Author

Lucas Piske

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U NITED : Shuffle-Free Multiparty PSU via Oblivious Invertible Sketches

U NITED is presented, a shuffle-free MPSU framework based on a new data-structure abstraction, Oblivious Insert-Only In-vertible Sketches (OIIS), which ensures that each distinct union element is inserted exactly once while hiding the insertion condition and modified locations.

S. Trường, Nguyen, Lucas Piske et al. · 0 citations

Open access Aug 2026

Paras: Actively Secure Two-Server Private Histograms

Paras, the first two-server protocol for private histogram computation that achieves robustness against collusion between a malicious server and arbitrarily many malicious clients is presented, and is shown to be highly efficient and scalable.

Dimitris Mouris, Lucas Piske, Pratik Sarkar et al. · IACR Cryptology ePrint Archi... · 0 citations