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Publications

• 2024: NTRU-based FHE for Larger Key and Message Space.
  Coauthored with Robin Jadoul, Axel Mertens, and Jeongeun Park
  In ACISP 2024.
        BibTex


• 2024: Verifiable FHE via Lattice-based SNARKs.
  Coauthored with Shahla Atapoor, Karim Baghery, and Jannik Spiessens.
  In CiC (Communications in Cryptology).
        BibTex


• 2024: Towards Practical Transciphering for FHE with Setup Independent of the Plaintext Space.
  Coauthored with Pierrick Méaux and Jeongeun Park.
  In CiC (Communications in cryptology).
        BibTex


• 2023: Amortized Bootstrapping Revisited: Simpler, Asymptotically-faster, Implemented.
  Coauthored with Antonio Guimarães and Barry van Leeuwen.
  In Asiacrypt 2023, Guangzhou, China.
        BibTex


• 2023: BASALISC: Programmable Hardware Accelerator for BGV Fully Homomorphic Encryption.
  Coauthored with R. Geelen, M. Van Beirendonck, B. Huffman, T. McAuley, B. Selfridge, D. Wagner, G. Dimou, I. Verbauwhede, F. Vercauteren, and D. W. Archer.
  In: CHES 2023, Prague, Czech Republic.
    BibTex


• 2022: SortingHat: Efficient Private Decision Tree Evaluation via Homomorphic Encryption and Transciphering.
  Coauthored with Kelong Kong, Debajyoti Das, and Jeongeun Park
  In: ACM CCS. Los Angeles, USA.
        BibTex


• 2022: Homomorphically counting elements with the same property.
  Coauthored with Ilia Iliashenko, Malika Izabachène, and Axel Mertens.
  In: Proceedings on Privacy Enhancing Technologies (PoPETs). Sydney, Australia.
        BibTex


• 2022: FINAL: Faster FHE instantiated with NTRU and LWE.
  Coauthored with Charlotte Bonte, Ilia Iliashenko, Jeongeun Park, and Nigel P. Smart
  In: Asiacrypt 2022, Taipei, Taiwan.
        BibTex


• 2021: Introdução à criptografia completamente homomórfica com implementação em SAGE.
  This is the first chapter of the book Minicursos do XXI Simpósio Brasileiro de Segurança da Informação e de Sistemas Computacionais. In SBSeg 2021, Pará, Brazil.
    BibTex


• 2021: Bootstrapping fully homomorphic encryption over the integers in less than one second.
  In: PKC 2021, Edinburgh, Scotland.

Chosen as one of the three best papers of the conference. Invited to the Journal of Cryptology.

        BibTex


• 2020: Efficient AGCD-based homomorphic encryption for matrix and vector arithmetic.
  In: International Conference on Applied Cryptography and Network Security (ACNS 2020).
        BibTex


• 2019: On Kilian's Randomization of Multilinear Map Encodings.
  Coauthored with Prof. Jean-Sébastien Coron.
  In: Asiacrypt 2019, Kobe, Japan.
    BibTex


• 2017: Non-interactive Privacy-preserving k-NN Classifier.
  Coauthored with Prof. Diego de Freitas Aranha.
  In: International Conference on Information Systems Security and Privacy. Porto, Portugal.



• 2016: Principal Component Analysis over encrypted data using Homomorphic Encryption.
  Coauthored with Prof. Diego de Freitas Aranha.
  In: Workshop of Homomorphic Encryption Applications and Thechnology (HEAT). Paris, France



• 2015: Principal Component Analysis over encrypted data. (Extended Abstract)
  Coauthored with Prof. Diego de Freitas Aranha.
  In: Brazilian Symposium on Information and Computational Systems Security (SBSeg). Florianópolis, Santa Catarina, Brazil.



• 2012: Corpus-based Referring Expressions Generation.
  Coauthored with Éder M. de Novais, André C. Mariotti, and Prof. Ivandré Paraboni.
  In: Language Resources Evaluation Conference. Instanbul. Proceedings of the Eight International Conference on Laguage Resources and Evaluation (LREC'12).

Talks

• 2022: FHE based on the NTRU problem: challenges and new constructions.
  Invited talk for the series of presentations on homomorphic encryption, organized by FHE.org. Video available here and slides here


• 2022: Paper Homomorphically counting elements with the same propery.
  In PETs 2022. Video available here.


• 2020: Paper Bootstrapping FHE over the integers in less than one second.
  In PKC2021. Video available here.


• 2020: Homomorphic Encryption 101.
  In Institute of Mathematics and Statistics (IME) of the University of São Paulo.


• 2019: AKS Algorithm: Finding shortest nonzero vectors.
  In Seminar on lattices and their applications (in University of Luxembourg).


• 2011: Automated natural language generation. In: Nineteenth International Symposium of Undergraduate Research of the University of São Paulo (SIICUSP).