https://en.wikipedia.org/wiki/Homomorphic_encryption https://en.wikipedia.org/wiki/Homomorphic_encryption My understanding is that it is possible, and Turing-c

https://en.wikipedia.org/wiki/Homomorphic_encryption https://en.wikipedia.org/wiki/Homomorphic_encryption My understanding is that it is possible, and Turing-complete systems can be built, but they are slow and unwieldy, requiring a large amount of cyphertext to encode data (on the order of 4KB per float, I seem to recall). It's still up for debate whether or not such techniques will eventually be up for general distributed computing, e.g. distributing a VM instance over multiple distributed servers; or just for specific use-cases, e.g. bitcoin-esque distribution of small transactions, etc.