Pedro Capitão

Hi! I am a PhD candidate in the Cryptology Group at CWI Amsterdam, with Lisa Kohl as my supervisor. Before the PhD, I obtained my master's and bachelor's degrees in applied mathematics at IST, University of Lisbon.

My research interests include secure multi-party computation, homomorphic encryption, zero-knowledge proofs and post-quantum cryptography.

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Publications

Malicious Homomorphic Secret Sharing with Applications to DV-NIZK and More.
Pedro Capitão, Hila Dahari-Garbian, Lisa Kohl, and Zhe Li.
To appear at PKC 2026.
Full version
Communication-Efficient Multi-Party Computation for RMS Programs.
Thomas Attema, Aron van Baarsen, Stefan van den Berg, Pedro Capitão, Vincent Dunning, and Lisa Kohl.
Communications in Cryptology, 2024.
Full version 🞄 Journal version
On Homomorphic Secret Sharing from Polynomial-Modulus LWE.
Thomas Attema, Pedro Capitão, and Lisa Kohl.
PKC 2023.
Full version 🞄 Conference version
Lie Modules of Banach Space Nest Algebras.
Pedro Capitão and Lina Oliveira.
Advances on Nonlinear Functional Analysis, 2024.
Journal version
Hydrodynamics of Weakly Asymmetric Exclusion with Slow Boundary.
Pedro Capitão and Patrícia Gonçalves.
From Particle Systems to Partial Differential Equations, 2021.
Full version 🞄 Journal version
Private Constrained Pseudorandom Functions with Succinct Keys.
Pedro Capitão.
Master's Thesis, IST, 2021.
Thesis

Scientific Service

I was an external reviewer for the following conferences.

EUROCRYPT 2026
CRYPTO 2025
ASIACRYPT 2024
CRYPTO 2023
Innovations in Theoretical Computer Science (ITCS) 2022
Security and Cryptography for Networks (SCN) 2022

Teaching

I was a teaching assistant for the following courses.

Modern Cryptography (Mastermath).
2022, 2023, 2024, 2025.
Introduction to Cryptography (Mastermath).
2021.

Talks

Cryptology Seminar.
Malicious Homomorphic Secret Sharing.
CWI Amsterdam, 2025.
Quantum Software Consortium General Assembly.
Secret Sharing and Other Techniques in Secure Computation.
Leiden, 2024.
Quantum Software Consortium General Assembly.
Homomorphic Secret Sharing with Small Modulus.
Leiden, 2023.
Alliance for Privacy-Preserving Detection of Financial Crime.
Actively Secure MPC for RMS programs and Optimizations for Sparse Inputs.
ABN AMRO, Amsterdam, 2023.
PKC 2023.
On Homomorphic Secret Sharing from Polynomial-Modulus LWE.
Georgia Tech, Atlanta, 2023.
Cryptology Seminar.
On Homomorphic Secret Sharing from Polynomial-Modulus LWE.
CWI Amsterdam, 2023.
Winter School in Mathematics.
Private Constrained Pseudorandom Functions with Succinct Keys.
IST, Lisbon, 2021.
Colloquium on Interacting Particle Systems.
Hydrodynamics of Weakly Asymmetric Exclusion.
IST, Lisbon, 2020.
Workshop on Operator Theory, Complex Analysis and Applications.
On Lie Modules of Banach Space Nest Algebras.
Universidade do Minho, Guimarães, 2018.