOS. Journal of Cryptographic Engineering 2023.
- Sujoy Sinha Roy and Utsav Banerjee: Preventing a Crypto-Apocalypse — From Mathematics to Circuits for Post-Quantum Cryptography. IEEE Solid-State Circuits Magazine ( Volume: 15, Issue: 1, winter 2023)
- Florian Hirner and Ahmet Can Mert and Sujoy Sinha Roy: PROTEUS: A Tool to generate pipelined Number Theoretic Transform Architectures for FHE and ZKP applications. Cryptology ePrint Archive, Paper 2023/267.
- Prasanna Ravi, Shivam Bhasin, Anupam Chattopadhyay, Aikata, Sujoy Sinha Roy: Backdooring Post-Quantum Cryptography: Kleptographic Attacks on Lattice-based KEMs. IACR Cryptol. ePrint Arch. 2022: 1681 (2022).
- David Jacquemin and Ahmet Can Mert and Sujoy Sinha Roy: Exploring RNS for Isogeny-based Cryptography. IACR Cryptol. ePrint Arch. 2022: 1289 (2022)
- Jipeng Zhang and Junhao Huang and Zhe Liu and Sujoy Sinha Roy: Time-memory Trade-offs for Saber+ on Memory-constrained RISC-V. IEEE Transactions on Computers 2022.
- Prasanna Ravi, Martianus Frederic Ezerman, Shivam Bhasin, Anupam Chattopadhyay, Sujoy Sinha Roy:
Will You Cross the Threshold for Me? Generic Side-Channel Assisted Chosen-Ciphertext Attacks on NTRU-based KEMs. IACR Trans. Cryptogr. Hardw. Embed. Syst. 2022(1): 722-761 (2022). - Prasanna Ravi, Shivam Bhasin, Sujoy Sinha Roy, Anupam Chattopadhyay: On Exploiting Message Leakage in (few) NIST PQC Candidates for Practical Message Recovery and Key Recovery Attacks. IEEE Transactions on Information Forensics and Security 2021.
- Sujoy Sinha Roy, Ahmet Can Mert, Aikata, Sunmin Kwon, Youngsam Shin, Donghoon Yoo:
Accelerator for Computing on Encrypted Data. IACR Cryptol. ePrint Arch. 2021: 1555 (2021) - Zhuang Xu, Owen Pemberton, Sujoy Sinha Roy, David F. Oswald: Magnifying Side-Channel Leakage of Lattice-Based Cryptosystems with Chosen Ciphertexts: The Case Study of Kyber. IEEE Transactions on Computers 2021.
- Malik Imran, Felipe Almeida, Jaan Raik, Andrea Basso, Sujoy Sinha Roy, Samuel Pagliarini:
Design Space Exploration of SABER in 65nm ASIC. ASHES@CCS 2021: 85-90 - Andrea Basso, Sujoy Sinha Roy: Optimized Polynomial Multiplier Architectures for Post-Quantum KEM Saber. DAC 2021: 1285-1290
Teaching
- Cryptography on Hardware Platform (Winter Semester)
- Digital System Design (Summer Semester)
- Cryptography on Software Platform (Summer Semester)