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Homomorphic implementor's toolkit

Bryce Ferenczi, Eric Crockett, Greg Linden
2020
Last updated May 13, 2023
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Homomorphic encryption is a special type of encryption scheme which enables computation of arbitrary functions on encrypted data. To evaluate a function f, a developer must implement f as a circuit F using only the "native" operation supported by the underlying homomorphic encryption scheme. Libraries which implement homomorphic encryption provide an API for these native operations which can be used to create homomorphic circuits. Creating a circuit also requires tracking ciphertext metadata throughout the computation such as ciphertext level, degree, and scale. This becomes infeasible for all but the smallest circuits.

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