How do you get useful “predictive analytics” in healthcare without breaking that encryption? This smells like snake oil from cloud-vendors when I don’t have rigorous math proofs cited in the wikipedia page.
Homomorphic Encryption is a well-known field of research in cryptography. Honestly, if you are capable of understanding the proofs, you don’t need them to be listed on Wikipedia.
Couldn’t you technically figure out what the data is by doing a bunch of operations on it and observing the result? I’m not a math or security guy by any stretch but this seems almost too good to be true.