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I have mildly secret data that I want to process, for example a credit card transaction, how do I securely decrypt, process, re-encrypt and upload to the destin

I have mildly secret data that I want to process, for example a credit card transaction, how do I securely decrypt, process, re-encrypt and upload to the destination? Processing that data requires a remote CPU that can't be spied upon. In a de-centralised environment how can I get a reasonable guarantee that the person hosting the CPU isn't just listening to the secrets?

pdimitar 9y ago
And how do you guarantee that in a centralized system? You don't. It's a wishful thinking based on unfounded trust. I can't answer your question directly. We simply can't rely on anyone hence we have encryption and key chains.
- KaiserPro 9y ago
  What threat model are you looking at? I'm talking about providing enough guarentees to sign a contract with another buisness, not hide from government actors. as a normal buisness I want to process sensitive information. That is not possible in the world you describe, with current CPUs