[lazaroclapp]

My intuition says we are not anywhere near there yet, but do you know if any video processing algorithms exist that can reasonably be executed on encrypted data? Basically, I know fully-homomorphic encryption is ridiculously inefficient in the general case. At the same time, I know of specialized homomorphic encryption algorithms that can operate on encrypted data of specific formats. There are efficient-ish algorithms for encrypted (social-network-type) graphs, and encrypted vote ballots.

I was wondering if you or anyone in your team has come across any work on privacy-preserving encrypted audio/image/video processing? I assume this is a very hard problem, but I imagine someone has tried looking into it.

[dguaraglia]

I'm not really the person to answer that (I'm a lowly software engineer keeping the cogs greased m'lord!) I know at some point Larry (https://github.com/lwneal) was looking into that, at least cursorily. I'll refer to him as the authority on anything encryption-related at Dropcam (or anything, in general. Brilliant guy!)