It's fantastic to see great research combined with great tutorials – bravo. You all have bitten off an incredibly hard problem with pragmatism and tenacity. Keep up the great work.
My first thought was that this complements differentially private systems nicely, but seems like it was your intention to use it as a building block for things like that anyway. Very cool work! I think it's really important to have such secure primitives that are easy to build upon, maybe secure multiparty computation and such will finally become more widespread.
Paper: https://arxiv.org/abs/1811.04017.pdf