As somebody with some ML background but no expertise in crypto, is the following ELI~20 summary correct?
We take an ML model trained on unencrypted data, use a 'homomorphic evaluation' technique (let's just leave that as magic here) to convert the model operation-by-operation to a model that runs on encrypted data, do a little more crypto magic, and we've solved the business problem described at the beginning of the article.
(In particular, if you train a model on encrypted data you get a really bad model, right?)
We take an ML model trained on unencrypted data, use a 'homomorphic evaluation' technique (let's just leave that as magic here) to convert the model operation-by-operation to a model that runs on encrypted data, do a little more crypto magic, and we've solved the business problem described at the beginning of the article.
(In particular, if you train a model on encrypted data you get a really bad model, right?)