This is the website of Sarah McCarthy, a researcher of post-quantum cryptography. Sarah is currently a postdoctoral researcher at the University of Waterloo, Ontario. She received her PhD in lattice-based cryptography at the Centre of Secure Information Technologies, Queen’s University Belfast in 2020.

Replacing existing forms of cryptography with lattice-based primitives is a popular option for the post-quantum world. Currently used forms of cryptography will be broken by quantum computers, and lattices have been shown to provide efficient, secure solutions with multi-functional capabilities.

Sarah’s research contributes towards ensuring these lattice-based primitives are secure against algorithmic and physical attacks, and are lightweight enough to be run on modern devices such as those used in the Internet Of Things and in applications such as Vehicle-to-Vehicle communication.

This website aims to give the visitor an insight into Sarah’s research, and is a reference point for her publications and presentations.