About
I am a Ph.D. student at the University of Campinas (Unicamp), working in the Laboratory of Security and Cryptography (LASCA) under the supervision of Prof. Hilder Lima.
Previously, I earned my M.Sc. and B.Sc. degrees from the Federal University of Santa Catarina (UFSC) under the supervision of Prof. Ricardo Custódio, where I was a member of the Laboratory of Computer Security (LabSEC).
My main research focuses on Fully Homomorphic Encryption (FHE), a technology centered on preserving data privacy during computation. Specifically, I work on reducing the bootstrapping cost of FHE schemes from a theoretical perspective. During my Master's, I also researched applications of Post-Quantum Cryptography (PQC) and theoretical aspects aimed at strengthening the security of isogeny-based cryptographic schemes. More broadly, I am interested in cryptographic primitives studied from an algebraic point of view.
Publications
Hardened CTIDH: Dummy-Free and Deterministic CTIDH
Progress in Cryptology – INDOCRYPT 2025
@inproceedings{banegas2025hardened,
title={Hardened CTIDH: Dummy-Free and Deterministic CTIDH},
author={Banegas, Gustavo and Hellenbrand, Andreas and Saldanha, Matheus},
booktitle={International Conference on Cryptology in India},
pages={194--215},
year={2025},
organization={Springer}
}Enhancing LoRaWAN Security: Addressing Static Root Keys with Post-Quantum Cryptography
Anais do XXV Simpósio Brasileiro de Cibersegurança 2025
@inproceedings{saldanha2025enhancing,
title={Enhancing LoRaWAN Security: Addressing Static Root Keys with Post-Quantum Cryptography},
author={Saldanha, Matheus de O and Giron, Alexandre A and Cust{\'o}dio, Ricardo and Idalino, Tha{\'\i}s B},
booktitle={Simp{\'o}sio Brasileiro de Seguran{\c{c}}a da Informa{\c{c}}{\~a}o e de Sistemas Computacionais (SBSeg)},
pages={367--383},
year={2025},
organization={SBC}
}