It's already possible to execute some algorithms on untrusted computers using homomorphic cryptosystems. I'm not sure what to what extend this will proceed - it

It's already possible to execute some algorithms on untrusted computers using homomorphic cryptosystems. I'm not sure what to what extend this will proceed - it might be possible to securely execute arbitrary algorithms on untrusted platforms. This is sort of a holy grail of cryptography - to be able to process secret information efficiently without gaining knowledge of it.