FHE in Production w/ Rotem Tsabary

​#Abstract

​Fully Homomorphic Encryption (FHE) has long promised the ability to compute on encrypted data, but real-world deployment has been limited by performance, usability, and system integration challenges.

​This talk presents a production-oriented view of FHE, focusing on what changes when encrypted computation is treated as a systems and execution problem rather than a purely cryptographic one. It introduces a GPU-native approach to FHE, where ciphertexts are represented as tensors and homomorphic operations are expressed as batched, parallel programs that map directly to modern accelerators.

​The presentation covers the architectural principles behind this approach and includes a practical example of how FHE programs are written and executed on a GPU, from ciphertext layout to custom kernel execution. The goal is to give practitioners an intuitive understanding of what “programming FHE for acceleration hardware” looks like in practice.

​#About the Speaker

Dr. Rotem Tsabary is a cryptographer and systems engineer, and the founder and CEO of Lattica. She holds a PhD in cryptography from the Weizmann Institute of Science and has prior experience utilizing large-scale ML infrastructure at Google. Her current work focuses on re-architecting Fully Homomorphic Encryption as a GPU-accelerated, tensorized compute workload suitable for deployment in real production systems.

​#More Information

Want more information, recordings of the presentations, slides, and other resources from the meetup? Visit this meetup's resource page at https://fhe.org/meetups/085

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