Title: Building Cryptographic Systems from Distributed Trust

Speaker: Weikeng Chen

Advisor: Raluca Ada Popa

Date: Friday, April 29, 2022

Time: 11am-12pm

Meeting ID: 848 1220 6165

Abstract: Centralized systems are prone to data breaches, which can come from both hackers and malicious/compromised employees inside the company. The scale and prevalence of such data breaches raise concerns from users, companies, and governments. In this dissertation, we study how to build systems that distribute such centralized trust among many parties, such that the system remains secure as long as at least one of the parties is honest. We show how distributed trust can be used to secure systems for storage, learning, consensus, and authentication.