Varun Madathil
Assistant Professor of Computer Science at New Jersey Institute of Technology.
Designing cryptographic protocols for private computation and anonymous interaction.
My research is in applied cryptography. I design and analyze cryptographic protocols for settings where privacy, anonymity, and security matter. My work has applications in distributed systems, blockchains, private communication, and privacy-preserving computation, including private data analytics and secure aggregation. I am also interested in emerging privacy and security questions around AI systems.
Prospective Ph.D. students
I am currently recruiting Ph.D. students.
I welcome prospective students interested in applied cryptography and its applications to privacy, anonymity, and security.
Selected Research
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TACITA: Threshold Aggregation without Client Interaction
CCS / 2026
Can we privately aggregate client inputs with one-shot, constant-size communication, even with dropouts and a malicious server?
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PriFHEte: Achieving Full-Privacy in Account-based Cryptocurrencies is Possible
ASIACRYPT / 2025
Can we give account-based cryptocurrencies anonymity among all accounts without making transaction size grow with the anonymity set?
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Jäger: Automated Telephone Call Traceback
CCS / 2024
Distinguished Paper Award
Can we trace abusive telephone calls in seconds without exposing call parties or carrier business data?
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Private Signaling
USENIX Security / 2022
Distinguished Paper Award
Can a recipient learn that a public bulletin board contains a message for them without revealing who they are or scanning the whole board?
- varun.madathil@njit.edu
- Office
- GITC 4311