Research Interests

Practical Secure Multi-Party Computation
Post-Quantum Cryptography
Quantum Cryptography
Privacy-Enhancing Technologies
Computing on Encrypted Data

My research interest is around designing and analyzing privacy-enhancing cryptographic primitives based on pre- and post-quantum assumptions. I work in strengthening the security aspects and decentralization of trust in primitives such as attribute-based encryption, functional encryption which allow fine-grained access control over the encrypted data.

For more information, see https://tapaspal9.github.io/homepage/

Publications

SACfe: Secure Access Control in Functional Encryption with Unbounded Data
Dowerah, U.; Dutta, S.; Hartmann, F.; Mitrokotsa, A.; Mukherjee, S.; Pal, T.
2024. IEEE 9th European Symposium on Security and Privacy (Euro&SP 2024), 860–882, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/EuroSP60621.2024.00053

Certified Everlasting Secure Collusion-Resistant Functional Encryption, and More
Hiroka, T.; Kitagawa, F.; Morimae, T.; Nishimaki, R.; Pal, T.; Yamakawa, T.
2024. Advances in Cryptology – EUROCRYPT 2024 – 43rd Annual International Conference on the Theory and Applications of Cryptographic Techniques, Zurich, Switzerland, May 26–30, 2024, Proceedings, Part III. Ed.: M. Joye, 434 – 456, Springer Nature Switzerland. doi:10.1007/978-3-031-58734-4_15

Reinforcing privacy in cloud computing via adaptively secure non-zero inner product encryption and anonymous identity-based revocation in unbounded setting
Dutta, S.; Pal, T.; Dutta, R.
2024. Theoretical Computer Science, 995, Art.-Nr.: 114502. doi:10.1016/j.tcs.2024.114502