Sky Seminar: Trinabh Gupta (UCSB) – Private information retrieval from large-scale public data repositories

Speaker: Trinabh Gupta

Location: Soda 380

Date: September 15, 2023

Time: 11am-12pm PST


Private information retrieval from large-scale public data repositories


As more data moves to the cloud, privacy protection is becoming increasingly crucial in the field of databases. While much of the research in this area has focused on encryption-based solutions for _private_ databases, relatively little attention has been paid to provide privacy for querying _public_ or server-controlled databases where a user cannot encrypt the data. In this talk, I will discuss this underserved area and share recent results on private point queries over public key-value databases. I will also discuss how this problem builds on and is related to an area in cryptography called Private Information Retrieval or PIR. I will conclude my talk with open problems in this area and potential directions for future research.

Bio: Trinabh Gupta is an assistant professor in the Department of Computer Science at UCSB. His research focus is on large-scale, privacy-preserving computer systems. He has spent over ten years working in this area. Besides, he has gained valuable industry and startup experience through a Chief Scientist and advisor role at a privacy-focused startup called Data Secrets, Inc., and a privacy consultant role at VERA security, Inc. (acquired by HelpSystems, Inc.). Prior to joining UCSB, he was a postdoctoral researcher in the security and privacy research group at Microsoft Research, Redmond. He received his PhD from UT Austin and bachelors from IIT Delhi, both in computer science.