I’m a PhD candidate at the University of Pennsylvania advised by Sebastian Angel, where I build zero-knowledge proof systems. In my free time I row with Vesper Boat Club and Team USA.

I’m always open to collaboration or discussions about cryptography, privacy, or rowing — feel free to reach out! You can reach me at ecmargo@seas.upenn.edu.

Fast, succinct zero-knowledge proofs for context-free grammars, enabling verifiable parsing and structured-data checks without revealing the underlying input. [paper] [code]

Fast, succinct zero-knowledge proofs of regular-expression matching, letting a prover show that a private input matches a pattern without disclosing the input itself. [paper] [code]

A planner for massive-scale federated analytics with differential privacy, optimizing query execution across distributed data while bounding the total privacy budget. [paper] [code]