Simone Colombo's website

I am a PhD student in the DEDIS research group at EPFL in Switzerland, advised by Bryan Ford.
My research interests lie in the intersection of cryptography, security and computer systems, with a particular focus on secure messaging.

My email address is . For secure communication, I’m happy to connect on Signal: just reach out to ask!

Publications

  1. Real-World Deniability in Messaging
    Daniel Collins, Simone Colombo, Loïs Huguenin-Dumittan
    PETS 2025 (to appear), preliminary version presented at RWC 2023
    [full version] [preliminary version]
  2. E-Vote Your Conscience: Perceptions of Coercion and Vote Buying, and the Usability of Fake Credentials in Online Voting
    Louis-Henri Merino, Alaleh Azhir, Haoqian Zhang, Simone Colombo, Bernhard Tellenbach, Vero Estrada-Galiñanes, Bryan Ford
    IEEE S&P (Oakland) 2024
    [full version] [conference version]
  3. On Active Attack Detection in Messaging with Immediate Decryption
    Khashayar Barooti, Daniel Collins, Simone Colombo, Loïs Huguenin-Dumittan, Serge Vaudenay
    CRYPTO 2023
    [full version] [conference version]
  4. Authenticated private information retrieval
    Simone Colombo, Kirill Nikitin, Henry Corrigan-Gibbs, David J. Wu, Bryan Ford
    USENIX Security 2023
    [full version] [conference version] [code] [talk] [slides] [demo]

Preprints

  1. TRIP: Trust-Limited Coercion-Resistant In-Person Voter Registration
    Louis-Henri Merino, Simone Colombo, Rene Reyes, Alaleh Azhir, Haoqian Zhang, Jeff Allen, Bernhard Tellenbach, Estrada-Galiñanes, Bryan Ford
    [full version]
  2. Constant-Time Arithmetic for Safer Cryptography
    Lúcás Críostóir Meier, Simone Colombo, Marin Thiercelin, Bryan Ford
    [full version]

Talks

  1. Authenticated private information retrieval
    USENIX Security, August 2023 [video] [slides]
    MIT CSAIL Security Seminar, May 2023
    NYU Crypto Reading Group, May 2023

Miscellaneous