I'm a nerd without much academic background interested in cryptographic techniques to improve privacy. For example, techniques like PAKEs offer interesting privacy tradeoffs and allow for E2EE as seen in software like password managers.

One big obstacle with E2EE, though, is that it relies on clients to do basically all of the computations. But, among other things, there are situations where you might imagine wanting to be able to allow an operation to be completed without needing both clients to actively participate, without revealing key matter directly.

Examples of FHE seem to stick to fairly simple things, but a lot of the more modern demos show off more interesting capabilities. What I wonder is, what is practical today using today's stacks? For example, could a server blindly perform cryptographic operations under the veil of FHE, potentially using parameters from multiple parties?

It seems like, if FHE proves to be robust and sufficiently secure, it has a lot of potential, and I really wonder what can be done with it today. I've made some effort to explore, but not being an academic a lot of it has been pretty difficult to grok.