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No, the client doesn’t have access to the CSAM hashes. And matches are verified on the server, not on the client.
by robertoandred 5y ago
No, the client doesn’t have access to the CSAM hashes. And matches are verified on the server, not on the client.
- belltaco 5y agoThe poster meant the algorithm to compute the hash has to be on the local device. And it's already been found. https://old.reddit.com/r/MachineLearning/comments/p6hsoh/p_appleneuralhash2onnx_reverseengineered_apple/ https://old.reddit.com/r/MachineLearning/comments/p6hsoh/p_a...
- arsome 5y agoIndeed, if they're proposing to only decrypt select images the client needs to know pass/fail at some point. Whether that's before or after sending the hashes to Apple's server really doesn't matter as bulk checks will likely be a part of API anyways. We'll have to wait for further reverse engineering to get full details here though.