HE allows third-parties to perform processing without seeing the plaintext. This allows sensitive data to be held and processed by a cloud computing platform. I

HE allows third-parties to perform processing without seeing the plaintext. This allows sensitive data to be held and processed by a cloud computing platform. It could also be useful for untrusted peer-to-peer computing (something like Ethereum). It seems too inefficient to be practical at the moment, but on the other hand that hasn't stopped cryptocurrencies before...