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Technically speaking, if Apple plans to perform PSI on device (as opposed to what Microsoft does), how come that "the device will not know whether a match has b
by klempotres 5y ago
Technically speaking, if Apple plans to perform PSI on device (as opposed to what Microsoft does), how come that "the device will not know whether a match has been found"?
Is there anyone who's familiar with the technology so they can explain how it works?
- gruez 5y ago>how come that "the device will not know whether a match has been found" Probably using some sort of probabilistic query like a bloom filter.
- klempotres 5y agoBut the claim is that Apple does that "on device". To the best of my understanding, this would mean that both parties in the PSI protocol are "on the same device". Do they probably use some kind of TEE (Trusted Execution Environment) to evaluate the "other side" of the PSI protocol?