Antonio is a Cryptographer and Researcher at the Ethereum Foundation, specializing in cryptographic protocols with a focus on elliptic curves and isogenies. He holds a PhD in Computer Science with a focus on Cryptography from Ruhr-University, where his research advanced the theoretical and practical understanding of elliptic curve and isogeny-based cryptography. Antonio's work bridges foundational cryptographic theory and its applications, contributing to the development of secure systems in the blockchain space. Previously, he worked at Adobe Research Switzerland and co-authored the book OAuth 2 in Action. His research interests center on the mathematical underpinnings of modern cryptographic schemes, particularly those leveraging algebraic structures.