It was a really nice article.

Coincidence? Today I've switched my default search engine to DuckDuckGo instead of Google. I'll give it a one week try.

I am a coFounder for an electric smart grid company. A major long term problem for us is to find a way to provide our customer the complete propriety of their data.

How could we manage data without knowing much about it? Is there any simple way of encrypting some data and be able to make some transformation to them?

Something like:

    F(enc(x)) = enc(F(x)) ?

We are managing mostly consumption values, it would be nice to provide functions like the mean, max, FFT? I don't know.

Thanks for any idea.