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Thomas Ristenpart Thomas Ristenpart
Visiting Researcher

Thomas Ristenpart is an Associate Professor at Cornell Tech and a member of the Computer Science department at Cornell University. He was a visiting scholar at Cloudflare in 2020-2021. His research spans a wide range of computer security topics, with recent focuses including digital privacy and safety in intimate partner violence, mitigating abuse and harassment online, cloud computing security, improvements to authentication mechanisms including passwords, confidentiality and privacy in machine learning, and topics in applied and theoretical cryptography.

Research Areas

Cryptography, Cloud Security, Mitigating Tech Abuse

Publications

2022Gossamer: Securely Measuring Password-based Logins

31st USENIX Security Symposium (USENIX Security 22), Boston, MA. 2022.
Marina Sanusi Bohuk, Mazharul Islam, Suleman Ahmad, Michael Swift, Thomas Ristenpart, Rahul Chatterjee

2022Might I Get Pwned: A Second Generation Compromised Credential Checking Service

31th USENIX Security Symposium (USENIX Security 22).
Bijeeta Pal, Mazharul Islam, Marina Sanusi Bohuk, Nick Sullivan, Luke Valenta, Tara Whalen, Christopher A. Wood, Thomas Ristenpart, Rahul Chattejee

2022A Fast and Simple Partially Oblivious PRF, with Applications

Advances in Cryptology – EUROCRYPT 2022: 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, Trondheim, Norway, May 30 – June 3, pp. 674–705, 2022.
Nirvan Tyagi, Sofía Celi, Thomas Ristenpart, Nick Sullivan, Stefano Tessaro, Christopher A. Wood

2019Protocols for checking compromised credentials

Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security, pp. 1387-1403. 2019.
Lucy Li, Bijeeta Pal, Junade Ali, Nick Sullivan, Rahul Chatterjee, Thomas Ristenpart

Blog posts