There will be no centralized processor because you already have it on your computer, and the program that will use it is called safebrowser (before it was safelauncher), it is it that connects you to safenetwork and that encrypts your data To secure them.
The only flaw that I had that I resolved is that the person who had to send the private key to the safenetwork could crack it, or even keep it on his computer, this is why it will be encrypted in double sha256, and the one that looks like a blockchain will have access to the decryption key.
Does this mean the private key(s) of the validator would be generated locally on Bob's or Alice's system?
But if that's the case, one could easily attach a debugger and see those private key values before they could even be encrypted and stored on safenetwork.
Perhaps I misunderstood something.