One other thing that is really cool about secret sharing, is that you can actually perform computations (addition, multiplication) on secret-shared numbers. Thi

One other thing that is really cool about secret sharing, is that you can actually perform computations (addition, multiplication) on secret-shared numbers. This way you can actually perform arbitrary calculations "in the encrypted domain", in a way that is currently a lot more practical than fully homomorphic encryption. See https://en.wikipedia.org/wiki/Secure_multi-party_computation https://en.wikipedia.org/wiki/Secure_multi-party_computation