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In the case of single key FHE with server-side processing (the demo setup), the server can never gains any insight, even as an active adversary that can arbitrarily deviate from th…

A local model works when one party owns everything. But often you'll have more than one party, for example different machine operators, the machine manufacturer, the sensor provide…

This is specific to the current state of the demo. Additional techniques can reduce fresh encryptions to only a few times the plaintext size, but they have not been deployed yet.

It uses randomized symmetric encryption with fresh public randomness for every encryption. Ciphertexts are computationally indistinguishable from random and do not reveal whether t…