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Lighthouse: Single-Server Secure Aggregation with O(1) Server-Committee Communication at Scale
Secure aggregation is a core primitive for privacy-preserving federated learning, enabling a server to compute aggregates of client …
Sanjam Garg, Alireza Kavousi, Dimitris Kolonelos, Erkan Tairi, Zhipeng Wang
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(Fine-Grained) Unbounded Inner-Product Functional Encryption from LWE
Inner-product functional encryption (IPFE), introduced by Abdalla-Bourse-De Caro-Pointcheval (PKC'15), is a public-key primitive that …
Valerio Cini, Erkan Tairi
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Registered Functional Encryption for Pseudorandom Functionalities from Lattices: Registered ABE for Unbounded Depth Circuits and Turing Machines, and More
Registered functional encryption (RFE) is a generalization of public-key encryption that enables computation on encrypted data (like …
Tapas Pal, Robert Schädlich, Erkan Tairi
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LeOPaRd: Towards Practical Post-Quantum Oblivious PRFs via Interactive Lattice Problems
In this work, we introduce a more efficient post-quantum oblivious PRF (OPRF) design, called LeOPaRd. Our proposal is round-optimal and …
Muhammed F. Esgin, Ron Steinfeld, Erkan Tairi, Jie Xu
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