How can Private Set Intersection enable joint research without exposing raw lists?
Tests cryptography for cross-party data sharing. Strong answers describe PSI's encrypted intersection, cite homomorphic encryption or oblivious transfer, and note key management and compute cost.
Tests whether you can architect privacy-preserving data collaborations using cryptographic protocols rather than legal contracts alone. A strong answer walks through the server-client PSI flow where each party encrypts its user IDs, the protocol computes the intersection without decrypting individual items, and only the client receives the result. Prerequisites include agreeing on an encryption scheme like homomorphic encryption or oblivious transfer, establishing secure key exchange, and budgeting for significant computational overhead.
Read the original → openmined.org
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- #privacy
- #secure-computation
- #data-collaboration
- #psi
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