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

Research
Sujoy is interested in the implementation aspects of cryptography.
Ongoing third-party funded projects
- Secure and efficient implementation of Post-quantum Cryptography
- Hardware acceleration of homomorphic encryption
Postdoctoral researchers
PhD researchers
- Aikata
- Andrea Basso (co-supervision UoB)
- David Jacqemin
- To be announced
MSc project researchers
- Florian Hirner
Publications in 2021-22
- Malik Imran and Felipe Almeida and Andrea Basso and Sujoy Sinha Roy and Samuel Pagliarini: High-speed SABER Key Encapsulation Mechanism in 65nm CMOS. IACR Cryptol. ePrint Arch. 2022: 530 (2022)
- 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 Cryptol. ePrint Arch. 2022: 480 (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) - 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. IACR Cryptol. ePrint Arch. 2021: 1461 (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
- ‘Cryptographic Engineering‘ during the winter session. The course will teach how to implement cryptographic algorithms securely and efficiently.
https://www.iaik.tugraz.at/ce