Date of Award

Spring 1-1-2025

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Computer Science

First Advisor

Fischer, Michael

Abstract

This dissertation proposes a uniform infrastructure for identifying users and data on the Internet. It identifies the questions we need to ask, provides terminology to think and speak about digital identity, introduces new cryptographic primitives to support digital identity services, and finally presents a sequence of applications that could be built upon the foundation of a shared digital identity infrastructure. These solution sketches are not meant as final specifications. They are examples to demonstrate how digital identity infrastructure could make it easier for digital platforms to deploy new services, improve privacy, reduce user frustration, and support the rule of law and civil society.

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