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Hospital saves data about a patient in a theoretical common file that tracks all his health info, but solely belongs to the patient. Insurance wants to add data
by ohgodplsno 5y ago
Hospital saves data about a patient in a theoretical common file that tracks all his health info, but solely belongs to the patient.
Insurance wants to add data about some reimbursements for glasses they've done, but should not be allowed to see his medical conditions.
FHE lets you work on the data and update it without ever revealing the contents.
- danuker 5y agoSo, you could do the same with an append-only log with no read permissions?
- ElFitz 5y agoAccept that, in the case of your append-only log, you need to trust that someone is applying that lack of read permission to themselves. And that they do it well.
- duckerude 5y agoCouldn't regular asymmetric encryption take care of that? Just encrypt each entry with the patient's public key. I think you only need homomorphic encryption if the transformation is something that the owner of data can't or shouldn't do themselves. It would be overkill for simple financial information.
- ElFitz 5y agoAbsolutely. That’s why gp’s parent mentioned working on the patients’ data, not just updating it. For example, running machine learning models on homomorphically encrypted health data.
- ElFitz 5y ago*Except that