I think the science is there and the technology exists as a proof of concept [1]. The hard part, as is often the case, is getting the providers to adopt it and

I think the science is there and the technology exists as a proof of concept [1]. The hard part, as is often the case, is getting the providers to adopt it and users to use it. [1] Cristofaro, Lu, Tsudik: Efficient Techniques for Privacy-Preserving Sharing of Sensitive Information https://eprint.iacr.org/2011/113.pdf https://eprint.iacr.org/2011/113.pdf